Clean up BaritoneResourcePack

Fix proguard not working when compiling with srg mappings

README.md

@@ -1,11 +1,16 @@
 # Baritone
 [![Build Status](https://travis-ci.com/cabaletta/baritone.svg?branch=master)](https://travis-ci.com/cabaletta/baritone)
 [![Release](https://img.shields.io/github/release/cabaletta/baritone.svg)](https://github.com/cabaletta/baritone/releases)
-[![License](https://img.shields.io/github/license/cabaletta/baritone.svg)](LICENSE)
+[![License](https://img.shields.io/badge/license-LGPL--3.0-green.svg)](LICENSE)
 [![Codacy Badge](https://api.codacy.com/project/badge/Grade/a73d037823b64a5faf597a18d71e3400)](https://www.codacy.com/app/leijurv/baritone?utm_source=github.com&utm_medium=referral&utm_content=cabaletta/baritone&utm_campaign=Badge_Grade)
 [![HitCount](http://hits.dwyl.com/cabaletta/baritone.svg)](http://hits.dwyl.com/cabaletta/baritone)
+[![Known Vulnerabilities](https://snyk.io/test/github/cabaletta/baritone/badge.svg?targetFile=build.gradle)](https://snyk.io/test/github/cabaletta/baritone?targetFile=build.gradle)
 [![contributions welcome](https://img.shields.io/badge/contributions-welcome-brightgreen.svg?style=flat)](https://github.com/cabaletta/baritone/issues)
 [![Minecraft](https://img.shields.io/badge/MC-1.12.2-green.svg)](https://minecraft.gamepedia.com/1.12.2)
+[![Impact integration](https://img.shields.io/badge/Impact%20integration-v1.0.0--hotfix--4-brightgreen.svg)](https://impactdevelopment.github.io/)
+[![KAMI integration](https://img.shields.io/badge/KAMI%20integration-v1.0.0-orange.svg)](https://github.com/zeroeightysix/KAMI/)
+[![Asuna integration](https://img.shields.io/badge/Asuna%20integration-v1.0.0-orange.svg)](https://github.com/EmotionalLove/Asuna/)
+[![Future integration](https://img.shields.io/badge/Future%20integration-%3F%3F%3F-red.svg)](https://futureclient.net/)
 
 A Minecraft pathfinder bot. 
 
@@ -38,7 +43,7 @@ Building Baritone:
 $ gradlew build
 ```
 
-For example, to replace out Impact 4.4's Baritone build with a customized one, switch to the `impact4.4-compat` branch, build Baritone as above then copy `dist/baritone-api-$VERSION$.jar` into `minecraft/libraries/cabaletta/baritone-api/1.0.0/baritone-api-1.0.0.jar`, replacing the jar that was previously there. You also need to edit `minecraft/versions/1.12.2-Impact_4.4/1.12.2-Impact_4.4.json`, find the line `"name": "cabaletta:baritone-api:1.0.0"`, remove the comma from the end, and entirely remove the line that's immediately after (starts with `"url"`). 
+To replace out Impact 4.4's Baritone build with a customized one, switch to the `impact4.4-compat` branch, build Baritone as above then copy `dist/baritone-api-$VERSION$.jar` into `minecraft/libraries/cabaletta/baritone-api/1.0.0/baritone-api-1.0.0.jar`, replacing the jar that was previously there. You also need to edit `minecraft/versions/1.12.2-Impact_4.4/1.12.2-Impact_4.4.json`, find the line `"name": "cabaletta:baritone-api:1.0.0"`, remove the comma from the end, and entirely remove the line that's immediately after (starts with `"url"`). 
 
 ## IntelliJ's Gradle UI
 - Open the project in IntelliJ as a Gradle project

build.gradle

@@ -98,6 +98,11 @@ mixin {
     add sourceSets.launch, 'mixins.baritone.refmap.json'
 }
 
+javadoc {
+    source = sourceSets.api.allJava
+    classpath = sourceSets.api.compileClasspath
+}
+
 jar {
     from sourceSets.launch.output, sourceSets.api.output
     preserveFileTimestamps = false
@@ -107,7 +112,6 @@ jar {
 task proguard(type: ProguardTask) {
     url 'https://downloads.sourceforge.net/project/proguard/proguard/6.0/proguard6.0.3.zip'
     extract 'proguard6.0.3/lib/proguard.jar'
-    versionManifest 'https://launchermeta.mojang.com/mc/game/version_manifest.json'
 }
 
 task createDist(type: CreateDistTask, dependsOn: proguard)

buildSrc/src/main/java/baritone/gradle/task/ProguardTask.java

@@ -18,21 +18,26 @@
 package baritone.gradle.task;
 
 import baritone.gradle.util.Determinizer;
-import com.google.gson.*;
+import baritone.gradle.util.MappingType;
+import baritone.gradle.util.ReobfWrapper;
 import org.apache.commons.io.IOUtils;
+import org.gradle.api.NamedDomainObjectContainer;
 import org.gradle.api.artifacts.Configuration;
 import org.gradle.api.artifacts.Dependency;
+import org.gradle.api.internal.plugins.DefaultConvention;
 import org.gradle.api.tasks.Input;
 import org.gradle.api.tasks.TaskAction;
 import org.gradle.internal.Pair;
 
 import java.io.*;
+import java.lang.reflect.Field;
 import java.net.URL;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.*;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
+import java.util.stream.Collectors;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipFile;
 
@@ -52,10 +57,6 @@ public class ProguardTask extends BaritoneGradleTask {
     @Input
     private String extract;
 
-    @Input
-    private String versionManifest;
-
-    private Map<String, String> versionDownloadMap;
     private List<String> requiredLibraries;
 
     @TaskAction
@@ -67,7 +68,6 @@ public class ProguardTask extends BaritoneGradleTask {
         downloadProguard();
         extractProguard();
         generateConfigs();
-        downloadVersionManifest();
         acquireDependencies();
         proguardApi();
         proguardStandalone();
@@ -132,20 +132,6 @@ public class ProguardTask extends BaritoneGradleTask {
         });
     }
 
-    private void downloadVersionManifest() throws Exception {
-        Path manifestJson = getTemporaryFile(VERSION_MANIFEST);
-        write(new URL(this.versionManifest).openStream(), manifestJson);
-
-        // Place all the versions in the map with their download URL
-        this.versionDownloadMap = new HashMap<>();
-        JsonObject json = readJson(Files.readAllLines(manifestJson)).getAsJsonObject();
-        JsonArray versions = json.getAsJsonArray("versions");
-        versions.forEach(element -> {
-            JsonObject object = element.getAsJsonObject();
-            this.versionDownloadMap.put(object.get("id").getAsString(), object.get("url").getAsString());
-        });
-    }
-
     private void acquireDependencies() throws Exception {
 
         // Create a map of all of the dependencies that we are able to access in this project
@@ -163,15 +149,13 @@ public class ProguardTask extends BaritoneGradleTask {
 
         // Iterate the required libraries to copy them to tempLibraries
         for (String lib : this.requiredLibraries) {
-            // Download the version jar from the URL acquired from the version manifest
-            if (lib.startsWith("minecraft")) {
-                String version = lib.split("-")[1];
-                Path versionJar = getTemporaryFile("tempLibraries/" + lib + ".jar");
-                if (!Files.exists(versionJar)) {
-                    JsonObject versionJson = PARSER.parse(new InputStreamReader(new URL(this.versionDownloadMap.get(version)).openStream())).getAsJsonObject();
-                    String url = versionJson.getAsJsonObject("downloads").getAsJsonObject("client").getAsJsonPrimitive("url").getAsString();
-                    write(new URL(url).openStream(), versionJar);
-                }
+            // copy from the forgegradle cache
+            if (lib.equals("minecraft")) {
+                Path cachedJar = getMinecraftJar();
+                Path inTempDir = getTemporaryFile("tempLibraries/minecraft.jar");
+                // TODO: maybe try not to copy every time
+                Files.copy(cachedJar, inTempDir, REPLACE_EXISTING);
+
                 continue;
             }
 
@@ -195,6 +179,89 @@ public class ProguardTask extends BaritoneGradleTask {
         }
     }
 
+    // a bunch of epic stuff to get the path to the cached jar
+    private Path getMinecraftJar() throws Exception {
+        MappingType mappingType;
+        try {
+            mappingType = getMappingType();
+        } catch (Exception e) {
+            System.err.println("Failed to get mapping type, assuming NOTCH.");
+            mappingType = MappingType.NOTCH;
+        }
+
+        String suffix;
+        switch (mappingType) {
+            case NOTCH:
+                suffix = "";
+                break;
+            case SEARGE:
+                suffix = "-srgBin";
+                break;
+            case CUSTOM:
+                throw new IllegalStateException("Custom mappings not supported!");
+            default:
+                throw new IllegalStateException("Unknown mapping type: " + mappingType);
+        }
+
+        DefaultConvention convention = (DefaultConvention) this.getProject().getConvention();
+        Object extension = convention.getAsMap().get("minecraft");
+        Objects.requireNonNull(extension);
+
+        // for some reason cant use Class.forName
+        Class<?> class_baseExtension = extension.getClass().getSuperclass().getSuperclass().getSuperclass();
+        Field f_replacer = class_baseExtension.getDeclaredField("replacer");
+        f_replacer.setAccessible(true);
+        Object replacer = f_replacer.get(extension);
+        Class<?> class_replacementProvider = replacer.getClass();
+        Field replacement_replaceMap = class_replacementProvider.getDeclaredField("replaceMap");
+        replacement_replaceMap.setAccessible(true);
+
+        Map<String, Object> replacements = (Map) replacement_replaceMap.get(replacer);
+        String cacheDir = replacements.get("CACHE_DIR").toString() + "/net/minecraft";
+        String mcVersion = replacements.get("MC_VERSION").toString();
+        String mcpInsert = replacements.get("MAPPING_CHANNEL").toString() + "/" + replacements.get("MAPPING_VERSION").toString();
+        String fullJarName = "minecraft-" + mcVersion + suffix + ".jar";
+
+        String baseDir = String.format("%s/minecraft/%s/", cacheDir, mcVersion);
+
+        String jarPath;
+        if (mappingType == MappingType.SEARGE) {
+            jarPath = String.format("%s/%s/%s", baseDir, mcpInsert, fullJarName);
+        } else {
+            jarPath = baseDir + fullJarName;
+        }
+        jarPath = jarPath
+                .replace("/", File.separator)
+                .replace("\\", File.separator); // hecking regex
+
+        return new File(jarPath).toPath();
+    }
+
+    // throws IllegalStateException if mapping type is ambiguous or it fails to find it
+    private MappingType getMappingType() {
+        // if it fails to find this then its probably a forgegradle version problem
+        Set<Object> reobf = (NamedDomainObjectContainer<Object>) this.getProject().getExtensions().getByName("reobf");
+
+        List<MappingType> mappingTypes = getUsedMappingTypes(reobf);
+        long mappingTypesUsed = mappingTypes.size();
+        if (mappingTypesUsed == 0) {
+            throw new IllegalStateException("Failed to find mapping type (no jar task?)");
+        }
+        if (mappingTypesUsed > 1) {
+            throw new IllegalStateException("Ambiguous mapping type (multiple jars with different mapping types?)");
+        }
+
+        return mappingTypes.get(0);
+    }
+
+    private List<MappingType> getUsedMappingTypes(Set<Object> reobf) {
+        return reobf.stream()
+                .map(ReobfWrapper::new)
+                .map(ReobfWrapper::getMappingType)
+                .distinct()
+                .collect(Collectors.toList());
+    }
+
     private void proguardApi() throws Exception {
         runProguard(getTemporaryFile(PROGUARD_API_CONFIG));
         Determinizer.determinize(this.proguardOut.toString(), this.artifactApiPath.toString());
@@ -219,10 +286,6 @@ public class ProguardTask extends BaritoneGradleTask {
         this.extract = extract;
     }
 
-    public void setVersionManifest(String versionManifest) {
-        this.versionManifest = versionManifest;
-    }
-
     private void runProguard(Path config) throws Exception {
         // Delete the existing proguard output file. Proguard probably handles this already, but why not do it ourselves
         if (Files.exists(this.proguardOut)) {
@@ -252,7 +315,7 @@ public class ProguardTask extends BaritoneGradleTask {
                 while ((line = reader.readLine()) != null) {
                     System.out.println(line);
                 }
-            } catch (final Exception e) {
+            } catch (Exception e) {
                 e.printStackTrace();
             }
         }).start();

buildSrc/src/main/java/baritone/gradle/util/MappingType.java

@@ -0,0 +1,29 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.gradle.util;
+
+/**
+ * All credits go to AsmLibGradle and its contributors.
+ *
+ * @see <a href="https://github.com/pozzed/AsmLibGradle/blob/8f917dbc3939eab7a3d9daf54d9d285fdf34f4b2/src/main/java/net/futureclient/asmlib/forgegradle/MappingType.java">Original Source</a>
+ */
+public enum MappingType {
+    SEARGE,
+    NOTCH,
+    CUSTOM // forgegradle
+}

buildSrc/src/main/java/baritone/gradle/util/ReobfWrapper.java

@@ -0,0 +1,63 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.gradle.util;
+
+import java.lang.reflect.Field;
+import java.util.Objects;
+
+/**
+ * All credits go to AsmLibGradle and its contributors.
+ *
+ * @see <a href="https://github.com/pozzed/AsmLibGradle/blob/8f917dbc3939eab7a3d9daf54d9d285fdf34f4b2/src/main/java/net/futureclient/asmlib/forgegradle/ReobfWrapper.java">Original Source</a>
+ */
+public class ReobfWrapper {
+
+    private final Object instance;
+    private final Class<?> type;
+
+    public ReobfWrapper(Object instance) {
+        this.instance = instance;
+        Objects.requireNonNull(instance);
+        this.type = instance.getClass();
+    }
+
+    public String getName() {
+        try {
+            Field nameField = type.getDeclaredField("name");
+            nameField.setAccessible(true);
+            return (String) nameField.get(this.instance);
+        } catch (ReflectiveOperationException ex) {
+            throw new IllegalStateException(ex);
+        }
+    }
+
+    public MappingType getMappingType() {
+        try {
+            Field enumField = type.getDeclaredField("mappingType");
+            enumField.setAccessible(true);
+            Enum<?> aEnum = (Enum<?>) enumField.get(this.instance);
+            MappingType mappingType = MappingType.values()[aEnum.ordinal()];
+            if (!aEnum.name().equals(mappingType.name())) {
+                throw new IllegalStateException("ForgeGradle ReobfMappingType is not equivalent to MappingType (version error?)");
+            }
+            return mappingType;
+        } catch (ReflectiveOperationException ex) {
+            throw new IllegalStateException(ex);
+        }
+    }
+}

scripts/proguard.pro

@@ -31,7 +31,8 @@
 
 # copy all necessary libraries into tempLibraries to build
 
--libraryjars 'tempLibraries/minecraft-1.12.2.jar'
+# The correct jar will be copied from the forgegradle cache based on the mapping type being compiled with
+-libraryjars 'tempLibraries/minecraft.jar'
 
 -libraryjars 'tempLibraries/SimpleTweaker-1.2.jar'
 

src/api/java/baritone/api/IBaritone.java

@@ -18,7 +18,6 @@
 package baritone.api;
 
 import baritone.api.behavior.ILookBehavior;
-import baritone.api.behavior.IMemoryBehavior;
 import baritone.api.behavior.IPathingBehavior;
 import baritone.api.cache.IWorldProvider;
 import baritone.api.event.listener.IEventBus;
@@ -47,12 +46,6 @@ public interface IBaritone {
      */
     ILookBehavior getLookBehavior();
 
-    /**
-     * @return The {@link IMemoryBehavior} instance
-     * @see IMemoryBehavior
-     */
-    IMemoryBehavior getMemoryBehavior();
-
     /**
      * @return The {@link IMineProcess} instance
      * @see IMineProcess

src/api/java/baritone/api/Settings.java

@@ -50,6 +50,11 @@ public class Settings {
      */
     public Setting<Boolean> allowPlace = new Setting<>(true);
 
+    /**
+     * Allow Baritone to move items in your inventory to your hotbar
+     */
+    public Setting<Boolean> allowInventory = new Setting<>(false);
+
     /**
      * It doesn't actually take twenty ticks to place a block, this cost is so high
      * because we want to generally conserve blocks which might be limited
@@ -89,6 +94,13 @@ public class Settings {
      */
     public Setting<Boolean> assumeSafeWalk = new Setting<>(false);
 
+    /**
+     * If true, parkour is allowed to make jumps when standing on blocks at the maximum height, so player feet is y=256
+     * <p>
+     * Defaults to false because this fails on NCP
+     */
+    public Setting<Boolean> allowJumpAt256 = new Setting<>(false);
+
     /**
      * Blocks that Baritone is allowed to place (as throwaway, for sneak bridging, pillaring, etc.)
      */
@@ -141,8 +153,10 @@ public class Settings {
      * metric gets better and better with each block, instead of slightly worse.
      * <p>
      * Finding the optimal path is worth it, so it's the default.
+     * <p>
+     * This value is an expression instead of a literal so that it's exactly equal to SPRINT_ONE_BLOCK_COST defined in ActionCosts.java
      */
-    public Setting<Double> costHeuristic = new Setting<>(3.5D);
+    public Setting<Double> costHeuristic = new Setting<>(20 / 5.612);
 
     // a bunch of obscure internal A* settings that you probably don't want to change
     /**
@@ -158,6 +172,42 @@ public class Settings {
      */
     public Setting<Double> backtrackCostFavoringCoefficient = new Setting<>(0.5);
 
+    /**
+     * Toggle the following 4 settings
+     * <p>
+     * They have a noticable performance impact, so they default off
+     */
+    public Setting<Boolean> avoidance = new Setting<>(false);
+    /**
+     * Set to 1.0 to effectively disable this feature
+     * <p>
+     * Set below 1.0 to go out of your way to walk near mob spawners
+     */
+    public Setting<Double> mobSpawnerAvoidanceCoefficient = new Setting<>(2.0);
+
+    public Setting<Integer> mobSpawnerAvoidanceRadius = new Setting<>(16);
+
+    /**
+     * Set to 1.0 to effectively disable this feature
+     * <p>
+     * Set below 1.0 to go out of your way to walk near mobs
+     */
+    public Setting<Double> mobAvoidanceCoefficient = new Setting<>(1.5);
+
+    public Setting<Integer> mobAvoidanceRadius = new Setting<>(8);
+
+    /**
+     * When running a goto towards a container block (chest, ender chest, furnace, etc),
+     * right click and open it once you arrive.
+     */
+    public Setting<Boolean> rightClickContainerOnArrival = new Setting<>(true);
+
+    /**
+     * When running a goto towards a nether portal block, walk all the way into the portal
+     * instead of stopping one block before.
+     */
+    public Setting<Boolean> enterPortal = new Setting<>(true);
+
     /**
      * Don't repropagate cost improvements below 0.01 ticks. They're all just floating point inaccuracies,
      * and there's no point.
@@ -328,6 +378,12 @@ public class Settings {
      */
     public Setting<Boolean> renderGoalIgnoreDepth = new Setting<>(true);
 
+    /**
+     * Renders X/Z type Goals with the vanilla beacon beam effect. Combining this with
+     * {@link #renderGoalIgnoreDepth} will cause strange render clipping.
+     */
+    public Setting<Boolean> renderGoalXZBeacon = new Setting<>(false);
+
     /**
      * Ignore depth when rendering the selection boxes (to break, to place, to walk into)
      */
@@ -553,6 +609,12 @@ public class Settings {
      */
     public final List<Setting<?>> allSettings;
 
+    public void reset() {
+        for (Setting setting : allSettings) {
+            setting.value = setting.defaultValue;
+        }
+    }
+
     public class Setting<T> {
         public T value;
         public final T defaultValue;

src/api/java/baritone/api/cache/ICachedRegion.java

@@ -37,12 +37,12 @@ public interface ICachedRegion extends IBlockTypeAccess {
     boolean isCached(int blockX, int blockZ);
 
     /**
-     * The X coordinate of this region
+     * @return The X coordinate of this region
      */
     int getX();
 
     /**
-     * The Z coordinate of this region
+     * @return The Z coordinate of this region
      */
     int getZ();
 }

src/api/java/baritone/api/cache/IContainerMemory.java

@@ -15,9 +15,8 @@
  * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-package baritone.api.behavior;
+package baritone.api.cache;
 
-import baritone.api.behavior.memory.IRememberedInventory;
 import net.minecraft.util.math.BlockPos;
 
 import java.util.Map;
@@ -26,7 +25,7 @@ import java.util.Map;
  * @author Brady
  * @since 9/23/2018
  */
-public interface IMemoryBehavior extends IBehavior {
+public interface IContainerMemory {
 
     /**
      * Gets a remembered inventory by its block position.

src/api/java/baritone/api/cache/IRememberedInventory.java

@@ -15,7 +15,7 @@
  * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-package baritone.api.behavior.memory;
+package baritone.api.cache;
 
 import net.minecraft.item.ItemStack;
 

src/api/java/baritone/api/cache/IWorldData.java

@@ -27,13 +27,19 @@ public interface IWorldData {
      * Returns the cached world for this world. A cached world is a simplified format
      * of a regular world, intended for use on multiplayer servers where chunks are not
      * traditionally stored to disk, allowing for long distance pathing with minimal disk usage.
+     *
+     * @return The cached world for this world
      */
     ICachedWorld getCachedWorld();
 
     /**
-     * Returns the waypoint collection for this world.
-     *
      * @return The waypoint collection for this world
      */
     IWaypointCollection getWaypoints();
+
+    /**
+     * @return The {@link IContainerMemory} instance
+     * @see IContainerMemory
+     */
+    IContainerMemory getContainerMemory();
 }

src/api/java/baritone/api/cache/IWorldScanner.java

@@ -20,6 +20,7 @@ package baritone.api.cache;
 import baritone.api.utils.IPlayerContext;
 import net.minecraft.block.Block;
 import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.ChunkPos;
 
 import java.util.List;
 
@@ -42,4 +43,18 @@ public interface IWorldScanner {
      * @return The matching block positions
      */
     List<BlockPos> scanChunkRadius(IPlayerContext ctx, List<Block> blocks, int max, int yLevelThreshold, int maxSearchRadius);
+
+    /**
+     * Scans a single chunk for the specified blocks.
+     *
+     * @param ctx             The {@link IPlayerContext} containing player and world info that the
+     *                        scan is based upon
+     * @param blocks          The blocks to scan for
+     * @param pos             The position of the target chunk
+     * @param max             The maximum number of blocks to scan before cutoff
+     * @param yLevelThreshold If a block is found within this Y level, the current result will be
+     *                        returned, if the value is negative, then this condition doesn't apply.
+     * @return The matching block positions
+     */
+    List<BlockPos> scanChunk(IPlayerContext ctx, List<Block> blocks, ChunkPos pos, int max, int yLevelThreshold);
 }

src/api/java/baritone/api/event/events/BlockInteractEvent.java

@@ -20,7 +20,7 @@ package baritone.api.event.events;
 import net.minecraft.util.math.BlockPos;
 
 /**
- * Called when the local player interacts with a block, can be either {@link Type#BREAK} or {@link Type#USE}.
+ * Called when the local player interacts with a block, can be either {@link Type#START_BREAK} or {@link Type#USE}.
  *
  * @author Brady
  * @since 8/22/2018
@@ -59,9 +59,9 @@ public final class BlockInteractEvent {
     public enum Type {
 
         /**
-         * We're breaking the target block.
+         * We're starting to break the target block.
          */
-        BREAK,
+        START_BREAK,
 
         /**
          * We're right clicking on the target block. Either placing or interacting with.

src/api/java/baritone/api/event/events/ChunkEvent.java

@@ -31,7 +31,9 @@ public final class ChunkEvent {
     private final EventState state;
 
     /**
-     * The type of chunk event that occurred;
+     * The type of chunk event that occurred
+     *
+     * @see Type
      */
     private final Type type;
 

src/api/java/baritone/api/event/listener/IGameEventListener.java

@@ -23,13 +23,9 @@ import net.minecraft.client.Minecraft;
 import net.minecraft.client.entity.EntityPlayerSP;
 import net.minecraft.client.gui.GuiGameOver;
 import net.minecraft.client.multiplayer.WorldClient;
-import net.minecraft.client.renderer.EntityRenderer;
 import net.minecraft.client.settings.GameSettings;
 import net.minecraft.entity.Entity;
-import net.minecraft.entity.EntityLivingBase;
-import net.minecraft.network.NetworkManager;
 import net.minecraft.network.Packet;
-import net.minecraft.util.text.ITextComponent;
 
 /**
  * @author Brady
@@ -40,6 +36,7 @@ public interface IGameEventListener {
     /**
      * Run once per game tick before screen input is handled.
      *
+     * @param event The event
      * @see Minecraft#runTick()
      */
     void onTick(TickEvent event);
@@ -47,20 +44,20 @@ public interface IGameEventListener {
     /**
      * Run once per game tick from before and after the player rotation is sent to the server.
      *
+     * @param event The event
      * @see EntityPlayerSP#onUpdate()
      */
     void onPlayerUpdate(PlayerUpdateEvent event);
 
     /**
      * Run once per game tick from before keybinds are processed.
-     *
-     * @see Minecraft#processKeyBinds()
      */
     void onProcessKeyBinds();
 
     /**
      * Runs whenever the client player sends a message to the server.
      *
+     * @param event The event
      * @see EntityPlayerSP#sendChatMessage(String)
      */
     void onSendChatMessage(ChatEvent event);
@@ -68,6 +65,7 @@ public interface IGameEventListener {
     /**
      * Runs before and after whenever a chunk is either loaded, unloaded, or populated.
      *
+     * @param event The event
      * @see WorldClient#doPreChunk(int, int, boolean)
      */
     void onChunkEvent(ChunkEvent event);
@@ -77,13 +75,14 @@ public interface IGameEventListener {
      * <p>
      * <b>Note:</b> {@link GameSettings#anaglyph} has been removed in Minecraft 1.13
      *
-     * @see EntityRenderer#renderWorldPass(int, float, long)
+     * @param event The event
      */
     void onRenderPass(RenderEvent event);
 
     /**
      * Runs before and after whenever a new world is loaded
      *
+     * @param event The event
      * @see Minecraft#loadWorld(WorldClient, String)
      */
     void onWorldEvent(WorldEvent event);
@@ -91,7 +90,7 @@ public interface IGameEventListener {
     /**
      * Runs before a outbound packet is sent
      *
-     * @see NetworkManager#dispatchPacket(Packet, GenericFutureListener[])
+     * @param event The event
      * @see Packet
      * @see GenericFutureListener
      */
@@ -100,7 +99,7 @@ public interface IGameEventListener {
     /**
      * Runs before an inbound packet is processed
      *
-     * @see NetworkManager#dispatchPacket(Packet, GenericFutureListener[])
+     * @param event The event
      * @see Packet
      * @see GenericFutureListener
      */
@@ -110,31 +109,29 @@ public interface IGameEventListener {
      * Run once per game tick from before and after the player's moveRelative method is called
      * and before and after the player jumps.
      *
+     * @param event The event
      * @see Entity#moveRelative(float, float, float, float)
-     * @see EntityLivingBase#jump()
      */
     void onPlayerRotationMove(RotationMoveEvent event);
 
     /**
      * Called when the local player interacts with a block, whether it is breaking or opening/placing.
      *
-     * @see Minecraft#clickMouse()
-     * @see Minecraft#rightClickMouse()
+     * @param event The event
      */
     void onBlockInteract(BlockInteractEvent event);
 
     /**
      * Called when the local player dies, as indicated by the creation of the {@link GuiGameOver} screen.
      *
-     * @see GuiGameOver(ITextComponent)
-     * @see ITextComponent
+     * @see GuiGameOver
      */
     void onPlayerDeath();
 
     /**
      * When the pathfinder's state changes
      *
-     * @param event
+     * @param event The event
      */
     void onPathEvent(PathEvent event);
 }

src/api/java/baritone/api/pathing/calc/IPath.java

@@ -21,7 +21,6 @@ import baritone.api.Settings;
 import baritone.api.pathing.goals.Goal;
 import baritone.api.pathing.movement.IMovement;
 import baritone.api.utils.BetterBlockPos;
-import net.minecraft.world.World;
 
 import java.util.HashSet;
 import java.util.List;
@@ -52,6 +51,8 @@ public interface IPath {
     /**
      * This path is actually going to be executed in the world. Do whatever additional processing is required.
      * (as opposed to Path objects that are just constructed every frame for rendering)
+     *
+     * @return The result of path post processing
      */
     default IPath postProcess() {
         throw new UnsupportedOperationException();
@@ -109,8 +110,9 @@ public interface IPath {
     default double ticksRemainingFrom(int pathPosition) {
         double sum = 0;
         //this is fast because we aren't requesting recalculation, it's just cached
-        for (int i = pathPosition; i < movements().size(); i++) {
-            sum += movements().get(i).getCost();
+        List<IMovement> movements = movements();
+        for (int i = pathPosition; i < movements.size(); i++) {
+            sum += movements.get(i).getCost();
         }
         return sum;
     }
@@ -118,10 +120,13 @@ public interface IPath {
     /**
      * Cuts off this path at the loaded chunk border, and returns the resulting path. Default
      * implementation just returns this path, without the intended functionality.
+     * <p>
+     * The argument is supposed to be a BlockStateInterface LOL LOL LOL LOL LOL
      *
+     * @param bsi The block state lookup, highly cursed
      * @return The result of this cut-off operation
      */
-    default IPath cutoffAtLoadedChunks(World world) {
+    default IPath cutoffAtLoadedChunks(Object bsi) {
         throw new UnsupportedOperationException();
     }
 
@@ -129,6 +134,7 @@ public interface IPath {
      * Cuts off this path using the min length and cutoff factor settings, and returns the resulting path.
      * Default implementation just returns this path, without the intended functionality.
      *
+     * @param destination The end goal of this path
      * @return The result of this cut-off operation
      * @see Settings#pathCutoffMinimumLength
      * @see Settings#pathCutoffFactor

src/api/java/baritone/api/pathing/calc/IPathFinder.java

@@ -34,6 +34,9 @@ public interface IPathFinder {
     /**
      * Calculate the path in full. Will take several seconds.
      *
+     * @param primaryTimeout If a path is found, the path finder will stop after this amount of time
+     * @param failureTimeout If a path isn't found, the path finder will continue for this amount of time
+     *
      * @return The final path
      */
     PathCalculationResult calculate(long primaryTimeout, long failureTimeout);

src/api/java/baritone/api/pathing/goals/Goal.java

@@ -30,6 +30,10 @@ public interface Goal {
      * Returns whether or not the specified position
      * meets the requirement for this goal based.
      *
+     * @param x The goal X position
+     * @param y The goal Y position
+     * @param z The goal Z position
+     *
      * @return Whether or not it satisfies this goal
      */
     boolean isInGoal(int x, int y, int z);
@@ -37,6 +41,10 @@ public interface Goal {
     /**
      * Estimate the number of ticks it will take to get to the goal
      *
+     * @param x The goal X position
+     * @param y The goal Y position
+     * @param z The goal Z position
+     *
      * @return The estimate number of ticks to satisfy the goal
      */
     double heuristic(int x, int y, int z);

src/api/java/baritone/api/pathing/movement/IMovement.java

@@ -20,8 +20,6 @@ package baritone.api.pathing.movement;
 import baritone.api.utils.BetterBlockPos;
 import net.minecraft.util.math.BlockPos;
 
-import java.util.List;
-
 /**
  * @author Brady
  * @since 10/8/2018
@@ -58,10 +56,4 @@ public interface IMovement {
     BetterBlockPos getDest();
 
     BlockPos getDirection();
-
-    List<BlockPos> toBreak();
-
-    List<BlockPos> toPlace();
-
-    List<BlockPos> toWalkInto();
 }

src/api/java/baritone/api/utils/RayTraceUtils.java

@@ -34,7 +34,9 @@ public final class RayTraceUtils {
      * any entity collisions can be ignored, because this method will not recognize if an
      * entity is in the way or not. The local player's block reach distance will be used.
      *
-     * @param rotation The rotation to raytrace towards
+     * @param entity             The entity representing the raytrace source
+     * @param rotation           The rotation to raytrace towards
+     * @param blockReachDistance The block reach distance of the entity
      * @return The calculated raytrace result
      */
     public static RayTraceResult rayTraceTowards(Entity entity, Rotation rotation, double blockReachDistance) {

src/api/java/baritone/api/utils/Rotation.java

@@ -110,6 +110,17 @@ public class Rotation {
         );
     }
 
+    /**
+     * Is really close to
+     *
+     * @param other another rotation
+     * @return are they really close
+     */
+    public boolean isReallyCloseTo(Rotation other) {
+        float yawDiff = Math.abs(this.yaw - other.yaw); // you cant fool me
+        return (yawDiff < 0.01 || yawDiff > 359.9) && Math.abs(this.pitch - other.pitch) < 0.01;
+    }
+
     /**
      * Clamps the specified pitch value between -90 and 90.
      *
@@ -131,7 +142,7 @@ public class Rotation {
         if (newYaw < -180F) {
             newYaw += 360F;
         }
-        if (newYaw >= 180F) {
+        if (newYaw > 180F) {
             newYaw -= 360F;
         }
         return newYaw;

src/api/java/baritone/api/utils/RotationUtils.java

@@ -134,8 +134,9 @@ public final class RotationUtils {
      * side that is reachable. The return type will be {@link Optional#empty()} if the entity is
      * unable to reach any of the sides of the block.
      *
-     * @param entity The viewing entity
-     * @param pos    The target block position
+     * @param entity             The viewing entity
+     * @param pos                The target block position
+     * @param blockReachDistance The block reach distance of the entity
      * @return The optional rotation
      */
     public static Optional<Rotation> reachable(EntityPlayerSP entity, BlockPos pos, double blockReachDistance) {
@@ -178,9 +179,10 @@ public final class RotationUtils {
      * the given offsetted position. The return type will be {@link Optional#empty()} if
      * the entity is unable to reach the block with the offset applied.
      *
-     * @param entity    The viewing entity
-     * @param pos       The target block position
-     * @param offsetPos The position of the block with the offset applied.
+     * @param entity             The viewing entity
+     * @param pos                The target block position
+     * @param offsetPos          The position of the block with the offset applied.
+     * @param blockReachDistance The block reach distance of the entity
      * @return The optional rotation
      */
     public static Optional<Rotation> reachableOffset(Entity entity, BlockPos pos, Vec3d offsetPos, double blockReachDistance) {
@@ -202,8 +204,9 @@ public final class RotationUtils {
      * Determines if the specified entity is able to reach the specified block where it is
      * looking at the direct center of it's hitbox.
      *
-     * @param entity The viewing entity
-     * @param pos    The target block position
+     * @param entity             The viewing entity
+     * @param pos                The target block position
+     * @param blockReachDistance The block reach distance of the entity
      * @return The optional rotation
      */
     public static Optional<Rotation> reachableCenter(Entity entity, BlockPos pos, double blockReachDistance) {

src/api/java/baritone/api/utils/VecUtils.java

@@ -36,7 +36,8 @@ public final class VecUtils {
     /**
      * Calculates the center of the block at the specified position's bounding box
      *
-     * @param pos The block position
+     * @param world The world that the block is in, used to provide the bounding box
+     * @param pos   The block position
      * @return The center of the block's bounding box
      * @see #getBlockPosCenter(BlockPos)
      */
@@ -81,10 +82,9 @@ public final class VecUtils {
      * @see #getBlockPosCenter(BlockPos)
      */
     public static double distanceToCenter(BlockPos pos, double x, double y, double z) {
-        Vec3d center = getBlockPosCenter(pos);
-        double xdiff = x - center.x;
-        double ydiff = y - center.y;
-        double zdiff = z - center.z;
+        double xdiff = pos.getX() + 0.5 - x;
+        double ydiff = pos.getY() + 0.5 - y;
+        double zdiff = pos.getZ() + 0.5 - z;
         return Math.sqrt(xdiff * xdiff + ydiff * ydiff + zdiff * zdiff);
     }
 

src/launch/java/baritone/launch/mixins/MixinMinecraft.java

@@ -25,15 +25,18 @@ import baritone.api.event.events.TickEvent;
 import baritone.api.event.events.WorldEvent;
 import baritone.api.event.events.type.EventState;
 import baritone.utils.BaritoneAutoTest;
+import baritone.utils.resource.BaritoneResourcePack;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.entity.EntityPlayerSP;
 import net.minecraft.client.gui.GuiScreen;
 import net.minecraft.client.multiplayer.WorldClient;
+import net.minecraft.client.resources.IResourcePack;
 import net.minecraft.item.ItemStack;
 import net.minecraft.util.EnumActionResult;
 import net.minecraft.util.EnumHand;
 import net.minecraft.util.math.BlockPos;
 import org.spongepowered.asm.lib.Opcodes;
+import org.spongepowered.asm.mixin.Final;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.Shadow;
 import org.spongepowered.asm.mixin.injection.At;
@@ -42,6 +45,8 @@ import org.spongepowered.asm.mixin.injection.Redirect;
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
 import org.spongepowered.asm.mixin.injection.callback.LocalCapture;
 
+import java.util.List;
+
 /**
  * @author Brady
  * @since 7/31/2018
@@ -49,10 +54,9 @@ import org.spongepowered.asm.mixin.injection.callback.LocalCapture;
 @Mixin(Minecraft.class)
 public class MixinMinecraft {
 
-    @Shadow
-    public EntityPlayerSP player;
-    @Shadow
-    public WorldClient world;
+    @Shadow public EntityPlayerSP player;
+    @Shadow public WorldClient world;
+    @Shadow @Final private List<IResourcePack> defaultResourcePacks;
 
     @Inject(
             method = "init",
@@ -71,6 +75,7 @@ public class MixinMinecraft {
     )
     private void preInit(CallbackInfo ci) {
         BaritoneAutoTest.INSTANCE.onPreInit();
+        this.defaultResourcePacks.add(new BaritoneResourcePack());
     }
 
     @Inject(
@@ -164,7 +169,7 @@ public class MixinMinecraft {
     )
     private void onBlockBreak(CallbackInfo ci, BlockPos pos) {
         // clickMouse is only for the main player
-        BaritoneAPI.getProvider().getPrimaryBaritone().getGameEventHandler().onBlockInteract(new BlockInteractEvent(pos, BlockInteractEvent.Type.BREAK));
+        BaritoneAPI.getProvider().getPrimaryBaritone().getGameEventHandler().onBlockInteract(new BlockInteractEvent(pos, BlockInteractEvent.Type.START_BREAK));
     }
 
     @Inject(

src/main/java/baritone/Baritone.java

@@ -22,10 +22,7 @@ import baritone.api.IBaritone;
 import baritone.api.Settings;
 import baritone.api.event.listener.IEventBus;
 import baritone.api.utils.IPlayerContext;
-import baritone.behavior.Behavior;
-import baritone.behavior.LookBehavior;
-import baritone.behavior.MemoryBehavior;
-import baritone.behavior.PathingBehavior;
+import baritone.behavior.*;
 import baritone.cache.WorldProvider;
 import baritone.event.GameEventHandler;
 import baritone.process.CustomGoalProcess;
@@ -38,6 +35,9 @@ import baritone.utils.InputOverrideHandler;
 import baritone.utils.PathingControlManager;
 import baritone.utils.player.PrimaryPlayerContext;
 import net.minecraft.client.Minecraft;
+import net.minecraft.client.audio.PositionedSoundRecord;
+import net.minecraft.util.ResourceLocation;
+import net.minecraft.util.SoundEvent;
 
 import java.io.File;
 import java.io.IOException;
@@ -96,11 +96,18 @@ public class Baritone implements IBaritone {
         this.gameEventHandler = new GameEventHandler(this);
     }
 
+    public void fitmc() {
+        SoundEvent event = new SoundEvent(new ResourceLocation("baritone", "fitmc_intro"));
+        Minecraft.getMinecraft().getSoundHandler().playSound(PositionedSoundRecord.getMasterRecord(event, 0.8F + (float) Math.random() * 0.4F));
+    }
+
     public synchronized void init() {
         if (initialized) {
             return;
         }
 
+        fitmc();
+
         // Define this before behaviors try and get it, or else it will be null and the builds will fail!
         this.playerContext = PrimaryPlayerContext.INSTANCE;
 
@@ -110,6 +117,7 @@ public class Baritone implements IBaritone {
             pathingBehavior = new PathingBehavior(this);
             lookBehavior = new LookBehavior(this);
             memoryBehavior = new MemoryBehavior(this);
+            new InventoryBehavior(this);
             inputOverrideHandler = new InputOverrideHandler(this);
             new ExampleBaritoneControl(this);
         }
@@ -164,6 +172,10 @@ public class Baritone implements IBaritone {
         return this.playerContext;
     }
 
+    public MemoryBehavior getMemoryBehavior() {
+        return this.memoryBehavior;
+    }
+
     @Override
     public FollowProcess getFollowProcess() {
         return this.followProcess;
@@ -174,11 +186,6 @@ public class Baritone implements IBaritone {
         return this.lookBehavior;
     }
 
-    @Override
-    public MemoryBehavior getMemoryBehavior() {
-        return this.memoryBehavior;
-    }
-
     @Override
     public MineProcess getMineProcess() {
         return this.mineProcess;

src/main/java/baritone/behavior/InventoryBehavior.java

@@ -0,0 +1,93 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.behavior;
+
+import baritone.Baritone;
+import baritone.api.event.events.TickEvent;
+import baritone.utils.ToolSet;
+import net.minecraft.block.Block;
+import net.minecraft.init.Blocks;
+import net.minecraft.inventory.ClickType;
+import net.minecraft.item.ItemPickaxe;
+import net.minecraft.item.ItemStack;
+import net.minecraft.item.ItemTool;
+import net.minecraft.util.NonNullList;
+
+public class InventoryBehavior extends Behavior {
+    public InventoryBehavior(Baritone baritone) {
+        super(baritone);
+    }
+
+    @Override
+    public void onTick(TickEvent event) {
+        if (!Baritone.settings().allowInventory.get()) {
+            return;
+        }
+        if (event.getType() == TickEvent.Type.OUT) {
+            return;
+        }
+        if (ctx.player().openContainer != ctx.player().inventoryContainer) {
+            // we have a crafting table or a chest or something open
+            return;
+        }
+        if (firstValidThrowaway() >= 9) { // aka there are none on the hotbar, but there are some in main inventory
+            swapWithHotBar(firstValidThrowaway(), 8);
+        }
+        int pick = bestToolAgainst(Blocks.STONE, ItemPickaxe.class);
+        if (pick >= 9) {
+            swapWithHotBar(pick, 0);
+        }
+    }
+
+    private void swapWithHotBar(int inInventory, int inHotbar) {
+        if (inInventory < 9) {
+            inInventory += 36;
+        }
+        ctx.playerController().windowClick(ctx.player().inventoryContainer.windowId, inInventory, inHotbar, ClickType.SWAP, ctx.player());
+    }
+
+    private int firstValidThrowaway() { // TODO offhand idk
+        NonNullList<ItemStack> invy = ctx.player().inventory.mainInventory;
+        for (int i = 0; i < invy.size(); i++) {
+            if (Baritone.settings().acceptableThrowawayItems.get().contains(invy.get(i).getItem())) {
+                return i;
+            }
+        }
+        return -1;
+    }
+
+    private int bestToolAgainst(Block against, Class<? extends ItemTool> klass) {
+        NonNullList<ItemStack> invy = ctx.player().inventory.mainInventory;
+        int bestInd = -1;
+        double bestSpeed = -1;
+        for (int i = 0; i < invy.size(); i++) {
+            ItemStack stack = invy.get(i);
+            if (stack.isEmpty()) {
+                continue;
+            }
+            if (klass.isInstance(stack.getItem())) {
+                double speed = ToolSet.calculateStrVsBlock(stack, against.getDefaultState()); // takes into account enchants
+                if (speed > bestSpeed) {
+                    bestSpeed = speed;
+                    bestInd = i;
+                }
+            }
+        }
+        return bestInd;
+    }
+}

src/main/java/baritone/behavior/MemoryBehavior.java

@@ -18,16 +18,17 @@
 package baritone.behavior;
 
 import baritone.Baritone;
-import baritone.api.behavior.IMemoryBehavior;
-import baritone.api.behavior.memory.IRememberedInventory;
-import baritone.api.cache.IWorldData;
 import baritone.api.event.events.BlockInteractEvent;
 import baritone.api.event.events.PacketEvent;
 import baritone.api.event.events.PlayerUpdateEvent;
 import baritone.api.event.events.type.EventState;
+import baritone.cache.ContainerMemory;
 import baritone.cache.Waypoint;
+import baritone.pathing.movement.CalculationContext;
 import baritone.utils.BlockStateInterface;
+import net.minecraft.block.Block;
 import net.minecraft.block.BlockBed;
+import net.minecraft.init.Blocks;
 import net.minecraft.item.ItemStack;
 import net.minecraft.network.Packet;
 import net.minecraft.network.play.client.CPacketCloseWindow;
@@ -36,17 +37,24 @@ import net.minecraft.network.play.server.SPacketCloseWindow;
 import net.minecraft.network.play.server.SPacketOpenWindow;
 import net.minecraft.tileentity.TileEntity;
 import net.minecraft.tileentity.TileEntityLockable;
+import net.minecraft.util.EnumFacing;
 import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.text.TextComponentTranslation;
 
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
 import java.util.*;
 
 /**
  * @author Brady
  * @since 8/6/2018
  */
-public final class MemoryBehavior extends Behavior implements IMemoryBehavior {
+public final class MemoryBehavior extends Behavior {
 
-    private final Map<IWorldData, WorldDataContainer> worldDataContainers = new HashMap<>();
+    private final List<FutureInventory> futureInventories = new ArrayList<>(); // this is per-bot
+
+    private Integer enderChestWindowId; // nae nae
 
     public MemoryBehavior(Baritone baritone) {
         super(baritone);
@@ -68,19 +76,30 @@ public final class MemoryBehavior extends Behavior implements IMemoryBehavior {
                 CPacketPlayerTryUseItemOnBlock packet = event.cast();
 
                 TileEntity tileEntity = ctx.world().getTileEntity(packet.getPos());
+                // if tileEntity is an ender chest, we don't need to do anything. ender chests are treated the same regardless of what coordinate right clicked
 
                 // Ensure the TileEntity is a container of some sort
                 if (tileEntity instanceof TileEntityLockable) {
 
                     TileEntityLockable lockable = (TileEntityLockable) tileEntity;
                     int size = lockable.getSizeInventory();
+                    BlockPos position = tileEntity.getPos();
+                    BlockPos adj = neighboringConnectedBlock(position);
+                    System.out.println(position + " " + adj);
+                    if (adj != null) {
+                        size *= 2; // double chest or double trapped chest
+                        if (adj.getX() < position.getX() || adj.getZ() < position.getZ()) {
+                            position = adj; // standardize on the lower coordinate, regardless of which side of the large chest we right clicked
+                        }
+                    }
 
-                    this.getCurrentContainer().futureInventories.add(new FutureInventory(System.nanoTime() / 1000000L, size, lockable.getGuiID(), tileEntity.getPos()));
+                    this.futureInventories.add(new FutureInventory(System.nanoTime() / 1000000L, size, lockable.getGuiID(), position));
                 }
             }
 
             if (p instanceof CPacketCloseWindow) {
                 updateInventory();
+                getCurrent().save();
             }
         }
     }
@@ -92,27 +111,32 @@ public final class MemoryBehavior extends Behavior implements IMemoryBehavior {
         if (event.getState() == EventState.PRE) {
             if (p instanceof SPacketOpenWindow) {
                 SPacketOpenWindow packet = event.cast();
-
-                WorldDataContainer container = this.getCurrentContainer();
-
                 // Remove any entries that were created over a second ago, this should make up for INSANE latency
-                container.futureInventories.removeIf(i -> System.nanoTime() / 1000000L - i.time > 1000);
+                futureInventories.removeIf(i -> System.nanoTime() / 1000000L - i.time > 1000);
 
-                container.futureInventories.stream()
+                System.out.println("Received packet " + packet.getGuiId() + " " + packet.getEntityId() + " " + packet.getSlotCount() + " " + packet.getWindowId());
+                System.out.println(packet.getWindowTitle());
+                if (packet.getWindowTitle() instanceof TextComponentTranslation) {
+                    // title is not customized (i.e. this isn't just a renamed shulker)
+                    if (((TextComponentTranslation) packet.getWindowTitle()).getKey().equals("container.enderchest")) {
+                        enderChestWindowId = packet.getWindowId();
+                        return;
+                    }
+                }
+                futureInventories.stream()
                         .filter(i -> i.type.equals(packet.getGuiId()) && i.slots == packet.getSlotCount())
                         .findFirst().ifPresent(matched -> {
                     // Remove the future inventory
-                    container.futureInventories.remove(matched);
+                    futureInventories.remove(matched);
 
                     // Setup the remembered inventory
-                    RememberedInventory inventory = container.rememberedInventories.computeIfAbsent(matched.pos, pos -> new RememberedInventory());
-                    inventory.windowId = packet.getWindowId();
-                    inventory.size = packet.getSlotCount();
+                    getCurrentContainer().setup(matched.pos, packet.getWindowId(), packet.getSlotCount());
                 });
             }
 
             if (p instanceof SPacketCloseWindow) {
                 updateInventory();
+                getCurrent().save();
             }
         }
     }
@@ -129,43 +153,42 @@ public final class MemoryBehavior extends Behavior implements IMemoryBehavior {
         baritone.getWorldProvider().getCurrentWorld().getWaypoints().addWaypoint(new Waypoint("death", Waypoint.Tag.DEATH, ctx.playerFeet()));
     }
 
-    private Optional<RememberedInventory> getInventoryFromWindow(int windowId) {
-        return this.getCurrentContainer().rememberedInventories.values().stream().filter(i -> i.windowId == windowId).findFirst();
-    }
 
     private void updateInventory() {
-        getInventoryFromWindow(ctx.player().openContainer.windowId).ifPresent(inventory -> {
-            inventory.items.clear();
-            inventory.items.addAll(ctx.player().openContainer.getInventory().subList(0, inventory.size));
-        });
+        int windowId = ctx.player().openContainer.windowId;
+        if (enderChestWindowId != null) {
+            if (windowId == enderChestWindowId) {
+                getCurrent().contents = ctx.player().openContainer.getInventory().subList(0, 27);
+            } else {
+                getCurrent().save();
+                enderChestWindowId = null;
+            }
+        }
+        if (getCurrentContainer() != null) {
+            getCurrentContainer().getInventoryFromWindow(windowId).ifPresent(inventory -> inventory.updateFromOpenWindow(ctx));
+        }
     }
 
-    private WorldDataContainer getCurrentContainer() {
-        return this.worldDataContainers.computeIfAbsent(baritone.getWorldProvider().getCurrentWorld(), data -> new WorldDataContainer());
+    private ContainerMemory getCurrentContainer() {
+        if (baritone.getWorldProvider().getCurrentWorld() == null) {
+            return null;
+        }
+        return (ContainerMemory) baritone.getWorldProvider().getCurrentWorld().getContainerMemory();
     }
 
-    @Override
-    public final synchronized RememberedInventory getInventoryByPos(BlockPos pos) {
-        return this.getCurrentContainer().rememberedInventories.get(pos);
-    }
-
-    @Override
-    public final synchronized Map<BlockPos, IRememberedInventory> getRememberedInventories() {
-        // make a copy since this map is modified from the packet thread
-        return new HashMap<>(this.getCurrentContainer().rememberedInventories);
-    }
-
-    private static final class WorldDataContainer {
-
-        /**
-         * Possible future inventories that we will be able to remember
-         */
-        private final List<FutureInventory> futureInventories = new ArrayList<>();
-
-        /**
-         * The current remembered inventories
-         */
-        private final Map<BlockPos, RememberedInventory> rememberedInventories = new HashMap<>();
+    private BlockPos neighboringConnectedBlock(BlockPos in) {
+        BlockStateInterface bsi = new CalculationContext(baritone).bsi();
+        Block block = bsi.get0(in).getBlock();
+        if (block != Blocks.TRAPPED_CHEST && block != Blocks.CHEST) {
+            return null; // other things that have contents, but can be placed adjacent without combining
+        }
+        for (int i = 0; i < 4; i++) {
+            BlockPos adj = in.offset(EnumFacing.byHorizontalIndex(i));
+            if (bsi.get0(adj).getBlock() == block) {
+                return adj;
+            }
+        }
+        return null;
     }
 
     /**
@@ -198,43 +221,51 @@ public final class MemoryBehavior extends Behavior implements IMemoryBehavior {
             this.slots = slots;
             this.type = type;
             this.pos = pos;
+            System.out.println("Future inventory created " + time + " " + slots + " " + type + " " + pos);
         }
     }
 
-    /**
-     * An inventory that we are aware of.
-     * <p>
-     * Associated with a {@link BlockPos} in {@link WorldDataContainer#rememberedInventories}.
-     */
-    public static class RememberedInventory implements IRememberedInventory {
+    public Optional<List<ItemStack>> echest() {
+        return Optional.ofNullable(getCurrent().contents).map(Collections::unmodifiableList);
+    }
 
-        /**
-         * The list of items in the inventory
-         */
-        private final List<ItemStack> items;
+    public EnderChestMemory getCurrent() {
+        Path path = baritone.getWorldProvider().getCurrentWorld().directory;
+        return EnderChestMemory.getByServerAndPlayer(path.getParent(), ctx.player().getUniqueID());
+    }
 
-        /**
-         * The last known window ID of the inventory
-         */
-        private int windowId;
+    public static class EnderChestMemory {
+        private static final Map<Path, EnderChestMemory> memory = new HashMap<>();
+        private final Path enderChest;
+        private List<ItemStack> contents;
 
-        /**
-         * The size of the inventory
-         */
-        private int size;
-
-        private RememberedInventory() {
-            this.items = new ArrayList<>();
+        private EnderChestMemory(Path enderChest) {
+            this.enderChest = enderChest;
+            System.out.println("Echest storing in " + enderChest);
+            try {
+                this.contents = ContainerMemory.readItemStacks(Files.readAllBytes(enderChest));
+            } catch (IOException e) {
+                e.printStackTrace();
+                System.out.println("CANNOT read echest =( =(");
+                this.contents = null;
+            }
         }
 
-        @Override
-        public final List<ItemStack> getContents() {
-            return Collections.unmodifiableList(this.items);
+        public synchronized void save() {
+            System.out.println("Saving");
+            if (contents != null) {
+                try {
+                    enderChest.getParent().toFile().mkdir();
+                    Files.write(enderChest, ContainerMemory.writeItemStacks(contents));
+                } catch (IOException e) {
+                    e.printStackTrace();
+                    System.out.println("CANNOT save echest =( =(");
+                }
+            }
         }
 
-        @Override
-        public final int getSize() {
-            return this.size;
+        private static synchronized EnderChestMemory getByServerAndPlayer(Path serverStorage, UUID player) {
+            return memory.computeIfAbsent(serverStorage.resolve("echests").resolve(player.toString()), EnderChestMemory::new);
         }
     }
 }

src/main/java/baritone/behavior/PathingBehavior.java

@@ -37,12 +37,15 @@ import baritone.pathing.path.CutoffPath;
 import baritone.pathing.path.PathExecutor;
 import baritone.utils.Helper;
 import baritone.utils.PathRenderer;
+import baritone.utils.pathing.Favoring;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.world.chunk.EmptyChunk;
 
-import java.util.*;
+import java.util.ArrayList;
+import java.util.Comparator;
+import java.util.Objects;
+import java.util.Optional;
 import java.util.concurrent.LinkedBlockingQueue;
-import java.util.stream.Collectors;
 
 public final class PathingBehavior extends Behavior implements IPathingBehavior, Helper {
 
@@ -277,11 +280,13 @@ public final class PathingBehavior extends Behavior implements IPathingBehavior,
     }
 
     public void softCancelIfSafe() {
-        if (!isSafeToCancel()) {
-            return;
+        synchronized (pathPlanLock) {
+            if (!isSafeToCancel()) {
+                return;
+            }
+            current = null;
+            next = null;
         }
-        current = null;
-        next = null;
         cancelRequested = true;
         getInProgress().ifPresent(AbstractNodeCostSearch::cancel); // only cancel ours
         // do everything BUT clear keys
@@ -290,8 +295,10 @@ public final class PathingBehavior extends Behavior implements IPathingBehavior,
     // just cancel the current path
     public void secretInternalSegmentCancel() {
         queuePathEvent(PathEvent.CANCELED);
-        current = null;
-        next = null;
+        synchronized (pathPlanLock) {
+            current = null;
+            next = null;
+        }
         baritone.getInputOverrideHandler().clearAllKeys();
         getInProgress().ifPresent(AbstractNodeCostSearch::cancel);
         baritone.getInputOverrideHandler().getBlockBreakHelper().stopBreakingBlock();
@@ -330,12 +337,18 @@ public final class PathingBehavior extends Behavior implements IPathingBehavior,
         }
     }
 
+    public void secretCursedFunctionDoNotCall(IPath path) {
+        synchronized (pathPlanLock) {
+            current = new PathExecutor(this, path);
+        }
+    }
+
     /**
      * See issue #209
      *
      * @return The starting {@link BlockPos} for a new path
      */
-    public BlockPos pathStart() { // TODO move to a helper or util class
+    public BetterBlockPos pathStart() { // TODO move to a helper or util class
         BetterBlockPos feet = ctx.playerFeet();
         if (!MovementHelper.canWalkOn(ctx, feet.down())) {
             if (ctx.player().onGround) {
@@ -405,9 +418,9 @@ public final class PathingBehavior extends Behavior implements IPathingBehavior,
             primaryTimeout = Baritone.settings().planAheadPrimaryTimeoutMS.get();
             failureTimeout = Baritone.settings().planAheadFailureTimeoutMS.get();
         }
-        CalculationContext context = new CalculationContext(baritone); // not safe to create on the other thread, it looks up a lot of stuff in minecraft
+        CalculationContext context = new CalculationContext(baritone, true); // not safe to create on the other thread, it looks up a lot of stuff in minecraft
         AbstractNodeCostSearch pathfinder = createPathfinder(start, goal, current == null ? null : current.getPath(), context);
-        if (!Objects.equals(pathfinder.getGoal(), goal)) {
+        if (!Objects.equals(pathfinder.getGoal(), goal)) { // will return the exact same object if simplification didn't happen
             logDebug("Simplifying " + goal.getClass() + " to GoalXZ due to distance");
         }
         inProgress = pathfinder;
@@ -420,7 +433,7 @@ public final class PathingBehavior extends Behavior implements IPathingBehavior,
             Optional<IPath> path = calcResult.getPath();
             if (Baritone.settings().cutoffAtLoadBoundary.get()) {
                 path = path.map(p -> {
-                    IPath result = p.cutoffAtLoadedChunks(context.world());
+                    IPath result = p.cutoffAtLoadedChunks(context.bsi());
 
                     if (result instanceof CutoffPath) {
                         logDebug("Cutting off path at edge of loaded chunks");
@@ -463,7 +476,9 @@ public final class PathingBehavior extends Behavior implements IPathingBehavior,
                             queuePathEvent(PathEvent.NEXT_CALC_FAILED);
                         }
                     } else {
-                        throw new IllegalStateException("I have no idea what to do with this path");
+                        //throw new IllegalStateException("I have no idea what to do with this path");
+                        // no point in throwing an exception here, and it gets it stuck with inProgress being not null
+                        logDirect("Warning: PathingBehaivor illegal state! Discarding invalid path!");
                     }
                 }
                 if (talkAboutIt && current != null && current.getPath() != null) {
@@ -488,11 +503,8 @@ public final class PathingBehavior extends Behavior implements IPathingBehavior,
                 transformed = new GoalXZ(pos.getX(), pos.getZ());
             }
         }
-        HashSet<Long> favoredPositions = null;
-        if (Baritone.settings().backtrackCostFavoringCoefficient.get() != 1D && previous != null) {
-            favoredPositions = previous.positions().stream().map(BetterBlockPos::longHash).collect(Collectors.toCollection(HashSet::new));
-        }
-        return new AStarPathFinder(start.getX(), start.getY(), start.getZ(), transformed, favoredPositions, context);
+        Favoring favoring = new Favoring(context.getBaritone().getPlayerContext(), previous);
+        return new AStarPathFinder(start.getX(), start.getY(), start.getZ(), transformed, favoring, context);
     }
 
     @Override

src/main/java/baritone/cache/CachedChunk.java

@@ -35,7 +35,7 @@ public final class CachedChunk {
 
     static {
         HashSet<Block> temp = new HashSet<>();
-        temp.add(Blocks.DIAMOND_ORE);
+        //temp.add(Blocks.DIAMOND_ORE);
         temp.add(Blocks.DIAMOND_BLOCK);
         //temp.add(Blocks.COAL_ORE);
         temp.add(Blocks.COAL_BLOCK);

src/main/java/baritone/cache/CachedWorld.java

@@ -255,6 +255,10 @@ public final class CachedWorld implements ICachedWorld, Helper {
         });
     }
 
+    public void tryLoadFromDisk(int regionX, int regionZ) {
+        getOrCreateRegion(regionX, regionZ);
+    }
+
     /**
      * Returns the region ID based on the region coordinates. 0 will be
      * returned if the specified region coordinates are out of bounds.

src/main/java/baritone/cache/ChunkPacker.java

@@ -39,6 +39,8 @@ import java.util.*;
  */
 public final class ChunkPacker {
 
+    private static final Map<String, Block> resourceCache = new HashMap<>();
+
     private ChunkPacker() {}
 
     public static CachedChunk pack(Chunk chunk) {
@@ -91,10 +93,7 @@ public final class ChunkPacker {
         IBlockState[] blocks = new IBlockState[256];
 
         for (int z = 0; z < 16; z++) {
-            // @formatter:off
-            https:
-//www.ibm.com/developerworks/library/j-perry-writing-good-java-code/index.html
-            // @formatter:on
+            https://www.ibm.com/developerworks/library/j-perry-writing-good-java-code/index.html
             for (int x = 0; x < 16; x++) {
                 for (int y = 255; y >= 0; y--) {
                     int index = CachedChunk.getPositionIndex(x, y, z);
@@ -120,7 +119,7 @@ public final class ChunkPacker {
     }
 
     public static Block stringToBlock(String name) {
-        return Block.getBlockFromName(name.contains(":") ? name : "minecraft:" + name);
+        return resourceCache.computeIfAbsent(name, n -> Block.getBlockFromName(n.contains(":") ? n : "minecraft:" + n));
     }
 
     private static PathingBlockType getPathingBlockType(IBlockState state) {

src/main/java/baritone/cache/ContainerMemory.java

@@ -0,0 +1,175 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.cache;
+
+import baritone.api.cache.IContainerMemory;
+import baritone.api.cache.IRememberedInventory;
+import baritone.api.utils.IPlayerContext;
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
+import net.minecraft.item.ItemStack;
+import net.minecraft.network.PacketBuffer;
+import net.minecraft.util.math.BlockPos;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.*;
+
+public class ContainerMemory implements IContainerMemory {
+
+    private final Path saveTo;
+    /**
+     * The current remembered inventories
+     */
+    private final Map<BlockPos, RememberedInventory> inventories = new HashMap<>();
+
+
+    public ContainerMemory(Path saveTo) {
+        this.saveTo = saveTo;
+        try {
+            read(Files.readAllBytes(saveTo));
+        } catch (Exception ex) {
+            ex.printStackTrace();
+            inventories.clear();
+        }
+    }
+
+    private void read(byte[] bytes) throws IOException {
+        PacketBuffer in = new PacketBuffer(Unpooled.wrappedBuffer(bytes));
+        int chests = in.readInt();
+        for (int i = 0; i < chests; i++) {
+            int x = in.readInt();
+            int y = in.readInt();
+            int z = in.readInt();
+            RememberedInventory rem = new RememberedInventory();
+            rem.items.addAll(readItemStacks(in));
+            rem.size = rem.items.size();
+            rem.windowId = -1;
+            if (rem.items.isEmpty()) {
+                continue; // this only happens if the list has no elements, not if the list has elements that are all empty item stacks
+            }
+            inventories.put(new BlockPos(x, y, z), rem);
+        }
+    }
+
+    public synchronized void save() throws IOException {
+        ByteBuf buf = Unpooled.buffer(0, Integer.MAX_VALUE);
+        PacketBuffer out = new PacketBuffer(buf);
+        out.writeInt(inventories.size());
+        for (Map.Entry<BlockPos, RememberedInventory> entry : inventories.entrySet()) {
+            out = new PacketBuffer(out.writeInt(entry.getKey().getX()));
+            out = new PacketBuffer(out.writeInt(entry.getKey().getY()));
+            out = new PacketBuffer(out.writeInt(entry.getKey().getZ()));
+            out = writeItemStacks(entry.getValue().getContents(), out);
+        }
+        Files.write(saveTo, out.array());
+    }
+
+    public synchronized void setup(BlockPos pos, int windowId, int slotCount) {
+        RememberedInventory inventory = inventories.computeIfAbsent(pos, x -> new RememberedInventory());
+        inventory.windowId = windowId;
+        inventory.size = slotCount;
+    }
+
+    public synchronized Optional<RememberedInventory> getInventoryFromWindow(int windowId) {
+        return inventories.values().stream().filter(i -> i.windowId == windowId).findFirst();
+    }
+
+    @Override
+    public final synchronized RememberedInventory getInventoryByPos(BlockPos pos) {
+        return inventories.get(pos);
+    }
+
+    @Override
+    public final synchronized Map<BlockPos, IRememberedInventory> getRememberedInventories() {
+        // make a copy since this map is modified from the packet thread
+        return new HashMap<>(inventories);
+    }
+
+    public static List<ItemStack> readItemStacks(byte[] bytes) throws IOException {
+        PacketBuffer in = new PacketBuffer(Unpooled.wrappedBuffer(bytes));
+        return readItemStacks(in);
+    }
+
+    public static List<ItemStack> readItemStacks(PacketBuffer in) throws IOException {
+        int count = in.readInt();
+        List<ItemStack> result = new ArrayList<>();
+        for (int i = 0; i < count; i++) {
+            result.add(in.readItemStack());
+        }
+        return result;
+    }
+
+    public static byte[] writeItemStacks(List<ItemStack> write) {
+        ByteBuf buf = Unpooled.buffer(0, Integer.MAX_VALUE);
+        PacketBuffer out = new PacketBuffer(buf);
+        out = writeItemStacks(write, out);
+        return out.array();
+    }
+
+    public static PacketBuffer writeItemStacks(List<ItemStack> write, PacketBuffer out) {
+        out = new PacketBuffer(out.writeInt(write.size()));
+        for (ItemStack stack : write) {
+            out = out.writeItemStack(stack);
+        }
+        return out;
+    }
+
+    /**
+     * An inventory that we are aware of.
+     * <p>
+     * Associated with a {@link BlockPos} in {@link ContainerMemory#inventories}.
+     */
+    public static class RememberedInventory implements IRememberedInventory {
+
+        /**
+         * The list of items in the inventory
+         */
+        private final List<ItemStack> items;
+
+        /**
+         * The last known window ID of the inventory
+         */
+        private int windowId;
+
+        /**
+         * The size of the inventory
+         */
+        private int size;
+
+        private RememberedInventory() {
+            this.items = new ArrayList<>();
+        }
+
+        @Override
+        public final List<ItemStack> getContents() {
+            return Collections.unmodifiableList(this.items);
+        }
+
+        @Override
+        public final int getSize() {
+            return this.size;
+        }
+
+        public void updateFromOpenWindow(IPlayerContext ctx) {
+            items.clear();
+            items.addAll(ctx.player().openContainer.getInventory().subList(0, size));
+        }
+    }
+}

src/main/java/baritone/cache/WaypointCollection.java

@@ -32,7 +32,7 @@ import java.util.stream.Collectors;
  *
  * @author leijurv
  */
-public class Waypoints implements IWaypointCollection {
+public class WaypointCollection implements IWaypointCollection {
 
     /**
      * Magic value to detect invalid waypoint files
@@ -42,7 +42,7 @@ public class Waypoints implements IWaypointCollection {
     private final Path directory;
     private final Map<IWaypoint.Tag, Set<IWaypoint>> waypoints;
 
-    Waypoints(Path directory) {
+    WaypointCollection(Path directory) {
         this.directory = directory;
         if (!Files.exists(directory)) {
             try {

src/main/java/baritone/cache/WorldData.java

@@ -19,9 +19,11 @@ package baritone.cache;
 
 import baritone.Baritone;
 import baritone.api.cache.ICachedWorld;
+import baritone.api.cache.IContainerMemory;
 import baritone.api.cache.IWaypointCollection;
 import baritone.api.cache.IWorldData;
 
+import java.io.IOException;
 import java.nio.file.Path;
 
 /**
@@ -32,7 +34,8 @@ import java.nio.file.Path;
 public class WorldData implements IWorldData {
 
     public final CachedWorld cache;
-    private final Waypoints waypoints;
+    private final WaypointCollection waypoints;
+    private final ContainerMemory containerMemory;
     //public final MapData map;
     public final Path directory;
     public final int dimension;
@@ -40,7 +43,8 @@ public class WorldData implements IWorldData {
     WorldData(Path directory, int dimension) {
         this.directory = directory;
         this.cache = new CachedWorld(directory.resolve("cache"), dimension);
-        this.waypoints = new Waypoints(directory.resolve("waypoints"));
+        this.waypoints = new WaypointCollection(directory.resolve("waypoints"));
+        this.containerMemory = new ContainerMemory(directory.resolve("containers"));
         this.dimension = dimension;
     }
 
@@ -49,6 +53,15 @@ public class WorldData implements IWorldData {
             System.out.println("Started saving the world in a new thread");
             cache.save();
         });
+        Baritone.getExecutor().execute(() -> {
+            System.out.println("Started saving saved containers in a new thread");
+            try {
+                containerMemory.save();
+            } catch (IOException e) {
+                e.printStackTrace();
+                System.out.println("Failed to save saved containers");
+            }
+        });
     }
 
     @Override
@@ -60,4 +73,9 @@ public class WorldData implements IWorldData {
     public IWaypointCollection getWaypoints() {
         return this.waypoints;
     }
+
+    @Override
+    public IContainerMemory getContainerMemory() {
+        return this.containerMemory;
+    }
 }

src/main/java/baritone/cache/WorldProvider.java

@@ -95,7 +95,9 @@ public class WorldProvider implements IWorldProvider, Helper {
         }
 
         System.out.println("Baritone world data dir: " + dir);
-        this.currentWorld = worldCache.computeIfAbsent(dir, d -> new WorldData(d, dimension));
+        synchronized (worldCache) {
+            this.currentWorld = worldCache.computeIfAbsent(dir, d -> new WorldData(d, dimension));
+        }
     }
 
     public final void closeWorld() {

src/main/java/baritone/cache/WorldScanner.java

@@ -23,10 +23,12 @@ import net.minecraft.block.Block;
 import net.minecraft.block.state.IBlockState;
 import net.minecraft.client.multiplayer.ChunkProviderClient;
 import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.ChunkPos;
 import net.minecraft.world.chunk.BlockStateContainer;
 import net.minecraft.world.chunk.Chunk;
 import net.minecraft.world.chunk.storage.ExtendedBlockStorage;
 
+import java.util.Collections;
 import java.util.LinkedList;
 import java.util.List;
 
@@ -107,4 +109,45 @@ public enum WorldScanner implements IWorldScanner {
             searchRadiusSq++;
         }
     }
+
+    @Override
+    public List<BlockPos> scanChunk(IPlayerContext ctx, List<Block> blocks, ChunkPos pos, int max, int yLevelThreshold) {
+        if (blocks.isEmpty()) {
+            return Collections.emptyList();
+        }
+
+        ChunkProviderClient chunkProvider = (ChunkProviderClient) ctx.world().getChunkProvider();
+        Chunk chunk = chunkProvider.getLoadedChunk(pos.x, pos.z);
+        int playerY = ctx.playerFeet().getY();
+
+        if (chunk == null || chunk.isEmpty()) {
+            return Collections.emptyList();
+        }
+
+        LinkedList<BlockPos> res = new LinkedList<>();
+        ExtendedBlockStorage[] chunkInternalStorageArray = chunk.getBlockStorageArray();
+        for (int y0 = 0; y0 < 16; y0++) {
+            ExtendedBlockStorage extendedblockstorage = chunkInternalStorageArray[y0];
+            if (extendedblockstorage == null) {
+                continue;
+            }
+            int yReal = y0 << 4;
+            BlockStateContainer bsc = extendedblockstorage.getData();
+            for (int y = 0; y < 16; y++) {
+                for (int z = 0; z < 16; z++) {
+                    for (int x = 0; x < 16; x++) {
+                        IBlockState state = bsc.get(x, y, z);
+                        if (blocks.contains(state.getBlock())) {
+                            int yy = yReal | y;
+                            res.add(new BlockPos((pos.x << 4) | x, yy, (pos.z << 4) | z));
+                            if (res.size() >= max || Math.abs(yy - playerY) < yLevelThreshold) {
+                                return res;
+                            }
+                        }
+                    }
+                }
+            }
+        }
+        return res;
+    }
 }

src/main/java/baritone/pathing/calc/AStarPathFinder.java

@@ -27,9 +27,9 @@ import baritone.pathing.movement.CalculationContext;
 import baritone.pathing.movement.Moves;
 import baritone.utils.Helper;
 import baritone.utils.pathing.BetterWorldBorder;
+import baritone.utils.pathing.Favoring;
 import baritone.utils.pathing.MutableMoveResult;
 
-import java.util.HashSet;
 import java.util.Optional;
 
 /**
@@ -39,12 +39,12 @@ import java.util.Optional;
  */
 public final class AStarPathFinder extends AbstractNodeCostSearch implements Helper {
 
-    private final HashSet<Long> favoredPositions;
+    private final Favoring favoring;
     private final CalculationContext calcContext;
 
-    public AStarPathFinder(int startX, int startY, int startZ, Goal goal, HashSet<Long> favoredPositions, CalculationContext context) {
+    public AStarPathFinder(int startX, int startY, int startZ, Goal goal, Favoring favoring, CalculationContext context) {
         super(startX, startY, startZ, goal, context);
-        this.favoredPositions = favoredPositions;
+        this.favoring = favoring;
         this.calcContext = context;
     }
 
@@ -63,7 +63,7 @@ public final class AStarPathFinder extends AbstractNodeCostSearch implements Hel
             bestSoFar[i] = startNode;
         }
         MutableMoveResult res = new MutableMoveResult();
-        HashSet<Long> favored = favoredPositions;
+        Favoring favored = favoring;
         BetterWorldBorder worldBorder = new BetterWorldBorder(calcContext.world().getWorldBorder());
         long startTime = System.nanoTime() / 1000000L;
         boolean slowPath = Baritone.settings().slowPath.get();
@@ -76,9 +76,8 @@ public final class AStarPathFinder extends AbstractNodeCostSearch implements Hel
         int numNodes = 0;
         int numMovementsConsidered = 0;
         int numEmptyChunk = 0;
-        boolean favoring = favored != null;
+        boolean favoring = !favored.isEmpty();
         int pathingMaxChunkBorderFetch = Baritone.settings().pathingMaxChunkBorderFetch.get(); // grab all settings beforehand so that changing settings during pathing doesn't cause a crash or unpredictable behavior
-        double favorCoeff = Baritone.settings().backtrackCostFavoringCoefficient.get();
         boolean minimumImprovementRepropagation = Baritone.settings().minimumImprovementRepropagation.get();
         while (!openSet.isEmpty() && numEmptyChunk < pathingMaxChunkBorderFetch && !cancelRequested) {
             long now = System.nanoTime() / 1000000L;
@@ -122,7 +121,7 @@ public final class AStarPathFinder extends AbstractNodeCostSearch implements Hel
                 if (actionCost >= ActionCosts.COST_INF) {
                     continue;
                 }
-                if (actionCost <= 0) {
+                if (actionCost <= 0 || Double.isNaN(actionCost)) {
                     throw new IllegalStateException(moves + " calculated implausible cost " + actionCost);
                 }
                 if (moves.dynamicXZ && !worldBorder.entirelyContains(res.x, res.z)) { // see issue #218
@@ -136,16 +135,13 @@ public final class AStarPathFinder extends AbstractNodeCostSearch implements Hel
                     throw new IllegalStateException(moves + " " + res.y + " " + (currentNode.y + moves.yOffset));
                 }
                 long hashCode = BetterBlockPos.longHash(res.x, res.y, res.z);
-                if (favoring && favored.contains(hashCode)) {
+                if (favoring) {
                     // see issue #18
-                    actionCost *= favorCoeff;
+                    actionCost *= favored.calculate(hashCode);
                 }
                 PathNode neighbor = getNodeAtPosition(res.x, res.y, res.z, hashCode);
                 double tentativeCost = currentNode.cost + actionCost;
                 if (tentativeCost < neighbor.cost) {
-                    if (tentativeCost < 0) {
-                        throw new IllegalStateException(moves + " overflowed into negative " + actionCost + " " + neighbor.cost + " " + tentativeCost);
-                    }
                     double improvementBy = neighbor.cost - tentativeCost;
                     // there are floating point errors caused by random combinations of traverse and diagonal over a flat area
                     // that means that sometimes there's a cost improvement of like 10 ^ -16

src/main/java/baritone/pathing/calc/AbstractNodeCostSearch.java

@@ -21,6 +21,7 @@ import baritone.Baritone;
 import baritone.api.pathing.calc.IPath;
 import baritone.api.pathing.calc.IPathFinder;
 import baritone.api.pathing.goals.Goal;
+import baritone.api.utils.BetterBlockPos;
 import baritone.api.utils.PathCalculationResult;
 import baritone.pathing.movement.CalculationContext;
 import baritone.utils.Helper;
@@ -86,7 +87,7 @@ public abstract class AbstractNodeCostSearch implements IPathFinder {
     @Override
     public synchronized PathCalculationResult calculate(long primaryTimeout, long failureTimeout) {
         if (isFinished) {
-            throw new IllegalStateException("Path Finder is currently in use, and cannot be reused!");
+            throw new IllegalStateException("Path finder cannot be reused!");
         }
         cancelRequested = false;
         try {
@@ -135,9 +136,15 @@ public abstract class AbstractNodeCostSearch implements IPathFinder {
      * for the node mapped to the specified pos. If no node is found,
      * a new node is created.
      *
+     * @param x The x position of the node
+     * @param y The y position of the node
+     * @param z The z position of the node
+     * @param hashCode The hash code of the node, provided by {@link BetterBlockPos#longHash(int, int, int)}
+     *
      * @return The associated node
      * @see <a href="https://github.com/cabaletta/baritone/issues/107">Issue #107</a>
      */
+
     protected PathNode getNodeAtPosition(int x, int y, int z, long hashCode) {
         PathNode node = map.get(hashCode);
         if (node == null) {

src/main/java/baritone/pathing/calc/PathNode.java

@@ -73,6 +73,9 @@ public final class PathNode {
         this.previous = null;
         this.cost = ActionCosts.COST_INF;
         this.estimatedCostToGoal = goal.heuristic(x, y, z);
+        if (Double.isNaN(estimatedCostToGoal)) {
+            throw new IllegalStateException(goal + " calculated implausible heuristic");
+        }
         this.isOpen = false;
         this.x = x;
         this.y = y;

src/main/java/baritone/pathing/movement/CalculationContext.java

@@ -53,6 +53,10 @@ public class CalculationContext {
     private final boolean canSprint;
     private final double placeBlockCost;
     private final boolean allowBreak;
+    private final boolean allowParkour;
+    private final boolean allowParkourPlace;
+    private final boolean allowJumpAt256;
+    private final boolean assumeWalkOnWater;
     private final int maxFallHeightNoWater;
     private final int maxFallHeightBucket;
     private final double waterWalkSpeed;
@@ -60,11 +64,15 @@ public class CalculationContext {
     private final BetterWorldBorder worldBorder;
 
     public CalculationContext(IBaritone baritone) {
+        this(baritone, false);
+    }
+
+    public CalculationContext(IBaritone baritone, boolean forUseOnAnotherThread) {
         this.baritone = baritone;
         this.player = baritone.getPlayerContext().player();
         this.world = baritone.getPlayerContext().world();
         this.worldData = (WorldData) baritone.getWorldProvider().getCurrentWorld();
-        this.bsi = new BlockStateInterface(world, worldData); // TODO TODO TODO
+        this.bsi = new BlockStateInterface(world, worldData, forUseOnAnotherThread); // TODO TODO TODO
         // new CalculationContext() needs to happen, can't add an argument (i'll beat you), can we get the world provider from currentlyTicking?
         this.toolSet = new ToolSet(player);
         this.hasThrowaway = Baritone.settings().allowPlace.get() && MovementHelper.throwaway(baritone.getPlayerContext(), false);
@@ -72,6 +80,10 @@ public class CalculationContext {
         this.canSprint = Baritone.settings().allowSprint.get() && player.getFoodStats().getFoodLevel() > 6;
         this.placeBlockCost = Baritone.settings().blockPlacementPenalty.get();
         this.allowBreak = Baritone.settings().allowBreak.get();
+        this.allowParkour = Baritone.settings().allowParkour.get();
+        this.allowParkourPlace = Baritone.settings().allowParkourPlace.get();
+        this.allowJumpAt256 = Baritone.settings().allowJumpAt256.get();
+        this.assumeWalkOnWater = Baritone.settings().assumeWalkOnWater.get();
         this.maxFallHeightNoWater = Baritone.settings().maxFallHeightNoWater.get();
         this.maxFallHeightBucket = Baritone.settings().maxFallHeightBucket.get();
         int depth = EnchantmentHelper.getDepthStriderModifier(player);
@@ -169,6 +181,22 @@ public class CalculationContext {
         return allowBreak;
     }
 
+    public boolean allowParkour() {
+        return allowParkour;
+    }
+
+    public boolean allowParkourPlace() {
+        return allowParkourPlace;
+    }
+
+    public boolean allowJumpAt256() {
+        return allowJumpAt256;
+    }
+
+    public boolean assumeWalkOnWater() {
+        return assumeWalkOnWater;
+    }
+
     public int maxFallHeightNoWater() {
         return maxFallHeightNoWater;
     }

src/main/java/baritone/pathing/movement/Movement.java

@@ -36,6 +36,7 @@ import java.util.Optional;
 public abstract class Movement implements IMovement, MovementHelper {
 
     protected static final EnumFacing[] HORIZONTALS = {EnumFacing.NORTH, EnumFacing.SOUTH, EnumFacing.EAST, EnumFacing.WEST};
+    protected static final EnumFacing[] HORIZONTALS_BUT_ALSO_DOWN____SO_EVERY_DIRECTION_EXCEPT_UP = {EnumFacing.NORTH, EnumFacing.SOUTH, EnumFacing.EAST, EnumFacing.WEST, EnumFacing.DOWN};
 
     protected final IBaritone baritone;
     protected final IPlayerContext ctx;
@@ -151,9 +152,10 @@ public abstract class Movement implements IMovement, MovementHelper {
                 somethingInTheWay = true;
                 Optional<Rotation> reachable = RotationUtils.reachable(ctx.player(), blockPos, ctx.playerController().getBlockReachDistance());
                 if (reachable.isPresent()) {
+                    Rotation rotTowardsBlock = reachable.get();
                     MovementHelper.switchToBestToolFor(ctx, BlockStateInterface.get(ctx, blockPos));
-                    state.setTarget(new MovementState.MovementTarget(reachable.get(), true));
-                    if (Objects.equals(ctx.getSelectedBlock().orElse(null), blockPos)) {
+                    state.setTarget(new MovementState.MovementTarget(rotTowardsBlock, true));
+                    if (Objects.equals(ctx.getSelectedBlock().orElse(null), blockPos) || ctx.playerRotations().isReallyCloseTo(rotTowardsBlock)) {
                         state.setInput(Input.CLICK_LEFT, true);
                     }
                     return false;
@@ -204,10 +206,10 @@ public abstract class Movement implements IMovement, MovementHelper {
     }
 
     /**
-     * Calculate latest movement state.
-     * Gets called once a tick.
+     * Calculate latest movement state. Gets called once a tick.
      *
-     * @return
+     * @param state The current state
+     * @return The new state
      */
     public MovementState updateState(MovementState state) {
         if (!prepared(state)) {
@@ -244,14 +246,13 @@ public abstract class Movement implements IMovement, MovementHelper {
         toWalkIntoCached = null;
     }
 
-    @Override
-    public List<BlockPos> toBreak() {
+    public List<BlockPos> toBreak(BlockStateInterface bsi) {
         if (toBreakCached != null) {
             return toBreakCached;
         }
         List<BlockPos> result = new ArrayList<>();
         for (BetterBlockPos positionToBreak : positionsToBreak) {
-            if (!MovementHelper.canWalkThrough(ctx, positionToBreak)) {
+            if (!MovementHelper.canWalkThrough(bsi, positionToBreak.x, positionToBreak.y, positionToBreak.z)) {
                 result.add(positionToBreak);
             }
         }
@@ -259,21 +260,19 @@ public abstract class Movement implements IMovement, MovementHelper {
         return result;
     }
 
-    @Override
-    public List<BlockPos> toPlace() {
+    public List<BlockPos> toPlace(BlockStateInterface bsi) {
         if (toPlaceCached != null) {
             return toPlaceCached;
         }
         List<BlockPos> result = new ArrayList<>();
-        if (positionToPlace != null && !MovementHelper.canWalkOn(ctx, positionToPlace)) {
+        if (positionToPlace != null && !MovementHelper.canWalkOn(bsi, positionToPlace.x, positionToPlace.y, positionToPlace.z)) {
             result.add(positionToPlace);
         }
         toPlaceCached = result;
         return result;
     }
 
-    @Override
-    public List<BlockPos> toWalkInto() { // overridden by movementdiagonal
+    public List<BlockPos> toWalkInto(BlockStateInterface bsi) { // overridden by movementdiagonal
         if (toWalkIntoCached == null) {
             toWalkIntoCached = new ArrayList<>();
         }

src/main/java/baritone/pathing/movement/MovementHelper.java

@@ -35,8 +35,6 @@ import net.minecraft.item.ItemStack;
 import net.minecraft.util.EnumFacing;
 import net.minecraft.util.NonNullList;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.world.World;
-import net.minecraft.world.chunk.EmptyChunk;
 
 /**
  * Static helpers for cost calculation
@@ -70,7 +68,7 @@ public interface MovementHelper extends ActionCosts, Helper {
         if (block == Blocks.AIR) { // early return for most common case
             return true;
         }
-        if (block == Blocks.FIRE || block == Blocks.TRIPWIRE || block == Blocks.WEB || block == Blocks.END_PORTAL) {
+        if (block == Blocks.FIRE || block == Blocks.TRIPWIRE || block == Blocks.WEB || block == Blocks.END_PORTAL || block == Blocks.COCOA) {
             return false;
         }
         if (block instanceof BlockDoor || block instanceof BlockFenceGate) {
@@ -92,7 +90,11 @@ public interface MovementHelper extends ActionCosts, Helper {
             if (snow) {
                 // the check in BlockSnow.isPassable is layers < 5
                 // while actually, we want < 3 because 3 or greater makes it impassable in a 2 high ceiling
-                return state.getValue(BlockSnow.LAYERS) < 3;
+                if (state.getValue(BlockSnow.LAYERS) >= 3) {
+                    return false;
+                }
+                // ok, it's low enough we could walk through it, but is it supported?
+                return canWalkOn(bsi, x, y - 1, z);
             }
             if (trapdoor) {
                 return !state.getValue(BlockTrapDoor.OPEN); // see BlockTrapDoor.isPassable
@@ -122,7 +124,11 @@ public interface MovementHelper extends ActionCosts, Helper {
      * canWalkThrough but also won't impede movement at all. so not including doors or fence gates (we'd have to right click),
      * not including water, and not including ladders or vines or cobwebs (they slow us down)
      *
-     * @return
+     * @param context Calculation context to provide block state lookup
+     * @param x       The block's x position
+     * @param y       The block's y position
+     * @param z       The block's z position
+     * @return Whether or not the block at the specified position
      */
     static boolean fullyPassable(CalculationContext context, int x, int y, int z) {
         return fullyPassable(context.get(x, y, z));
@@ -139,6 +145,7 @@ public interface MovementHelper extends ActionCosts, Helper {
                 || block == Blocks.WEB
                 || block == Blocks.VINE
                 || block == Blocks.LADDER
+                || block == Blocks.COCOA
                 || block instanceof BlockDoor
                 || block instanceof BlockFenceGate
                 || block instanceof BlockSnow
@@ -151,7 +158,7 @@ public interface MovementHelper extends ActionCosts, Helper {
         return block.isPassable(null, null);
     }
 
-    static boolean isReplacable(int x, int y, int z, IBlockState state, World world) {
+    static boolean isReplacable(int x, int y, int z, IBlockState state, BlockStateInterface bsi) {
         // for MovementTraverse and MovementAscend
         // block double plant defaults to true when the block doesn't match, so don't need to check that case
         // all other overrides just return true or false
@@ -163,9 +170,13 @@ public interface MovementHelper extends ActionCosts, Helper {
          *     }
          */
         Block block = state.getBlock();
+        if (block == Blocks.AIR || isWater(block)) {
+            // early return for common cases hehe
+            return true;
+        }
         if (block instanceof BlockSnow) {
             // as before, default to true (mostly because it would otherwise make long distance pathing through snowy biomes impossible)
-            if (world.getChunk(x >> 4, z >> 4) instanceof EmptyChunk) {
+            if (!bsi.worldContainsLoadedChunk(x, z)) {
                 return true;
             }
             return state.getValue(BlockSnow.LAYERS) == 1;
@@ -238,7 +249,12 @@ public interface MovementHelper extends ActionCosts, Helper {
      * through? Includes water because we know that we automatically jump on
      * water
      *
-     * @return
+     * @param bsi   Block state provider
+     * @param x     The block's x position
+     * @param y     The block's y position
+     * @param z     The block's z position
+     * @param state The state of the block at the specified location
+     * @return Whether or not the specified block can be walked on
      */
     static boolean canWalkOn(BlockStateInterface bsi, int x, int y, int z, IBlockState state) {
         Block block = state.getBlock();
@@ -362,7 +378,8 @@ public interface MovementHelper extends ActionCosts, Helper {
     /**
      * AutoTool for a specific block
      *
-     * @param b the blockstate to mine
+     * @param ctx The player context
+     * @param b   the blockstate to mine
      */
     static void switchToBestToolFor(IPlayerContext ctx, IBlockState b) {
         switchToBestToolFor(ctx, b, new ToolSet(ctx.player()));
@@ -371,8 +388,9 @@ public interface MovementHelper extends ActionCosts, Helper {
     /**
      * AutoTool for a specific block with precomputed ToolSet data
      *
-     * @param b  the blockstate to mine
-     * @param ts previously calculated ToolSet
+     * @param ctx The player context
+     * @param b   the blockstate to mine
+     * @param ts  previously calculated ToolSet
      */
     static void switchToBestToolFor(IPlayerContext ctx, IBlockState b, ToolSet ts) {
         ctx.player().inventory.currentItem = ts.getBestSlot(b.getBlock());
@@ -465,7 +483,6 @@ public interface MovementHelper extends ActionCosts, Helper {
     static boolean isFlowing(IBlockState state) {
         // Will be IFluidState in 1.13
         return state.getBlock() instanceof BlockLiquid
-                && state.getPropertyKeys().contains(BlockLiquid.LEVEL)
                 && state.getValue(BlockLiquid.LEVEL) != 0;
     }
 }

src/main/java/baritone/pathing/movement/Moves.java

@@ -220,51 +220,59 @@ public enum Moves {
         }
     },
 
-    DIAGONAL_NORTHEAST(+1, 0, -1) {
+    DIAGONAL_NORTHEAST(+1, 0, -1, false, true) {
         @Override
         public Movement apply0(CalculationContext context, BetterBlockPos src) {
-            return new MovementDiagonal(context.getBaritone(), src, EnumFacing.NORTH, EnumFacing.EAST);
+            MutableMoveResult res = new MutableMoveResult();
+            apply(context, src.x, src.y, src.z, res);
+            return new MovementDiagonal(context.getBaritone(), src, EnumFacing.NORTH, EnumFacing.EAST, res.y - src.y);
         }
 
         @Override
-        public double cost(CalculationContext context, int x, int y, int z) {
-            return MovementDiagonal.cost(context, x, y, z, x + 1, z - 1);
+        public void apply(CalculationContext context, int x, int y, int z, MutableMoveResult result) {
+            MovementDiagonal.cost(context, x, y, z, x + 1, z - 1, result);
         }
     },
 
-    DIAGONAL_NORTHWEST(-1, 0, -1) {
+    DIAGONAL_NORTHWEST(-1, 0, -1, false, true) {
         @Override
         public Movement apply0(CalculationContext context, BetterBlockPos src) {
-            return new MovementDiagonal(context.getBaritone(), src, EnumFacing.NORTH, EnumFacing.WEST);
+            MutableMoveResult res = new MutableMoveResult();
+            apply(context, src.x, src.y, src.z, res);
+            return new MovementDiagonal(context.getBaritone(), src, EnumFacing.NORTH, EnumFacing.WEST, res.y - src.y);
         }
 
         @Override
-        public double cost(CalculationContext context, int x, int y, int z) {
-            return MovementDiagonal.cost(context, x, y, z, x - 1, z - 1);
+        public void apply(CalculationContext context, int x, int y, int z, MutableMoveResult result) {
+            MovementDiagonal.cost(context, x, y, z, x - 1, z - 1, result);
         }
     },
 
-    DIAGONAL_SOUTHEAST(+1, 0, +1) {
+    DIAGONAL_SOUTHEAST(+1, 0, +1, false, true) {
         @Override
         public Movement apply0(CalculationContext context, BetterBlockPos src) {
-            return new MovementDiagonal(context.getBaritone(), src, EnumFacing.SOUTH, EnumFacing.EAST);
+            MutableMoveResult res = new MutableMoveResult();
+            apply(context, src.x, src.y, src.z, res);
+            return new MovementDiagonal(context.getBaritone(), src, EnumFacing.SOUTH, EnumFacing.EAST, res.y - src.y);
         }
 
         @Override
-        public double cost(CalculationContext context, int x, int y, int z) {
-            return MovementDiagonal.cost(context, x, y, z, x + 1, z + 1);
+        public void apply(CalculationContext context, int x, int y, int z, MutableMoveResult result) {
+            MovementDiagonal.cost(context, x, y, z, x + 1, z + 1, result);
         }
     },
 
-    DIAGONAL_SOUTHWEST(-1, 0, +1) {
+    DIAGONAL_SOUTHWEST(-1, 0, +1, false, true) {
         @Override
         public Movement apply0(CalculationContext context, BetterBlockPos src) {
-            return new MovementDiagonal(context.getBaritone(), src, EnumFacing.SOUTH, EnumFacing.WEST);
+            MutableMoveResult res = new MutableMoveResult();
+            apply(context, src.x, src.y, src.z, res);
+            return new MovementDiagonal(context.getBaritone(), src, EnumFacing.SOUTH, EnumFacing.WEST, res.y - src.y);
         }
 
         @Override
-        public double cost(CalculationContext context, int x, int y, int z) {
-            return MovementDiagonal.cost(context, x, y, z, x - 1, z + 1);
+        public void apply(CalculationContext context, int x, int y, int z, MutableMoveResult result) {
+            MovementDiagonal.cost(context, x, y, z, x - 1, z + 1, result);
         }
     },
 

src/main/java/baritone/pathing/movement/movements/MovementAscend.java

@@ -57,36 +57,23 @@ public class MovementAscend extends Movement {
     }
 
     public static double cost(CalculationContext context, int x, int y, int z, int destX, int destZ) {
-        IBlockState srcDown = context.get(x, y - 1, z);
-        if (srcDown.getBlock() == Blocks.LADDER || srcDown.getBlock() == Blocks.VINE) {
-            return COST_INF;
-        }
-        // we can jump from soul sand, but not from a bottom slab
-        boolean jumpingFromBottomSlab = MovementHelper.isBottomSlab(srcDown);
         IBlockState toPlace = context.get(destX, y, destZ);
-        boolean jumpingToBottomSlab = MovementHelper.isBottomSlab(toPlace);
-
-        if (jumpingFromBottomSlab && !jumpingToBottomSlab) {
-            return COST_INF;// the only thing we can ascend onto from a bottom slab is another bottom slab
-        }
         boolean hasToPlace = false;
         if (!MovementHelper.canWalkOn(context.bsi(), destX, y, destZ, toPlace)) {
             if (!context.canPlaceThrowawayAt(destX, y, destZ)) {
                 return COST_INF;
             }
-            if (toPlace.getBlock() != Blocks.AIR && !MovementHelper.isWater(toPlace.getBlock()) && !MovementHelper.isReplacable(destX, y, destZ, toPlace, context.world())) {
+            if (!MovementHelper.isReplacable(destX, y, destZ, toPlace, context.bsi())) {
                 return COST_INF;
             }
-            // TODO: add ability to place against .down() as well as the cardinal directions
-            // useful for when you are starting a staircase without anything to place against
-            // Counterpoint to the above TODO ^ you should move then pillar instead of ascend
-            for (int i = 0; i < 4; i++) {
-                int againstX = destX + HORIZONTALS[i].getXOffset();
-                int againstZ = destZ + HORIZONTALS[i].getZOffset();
-                if (againstX == x && againstZ == z) {
+            for (int i = 0; i < 5; i++) {
+                int againstX = destX + HORIZONTALS_BUT_ALSO_DOWN____SO_EVERY_DIRECTION_EXCEPT_UP[i].getXOffset();
+                int againstY = y + HORIZONTALS_BUT_ALSO_DOWN____SO_EVERY_DIRECTION_EXCEPT_UP[i].getYOffset();
+                int againstZ = destZ + HORIZONTALS_BUT_ALSO_DOWN____SO_EVERY_DIRECTION_EXCEPT_UP[i].getZOffset();
+                if (againstX == x && againstZ == z) { // we might be able to backplace now, but it doesn't matter because it will have been broken by the time we'd need to use it
                     continue;
                 }
-                if (MovementHelper.canPlaceAgainst(context.bsi(), againstX, y, againstZ)) {
+                if (MovementHelper.canPlaceAgainst(context.bsi(), againstX, againstY, againstZ)) {
                     hasToPlace = true;
                     break;
                 }
@@ -95,8 +82,8 @@ public class MovementAscend extends Movement {
                 return COST_INF;
             }
         }
-        IBlockState srcUp2 = null;
-        if (context.get(x, y + 3, z).getBlock() instanceof BlockFalling && (MovementHelper.canWalkThrough(context.bsi(), x, y + 1, z) || !((srcUp2 = context.get(x, y + 2, z)).getBlock() instanceof BlockFalling))) {//it would fall on us and possibly suffocate us
+        IBlockState srcUp2 = context.get(x, y + 2, z); // used lower down anyway
+        if (context.get(x, y + 3, z).getBlock() instanceof BlockFalling && (MovementHelper.canWalkThrough(context.bsi(), x, y + 1, z) || !(srcUp2.getBlock() instanceof BlockFalling))) {//it would fall on us and possibly suffocate us
             // HOWEVER, we assume that we're standing in the start position
             // that means that src and src.up(1) are both air
             // maybe they aren't now, but they will be by the time this starts
@@ -114,6 +101,16 @@ public class MovementAscend extends Movement {
             // it's possible srcUp is AIR from the start, and srcUp2 is falling
             // and in that scenario, when we arrive and break srcUp2, that lets srcUp3 fall on us and suffocate us
         }
+        IBlockState srcDown = context.get(x, y - 1, z);
+        if (srcDown.getBlock() == Blocks.LADDER || srcDown.getBlock() == Blocks.VINE) {
+            return COST_INF;
+        }
+        // we can jump from soul sand, but not from a bottom slab
+        boolean jumpingFromBottomSlab = MovementHelper.isBottomSlab(srcDown);
+        boolean jumpingToBottomSlab = MovementHelper.isBottomSlab(toPlace);
+        if (jumpingFromBottomSlab && !jumpingToBottomSlab) {
+            return COST_INF;// the only thing we can ascend onto from a bottom slab is another bottom slab
+        }
         double walk;
         if (jumpingToBottomSlab) {
             if (jumpingFromBottomSlab) {
@@ -136,10 +133,9 @@ public class MovementAscend extends Movement {
         if (hasToPlace) {
             totalCost += context.placeBlockCost();
         }
-        if (srcUp2 == null) {
-            srcUp2 = context.get(x, y + 2, z);
-        }
-        totalCost += MovementHelper.getMiningDurationTicks(context, x, y + 2, z, srcUp2, false); // TODO MAKE ABSOLUTELY SURE we don't need includeFalling here, from the falling check above
+        // start with srcUp2 since we already have its state
+        // includeFalling isn't needed because of the falling check above -- if srcUp3 is falling we will have already exited with COST_INF if we'd actually have to break it
+        totalCost += MovementHelper.getMiningDurationTicks(context, x, y + 2, z, srcUp2, false);
         if (totalCost >= COST_INF) {
             return COST_INF;
         }
@@ -166,8 +162,8 @@ public class MovementAscend extends Movement {
 
         IBlockState jumpingOnto = BlockStateInterface.get(ctx, positionToPlace);
         if (!MovementHelper.canWalkOn(ctx, positionToPlace, jumpingOnto)) {
-            for (int i = 0; i < 4; i++) {
-                BlockPos anAgainst = positionToPlace.offset(HORIZONTALS[i]);
+            for (int i = 0; i < 5; i++) {
+                BlockPos anAgainst = positionToPlace.offset(HORIZONTALS_BUT_ALSO_DOWN____SO_EVERY_DIRECTION_EXCEPT_UP[i]);
                 if (anAgainst.equals(src)) {
                     continue;
                 }

src/main/java/baritone/pathing/movement/movements/MovementDescend.java

@@ -17,7 +17,6 @@
 
 package baritone.pathing.movement.movements;
 
-import baritone.Baritone;
 import baritone.api.IBaritone;
 import baritone.api.pathing.movement.MovementStatus;
 import baritone.api.utils.BetterBlockPos;
@@ -63,11 +62,6 @@ public class MovementDescend extends Movement {
     }
 
     public static void cost(CalculationContext context, int x, int y, int z, int destX, int destZ, MutableMoveResult res) {
-        Block fromDown = context.get(x, y - 1, z).getBlock();
-        if (fromDown == Blocks.LADDER || fromDown == Blocks.VINE) {
-            return;
-        }
-
         double totalCost = 0;
         IBlockState destDown = context.get(destX, y - 1, destZ);
         totalCost += MovementHelper.getMiningDurationTicks(context, destX, y - 1, destZ, destDown, false);
@@ -83,6 +77,11 @@ public class MovementDescend extends Movement {
             return;
         }
 
+        Block fromDown = context.get(x, y - 1, z).getBlock();
+        if (fromDown == Blocks.LADDER || fromDown == Blocks.VINE) {
+            return;
+        }
+
         // A
         //SA
         // A
@@ -107,7 +106,7 @@ public class MovementDescend extends Movement {
         double walk = WALK_OFF_BLOCK_COST;
         if (fromDown == Blocks.SOUL_SAND) {
             // use this ratio to apply the soul sand speed penalty to our 0.8 block distance
-            walk = WALK_ONE_OVER_SOUL_SAND_COST;
+            walk *= WALK_ONE_OVER_SOUL_SAND_COST / WALK_ONE_BLOCK_COST;
         }
         totalCost += walk + Math.max(FALL_N_BLOCKS_COST[1], CENTER_AFTER_FALL_COST);
         res.x = destX;
@@ -116,66 +115,84 @@ public class MovementDescend extends Movement {
         res.cost = totalCost;
     }
 
-    public static void dynamicFallCost(CalculationContext context, int x, int y, int z, int destX, int destZ, double frontBreak, IBlockState below, MutableMoveResult res) {
+    public static boolean dynamicFallCost(CalculationContext context, int x, int y, int z, int destX, int destZ, double frontBreak, IBlockState below, MutableMoveResult res) {
         if (frontBreak != 0 && context.get(destX, y + 2, destZ).getBlock() instanceof BlockFalling) {
             // if frontBreak is 0 we can actually get through this without updating the falling block and making it actually fall
             // but if frontBreak is nonzero, we're breaking blocks in front, so don't let anything fall through this column,
             // and potentially replace the water we're going to fall into
-            return;
+            return false;
         }
         if (!MovementHelper.canWalkThrough(context.bsi(), destX, y - 2, destZ, below) && below.getBlock() != Blocks.WATER) {
-            return;
+            return false;
         }
+        double costSoFar = 0;
+        int effectiveStartHeight = y;
         for (int fallHeight = 3; true; fallHeight++) {
             int newY = y - fallHeight;
             if (newY < 0) {
                 // when pathing in the end, where you could plausibly fall into the void
                 // this check prevents it from getting the block at y=-1 and crashing
-                return;
+                return false;
             }
             IBlockState ontoBlock = context.get(destX, newY, destZ);
-            double tentativeCost = WALK_OFF_BLOCK_COST + FALL_N_BLOCKS_COST[fallHeight] + frontBreak;
-            if (ontoBlock.getBlock() == Blocks.WATER && !MovementHelper.isFlowing(ontoBlock) && context.getBlock(destX, newY + 1, destZ) != Blocks.WATERLILY) { // TODO flowing check required here?
+            int unprotectedFallHeight = fallHeight - (y - effectiveStartHeight); // equal to fallHeight - y + effectiveFallHeight, which is equal to -newY + effectiveFallHeight, which is equal to effectiveFallHeight - newY
+            double tentativeCost = WALK_OFF_BLOCK_COST + FALL_N_BLOCKS_COST[unprotectedFallHeight] + frontBreak + costSoFar;
+            if (ontoBlock.getBlock() == Blocks.WATER && context.getBlock(destX, newY + 1, destZ) != Blocks.WATERLILY) {
                 // lilypads are canWalkThrough, but we can't end a fall that should be broken by water if it's covered by a lilypad
                 // however, don't return impossible in the lilypad scenario, because we could still jump right on it (water that's below a lilypad is canWalkOn so it works)
-                if (Baritone.settings().assumeWalkOnWater.get()) {
-                    return; // TODO fix
+                if (context.assumeWalkOnWater()) {
+                    return false; // TODO fix
+                }
+                if (MovementHelper.isFlowing(ontoBlock)) {
+                    return false; // TODO flowing check required here?
+                }
+                if (!MovementHelper.canWalkOn(context.bsi(), destX, newY - 1, destZ)) {
+                    // we could punch right through the water into something else
+                    return false;
                 }
                 // found a fall into water
                 res.x = destX;
                 res.y = newY;
                 res.z = destZ;
                 res.cost = tentativeCost;// TODO incorporate water swim up cost?
-                return;
+                return false;
             }
             if (ontoBlock.getBlock() == Blocks.FLOWING_WATER) {
-                return;
+                return false;
+            }
+            if (unprotectedFallHeight <= 11 && (ontoBlock.getBlock() == Blocks.VINE || ontoBlock.getBlock() == Blocks.LADDER)) {
+                // if fall height is greater than or equal to 11, we don't actually grab on to vines or ladders. the more you know
+                // this effectively "resets" our falling speed
+                costSoFar += FALL_N_BLOCKS_COST[unprotectedFallHeight - 1];// we fall until the top of this block (not including this block)
+                costSoFar += LADDER_DOWN_ONE_COST;
+                effectiveStartHeight = newY;
+                continue;
             }
             if (MovementHelper.canWalkThrough(context.bsi(), destX, newY, destZ, ontoBlock)) {
                 continue;
             }
             if (!MovementHelper.canWalkOn(context.bsi(), destX, newY, destZ, ontoBlock)) {
-                return;
+                return false;
             }
             if (MovementHelper.isBottomSlab(ontoBlock)) {
-                return; // falling onto a half slab is really glitchy, and can cause more fall damage than we'd expect
+                return false; // falling onto a half slab is really glitchy, and can cause more fall damage than we'd expect
             }
-            if (context.hasWaterBucket() && fallHeight <= context.maxFallHeightBucket() + 1) {
+            if (context.hasWaterBucket() && unprotectedFallHeight <= context.maxFallHeightBucket() + 1) {
                 res.x = destX;
                 res.y = newY + 1;// this is the block we're falling onto, so dest is +1
                 res.z = destZ;
                 res.cost = tentativeCost + context.placeBlockCost();
-                return;
+                return true;
             }
-            if (fallHeight <= context.maxFallHeightNoWater() + 1) {
+            if (unprotectedFallHeight <= context.maxFallHeightNoWater() + 1) {
                 // fallHeight = 4 means onto.up() is 3 blocks down, which is the max
                 res.x = destX;
                 res.y = newY + 1;
                 res.z = destZ;
                 res.cost = tentativeCost;
-                return;
+                return false;
             } else {
-                return;
+                return false;
             }
         }
     }

src/main/java/baritone/pathing/movement/movements/MovementDiagonal.java

@@ -25,6 +25,8 @@ import baritone.pathing.movement.CalculationContext;
 import baritone.pathing.movement.Movement;
 import baritone.pathing.movement.MovementHelper;
 import baritone.pathing.movement.MovementState;
+import baritone.utils.BlockStateInterface;
+import baritone.utils.pathing.MutableMoveResult;
 import net.minecraft.block.Block;
 import net.minecraft.block.state.IBlockState;
 import net.minecraft.init.Blocks;
@@ -38,13 +40,13 @@ public class MovementDiagonal extends Movement {
 
     private static final double SQRT_2 = Math.sqrt(2);
 
-    public MovementDiagonal(IBaritone baritone, BetterBlockPos start, EnumFacing dir1, EnumFacing dir2) {
-        this(baritone, start, start.offset(dir1), start.offset(dir2), dir2);
+    public MovementDiagonal(IBaritone baritone, BetterBlockPos start, EnumFacing dir1, EnumFacing dir2, int dy) {
+        this(baritone, start, start.offset(dir1), start.offset(dir2), dir2, dy);
         // super(start, start.offset(dir1).offset(dir2), new BlockPos[]{start.offset(dir1), start.offset(dir1).up(), start.offset(dir2), start.offset(dir2).up(), start.offset(dir1).offset(dir2), start.offset(dir1).offset(dir2).up()}, new BlockPos[]{start.offset(dir1).offset(dir2).down()});
     }
 
-    private MovementDiagonal(IBaritone baritone, BetterBlockPos start, BetterBlockPos dir1, BetterBlockPos dir2, EnumFacing drr2) {
-        this(baritone, start, dir1.offset(drr2), dir1, dir2);
+    private MovementDiagonal(IBaritone baritone, BetterBlockPos start, BetterBlockPos dir1, BetterBlockPos dir2, EnumFacing drr2, int dy) {
+        this(baritone, start, dir1.offset(drr2).up(dy), dir1, dir2);
     }
 
     private MovementDiagonal(IBaritone baritone, BetterBlockPos start, BetterBlockPos end, BetterBlockPos dir1, BetterBlockPos dir2) {
@@ -53,37 +55,46 @@ public class MovementDiagonal extends Movement {
 
     @Override
     protected double calculateCost(CalculationContext context) {
-        return cost(context, src.x, src.y, src.z, dest.x, dest.z);
+        MutableMoveResult result = new MutableMoveResult();
+        cost(context, src.x, src.y, src.z, dest.x, dest.z, result);
+        if (result.y != dest.y) {
+            return COST_INF; // doesn't apply to us, this position is incorrect
+        }
+        return result.cost;
     }
 
-    public static double cost(CalculationContext context, int x, int y, int z, int destX, int destZ) {
-        Block fromDown = context.get(x, y - 1, z).getBlock();
-        if (fromDown == Blocks.LADDER || fromDown == Blocks.VINE) {
-            return COST_INF;
-        }
+    public static void cost(CalculationContext context, int x, int y, int z, int destX, int destZ, MutableMoveResult res) {
         IBlockState destInto = context.get(destX, y, destZ);
         if (!MovementHelper.canWalkThrough(context.bsi(), destX, y, destZ, destInto) || !MovementHelper.canWalkThrough(context.bsi(), destX, y + 1, destZ)) {
-            return COST_INF;
+            return;
         }
         IBlockState destWalkOn = context.get(destX, y - 1, destZ);
+        boolean descend = false;
         if (!MovementHelper.canWalkOn(context.bsi(), destX, y - 1, destZ, destWalkOn)) {
-            return COST_INF;
+            descend = true;
+            if (!MovementHelper.canWalkOn(context.bsi(), destX, y - 2, destZ) || !MovementHelper.canWalkThrough(context.bsi(), destX, y - 1, destZ, destWalkOn)) {
+                return;
+            }
         }
         double multiplier = WALK_ONE_BLOCK_COST;
         // For either possible soul sand, that affects half of our walking
         if (destWalkOn.getBlock() == Blocks.SOUL_SAND) {
             multiplier += (WALK_ONE_OVER_SOUL_SAND_COST - WALK_ONE_BLOCK_COST) / 2;
         }
+        Block fromDown = context.get(x, y - 1, z).getBlock();
+        if (fromDown == Blocks.LADDER || fromDown == Blocks.VINE) {
+            return;
+        }
         if (fromDown == Blocks.SOUL_SAND) {
             multiplier += (WALK_ONE_OVER_SOUL_SAND_COST - WALK_ONE_BLOCK_COST) / 2;
         }
         Block cuttingOver1 = context.get(x, y - 1, destZ).getBlock();
         if (cuttingOver1 == Blocks.MAGMA || MovementHelper.isLava(cuttingOver1)) {
-            return COST_INF;
+            return;
         }
         Block cuttingOver2 = context.get(destX, y - 1, z).getBlock();
         if (cuttingOver2 == Blocks.MAGMA || MovementHelper.isLava(cuttingOver2)) {
-            return COST_INF;
+            return;
         }
         IBlockState pb0 = context.get(x, y, destZ);
         IBlockState pb2 = context.get(destX, y, z);
@@ -92,30 +103,31 @@ public class MovementDiagonal extends Movement {
         if (optionA != 0 && optionB != 0) {
             // check these one at a time -- if pb0 and pb2 were nonzero, we already know that (optionA != 0 && optionB != 0)
             // so no need to check pb1 as well, might as well return early here
-            return COST_INF;
+            return;
         }
         IBlockState pb1 = context.get(x, y + 1, destZ);
         optionA += MovementHelper.getMiningDurationTicks(context, x, y + 1, destZ, pb1, true);
         if (optionA != 0 && optionB != 0) {
             // same deal, if pb1 makes optionA nonzero and option B already was nonzero, pb3 can't affect the result
-            return COST_INF;
+            return;
         }
         IBlockState pb3 = context.get(destX, y + 1, z);
         if (optionA == 0 && ((MovementHelper.avoidWalkingInto(pb2.getBlock()) && pb2.getBlock() != Blocks.WATER) || (MovementHelper.avoidWalkingInto(pb3.getBlock()) && pb3.getBlock() != Blocks.WATER))) {
             // at this point we're done calculating optionA, so we can check if it's actually possible to edge around in that direction
-            return COST_INF;
+            return;
         }
         optionB += MovementHelper.getMiningDurationTicks(context, destX, y + 1, z, pb3, true);
         if (optionA != 0 && optionB != 0) {
             // and finally, if the cost is nonzero for both ways to approach this diagonal, it's not possible
-            return COST_INF;
+            return;
         }
         if (optionB == 0 && ((MovementHelper.avoidWalkingInto(pb0.getBlock()) && pb0.getBlock() != Blocks.WATER) || (MovementHelper.avoidWalkingInto(pb1.getBlock()) && pb1.getBlock() != Blocks.WATER))) {
             // and now that option B is fully calculated, see if we can edge around that way
-            return COST_INF;
+            return;
         }
         boolean water = false;
-        if (MovementHelper.isWater(context.getBlock(x, y, z)) || MovementHelper.isWater(destInto.getBlock())) {
+        Block startIn = context.getBlock(x, y, z);
+        if (MovementHelper.isWater(startIn) || MovementHelper.isWater(destInto.getBlock())) {
             // Ignore previous multiplier
             // Whatever we were walking on (possibly soul sand) doesn't matter as we're actually floating on water
             // Not even touching the blocks below
@@ -124,14 +136,28 @@ public class MovementDiagonal extends Movement {
         }
         if (optionA != 0 || optionB != 0) {
             multiplier *= SQRT_2 - 0.001; // TODO tune
+            if (startIn == Blocks.LADDER || startIn == Blocks.VINE) {
+                // edging around doesn't work if doing so would climb a ladder or vine instead of moving sideways
+                return;
+            }
+        } else {
+            // only can sprint if not edging around
+            if (context.canSprint() && !water) {
+                // If we aren't edging around anything, and we aren't in water
+                // We can sprint =D
+                // Don't check for soul sand, since we can sprint on that too
+                multiplier *= SPRINT_MULTIPLIER;
+            }
         }
-        if (context.canSprint() && !water) {
-            // If we aren't edging around anything, and we aren't in water
-            // We can sprint =D
-            // Don't check for soul sand, since we can sprint on that too
-            multiplier *= SPRINT_MULTIPLIER;
+        res.cost = multiplier * SQRT_2;
+        if (descend) {
+            res.cost += Math.max(FALL_N_BLOCKS_COST[1], CENTER_AFTER_FALL_COST);
+            res.y = y - 1;
+        } else {
+            res.y = y;
         }
-        return multiplier * SQRT_2;
+        res.x = destX;
+        res.z = destZ;
     }
 
     @Override
@@ -158,13 +184,13 @@ public class MovementDiagonal extends Movement {
     }
 
     @Override
-    public List<BlockPos> toBreak() {
+    public List<BlockPos> toBreak(BlockStateInterface bsi) {
         if (toBreakCached != null) {
             return toBreakCached;
         }
         List<BlockPos> result = new ArrayList<>();
         for (int i = 4; i < 6; i++) {
-            if (!MovementHelper.canWalkThrough(ctx, positionsToBreak[i])) {
+            if (!MovementHelper.canWalkThrough(bsi, positionsToBreak[i].x, positionsToBreak[i].y, positionsToBreak[i].z)) {
                 result.add(positionsToBreak[i]);
             }
         }
@@ -173,13 +199,13 @@ public class MovementDiagonal extends Movement {
     }
 
     @Override
-    public List<BlockPos> toWalkInto() {
+    public List<BlockPos> toWalkInto(BlockStateInterface bsi) {
         if (toWalkIntoCached == null) {
             toWalkIntoCached = new ArrayList<>();
         }
         List<BlockPos> result = new ArrayList<>();
         for (int i = 0; i < 4; i++) {
-            if (!MovementHelper.canWalkThrough(ctx, positionsToBreak[i])) {
+            if (!MovementHelper.canWalkThrough(bsi, positionsToBreak[i].x, positionsToBreak[i].y, positionsToBreak[i].z)) {
                 result.add(positionsToBreak[i]);
             }
         }

src/main/java/baritone/pathing/movement/movements/MovementDownward.java

@@ -51,14 +51,13 @@ public class MovementDownward extends Movement {
         if (!MovementHelper.canWalkOn(context.bsi(), x, y - 2, z)) {
             return COST_INF;
         }
-        IBlockState d = context.get(x, y - 1, z);
-        Block td = d.getBlock();
-        boolean ladder = td == Blocks.LADDER || td == Blocks.VINE;
-        if (ladder) {
+        IBlockState down = context.get(x, y - 1, z);
+        Block downBlock = down.getBlock();
+        if (downBlock == Blocks.LADDER || downBlock == Blocks.VINE) {
             return LADDER_DOWN_ONE_COST;
         } else {
             // we're standing on it, while it might be block falling, it'll be air by the time we get here in the movement
-            return FALL_N_BLOCKS_COST[1] + MovementHelper.getMiningDurationTicks(context, x, y - 1, z, d, false);
+            return FALL_N_BLOCKS_COST[1] + MovementHelper.getMiningDurationTicks(context, x, y - 1, z, down, false);
         }
     }
 

src/main/java/baritone/pathing/movement/movements/MovementFall.java

@@ -17,7 +17,6 @@
 
 package baritone.pathing.movement.movements;
 
-import baritone.Baritone;
 import baritone.api.IBaritone;
 import baritone.api.pathing.movement.MovementStatus;
 import baritone.api.utils.BetterBlockPos;
@@ -31,12 +30,19 @@ import baritone.pathing.movement.MovementHelper;
 import baritone.pathing.movement.MovementState;
 import baritone.pathing.movement.MovementState.MovementTarget;
 import baritone.utils.pathing.MutableMoveResult;
+import net.minecraft.block.BlockLadder;
+import net.minecraft.block.state.IBlockState;
 import net.minecraft.entity.player.InventoryPlayer;
+import net.minecraft.init.Blocks;
 import net.minecraft.init.Items;
 import net.minecraft.item.ItemStack;
+import net.minecraft.util.EnumFacing;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.RayTraceResult;
 import net.minecraft.util.math.Vec3d;
+import net.minecraft.util.math.Vec3i;
+
+import java.util.Optional;
 
 public class MovementFall extends Movement {
 
@@ -57,6 +63,12 @@ public class MovementFall extends Movement {
         return result.cost;
     }
 
+    private boolean willPlaceBucket() {
+        CalculationContext context = new CalculationContext(baritone);
+        MutableMoveResult result = new MutableMoveResult();
+        return MovementDescend.dynamicFallCost(context, src.x, src.y, src.z, dest.x, dest.z, 0, context.get(dest.x, src.y - 2, dest.z), result);
+    }
+
     @Override
     public MovementState updateState(MovementState state) {
         super.updateState(state);
@@ -67,7 +79,7 @@ public class MovementFall extends Movement {
         BlockPos playerFeet = ctx.playerFeet();
         Rotation toDest = RotationUtils.calcRotationFromVec3d(ctx.playerHead(), VecUtils.getBlockPosCenter(dest));
         Rotation targetRotation = null;
-        if (!MovementHelper.isWater(ctx, dest) && src.getY() - dest.getY() > Baritone.settings().maxFallHeightNoWater.get() && !playerFeet.equals(dest)) {
+        if (!MovementHelper.isWater(ctx, dest) && willPlaceBucket() && !playerFeet.equals(dest)) {
             if (!InventoryPlayer.isHotbar(ctx.player().inventory.getSlotFor(STACK_BUCKET_WATER)) || ctx.world().provider.isNether()) {
                 return state.setStatus(MovementStatus.UNREACHABLE);
             }
@@ -78,7 +90,7 @@ public class MovementFall extends Movement {
                 targetRotation = new Rotation(toDest.getYaw(), 90.0F);
 
                 RayTraceResult trace = ctx.objectMouseOver();
-                if (trace != null && trace.typeOfHit == RayTraceResult.Type.BLOCK && ctx.player().rotationPitch > 89.0F) {
+                if (trace != null && trace.typeOfHit == RayTraceResult.Type.BLOCK && (trace.getBlockPos().equals(dest) || trace.getBlockPos().equals(dest.down()))) {
                     state.setInput(Input.CLICK_RIGHT, true);
                 }
             }
@@ -107,12 +119,40 @@ public class MovementFall extends Movement {
             }
         }
         Vec3d destCenter = VecUtils.getBlockPosCenter(dest); // we are moving to the 0.5 center not the edge (like if we were falling on a ladder)
-        if (Math.abs(ctx.player().posX - destCenter.x) > 0.15 || Math.abs(ctx.player().posZ - destCenter.z) > 0.15) {
+        if (Math.abs(ctx.player().posX + ctx.player().motionX - destCenter.x) > 0.1 || Math.abs(ctx.player().posZ + ctx.player().motionZ - destCenter.z) > 0.1) {
+            if (!ctx.player().onGround && Math.abs(ctx.player().motionY) > 0.4) {
+                state.setInput(Input.SNEAK, true);
+            }
             state.setInput(Input.MOVE_FORWARD, true);
         }
+        Vec3i avoid = Optional.ofNullable(avoid()).map(EnumFacing::getDirectionVec).orElse(null);
+        if (avoid == null) {
+            avoid = src.subtract(dest);
+        } else {
+            double dist = Math.abs(avoid.getX() * (destCenter.x - avoid.getX() / 2.0 - ctx.player().posX)) + Math.abs(avoid.getZ() * (destCenter.z - avoid.getZ() / 2.0 - ctx.player().posZ));
+            if (dist < 0.6) {
+                state.setInput(Input.MOVE_FORWARD, true);
+            } else {
+                state.setInput(Input.SNEAK, false);
+            }
+        }
+        if (targetRotation == null) {
+            Vec3d destCenterOffset = new Vec3d(destCenter.x + 0.125 * avoid.getX(), destCenter.y, destCenter.z + 0.125 * avoid.getZ());
+            state.setTarget(new MovementTarget(RotationUtils.calcRotationFromVec3d(ctx.playerHead(), destCenterOffset), false));
+        }
         return state;
     }
 
+    private EnumFacing avoid() {
+        for (int i = 0; i < 15; i++) {
+            IBlockState state = ctx.world().getBlockState(ctx.playerFeet().down(i));
+            if (state.getBlock() == Blocks.LADDER) {
+                return state.getValue(BlockLadder.FACING);
+            }
+        }
+        return null;
+    }
+
     @Override
     public boolean safeToCancel(MovementState state) {
         // if we haven't started walking off the edge yet, or if we're in the process of breaking blocks before doing the fall

src/main/java/baritone/pathing/movement/movements/MovementParkour.java

@@ -17,7 +17,6 @@
 
 package baritone.pathing.movement.movements;
 
-import baritone.Baritone;
 import baritone.api.IBaritone;
 import baritone.api.pathing.movement.MovementStatus;
 import baritone.api.utils.BetterBlockPos;
@@ -30,7 +29,6 @@ import baritone.pathing.movement.Movement;
 import baritone.pathing.movement.MovementHelper;
 import baritone.pathing.movement.MovementState;
 import baritone.utils.BlockStateInterface;
-import baritone.utils.Helper;
 import baritone.utils.pathing.MutableMoveResult;
 import net.minecraft.block.Block;
 import net.minecraft.block.BlockStairs;
@@ -41,11 +39,8 @@ import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.RayTraceResult;
 import net.minecraft.util.math.Vec3d;
 
-import java.util.Objects;
-
 public class MovementParkour extends Movement {
 
-    private static final EnumFacing[] HORIZONTALS_BUT_ALSO_DOWN____SO_EVERY_DIRECTION_EXCEPT_UP = {EnumFacing.NORTH, EnumFacing.SOUTH, EnumFacing.EAST, EnumFacing.WEST, EnumFacing.DOWN};
     private static final BetterBlockPos[] EMPTY = new BetterBlockPos[]{};
 
     private final EnumFacing direction;
@@ -65,24 +60,25 @@ public class MovementParkour extends Movement {
     }
 
     public static void cost(CalculationContext context, int x, int y, int z, EnumFacing dir, MutableMoveResult res) {
-        if (!Baritone.settings().allowParkour.get()) {
+        if (!context.allowParkour()) {
             return;
         }
-        IBlockState standingOn = context.get(x, y - 1, z);
-        if (standingOn.getBlock() == Blocks.VINE || standingOn.getBlock() == Blocks.LADDER || standingOn.getBlock() instanceof BlockStairs || MovementHelper.isBottomSlab(standingOn)) {
-            return;
-        }
-        int xDiff = dir.getXOffset();
-        int zDiff = dir.getZOffset();
-        IBlockState adj = context.get(x + xDiff, y - 1, z + zDiff);
-        if (MovementHelper.avoidWalkingInto(adj.getBlock()) && adj.getBlock() != Blocks.WATER && adj.getBlock() != Blocks.FLOWING_WATER) { // magma sucks
-            return;
-        }
-        if (MovementHelper.canWalkOn(context.bsi(), x + xDiff, y - 1, z + zDiff, adj)) { // don't parkour if we could just traverse (for now)
+        if (y == 256 && !context.allowJumpAt256()) {
             return;
         }
 
+        int xDiff = dir.getXOffset();
+        int zDiff = dir.getZOffset();
         if (!MovementHelper.fullyPassable(context, x + xDiff, y, z + zDiff)) {
+            // most common case at the top -- the adjacent block isn't air
+            return;
+        }
+        IBlockState adj = context.get(x + xDiff, y - 1, z + zDiff);
+        if (MovementHelper.canWalkOn(context.bsi(), x + xDiff, y - 1, z + zDiff, adj)) { // don't parkour if we could just traverse (for now)
+            // second most common case -- we could just traverse not parkour
+            return;
+        }
+        if (MovementHelper.avoidWalkingInto(adj.getBlock()) && adj.getBlock() != Blocks.WATER && adj.getBlock() != Blocks.FLOWING_WATER) { // magma sucks
             return;
         }
         if (!MovementHelper.fullyPassable(context, x + xDiff, y + 1, z + zDiff)) {
@@ -94,6 +90,10 @@ public class MovementParkour extends Movement {
         if (!MovementHelper.fullyPassable(context, x, y + 2, z)) {
             return;
         }
+        IBlockState standingOn = context.get(x, y - 1, z);
+        if (standingOn.getBlock() == Blocks.VINE || standingOn.getBlock() == Blocks.LADDER || standingOn.getBlock() instanceof BlockStairs || MovementHelper.isBottomSlab(standingOn)) {
+            return;
+        }
         int maxJump;
         if (standingOn.getBlock() == Blocks.SOUL_SAND) {
             maxJump = 2; // 1 block gap
@@ -122,29 +122,26 @@ public class MovementParkour extends Movement {
         if (maxJump != 4) {
             return;
         }
-        if (!Baritone.settings().allowParkourPlace.get()) {
-            return;
-        }
-        if (!Baritone.settings().allowPlace.get()) {
-            Helper.HELPER.logDirect("allowParkourPlace enabled but allowPlace disabled?");
+        if (!context.allowParkourPlace()) {
             return;
         }
         int destX = x + 4 * xDiff;
         int destZ = z + 4 * zDiff;
-        IBlockState toPlace = context.get(destX, y - 1, destZ);
         if (!context.canPlaceThrowawayAt(destX, y - 1, destZ)) {
             return;
         }
-        if (toPlace.getBlock() != Blocks.AIR && !MovementHelper.isWater(toPlace.getBlock()) && !MovementHelper.isReplacable(destX, y - 1, destZ, toPlace, context.world())) {
+        IBlockState toReplace = context.get(destX, y - 1, destZ);
+        if (!MovementHelper.isReplacable(destX, y - 1, destZ, toReplace, context.bsi())) {
             return;
         }
         for (int i = 0; i < 5; i++) {
             int againstX = destX + HORIZONTALS_BUT_ALSO_DOWN____SO_EVERY_DIRECTION_EXCEPT_UP[i].getXOffset();
+            int againstY = y - 1 + HORIZONTALS_BUT_ALSO_DOWN____SO_EVERY_DIRECTION_EXCEPT_UP[i].getYOffset();
             int againstZ = destZ + HORIZONTALS_BUT_ALSO_DOWN____SO_EVERY_DIRECTION_EXCEPT_UP[i].getZOffset();
             if (againstX == x + xDiff * 3 && againstZ == z + zDiff * 3) { // we can't turn around that fast
                 continue;
             }
-            if (MovementHelper.canPlaceAgainst(context.bsi(), againstX, y - 1, againstZ)) {
+            if (MovementHelper.canPlaceAgainst(context.bsi(), againstX, againstY, againstZ)) {
                 res.x = destX;
                 res.y = y;
                 res.z = destZ;
@@ -215,7 +212,7 @@ public class MovementParkour extends Movement {
 
                 if (!MovementHelper.canWalkOn(ctx, dest.down()) && !ctx.player().onGround) {
                     BlockPos positionToPlace = dest.down();
-                    for (int i = 0; i < 5; i++) {
+                    for (int i = 4; i >= 0; i--) { // go in the opposite order to check DOWN before all horizontals -- down is preferable because you don't have to look to the side while in midair, which could mess up the trajectory
                         BlockPos against1 = positionToPlace.offset(HORIZONTALS_BUT_ALSO_DOWN____SO_EVERY_DIRECTION_EXCEPT_UP[i]);
                         if (against1.up().equals(src.offset(direction, 3))) { // we can't turn around that fast
                             continue;
@@ -231,15 +228,16 @@ public class MovementParkour extends Movement {
                             RayTraceResult res = RayTraceUtils.rayTraceTowards(ctx.player(), place, ctx.playerController().getBlockReachDistance());
                             if (res != null && res.typeOfHit == RayTraceResult.Type.BLOCK && res.getBlockPos().equals(against1) && res.getBlockPos().offset(res.sideHit).equals(dest.down())) {
                                 state.setTarget(new MovementState.MovementTarget(place, true));
+                                break;
                             }
-                            ctx.getSelectedBlock().ifPresent(selectedBlock -> {
-                                EnumFacing side = ctx.objectMouseOver().sideHit;
-                                if (Objects.equals(selectedBlock, against1) && selectedBlock.offset(side).equals(dest.down())) {
-                                    state.setInput(Input.CLICK_RIGHT, true);
-                                }
-                            });
                         }
                     }
+                    ctx.getSelectedBlock().ifPresent(selectedBlock -> {
+                        EnumFacing side = ctx.objectMouseOver().sideHit;
+                        if (MovementHelper.canPlaceAgainst(ctx, selectedBlock) && selectedBlock.offset(side).equals(dest.down())) {
+                            state.setInput(Input.CLICK_RIGHT, true);
+                        }
+                    });
                 }
                 if (dist == 3) { // this is a 2 block gap, dest = src + direction * 3
                     double xDiff = (src.x + 0.5) - ctx.player().posX;

src/main/java/baritone/pathing/movement/movements/MovementPillar.java

@@ -47,33 +47,39 @@ public class MovementPillar extends Movement {
     }
 
     public static double cost(CalculationContext context, int x, int y, int z) {
-        Block fromDown = context.get(x, y, z).getBlock();
-        boolean ladder = fromDown instanceof BlockLadder || fromDown instanceof BlockVine;
-        IBlockState fromDownDown = context.get(x, y - 1, z);
+        Block from = context.get(x, y, z).getBlock();
+        boolean ladder = from == Blocks.LADDER || from == Blocks.VINE;
+        IBlockState fromDown = context.get(x, y - 1, z);
         if (!ladder) {
-            if (fromDownDown.getBlock() instanceof BlockLadder || fromDownDown.getBlock() instanceof BlockVine) {
-                return COST_INF;
+            if (fromDown.getBlock() == Blocks.LADDER || fromDown.getBlock() == Blocks.VINE) {
+                return COST_INF; // can't pillar from a ladder or vine onto something that isn't also climbable
             }
-            if (fromDownDown.getBlock() instanceof BlockSlab && !((BlockSlab) fromDownDown.getBlock()).isDouble() && fromDownDown.getValue(BlockSlab.HALF) == BlockSlab.EnumBlockHalf.BOTTOM) {
+            if (fromDown.getBlock() instanceof BlockSlab && !((BlockSlab) fromDown.getBlock()).isDouble() && fromDown.getValue(BlockSlab.HALF) == BlockSlab.EnumBlockHalf.BOTTOM) {
                 return COST_INF; // can't pillar up from a bottom slab onto a non ladder
             }
         }
-        if (fromDown instanceof BlockVine && !hasAgainst(context, x, y, z)) {
+        if (from instanceof BlockVine && !hasAgainst(context, x, y, z)) { // TODO this vine can't be climbed, but we could place a pillar still since vines are replacable, no? perhaps the pillar jump would be impossible because of the slowdown actually.
             return COST_INF;
         }
         IBlockState toBreak = context.get(x, y + 2, z);
         Block toBreakBlock = toBreak.getBlock();
-        if (toBreakBlock instanceof BlockFenceGate) {
+        if (toBreakBlock instanceof BlockFenceGate) { // see issue #172
             return COST_INF;
         }
         Block srcUp = null;
-        if (MovementHelper.isWater(toBreakBlock) && MovementHelper.isWater(fromDown)) {
+        if (MovementHelper.isWater(toBreakBlock) && MovementHelper.isWater(from)) { // TODO should this also be allowed if toBreakBlock is air?
             srcUp = context.get(x, y + 1, z).getBlock();
             if (MovementHelper.isWater(srcUp)) {
-                return LADDER_UP_ONE_COST;
+                return LADDER_UP_ONE_COST; // allow ascending pillars of water, but only if we're already in one
             }
         }
-        if (!ladder && !context.canPlaceThrowawayAt(x, y, z)) {
+        if (!ladder && !context.canPlaceThrowawayAt(x, y, z)) { // we need to place a block where we started to jump on it
+            return COST_INF;
+        }
+        if (from instanceof BlockLiquid || (fromDown.getBlock() instanceof BlockLiquid && context.assumeWalkOnWater())) {
+            // otherwise, if we're standing in water, we cannot pillar
+            // if we're standing on water and assumeWalkOnWater is true, we cannot pillar
+            // if we're standing on water and assumeWalkOnWater is false, we must have ascended to here, or sneak backplaced, so it is possible to pillar again
             return COST_INF;
         }
         double hardness = MovementHelper.getMiningDurationTicks(context, x, y + 2, z, toBreak, true);
@@ -81,10 +87,10 @@ public class MovementPillar extends Movement {
             return COST_INF;
         }
         if (hardness != 0) {
-            if (toBreakBlock instanceof BlockLadder || toBreakBlock instanceof BlockVine) {
+            if (toBreakBlock == Blocks.LADDER || toBreakBlock == Blocks.VINE) {
                 hardness = 0; // we won't actually need to break the ladder / vine because we're going to use it
             } else {
-                IBlockState check = context.get(x, y + 3, z);
+                IBlockState check = context.get(x, y + 3, z); // the block on top of the one we're going to break, could it fall on us?
                 if (check.getBlock() instanceof BlockFalling) {
                     // see MovementAscend's identical check for breaking a falling block above our head
                     if (srcUp == null) {
@@ -103,9 +109,6 @@ public class MovementPillar extends Movement {
                 //}
             }
         }
-        if (fromDown instanceof BlockLiquid || fromDownDown.getBlock() instanceof BlockLiquid) {//can't pillar on water or in water
-            return COST_INF;
-        }
         if (ladder) {
             return LADDER_UP_ONE_COST + hardness * 5;
         } else {

src/main/java/baritone/pathing/movement/movements/MovementTraverse.java

@@ -80,11 +80,11 @@ public class MovementTraverse extends Movement {
                     WC += (WALK_ONE_OVER_SOUL_SAND_COST - WALK_ONE_BLOCK_COST) / 2;
                 }
             }
-            double hardness1 = MovementHelper.getMiningDurationTicks(context, destX, y + 1, destZ, pb0, true);
+            double hardness1 = MovementHelper.getMiningDurationTicks(context, destX, y, destZ, pb1, false);
             if (hardness1 >= COST_INF) {
                 return COST_INF;
             }
-            double hardness2 = MovementHelper.getMiningDurationTicks(context, destX, y, destZ, pb1, false);
+            double hardness2 = MovementHelper.getMiningDurationTicks(context, destX, y + 1, destZ, pb0, true); // only include falling on the upper block to break
             if (hardness1 == 0 && hardness2 == 0) {
                 if (!water && context.canSprint()) {
                     // If there's nothing in the way, and this isn't water, and we aren't sneak placing
@@ -103,42 +103,43 @@ public class MovementTraverse extends Movement {
             if (srcDown == Blocks.LADDER || srcDown == Blocks.VINE) {
                 return COST_INF;
             }
-            if (destOn.getBlock().equals(Blocks.AIR) || MovementHelper.isReplacable(destX, y - 1, destZ, destOn, context.world())) {
+            if (MovementHelper.isReplacable(destX, y - 1, destZ, destOn, context.bsi())) {
                 boolean throughWater = MovementHelper.isWater(pb0.getBlock()) || MovementHelper.isWater(pb1.getBlock());
                 if (MovementHelper.isWater(destOn.getBlock()) && throughWater) {
+                    // this happens when assume walk on water is true and this is a traverse in water, which isn't allowed
                     return COST_INF;
                 }
                 if (!context.canPlaceThrowawayAt(destX, y - 1, destZ)) {
                     return COST_INF;
                 }
-                double hardness1 = MovementHelper.getMiningDurationTicks(context, destX, y, destZ, pb0, false);
+                double hardness1 = MovementHelper.getMiningDurationTicks(context, destX, y, destZ, pb1, false);
                 if (hardness1 >= COST_INF) {
                     return COST_INF;
                 }
-                double hardness2 = MovementHelper.getMiningDurationTicks(context, destX, y + 1, destZ, pb1, true);
-
+                double hardness2 = MovementHelper.getMiningDurationTicks(context, destX, y + 1, destZ, pb0, true); // only include falling on the upper block to break
                 double WC = throughWater ? context.waterWalkSpeed() : WALK_ONE_BLOCK_COST;
-                for (int i = 0; i < 4; i++) {
-                    int againstX = destX + HORIZONTALS[i].getXOffset();
-                    int againstZ = destZ + HORIZONTALS[i].getZOffset();
-                    if (againstX == x && againstZ == z) {
+                for (int i = 0; i < 5; i++) {
+                    int againstX = destX + HORIZONTALS_BUT_ALSO_DOWN____SO_EVERY_DIRECTION_EXCEPT_UP[i].getXOffset();
+                    int againstY = y - 1 + HORIZONTALS_BUT_ALSO_DOWN____SO_EVERY_DIRECTION_EXCEPT_UP[i].getYOffset();
+                    int againstZ = destZ + HORIZONTALS_BUT_ALSO_DOWN____SO_EVERY_DIRECTION_EXCEPT_UP[i].getZOffset();
+                    if (againstX == x && againstZ == z) { // this would be a backplace
                         continue;
                     }
-                    if (MovementHelper.canPlaceAgainst(context.bsi(), againstX, y - 1, againstZ)) {
+                    if (MovementHelper.canPlaceAgainst(context.bsi(), againstX, againstY, againstZ)) { // found a side place option
                         return WC + context.placeBlockCost() + hardness1 + hardness2;
                     }
                 }
+                // now that we've checked all possible directions to side place, we actually need to backplace
                 if (srcDown == Blocks.SOUL_SAND || (srcDown instanceof BlockSlab && !((BlockSlab) srcDown).isDouble())) {
                     return COST_INF; // can't sneak and backplace against soul sand or half slabs =/
                 }
                 if (srcDown == Blocks.FLOWING_WATER || srcDown == Blocks.WATER) {
                     return COST_INF; // this is obviously impossible
                 }
-                WC = WC * SNEAK_ONE_BLOCK_COST / WALK_ONE_BLOCK_COST;//since we are placing, we are sneaking
+                WC = WC * SNEAK_ONE_BLOCK_COST / WALK_ONE_BLOCK_COST;//since we are sneak backplacing, we are sneaking lol
                 return WC + context.placeBlockCost() + hardness1 + hardness2;
             }
             return COST_INF;
-            // Out.log("Can't walk on " + Baritone.get(positionsToPlace[0]).getBlock());
         }
     }
 
@@ -241,8 +242,8 @@ public class MovementTraverse extends Movement {
             return state;
         } else {
             wasTheBridgeBlockAlwaysThere = false;
-            for (int i = 0; i < 4; i++) {
-                BlockPos against1 = dest.offset(HORIZONTALS[i]);
+            for (int i = 0; i < 5; i++) {
+                BlockPos against1 = dest.offset(HORIZONTALS_BUT_ALSO_DOWN____SO_EVERY_DIRECTION_EXCEPT_UP[i]);
                 if (against1.equals(src)) {
                     continue;
                 }

src/main/java/baritone/pathing/path/PathExecutor.java

@@ -30,10 +30,12 @@ import baritone.api.utils.input.Input;
 import baritone.behavior.PathingBehavior;
 import baritone.pathing.calc.AbstractNodeCostSearch;
 import baritone.pathing.movement.CalculationContext;
+import baritone.pathing.movement.Movement;
 import baritone.pathing.movement.MovementHelper;
 import baritone.pathing.movement.movements.*;
 import baritone.utils.BlockStateInterface;
 import baritone.utils.Helper;
+import net.minecraft.block.BlockLiquid;
 import net.minecraft.init.Blocks;
 import net.minecraft.util.Tuple;
 import net.minecraft.util.math.BlockPos;
@@ -186,22 +188,23 @@ public class PathExecutor implements IPathExecutor, Helper {
             }
         }*/
         //long start = System.nanoTime() / 1000000L;
+        BlockStateInterface bsi = new BlockStateInterface(ctx);
         for (int i = pathPosition - 10; i < pathPosition + 10; i++) {
             if (i < 0 || i >= path.movements().size()) {
                 continue;
             }
-            IMovement m = path.movements().get(i);
-            HashSet<BlockPos> prevBreak = new HashSet<>(m.toBreak());
-            HashSet<BlockPos> prevPlace = new HashSet<>(m.toPlace());
-            HashSet<BlockPos> prevWalkInto = new HashSet<>(m.toWalkInto());
+            Movement m = (Movement) path.movements().get(i);
+            HashSet<BlockPos> prevBreak = new HashSet<>(m.toBreak(bsi));
+            HashSet<BlockPos> prevPlace = new HashSet<>(m.toPlace(bsi));
+            HashSet<BlockPos> prevWalkInto = new HashSet<>(m.toWalkInto(bsi));
             m.resetBlockCache();
-            if (!prevBreak.equals(new HashSet<>(m.toBreak()))) {
+            if (!prevBreak.equals(new HashSet<>(m.toBreak(bsi)))) {
                 recalcBP = true;
             }
-            if (!prevPlace.equals(new HashSet<>(m.toPlace()))) {
+            if (!prevPlace.equals(new HashSet<>(m.toPlace(bsi)))) {
                 recalcBP = true;
             }
-            if (!prevWalkInto.equals(new HashSet<>(m.toWalkInto()))) {
+            if (!prevWalkInto.equals(new HashSet<>(m.toWalkInto(bsi)))) {
                 recalcBP = true;
             }
         }
@@ -210,9 +213,10 @@ public class PathExecutor implements IPathExecutor, Helper {
             HashSet<BlockPos> newPlace = new HashSet<>();
             HashSet<BlockPos> newWalkInto = new HashSet<>();
             for (int i = pathPosition; i < path.movements().size(); i++) {
-                newBreak.addAll(path.movements().get(i).toBreak());
-                newPlace.addAll(path.movements().get(i).toPlace());
-                newWalkInto.addAll(path.movements().get(i).toWalkInto());
+                Movement movement = (Movement) path.movements().get(i);
+                newBreak.addAll(movement.toBreak(bsi));
+                newPlace.addAll(movement.toPlace(bsi));
+                newWalkInto.addAll(movement.toWalkInto(bsi));
             }
             toBreak = newBreak;
             toPlace = newPlace;
@@ -344,13 +348,26 @@ public class PathExecutor implements IPathExecutor, Helper {
 
     /**
      * Regardless of current path position, snap to the current player feet if possible
+     *
+     * @return Whether or not it was possible to snap to the current player feet
      */
     public boolean snipsnapifpossible() {
+        if (!ctx.player().onGround && !(ctx.world().getBlockState(ctx.playerFeet()).getBlock() instanceof BlockLiquid)) {
+            // if we're falling in the air, and not in water, don't splice
+            return false;
+        } else {
+            // we are either onGround or in liquid
+            if (ctx.player().motionY < -0.1) {
+                // if we are strictly moving downwards (not stationary)
+                // we could be falling through water, which could be unsafe to splice
+                return false; // so don't
+            }
+        }
         int index = path.positions().indexOf(ctx.playerFeet());
         if (index == -1) {
             return false;
         }
-        pathPosition = index;
+        pathPosition = index; // jump directly to current position
         clearKeys();
         return true;
     }

src/main/java/baritone/pathing/path/SplicedPath.java

@@ -62,13 +62,15 @@ public class SplicedPath extends PathBase {
         return numNodes;
     }
 
+    @Override
+    public int length() {
+        return path.size();
+    }
+
     public static Optional<SplicedPath> trySplice(IPath first, IPath second, boolean allowOverlapCutoff) {
         if (second == null || first == null) {
             return Optional.empty();
         }
-        if (!Objects.equals(first.getGoal(), second.getGoal())) {
-            return Optional.empty();
-        }
         if (!first.getDest().equals(second.getSrc())) {
             return Optional.empty();
         }
@@ -77,6 +79,7 @@ public class SplicedPath extends PathBase {
         for (int i = 0; i < first.length() - 1; i++) { // overlap in the very last element is fine (and required) so only go up to first.length() - 1
             if (secondPos.contains(first.positions().get(i))) {
                 firstPositionInSecond = i;
+                break;
             }
         }
         if (firstPositionInSecond != -1) {
@@ -94,7 +97,7 @@ public class SplicedPath extends PathBase {
         List<IMovement> movements = new ArrayList<>();
         positions.addAll(first.positions().subList(0, firstPositionInSecond + 1));
         movements.addAll(first.movements().subList(0, firstPositionInSecond));
-        
+
         positions.addAll(second.positions().subList(positionInSecond + 1, second.length()));
         movements.addAll(second.movements().subList(positionInSecond, second.length() - 1));
         return Optional.of(new SplicedPath(positions, movements, first.getNumNodesConsidered() + second.getNumNodesConsidered(), first.getGoal()));

src/main/java/baritone/process/CustomGoalProcess.java

@@ -52,7 +52,9 @@ public class CustomGoalProcess extends BaritoneProcessHelper implements ICustomG
     @Override
     public void setGoal(Goal goal) {
         this.goal = goal;
-        this.state = State.GOAL_SET;
+        if (this.state == State.NONE) {
+            this.state = State.GOAL_SET;
+        }
     }
 
     @Override
@@ -74,7 +76,7 @@ public class CustomGoalProcess extends BaritoneProcessHelper implements ICustomG
     public PathingCommand onTick(boolean calcFailed, boolean isSafeToCancel) {
         switch (this.state) {
             case GOAL_SET:
-                if (!baritone.getPathingBehavior().isPathing() && Objects.equals(baritone.getPathingBehavior().getGoal(), this.goal)) {
+                if (!baritone.getPathingBehavior().isPathing() && Objects.equals(baritone.getPathingBehavior().getGoal() + "", this.goal + "")) {
                     this.state = State.NONE;
                 }
                 return new PathingCommand(this.goal, PathingCommandType.CANCEL_AND_SET_GOAL);

src/main/java/baritone/process/GetToBlockProcess.java

@@ -21,19 +21,27 @@ import baritone.Baritone;
 import baritone.api.pathing.goals.Goal;
 import baritone.api.pathing.goals.GoalComposite;
 import baritone.api.pathing.goals.GoalGetToBlock;
+import baritone.api.pathing.goals.GoalTwoBlocks;
 import baritone.api.process.IGetToBlockProcess;
 import baritone.api.process.PathingCommand;
 import baritone.api.process.PathingCommandType;
+import baritone.api.utils.Rotation;
+import baritone.api.utils.RotationUtils;
+import baritone.api.utils.input.Input;
 import baritone.pathing.movement.CalculationContext;
 import baritone.utils.BaritoneProcessHelper;
 import net.minecraft.block.Block;
+import net.minecraft.init.Blocks;
+import net.minecraft.inventory.ContainerPlayer;
 import net.minecraft.util.math.BlockPos;
 
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
+import java.util.Optional;
 
 public class GetToBlockProcess extends BaritoneProcessHelper implements IGetToBlockProcess {
+
     private Block gettingTo;
     private List<BlockPos> knownLocations;
 
@@ -45,8 +53,8 @@ public class GetToBlockProcess extends BaritoneProcessHelper implements IGetToBl
 
     @Override
     public void getToBlock(Block block) {
+        onLostControl();
         gettingTo = block;
-        knownLocations = null;
         rescan(new ArrayList<>(), new CalculationContext(baritone));
     }
 
@@ -77,12 +85,19 @@ public class GetToBlockProcess extends BaritoneProcessHelper implements IGetToBl
         int mineGoalUpdateInterval = Baritone.settings().mineGoalUpdateInterval.get();
         if (mineGoalUpdateInterval != 0 && tickCount++ % mineGoalUpdateInterval == 0) { // big brain
             List<BlockPos> current = new ArrayList<>(knownLocations);
-            CalculationContext context = new CalculationContext(baritone);
+            CalculationContext context = new CalculationContext(baritone, true);
             Baritone.getExecutor().execute(() -> rescan(current, context));
         }
-        Goal goal = new GoalComposite(knownLocations.stream().map(GoalGetToBlock::new).toArray(Goal[]::new));
-        if (goal.isInGoal(ctx.playerFeet())) {
-            onLostControl();
+        Goal goal = new GoalComposite(knownLocations.stream().map(this::createGoal).toArray(Goal[]::new));
+        if (goal.isInGoal(ctx.playerFeet()) && isSafeToCancel) {
+            // we're there
+            if (rightClickOnArrival(gettingTo)) {
+                if (rightClick()) {
+                    onLostControl();
+                }
+            } else {
+                onLostControl();
+            }
         }
         return new PathingCommand(goal, PathingCommandType.REVALIDATE_GOAL_AND_PATH);
     }
@@ -91,6 +106,7 @@ public class GetToBlockProcess extends BaritoneProcessHelper implements IGetToBl
     public void onLostControl() {
         gettingTo = null;
         knownLocations = null;
+        baritone.getInputOverrideHandler().clearAllKeys();
     }
 
     @Override
@@ -101,4 +117,41 @@ public class GetToBlockProcess extends BaritoneProcessHelper implements IGetToBl
     private void rescan(List<BlockPos> known, CalculationContext context) {
         knownLocations = MineProcess.searchWorld(context, Collections.singletonList(gettingTo), 64, known);
     }
+
+    private Goal createGoal(BlockPos pos) {
+        return walkIntoInsteadOfAdjacent(gettingTo) ? new GoalTwoBlocks(pos) : new GoalGetToBlock(pos);
+    }
+
+    private boolean rightClick() {
+        for (BlockPos pos : knownLocations) {
+            Optional<Rotation> reachable = RotationUtils.reachable(ctx.player(), pos, ctx.playerController().getBlockReachDistance());
+            if (reachable.isPresent()) {
+                baritone.getLookBehavior().updateTarget(reachable.get(), true);
+                if (knownLocations.contains(ctx.getSelectedBlock().orElse(null))) {
+                    baritone.getInputOverrideHandler().setInputForceState(Input.CLICK_RIGHT, true); // TODO find some way to right click even if we're in an ESC menu
+                    System.out.println(ctx.player().openContainer);
+                    if (!(ctx.player().openContainer instanceof ContainerPlayer)) {
+                        return true;
+                    }
+                }
+                return false; // trying to right click, will do it next tick or so
+            }
+        }
+        logDirect("Arrived but failed to right click open");
+        return true;
+    }
+
+    private boolean walkIntoInsteadOfAdjacent(Block block) {
+        if (!Baritone.settings().enterPortal.get()) {
+            return false;
+        }
+        return block == Blocks.PORTAL;
+    }
+
+    private boolean rightClickOnArrival(Block block) {
+        if (!Baritone.settings().rightClickContainerOnArrival.get()) {
+            return false;
+        }
+        return block == Blocks.CRAFTING_TABLE || block == Blocks.FURNACE || block == Blocks.ENDER_CHEST || block == Blocks.CHEST || block == Blocks.TRAPPED_CHEST;
+    }
 }

src/main/java/baritone/process/MineProcess.java

@@ -89,7 +89,7 @@ public final class MineProcess extends BaritoneProcessHelper implements IMinePro
         int mineGoalUpdateInterval = Baritone.settings().mineGoalUpdateInterval.get();
         if (mineGoalUpdateInterval != 0 && tickCount++ % mineGoalUpdateInterval == 0) { // big brain
             List<BlockPos> curr = new ArrayList<>(knownOreLocations);
-            CalculationContext context = new CalculationContext(baritone);
+            CalculationContext context = new CalculationContext(baritone, true);
             Baritone.getExecutor().execute(() -> rescan(curr, context));
         }
         if (Baritone.settings().legitMine.get()) {
@@ -210,7 +210,7 @@ public final class MineProcess extends BaritoneProcessHelper implements IMinePro
         //long b = System.currentTimeMillis();
         for (Block m : mining) {
             if (CachedChunk.BLOCKS_TO_KEEP_TRACK_OF.contains(m)) {
-                locs.addAll(ctx.worldData().getCachedWorld().getLocationsOf(ChunkPacker.blockToString(m), 1, ctx.getBaritone().getPlayerContext().playerFeet().getX(), ctx.getBaritone().getPlayerContext().playerFeet().getZ(), 1));
+                locs.addAll(ctx.worldData().getCachedWorld().getLocationsOf(ChunkPacker.blockToString(m), 1, ctx.getBaritone().getPlayerContext().playerFeet().getX(), ctx.getBaritone().getPlayerContext().playerFeet().getZ(), 2));
             } else {
                 uninteresting.add(m);
             }

src/main/java/baritone/utils/BaritoneAutoTest.java

@@ -39,8 +39,8 @@ public class BaritoneAutoTest implements AbstractGameEventListener, Helper {
     public static final boolean ENABLE_AUTO_TEST = "true".equals(System.getenv("BARITONE_AUTO_TEST"));
     private static final long TEST_SEED = -928872506371745L;
     private static final BlockPos STARTING_POSITION = new BlockPos(0, 65, 0);
-    private static final Goal GOAL = new GoalBlock(69, 121, 420);
-    private static final int MAX_TICKS = 3500;
+    private static final Goal GOAL = new GoalBlock(69, 69, 420);
+    private static final int MAX_TICKS = 3300;
 
     /**
      * Called right after the {@link GameSettings} object is created in the {@link Minecraft} instance.

src/main/java/baritone/utils/BlockStateInterface.java

@@ -23,6 +23,7 @@ import baritone.cache.CachedRegion;
 import baritone.cache.WorldData;
 import baritone.utils.accessor.IChunkProviderClient;
 import it.unimi.dsi.fastutil.longs.Long2ObjectMap;
+import it.unimi.dsi.fastutil.longs.Long2ObjectOpenHashMap;
 import net.minecraft.block.Block;
 import net.minecraft.block.state.IBlockState;
 import net.minecraft.client.Minecraft;
@@ -48,12 +49,21 @@ public class BlockStateInterface {
     private static final IBlockState AIR = Blocks.AIR.getDefaultState();
 
     public BlockStateInterface(IPlayerContext ctx) {
-        this(ctx.world(), (WorldData) ctx.worldData());
+        this(ctx, false);
     }
 
-    public BlockStateInterface(World world, WorldData worldData) {
+    public BlockStateInterface(IPlayerContext ctx, boolean copyLoadedChunks) {
+        this(ctx.world(), (WorldData) ctx.worldData(), copyLoadedChunks);
+    }
+
+    public BlockStateInterface(World world, WorldData worldData, boolean copyLoadedChunks) {
         this.worldData = worldData;
-        this.loadedChunks = ((IChunkProviderClient) world.getChunkProvider()).loadedChunks();
+        Long2ObjectMap<Chunk> worldLoaded = ((IChunkProviderClient) world.getChunkProvider()).loadedChunks();
+        if (copyLoadedChunks) {
+            this.loadedChunks = new Long2ObjectOpenHashMap<>(worldLoaded); // make a copy that we can safely access from another thread
+        } else {
+            this.loadedChunks = worldLoaded; // this will only be used on the main thread
+        }
         if (!Minecraft.getMinecraft().isCallingFromMinecraftThread()) {
             throw new IllegalStateException();
         }

src/main/java/baritone/utils/ExampleBaritoneControl.java

@@ -19,6 +19,7 @@ package baritone.utils;
 
 import baritone.Baritone;
 import baritone.api.Settings;
+import baritone.api.cache.IRememberedInventory;
 import baritone.api.cache.IWaypoint;
 import baritone.api.event.events.ChatEvent;
 import baritone.api.pathing.goals.*;
@@ -32,10 +33,12 @@ import baritone.pathing.movement.CalculationContext;
 import baritone.pathing.movement.Movement;
 import baritone.pathing.movement.Moves;
 import baritone.process.CustomGoalProcess;
+import baritone.utils.pathing.SegmentedCalculator;
 import net.minecraft.block.Block;
 import net.minecraft.client.multiplayer.ChunkProviderClient;
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.item.ItemStack;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.world.chunk.Chunk;
 
@@ -198,10 +201,28 @@ public class ExampleBaritoneControl extends Behavior implements Helper {
             } else if (pathingBehavior.isPathing()) {
                 logDirect("Currently executing a path. Please cancel it first.");
             } else {
+                baritone.fitmc();
                 customGoalProcess.setGoalAndPath(pathingBehavior.getGoal());
             }
             return true;
         }
+        if (msg.equals("fullpath")) {
+            if (pathingBehavior.getGoal() == null) {
+                logDirect("No goal.");
+            } else {
+                logDirect("Started segmented calculator");
+                SegmentedCalculator.calculateSegmentsThreaded(pathingBehavior.pathStart(), pathingBehavior.getGoal(), new CalculationContext(baritone, true), ipath -> {
+                    logDirect("Found a path");
+                    logDirect("Ends at " + ipath.getDest());
+                    logDirect("Length " + ipath.length());
+                    logDirect("Estimated time " + ipath.ticksRemainingFrom(0));
+                    pathingBehavior.secretCursedFunctionDoNotCall(ipath); // it's okay when *I* do it
+                }, () -> {
+                    logDirect("Path calculation failed, no path");
+                });
+            }
+            return true;
+        }
         if (msg.equals("repack") || msg.equals("rescan")) {
             ChunkProviderClient cli = (ChunkProviderClient) ctx.world().getChunkProvider();
             int playerChunkX = ctx.playerFeet().getX() >> 4;
@@ -259,6 +280,38 @@ public class ExampleBaritoneControl extends Behavior implements Helper {
             });
             return true;
         }
+        if (msg.equals("reset")) {
+            Baritone.settings().reset();
+            logDirect("Baritone settings reset");
+            return true;
+        }
+        if (msg.equals("echest")) {
+            Optional<List<ItemStack>> contents = baritone.getMemoryBehavior().echest();
+            if (contents.isPresent()) {
+                logDirect("echest contents:");
+                log(contents.get());
+            } else {
+                logDirect("echest contents unknown");
+            }
+            return true;
+        }
+        if (msg.equals("chests")) {
+            System.out.println(baritone.getWorldProvider());
+            System.out.println(baritone.getWorldProvider().getCurrentWorld());
+
+            System.out.println(baritone.getWorldProvider().getCurrentWorld().getContainerMemory());
+
+            System.out.println(baritone.getWorldProvider().getCurrentWorld().getContainerMemory().getRememberedInventories());
+
+            System.out.println(baritone.getWorldProvider().getCurrentWorld().getContainerMemory().getRememberedInventories().entrySet());
+
+            System.out.println(baritone.getWorldProvider().getCurrentWorld().getContainerMemory().getRememberedInventories().entrySet());
+            for (Map.Entry<BlockPos, IRememberedInventory> entry : baritone.getWorldProvider().getCurrentWorld().getContainerMemory().getRememberedInventories().entrySet()) {
+                logDirect(entry.getKey() + "");
+                log(entry.getValue().getContents());
+            }
+            return true;
+        }
         if (msg.startsWith("followplayers")) {
             baritone.getFollowProcess().follow(EntityPlayer.class::isInstance); // O P P A
             logDirect("Following any players");
@@ -468,4 +521,12 @@ public class ExampleBaritoneControl extends Behavior implements Helper {
         }
         return false;
     }
+
+    private void log(List<ItemStack> stacks) {
+        for (ItemStack stack : stacks) {
+            if (!stack.isEmpty()) {
+                logDirect(stack.getCount() + "x " + stack.getDisplayName() + "@" + stack.getItemDamage());
+            }
+        }
+    }
 }

src/main/java/baritone/utils/Helper.java

@@ -47,7 +47,7 @@ public interface Helper {
     /**
      * Send a message to chat only if chatDebug is on
      *
-     * @param message
+     * @param message The message to display in chat
      */
     default void logDebug(String message) {
         if (!Baritone.settings().chatDebug.get()) {
@@ -61,12 +61,12 @@ public interface Helper {
     /**
      * Send a message to chat regardless of chatDebug (should only be used for critically important messages, or as a direct response to a chat command)
      *
-     * @param message
+     * @param message The message to display in chat
      */
     default void logDirect(String message) {
         ITextComponent component = MESSAGE_PREFIX.createCopy();
         component.getStyle().setColor(TextFormatting.GRAY);
         component.appendSibling(new TextComponentString(" " + message));
-        Baritone.settings().logger.get().accept(component);
+        Minecraft.getMinecraft().addScheduledTask(() -> Baritone.settings().logger.get().accept(component));
     }
 }

src/main/java/baritone/utils/PathRenderer.java

@@ -21,10 +21,7 @@ import baritone.Baritone;
 import baritone.api.BaritoneAPI;
 import baritone.api.event.events.RenderEvent;
 import baritone.api.pathing.calc.IPath;
-import baritone.api.pathing.goals.Goal;
-import baritone.api.pathing.goals.GoalComposite;
-import baritone.api.pathing.goals.GoalTwoBlocks;
-import baritone.api.pathing.goals.GoalXZ;
+import baritone.api.pathing.goals.*;
 import baritone.api.utils.BetterBlockPos;
 import baritone.api.utils.interfaces.IGoalRenderPos;
 import baritone.behavior.PathingBehavior;
@@ -33,6 +30,7 @@ import net.minecraft.block.state.IBlockState;
 import net.minecraft.client.renderer.BufferBuilder;
 import net.minecraft.client.renderer.GlStateManager;
 import net.minecraft.client.renderer.Tessellator;
+import net.minecraft.client.renderer.tileentity.TileEntityBeaconRenderer;
 import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
 import net.minecraft.entity.Entity;
 import net.minecraft.init.Blocks;
@@ -282,14 +280,14 @@ public final class PathRenderer implements Helper {
             minZ = goalPos.getZ() + 0.002 - renderPosZ;
             maxZ = goalPos.getZ() + 1 - 0.002 - renderPosZ;
             double y = MathHelper.cos((float) (((float) ((System.nanoTime() / 100000L) % 20000L)) / 20000F * Math.PI * 2));
-            if (goal instanceof GoalTwoBlocks) {
+            if (goal instanceof GoalGetToBlock || goal instanceof GoalTwoBlocks) {
                 y /= 2;
             }
             y1 = 1 + y + goalPos.getY() - renderPosY;
             y2 = 1 - y + goalPos.getY() - renderPosY;
             minY = goalPos.getY() - renderPosY;
             maxY = minY + 2;
-            if (goal instanceof GoalTwoBlocks) {
+            if (goal instanceof GoalGetToBlock || goal instanceof GoalTwoBlocks) {
                 y1 -= 0.5;
                 y2 -= 0.5;
                 maxY--;
@@ -297,6 +295,31 @@ public final class PathRenderer implements Helper {
         } else if (goal instanceof GoalXZ) {
             GoalXZ goalPos = (GoalXZ) goal;
 
+            if (Baritone.settings().renderGoalXZBeacon.get()) {
+                mc.getTextureManager().bindTexture(TileEntityBeaconRenderer.TEXTURE_BEACON_BEAM);
+
+                if (Baritone.settings().renderGoalIgnoreDepth.get()) {
+                    GlStateManager.disableDepth();
+                }
+
+                TileEntityBeaconRenderer.renderBeamSegment(
+                        goalPos.getX() - renderPosX,
+                        -renderPosY,
+                        goalPos.getZ() - renderPosZ,
+                        partialTicks,
+                        1.0,
+                        player.world.getTotalWorldTime(),
+                        0,
+                        256,
+                        color.getColorComponents(null)
+                );
+
+                if (Baritone.settings().renderGoalIgnoreDepth.get()) {
+                    GlStateManager.enableDepth();
+                }
+                return;
+            }
+
             minX = goalPos.getX() + 0.002 - renderPosX;
             maxX = goalPos.getX() + 1 - 0.002 - renderPosX;
             minZ = goalPos.getZ() + 0.002 - renderPosZ;

src/main/java/baritone/utils/ToolSet.java

@@ -138,7 +138,7 @@ public class ToolSet {
      * @param state the blockstate to be mined
      * @return how long it would take in ticks
      */
-    private double calculateStrVsBlock(ItemStack item, IBlockState state) {
+    public static double calculateStrVsBlock(ItemStack item, IBlockState state) {
         float hardness = state.getBlockHardness(null, null);
         if (hardness < 0) {
             return -1;

src/main/java/baritone/utils/pathing/Avoidance.java

@@ -0,0 +1,87 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.utils.pathing;
+
+import baritone.Baritone;
+import baritone.api.utils.BetterBlockPos;
+import baritone.api.utils.IPlayerContext;
+import it.unimi.dsi.fastutil.longs.Long2DoubleOpenHashMap;
+import net.minecraft.entity.monster.EntityMob;
+import net.minecraft.util.math.BlockPos;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+public class Avoidance {
+    private final int centerX;
+    private final int centerY;
+    private final int centerZ;
+    private final double coefficient;
+    private final int radius;
+    private final int radiusSq;
+
+    public Avoidance(BlockPos center, double coefficient, int radius) {
+        this(center.getX(), center.getY(), center.getZ(), coefficient, radius);
+    }
+
+    public Avoidance(int centerX, int centerY, int centerZ, double coefficient, int radius) {
+        this.centerX = centerX;
+        this.centerY = centerY;
+        this.centerZ = centerZ;
+        this.coefficient = coefficient;
+        this.radius = radius;
+        this.radiusSq = radius * radius;
+    }
+
+    public double coefficient(int x, int y, int z) {
+        int xDiff = x - centerX;
+        int yDiff = y - centerY;
+        int zDiff = z - centerZ;
+        return xDiff * xDiff + yDiff * yDiff + zDiff * zDiff <= radiusSq ? coefficient : 1.0D;
+    }
+
+    public static List<Avoidance> create(IPlayerContext ctx) {
+        if (!Baritone.settings().avoidance.get()) {
+            return Collections.emptyList();
+        }
+        List<Avoidance> res = new ArrayList<>();
+        double mobSpawnerCoeff = Baritone.settings().mobSpawnerAvoidanceCoefficient.get();
+        double mobCoeff = Baritone.settings().mobAvoidanceCoefficient.get();
+        if (mobSpawnerCoeff != 1.0D) {
+            ctx.worldData().getCachedWorld().getLocationsOf("mob_spawner", 1, ctx.playerFeet().x, ctx.playerFeet().z, 2).forEach(mobspawner -> res.add(new Avoidance(mobspawner, mobSpawnerCoeff, Baritone.settings().mobSpawnerAvoidanceRadius.get())));
+        }
+        if (mobCoeff != 1.0D) {
+            ctx.world().loadedEntityList.stream().filter(entity -> entity instanceof EntityMob).forEach(entity -> res.add(new Avoidance(new BlockPos(entity), mobCoeff, Baritone.settings().mobAvoidanceRadius.get())));
+        }
+        return res;
+    }
+
+    public void applySpherical(Long2DoubleOpenHashMap map) {
+        for (int x = -radius; x <= radius; x++) {
+            for (int y = -radius; y <= radius; y++) {
+                for (int z = -radius; z <= radius; z++) {
+                    if (x * x + y * y + z * z <= radius * radius) {
+                        long hash = BetterBlockPos.longHash(centerX + x, centerY + y, centerZ + z);
+                        map.put(hash, map.get(hash) * coefficient);
+                    }
+                }
+            }
+        }
+    }
+}

src/main/java/baritone/utils/pathing/Favoring.java

@@ -0,0 +1,57 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.utils.pathing;
+
+import baritone.Baritone;
+import baritone.api.pathing.calc.IPath;
+import baritone.api.utils.BetterBlockPos;
+import baritone.api.utils.IPlayerContext;
+import it.unimi.dsi.fastutil.longs.Long2DoubleOpenHashMap;
+
+import java.util.List;
+
+public final class Favoring {
+    private List<Avoidance> avoidances;
+    private final Long2DoubleOpenHashMap favorings;
+
+    public Favoring(IPlayerContext ctx, IPath previous) {
+        this(previous);
+        avoidances = Avoidance.create(ctx);
+        for (Avoidance avoid : avoidances) {
+            avoid.applySpherical(favorings);
+        }
+        System.out.println("Favoring size: " + favorings.size());
+    }
+
+    public Favoring(IPath previous) { // create one just from previous path, no mob avoidances
+        favorings = new Long2DoubleOpenHashMap();
+        favorings.defaultReturnValue(1.0D);
+        double coeff = Baritone.settings().backtrackCostFavoringCoefficient.get();
+        if (coeff != 1D && previous != null) {
+            previous.positions().forEach(pos -> favorings.put(BetterBlockPos.longHash(pos), coeff));
+        }
+    }
+
+    public boolean isEmpty() {
+        return favorings.isEmpty();
+    }
+
+    public double calculate(long hash) {
+        return favorings.get(hash);
+    }
+}

src/main/java/baritone/utils/pathing/PathBase.java

@@ -21,16 +21,16 @@ import baritone.api.BaritoneAPI;
 import baritone.api.pathing.calc.IPath;
 import baritone.api.pathing.goals.Goal;
 import baritone.pathing.path.CutoffPath;
+import baritone.utils.BlockStateInterface;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.world.World;
-import net.minecraft.world.chunk.EmptyChunk;
 
 public abstract class PathBase implements IPath {
     @Override
-    public IPath cutoffAtLoadedChunks(World world) {
+    public PathBase cutoffAtLoadedChunks(Object bsi0) {
+        BlockStateInterface bsi = (BlockStateInterface) bsi0;
         for (int i = 0; i < positions().size(); i++) {
             BlockPos pos = positions().get(i);
-            if (world.getChunk(pos) instanceof EmptyChunk) {
+            if (!bsi.worldContainsLoadedChunk(pos.getX(), pos.getZ())) {
                 return new CutoffPath(this, i);
             }
         }
@@ -38,15 +38,16 @@ public abstract class PathBase implements IPath {
     }
 
     @Override
-    public IPath staticCutoff(Goal destination) {
-        if (length() < BaritoneAPI.getSettings().pathCutoffMinimumLength.get()) {
+    public PathBase staticCutoff(Goal destination) {
+        int min = BaritoneAPI.getSettings().pathCutoffMinimumLength.get();
+        if (length() < min) {
             return this;
         }
         if (destination == null || destination.isInGoal(getDest())) {
             return this;
         }
         double factor = BaritoneAPI.getSettings().pathCutoffFactor.get();
-        int newLength = (int) ((length() - 1) * factor);
+        int newLength = (int) ((length() - min) * factor) + min - 1;
         return new CutoffPath(this, newLength);
     }
 }

src/main/java/baritone/utils/pathing/SegmentedCalculator.java

@@ -22,10 +22,12 @@ import baritone.api.pathing.calc.IPath;
 import baritone.api.pathing.goals.Goal;
 import baritone.api.utils.BetterBlockPos;
 import baritone.api.utils.PathCalculationResult;
-import baritone.behavior.PathingBehavior;
+import baritone.cache.CachedWorld;
+import baritone.pathing.calc.AStarPathFinder;
 import baritone.pathing.calc.AbstractNodeCostSearch;
 import baritone.pathing.movement.CalculationContext;
 import baritone.pathing.path.SplicedPath;
+import net.minecraft.util.EnumFacing;
 
 import java.util.Optional;
 import java.util.function.Consumer;
@@ -52,8 +54,8 @@ public class SegmentedCalculator {
             PathCalculationResult result = segment(soFar);
             switch (result.getType()) {
                 case SUCCESS_SEGMENT:
+                case SUCCESS_TO_GOAL:
                     break;
-                case SUCCESS_TO_GOAL: // if we've gotten all the way to the goal, we're done
                 case FAILURE: // if path calculation failed, we're done
                 case EXCEPTION: // if path calculation threw an exception, we're done
                     return soFar;
@@ -62,13 +64,30 @@ public class SegmentedCalculator {
             }
             IPath segment = result.getPath().get(); // path calculation result type is SUCCESS_SEGMENT, so the path must be present
             IPath combined = soFar.map(previous -> (IPath) SplicedPath.trySplice(previous, segment, true).get()).orElse(segment);
+            loadAdjacent(combined.getDest().getX(), combined.getDest().getZ());
             soFar = Optional.of(combined);
+            if (result.getType() == PathCalculationResult.Type.SUCCESS_TO_GOAL) {
+                return soFar;
+            }
+        }
+    }
+
+    private void loadAdjacent(int blockX, int blockZ) {
+        BetterBlockPos bp = new BetterBlockPos(blockX, 64, blockZ);
+        CachedWorld cached = (CachedWorld) context.getBaritone().getPlayerContext().worldData().getCachedWorld();
+        for (int i = 0; i < 4; i++) {
+            // pathing thread is not allowed to load new cached regions from disk
+            // it checks if every chunk is loaded before getting blocks from it
+            // so you see path segments ending at multiples of 512 (plus or minus one) on either x or z axis
+            // this loads every adjacent chunk to the segment end, so it can continue into the next cached region
+            BetterBlockPos toLoad = bp.offset(EnumFacing.byHorizontalIndex(i), 16);
+            cached.tryLoadFromDisk(toLoad.x >> 9, toLoad.z >> 9);
         }
     }
 
     private PathCalculationResult segment(Optional<IPath> previous) {
         BetterBlockPos segmentStart = previous.map(IPath::getDest).orElse(start); // <-- e p i c
-        AbstractNodeCostSearch search = PathingBehavior.createPathfinder(segmentStart, goal, previous.orElse(null), context);
+        AbstractNodeCostSearch search = new AStarPathFinder(segmentStart.x, segmentStart.y, segmentStart.z, goal, new Favoring(previous.orElse(null)), context); // this is on another thread, so cannot include mob avoidances.
         return search.calculate(Baritone.settings().primaryTimeoutMS.get(), Baritone.settings().failureTimeoutMS.get()); // use normal time settings, not the plan ahead settings, so as to not overwhelm the computer
     }
 

src/main/java/baritone/utils/resource/BaritoneResourcePack.java

@@ -0,0 +1,70 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.utils.resource;
+
+import net.minecraft.client.resources.IResourcePack;
+import net.minecraft.client.resources.data.IMetadataSection;
+import net.minecraft.client.resources.data.MetadataSerializer;
+import net.minecraft.util.ResourceLocation;
+
+import java.awt.image.BufferedImage;
+import java.io.InputStream;
+import java.util.Collections;
+import java.util.Set;
+
+/**
+ * @author Brady
+ * @since 12/15/2018
+ */
+@SuppressWarnings("NullableProblems")
+public class BaritoneResourcePack implements IResourcePack {
+
+    @Override
+    public InputStream getInputStream(ResourceLocation location) {
+        return getResourceStream(location);
+    }
+
+    @Override
+    public boolean resourceExists(ResourceLocation location) {
+        return getResourceStream(location) != null;
+    }
+
+    @Override
+    public Set<String> getResourceDomains() {
+        return Collections.singleton("baritone");
+    }
+
+    @Override
+    public <T extends IMetadataSection> T getPackMetadata(MetadataSerializer metadataSerializer, String metadataSectionName) {
+        return null;
+    }
+
+    @Override
+    public BufferedImage getPackImage() {
+        return null;
+    }
+
+    @Override
+    public String getPackName() {
+        return "baritone";
+    }
+
+    private InputStream getResourceStream(ResourceLocation location) {
+        return BaritoneResourcePack.class.getResourceAsStream("/assets/" + location.getNamespace() + "/" + location.getPath());
+    }
+}

src/main/resources/assets/baritone/sounds.json

@@ -0,0 +1,10 @@
+{
+  "fitmc_intro": {
+    "category": "master",
+    "sounds": [
+      {
+        "name": "baritone:fitmc/intro"
+      }
+    ]
+  }
+}