feat: allow client to generate data

for testing purpose, remove later

src/main/java/rootenginear/playground/mixin/ChunkProviderClientMixin.java

@@ -0,0 +1,38 @@
+package rootenginear.playground.mixin;
+
+import net.minecraft.client.world.chunk.provider.ChunkProviderClient;
+import net.minecraft.core.world.chunk.Chunk;
+import net.minecraft.core.world.chunk.ChunkCoordIntPair;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.Unique;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+import rootenginear.playground.ChunkProcessor;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+@Mixin(value = ChunkProviderClient.class, remap = false)
+public abstract class ChunkProviderClientMixin {
+	@Shadow
+	private Map chunkMapping;
+
+	@Unique
+	List<ChunkCoordIntPair> dumpedChunks = new ArrayList<>();
+
+	@Inject(method = "provideChunk", at = @At("TAIL"))
+	void joopChunk(int chunkX, int chunkZ, CallbackInfoReturnable<Chunk> cir) {
+		ChunkCoordIntPair chunkcoordintpair = new ChunkCoordIntPair(chunkX, chunkZ);
+		Chunk chunk = (Chunk) this.chunkMapping.get(chunkcoordintpair);
+		if (dumpedChunks.contains(chunkcoordintpair) || chunk == null || !chunk.receivedFromServer) return;
+		System.out.println("Dumping " + chunkX + " " + chunkZ);
+		try {
+			dumpedChunks.add(chunkcoordintpair);
+			ChunkProcessor.readAndDumpChunkData(chunkX, chunkZ, chunk);
+		} catch (Exception ignored) {
+		}
+	}
+}

src/main/resources/playground.mixins.json

@@ -8,5 +8,8 @@
   ],
   "injectors": {
     "defaultRequire": 1
-  }
+  },
+  "client": [
+    "ChunkProviderClientMixin"
+  ]
 }