WIP

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

@@ -147,7 +147,7 @@ public enum WorldScanner implements IWorldScanner {
         boolean foundWithinY = false;
         for (int y0 : coordinateIterationOrder) {
             LevelChunkSection section = chunkInternalStorageArray[y0];
-            if (section == null || LevelChunkSection.isEmpty(section)) {
+            if (section == null || section.hasOnlyAir()) {
                 continue;
             }
             int yReal = y0 << 4;

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

@@ -169,7 +169,7 @@ public class BlockStateInterface {
     // get the block at x,y,z from this chunk WITHOUT creating a single blockpos object
     public static BlockState getFromChunk(LevelChunk chunk, int x, int y, int z) {
         LevelChunkSection section = chunk.getSections()[y >> 4];
-        if (LevelChunkSection.isEmpty(section)) {
+        if (section.hasOnlyAir()) {
             return AIR;
         }
         return section.getBlockState(x & 15, y & 15, z & 15);