Workaround OF breaking spectator hand mixin

src/main/java/com/replaymod/core/ReplayModMixinConfigPlugin.java

@@ -0,0 +1,75 @@
+package com.replaymod.core;
+
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.objectweb.asm.tree.ClassNode;
+import org.spongepowered.asm.mixin.extensibility.IMixinConfigPlugin;
+import org.spongepowered.asm.mixin.extensibility.IMixinInfo;
+
+import java.io.IOException;
+import java.util.List;
+import java.util.Set;
+
+//#if MC>=11400
+import java.io.InputStream;
+//#else
+//$$ import net.minecraft.launchwrapper.Launch;
+//#endif
+
+public class ReplayModMixinConfigPlugin implements IMixinConfigPlugin {
+    static boolean hasClass(String name) throws IOException {
+        //#if MC>=11400
+        InputStream stream = Thread.currentThread().getContextClassLoader().getResourceAsStream(name.replace('.', '/') + ".class");
+        if (stream != null) stream.close();
+        return stream != null;
+        //#else
+        //$$ return Launch.classLoader.getClassBytes(name) != null;
+        //#endif
+    }
+
+    private final Logger logger = LogManager.getLogger("replaymod/mixin");
+    private final boolean hasOF = hasClass("optifine.OptiFineForgeTweaker") || hasClass("me.modmuss50.optifabric.mod.Optifabric");
+
+    {
+        logger.error("hasOF: " + hasOF);
+    }
+
+    @Override
+    public boolean shouldApplyMixin(String targetClassName, String mixinClassName) {
+        if (mixinClassName.endsWith("_OF")) return hasOF;
+        if (mixinClassName.endsWith("_NoOF")) return !hasOF;
+        return true;
+    }
+
+    @Override
+    public void onLoad(String mixinPackage) {
+    }
+
+    @Override
+    public String getRefMapperConfig() {
+        return null;
+    }
+
+    @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) {
+
+    }
+
+    public ReplayModMixinConfigPlugin() throws IOException {
+    }
+}