From dc297294191593ea367b2978827c6ab8ca59a4e3 Mon Sep 17 00:00:00 2001
From: Sollace <sollacea@gmail.com>
Date: Mon, 23 Oct 2023 23:10:54 +0100
Subject: [PATCH] Adjust butterfly brightness to account for their
 surroundings. (should prevent them from glowing)

---
 .../entity/ButterflyEntityRenderer.java       | 23 +++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/src/main/java/com/minelittlepony/unicopia/client/render/entity/ButterflyEntityRenderer.java b/src/main/java/com/minelittlepony/unicopia/client/render/entity/ButterflyEntityRenderer.java
index 1313e8c1..a6df7a32 100644
--- a/src/main/java/com/minelittlepony/unicopia/client/render/entity/ButterflyEntityRenderer.java
+++ b/src/main/java/com/minelittlepony/unicopia/client/render/entity/ButterflyEntityRenderer.java
@@ -1,20 +1,26 @@
 package com.minelittlepony.unicopia.client.render.entity;
 
+import org.jetbrains.annotations.Nullable;
+
 import com.minelittlepony.unicopia.client.render.RenderLayers;
 import com.minelittlepony.unicopia.entity.mob.ButterflyEntity;
 
+import net.minecraft.client.MinecraftClient;
 import net.minecraft.client.model.ModelData;
 import net.minecraft.client.model.ModelPart;
 import net.minecraft.client.model.ModelPartBuilder;
 import net.minecraft.client.model.ModelPartData;
 import net.minecraft.client.model.ModelTransform;
 import net.minecraft.client.model.TexturedModelData;
+import net.minecraft.client.render.RenderLayer;
 import net.minecraft.client.render.VertexConsumer;
 import net.minecraft.client.render.entity.EntityRendererFactory;
 import net.minecraft.client.render.entity.MobEntityRenderer;
 import net.minecraft.client.render.entity.model.EntityModel;
 import net.minecraft.client.util.math.MatrixStack;
+import net.minecraft.client.world.ClientWorld;
 import net.minecraft.util.Identifier;
+import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.MathHelper;
 
 public class ButterflyEntityRenderer extends MobEntityRenderer<ButterflyEntity, ButterflyEntityRenderer.ButterflyEntityModel> {
@@ -45,6 +51,23 @@ public class ButterflyEntityRenderer extends MobEntityRenderer<ButterflyEntity,
         super.setupTransforms(entity, matrices, age, yaw, ticks);
     }
 
+    @Override
+    @Nullable
+    protected RenderLayer getRenderLayer(ButterflyEntity entity, boolean showBody, boolean translucent, boolean showOutline) {
+        if (showBody && !translucent) {
+            BlockPos pos = entity.getBlockPos();
+            if (getBlockLight(entity, pos) < 7 && getSkyLight(entity, pos) < 15) {
+                return RenderLayers.getEntityTranslucent(getTexture(entity));
+            }
+        }
+        return super.getRenderLayer(entity, showBody, translucent, showOutline);
+    }
+
+    @Override
+    protected int getSkyLight(ButterflyEntity entity, BlockPos pos) {
+        return (int)(super.getSkyLight(entity, pos) * (entity.getWorld() instanceof ClientWorld w ? w.getSkyBrightness(MinecraftClient.getInstance().getTickDelta()) : 1));
+    }
+
     public static class ButterflyEntityModel extends EntityModel<ButterflyEntity> {
         private final ModelPart body;
         private final ModelPart leftWing;