Fixed skulls not always rendering with magic effects

src/main/java/com/minelittlepony/mixin/MixinGlStateManager.java

@@ -0,0 +1,25 @@
+package com.minelittlepony.mixin;
+
+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 com.minelittlepony.render.PonySkullRenderer;
+
+import net.minecraft.client.renderer.GlStateManager;
+import net.minecraft.client.renderer.GlStateManager.DestFactor;
+import net.minecraft.client.renderer.GlStateManager.SourceFactor;
+
+@Mixin(GlStateManager.class)
+public abstract class MixinGlStateManager {
+
+    @Inject(method = "enableBlendProfile(Lnet/minecraft/client/renderer/GlStateManager$Profile;)V", at = @At("HEAD"), cancellable = true)
+    private static void enableBlendProfile(GlStateManager.Profile profile, CallbackInfo info) {
+        if (profile == GlStateManager.Profile.PLAYER_SKIN && PonySkullRenderer.ponyInstance.usesTransparency()) {
+            GlStateManager.enableBlend();
+            GlStateManager.tryBlendFuncSeparate(SourceFactor.CONSTANT_COLOR, DestFactor.ONE, SourceFactor.ONE, DestFactor.ZERO);
+            info.cancel();
+        }
+    }
+}

src/main/java/com/minelittlepony/render/LevitatingItemRenderer.java

@@ -35,6 +35,7 @@ public class LevitatingItemRenderer {
 
         RenderItem renderItem = Minecraft.getMinecraft().getRenderItem();
         ((IRenderItem) renderItem).useTransparency(true);
+        PonySkullRenderer.ponyInstance.useTransparency(true);
 
         scale(1.1, 1.1, 1.1);
 
@@ -44,6 +45,7 @@ public class LevitatingItemRenderer {
         renderItem.renderItem(drop, entity, transform, hand == EnumHandSide.LEFT);
 
         ((IRenderItem) renderItem).useTransparency(false);
+        PonySkullRenderer.ponyInstance.useTransparency(false);
         unsetColor();
         enableLighting();
         popMatrix();

src/main/java/com/minelittlepony/render/PonySkullRenderer.java

@@ -139,6 +139,10 @@ public class PonySkullRenderer extends TileEntitySkullRenderer implements IRende
         transparency = use;
     }
 
+    public boolean usesTransparency() {
+        return transparency;
+    }
+
     /**
      * A skull, just a skull.
      *

src/main/java/com/minelittlepony/render/player/RenderPonyPlayer.java

@@ -18,8 +18,6 @@ import com.voxelmodpack.hdskins.HDSkinManager;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.entity.AbstractClientPlayer;
 import net.minecraft.client.renderer.GlStateManager;
-import net.minecraft.client.renderer.GlStateManager.DestFactor;
-import net.minecraft.client.renderer.GlStateManager.SourceFactor;
 import net.minecraft.client.renderer.entity.RenderManager;
 import net.minecraft.client.resources.DefaultPlayerSkin;
 import net.minecraft.entity.player.EntityPlayer;
@@ -39,11 +37,7 @@ public class RenderPonyPlayer extends RenderPonyBase {
 
         @Override
         public void preRender(boolean transparency) {
-            if (transparency) {
+            GlStateManager.enableBlendProfile(GlStateManager.Profile.PLAYER_SKIN);
-                GlStateManager.tryBlendFuncSeparate(SourceFactor.CONSTANT_COLOR, DestFactor.ONE, SourceFactor.ONE, DestFactor.ZERO);
-            } else {
-                GlStateManager.enableBlendProfile(GlStateManager.Profile.PLAYER_SKIN);
-            }
         }
 
         @Override

src/main/resources/minelp.mixin.json

@@ -9,6 +9,7 @@
         "MixinNetworkPlayerInfo",
         "MixinRenderItem",
         "MixinItemRenderer",
-        "MixinRenderManager"
+        "MixinRenderManager",
+        "MixinGlStateManager"
     ]
 }