Fix compatibility with Capes Fabric mod

Fixes #3

src/main/java/com/github/camotoy/bedrockskinutility/client/MixinConfigPlugin.java

@@ -0,0 +1,54 @@
+package com.github.camotoy.bedrockskinutility.client;
+
+import net.fabricmc.loader.api.FabricLoader;
+import org.objectweb.asm.tree.ClassNode;
+import org.slf4j.LoggerFactory;
+import org.spongepowered.asm.mixin.extensibility.IMixinConfigPlugin;
+import org.spongepowered.asm.mixin.extensibility.IMixinInfo;
+
+import java.util.List;
+import java.util.Set;
+
+public class MixinConfigPlugin implements IMixinConfigPlugin {
+
+    @Override
+    public void onLoad(String mixinPackage) {
+
+    }
+
+    @Override
+    public String getRefMapperConfig() {
+        return null;
+    }
+
+    @Override
+    public boolean shouldApplyMixin(String targetClassName, String mixinClassName) {
+        if (mixinClassName.equals("com.github.camotoy.bedrockskinutility.client.mixin.CapeFeatureRendererMixin")) {
+            boolean capes = FabricLoader.getInstance().getModContainer("capes").isPresent();
+            if (capes) {
+                // the Capes mod has a Mixin that just sets all capes to transparent, so we don't need this Mixin
+                LoggerFactory.getLogger(MixinConfigPlugin.class).info("Disabling transparent cape mixin in BedrockSkinUtility as the Capes mod is also installed.");
+                return false;
+            }
+        }
+        return true;
+    }
+
+    @Override
+    public void acceptTargets(Set<String> myTargets, Set<String> otherTargets) {
+
+    }
+
+    @Override
+    public List<String> getMixins() {
+        return null;
+    }
+
+    @Override
+    public void preApply(String targetClassName, ClassNode targetClass, String mixinClassName, IMixinInfo mixinInfo) {
+    }
+
+    @Override
+    public void postApply(String targetClassName, ClassNode targetClass, String mixinClassName, IMixinInfo mixinInfo) {
+    }
+}

src/main/resources/BedrockSkinUtility.mixins.json

@@ -11,6 +11,7 @@
     "PlayerEntityRendererChangeModel",
     "PlayerListEntryMixin"
   ],
+  "plugin": "com.github.camotoy.bedrockskinutility.client.MixinConfigPlugin",
   "injectors": {
     "defaultRequire": 1
   }