1.21.10 / perf: arrayInt sort

src/main/java/betterblockentities/mixin/minecraft/ModelCommandRendererMixin.java

@@ -0,0 +1,45 @@
+package betterblockentities.mixin.minecraft;
+
+import it.unimi.dsi.fastutil.ints.IntArrays;
+import net.minecraft.client.render.command.ModelCommandRenderer;
+import net.minecraft.client.render.command.OrderedRenderCommandQueueImpl;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+import java.util.ArrayList;
+import java.util.Comparator;
+import java.util.List;
+
+@Mixin(ModelCommandRenderer.class)
+public class ModelCommandRendererMixin {
+
+    @Redirect(method = "render(Lnet/minecraft/client/render/command/BatchingRenderCommandQueue;Lnet/minecraft/client/render/VertexConsumerProvider$Immediate;Lnet/minecraft/client/render/OutlineVertexConsumerProvider;Lnet/minecraft/client/render/VertexConsumerProvider$Immediate;)V", at = @At(value = "INVOKE", target = "Ljava/util/List;sort(Ljava/util/Comparator;)V"))
+    private void arrayIntSort(List<OrderedRenderCommandQueueImpl.BlendedModelCommand<?>> list,
+            Comparator<?> comparator) {
+        int size = list.size();
+        if (size < 2)
+            return;
+
+        double[] keys = new double[size];
+        int[] indices = new int[size];
+
+        for (int i = 0; i < size; i++) {
+            keys[i] = -list.get(i).position().lengthSquared();
+            indices[i] = i;
+        }
+
+        IntArrays.quickSort(indices, (a, b) -> {
+            int c = Double.compare(keys[a], keys[b]);
+            return c == 0 ? Integer.compare(a, b) : c;
+        });
+
+        List<OrderedRenderCommandQueueImpl.BlendedModelCommand<?>> sorted = new ArrayList<>(size);
+        for (int i = 0; i < size; i++) {
+            sorted.add(list.get(indices[i]));
+        }
+
+        list.clear();
+        list.addAll(sorted);
+    }
+}

src/main/resources/betterblockentities.mixins.json

@@ -4,30 +4,25 @@
   "compatibilityLevel": "JAVA_21",
   "mixins": [
     "minecraft.bell.BellBlockEntityMixin",
-
     "minecraft.chest.ChestBlockEntityAccessor",
     "minecraft.chest.ChestBlockEntityMixin",
     "minecraft.chest.ChestBlockEntityRendererMixin",
     "minecraft.chest.ChestLidAnimatorAccessor",
     "minecraft.chest.EnderChestBlockEntityMixin",
-
     "minecraft.decordatedpot.DecoratedPotBlockEntityMixin",
-
     "minecraft.shulker.ShulkerBoxBlockEntityMixin",
-
     "minecraft.sign.AbstractSignBlockEntityRendererMixin",
-
     "sodium.AbstractBlockRenderContextAccessor",
     "sodium.BlockRendererMixin",
     "sodium.SodiumWorldRendererMixin",
-
     "minecraft.AbstractBlockMixin",
     "minecraft.BlockEntityMixin",
     "minecraft.ClientWorldMixin",
     "minecraft.OrderedRenderCommandQueueImplMixin",
     "minecraft.RenderLayersMixin",
     "minecraft.ResourcePackManagerMixin",
-    "minecraft.WorldRendererMixin"
+    "minecraft.WorldRendererMixin",
+    "minecraft.ModelCommandRendererMixin"
   ],
   "server": [],
   "injectors": {