something is fishy with the getAllSchematicPlacements() methode but i want my progress saved

src/schematica_api/java/fi/dy/masa/litematica/Litematica.java

@@ -0,0 +1,21 @@
+/*
+ * 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 fi.dy.masa.litematica;
+
+public class Litematica {
+}

src/schematica_api/java/fi/dy/masa/litematica/data/DataManager.java

@@ -0,0 +1,31 @@
+/*
+ * 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 fi.dy.masa.litematica.data;
+
+import fi.dy.masa.litematica.schematic.placement.SchematicPlacementManager;
+
+public class DataManager {
+    public static final DataManager INSTANCE = new DataManager();
+    private final SchematicPlacementManager schematicPlacementManager = new SchematicPlacementManager();
+    private static DataManager getInstance() {
+        return INSTANCE;
+    }
+    public static SchematicPlacementManager getSchematicPlacementManager() {
+        return getInstance().schematicPlacementManager;
+    }
+}

src/schematica_api/java/fi/dy/masa/litematica/schematic/placement/SchematicPlacement.java

@@ -0,0 +1,22 @@
+/*
+ * 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 fi.dy.masa.litematica.schematic.placement;
+
+public class SchematicPlacement extends SchematicPlacementUnloaded {
+
+}

src/schematica_api/java/fi/dy/masa/litematica/schematic/placement/SchematicPlacementManager.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 fi.dy.masa.litematica.schematic.placement;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class SchematicPlacementManager {
+    private final List<SchematicPlacement> schematicPlacements = new ArrayList<>();
+
+    public List<SchematicPlacement> getAllSchematicPlacements() {
+        return schematicPlacements;
+    }
+}

src/schematica_api/java/fi/dy/masa/litematica/schematic/placement/SchematicPlacementUnloaded.java

@@ -0,0 +1,39 @@
+/*
+ * 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 fi.dy.masa.litematica.schematic.placement;
+
+import net.minecraft.util.math.BlockPos;
+
+import javax.annotation.Nullable;
+import java.io.File;
+
+public class SchematicPlacementUnloaded {
+    protected String name = "?";
+    @Nullable protected File schematicFile;
+    protected BlockPos origin = BlockPos.ORIGIN;
+    public String getName() {
+        return this.name;
+    }
+    @Nullable
+    public File getSchematicFile() {
+        return this.schematicFile;
+    }
+    public BlockPos getOrigin() {
+        return this.origin;
+    }
+}