Fixed the keybinding and skull rendering

src/main/java/com/minelittlepony/client/FabMod.java

@@ -1,15 +1,22 @@
 package com.minelittlepony.client;
 
 import net.fabricmc.api.ClientModInitializer;
+import net.fabricmc.fabric.api.client.keybinding.FabricKeyBinding;
+import net.fabricmc.fabric.api.client.keybinding.KeyBindingRegistry;
 import net.fabricmc.loader.api.FabricLoader;
 import net.minecraft.block.entity.BlockEntity;
 import net.minecraft.client.MinecraftClient;
+import net.minecraft.client.options.KeyBinding;
+import net.minecraft.client.render.block.entity.BlockEntityRenderDispatcher;
 import net.minecraft.client.render.block.entity.BlockEntityRenderer;
 import net.minecraft.client.render.entity.EntityRenderDispatcher;
 import net.minecraft.client.render.entity.EntityRenderer;
+import net.minecraft.client.util.InputUtil;
 import net.minecraft.entity.Entity;
+import net.minecraft.util.Identifier;
 
 import com.minelittlepony.client.gui.hdskins.MineLPHDSkins;
+import com.minelittlepony.client.mixin.MixinBlockEntityRenderDispatcher;
 import com.minelittlepony.client.settings.ClientPonyConfig;
 import com.minelittlepony.hdskins.mixin.MixinEntityRenderDispatcher;
 import com.minelittlepony.settings.SensibleJsonConfig;
@@ -32,8 +39,27 @@ public class FabMod implements ClientModInitializer, IModUtilities {
         mlp.init(SensibleJsonConfig.of(getConfigDirectory().resolve("minelp.json"), ClientPonyConfig::new));
     }
 
+    @Override
+    public KeyBinding registerKeybind(String category, int key, String bindName) {
+        // normalize Fabric's behavior
+        if (bindName.startsWith("key.")) {
+            bindName = bindName.replace("key.", "");
+        }
+
+        FabricKeyBinding binding = FabricKeyBinding.Builder.create(new Identifier(bindName) {
+            @Override
+            public String toString() { return getPath(); }
+        }, InputUtil.Type.KEYSYM, key, category).build();
+
+        KeyBindingRegistry.INSTANCE.register(binding);
+        return binding;
+    }
+
     @Override
     public <T extends BlockEntity> void addRenderer(Class<T> type, BlockEntityRenderer<T> renderer) {
+        MixinBlockEntityRenderDispatcher mx = ((MixinBlockEntityRenderDispatcher)BlockEntityRenderDispatcher.INSTANCE);
+        mx.getRenderers().put(type, renderer);
+        renderer.setRenderManager(BlockEntityRenderDispatcher.INSTANCE);
     }
 
     @Override

src/main/java/com/minelittlepony/client/IModUtilities.java

@@ -1,6 +1,7 @@
 package com.minelittlepony.client;
 
 import net.minecraft.block.entity.BlockEntity;
+import net.minecraft.client.options.KeyBinding;
 import net.minecraft.client.render.block.entity.BlockEntityRenderer;
 import net.minecraft.client.render.entity.EntityRenderDispatcher;
 import net.minecraft.client.render.entity.EntityRenderer;
@@ -18,6 +19,10 @@ public interface IModUtilities {
         return false;
     }
 
+    default KeyBinding registerKeybind(String category, int key, String bindName) {
+        return new KeyBinding(category, key, bindName);
+    }
+
     Path getConfigDirectory();
 
     Path getAssetsDirectory();

src/main/java/com/minelittlepony/client/MineLPClient.java

@@ -25,9 +25,6 @@ import org.lwjgl.glfw.GLFW;
  */
 public class MineLPClient extends MineLittlePony {
 
-
-    static final KeyBinding SETTINGS_GUI = new KeyBinding("Settings", GLFW.GLFW_KEY_F9, "Mine Little Pony");
-
     private static int modelUpdateCounter = 0;
     private static boolean reloadingModels = false;
 
@@ -38,6 +35,8 @@ public class MineLPClient extends MineLittlePony {
 
     private final PonyRenderManager renderManager = PonyRenderManager.getInstance();
 
+    private KeyBinding keyBinding;
+
     public static MineLPClient getInstance() {
         return (MineLPClient)MineLittlePony.getInstance();
     }
@@ -49,6 +48,7 @@ public class MineLPClient extends MineLittlePony {
     protected void init(PonyConfig newConfig) {
         config = newConfig;
         ponyManager = new PonyManager(config);
+        keyBinding = utilities.registerKeybind("Settings", GLFW.GLFW_KEY_F9, "key.minelittlepony.settings");
     }
 
     /**
@@ -62,9 +62,9 @@ public class MineLPClient extends MineLittlePony {
         irrm.registerListener(ponyManager);
     }
 
-    void onTick(MinecraftClient minecraft, boolean inGame) {
+    public void onTick(MinecraftClient minecraft, boolean inGame) {
         if (inGame && minecraft.currentScreen == null) {
-            if (SETTINGS_GUI.isPressed()) {
+            if (keyBinding.isPressed()) {
                 minecraft.disconnect(new GuiHost(new GuiPonySettings()));
             } else {
                 long handle = minecraft.window.getHandle();

src/main/java/com/minelittlepony/client/mixin/MixinMinecraftClient.java

@@ -19,6 +19,12 @@ public abstract class MixinMinecraftClient extends NonBlockingThreadExecutor<Run
 
     @Inject(method = "init()V", at = @At("RETURN"))
     private void onInit(CallbackInfo info) {
-        MineLPClient.getInstance().postInit(MinecraftClient.getInstance());
+        MineLPClient.getInstance().postInit((MinecraftClient)(Object)this);
+    }
+
+    @Inject(method = "tick()V", at = @At("RETURN"))
+    private void onTick(CallbackInfo info) {
+        MinecraftClient self = (MinecraftClient)(Object)this;
+        MineLPClient.getInstance().onTick(self, self.world != null && self.player != null);
     }
 }

src/main/resources/assets/minelittlepony/lang/en_us.json

@@ -1,4 +1,5 @@
 {
+  "key.minelittlepony.settings": "Mine Little Pony",
   "minelp.options.title": "Mine Little Pony Settings",
   "minelp.options.ponylevel": "Pony Level",
   "minelp.options.ponylevel.ponies": "Ponies Only",

src/main/resources/minelp.mixin.json

@@ -6,6 +6,7 @@
     "compatibilityLevel": "JAVA_8",
     "mixins": [
     	"IResizeable",
+        "MixinBlockEntityRenderDispatcher",
         "MixinDefaultPlayerSkin",
         "MixinFirstPersonRenderer",
         "MixinGlStateManager",