Added an event to allow mods to change the state of pony models before render

src/main/java/com/minelittlepony/client/model/AbstractPonyModel.java

@@ -1,6 +1,8 @@
 package com.minelittlepony.client.model;
 
 import com.minelittlepony.client.model.armour.PonyArmourModel;
+import com.minelittlepony.client.render.EquineRenderManager;
+import com.minelittlepony.model.capabilities.fabric.PonyModelPrepareCallback;
 import com.minelittlepony.api.pony.meta.Race;
 import com.minelittlepony.client.model.armour.ArmourWrapper;
 import com.minelittlepony.client.transform.PonyTransformation;
@@ -67,6 +69,7 @@ public abstract class AbstractPonyModel<T extends LivingEntity> extends ClientPo
     @Override
     public void setAngles(T entity, float move, float swing, float ticks, float headYaw, float headPitch) {
         attributes.checkRainboom(entity, swing, canFly());
+        PonyModelPrepareCallback.EVENT.invoker().onPonyModelPrepared(entity, this, EquineRenderManager.Mode.OTHER);
 
         super.setAngles(entity, move, swing, ticks, headYaw, headPitch);
 

src/main/java/com/minelittlepony/client/model/ClientPonyModel.java

@@ -5,6 +5,7 @@ import net.minecraft.client.render.entity.model.BipedEntityModel;
 import net.minecraft.entity.LivingEntity;
 import net.minecraft.util.Arm;
 
+import com.minelittlepony.model.capabilities.fabric.PonyModelPrepareCallback;
 import com.minelittlepony.api.pony.IPony;
 import com.minelittlepony.api.pony.IPonyData;
 import com.minelittlepony.api.pony.meta.Size;
@@ -36,6 +37,7 @@ public abstract class ClientPonyModel<T extends LivingEntity> extends MsonPlayer
     public void updateLivingState(T entity, IPony pony, EquineRenderManager.Mode mode) {
         child = entity.isBaby();
         attributes.updateLivingState(entity, pony, mode);
+        PonyModelPrepareCallback.EVENT.invoker().onPonyModelPrepared(entity, this, mode);
         sneaking = attributes.isCrouching;
         riding = attributes.isSitting;
     }

src/main/java/com/minelittlepony/client/render/EquineRenderManager.java

@@ -198,6 +198,7 @@ public class EquineRenderManager<T extends LivingEntity, M extends EntityModel<T
 
     public enum Mode {
         FIRST_PERSON,
-        THIRD_PERSON
+        THIRD_PERSON,
+        OTHER
     }
 }

src/main/java/com/minelittlepony/model/capabilities/fabric/PonyModelPrepareCallback.java

@@ -0,0 +1,19 @@
+package com.minelittlepony.model.capabilities.fabric;
+
+import net.fabricmc.fabric.api.event.Event;
+import net.fabricmc.fabric.api.event.EventFactory;
+import net.minecraft.entity.Entity;
+
+import com.minelittlepony.client.render.EquineRenderManager;
+import com.minelittlepony.model.IModel;
+
+public interface PonyModelPrepareCallback {
+
+    Event<PonyModelPrepareCallback> EVENT = EventFactory.createArrayBacked(PonyModelPrepareCallback.class, listeners -> (entity, model, mode) -> {
+        for (PonyModelPrepareCallback event : listeners) {
+            event.onPonyModelPrepared(entity, model, mode);
+        }
+    });
+
+    void onPonyModelPrepared(Entity entity, IModel model, EquineRenderManager.Mode mode);
+}

src/main/java/com/minelittlepony/model/capabilities/fabric/package-info.java

@@ -0,0 +1,4 @@
+@ParametersAreNonnullByDefault
+package com.minelittlepony.model.capabilities.fabric;
+
+import javax.annotation.ParametersAreNonnullByDefault;