Merge pull request #225 from Patbox/26.1

Add support for migrating old world data to new format

Author: Pyrofab

build.gradle.kts

@@ -3,7 +3,7 @@ import java.net.URI
 
 plugins {
     id("net.fabricmc.fabric-loom") version "1.15-SNAPSHOT"
-    id("io.github.ladysnake.chenille") version "0.18.0-SNAPSHOT"
+    id("io.github.ladysnake.chenille") version "0.18.0"
 }
 
 val fabricApiVersion: String = providers.gradleProperty("fabric_api_version").get()

cardinal-components-level/src/main/java/org/ladysnake/cca/mixin/level/common/MixinDimensionStorageFileFix.java

@@ -0,0 +1,37 @@
+package org.ladysnake.cca.mixin.level.common;
+
+import com.mojang.datafixers.schemas.Schema;
+import net.minecraft.util.filefix.FileFix;
+import net.minecraft.util.filefix.access.FileRelation;
+import net.minecraft.util.filefix.fixes.DimensionStorageFileFix;
+import net.minecraft.util.filefix.operations.FileFixOperations;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+import java.util.List;
+import java.util.Map;
+
+@Mixin(DimensionStorageFileFix.class)
+public abstract class MixinDimensionStorageFileFix extends FileFix {
+    public MixinDimensionStorageFileFix(Schema schema) {
+        super(schema);
+    }
+
+    @Inject(method = "makeFixer", at = @At("HEAD"))
+    private void customFixers(CallbackInfo ci) {
+        // Handle custom dimension data
+        this.addFileFixOperation(FileFixOperations.applyInFolders(FileRelation.DIMENSIONS_DATA,
+            List.of(FileFixOperations.move("cardinal_world_components.dat", "cardinal-components/world.dat"))
+        ));
+
+        // Handle vanilla dimensions data (they used different format, so require separate definition)
+        this.addFileFixOperation(FileFixOperations.groupMove(Map.of(
+            "data", "dimensions/minecraft/overworld/data/cardinal-components",
+                "DIM-1/data", "dimensions/minecraft/the_nether/data/cardinal-components",
+                "DIM1/data", "dimensions/minecraft/the_end/data/cardinal-components"
+            ),
+            List.of(FileFixOperations.move("cardinal_world_components.dat", "world.dat"))));
+    }
+}

cardinal-components-level/src/main/resources/mixins.cardinal_components_level.json

@@ -5,6 +5,7 @@
   "package": "org.ladysnake.cca.mixin.level",
   "mixins": [
     "common.DataFixTypesMixin",
+    "common.MixinDimensionStorageFileFix",
     "common.MixinLevel",
     "common.MixinPlayerList",
     "common.MixinServerLevel"