Split unbaked model load event into load and pre-bake stages

Allows mods like Continuity to wrap the model being baked
separately from the model in the cache

common/src/main/java/org/embeddedt/modernfix/api/entrypoint/ModernFixClientIntegration.java

@@ -34,6 +34,19 @@ public interface ModernFixClientIntegration {
         return originalModel;
     }
 
+    /**
+     * Called to allow mods to observe the use of an unbaked model at bake time and either make changes to it or wrap it with their
+     * own instance.
+     * @param location the ResourceLocation of the model (this may be a ModelResourceLocation)
+     * @param originalModel the original model
+     * @param bakery the model bakery - do not touch internal fields as they probably don't behave the way you expect
+     * with dynamic resources on
+     * @return the model which should actually be loaded for this resource location
+     */
+    default UnbakedModel onUnbakedModelPreBake(ResourceLocation location, UnbakedModel originalModel, ModelBakery bakery) {
+        return originalModel;
+    }
+
     /**
      * Called to allow mods to observe the loading of a baked model and either make changes to it or wrap it with their
      * own instance.

fabric/src/main/java/org/embeddedt/modernfix/fabric/mixin/perf/dynamic_resources/ModelBakeryMixin.java

@@ -448,6 +448,17 @@ public abstract class ModelBakeryMixin implements IExtendedModelBakery {
 
                 if(iunbakedmodel == missingModel && debugDynamicModelLoading)
                     LOGGER.warn("Model {} not present", arg);
+
+                if(iunbakedmodel != missingModel) {
+                    for(ModernFixClientIntegration integration : ModernFixClient.CLIENT_INTEGRATIONS) {
+                        try {
+                            iunbakedmodel = integration.onUnbakedModelPreBake(arg, iunbakedmodel, (ModelBakery)(Object)this);
+                        } catch(RuntimeException e) {
+                            ModernFix.LOGGER.error("Exception firing model pre-bake event for {}", arg, e);
+                        }
+                    }
+                }
+
                 BakedModel ibakedmodel = null;
                 if (iunbakedmodel instanceof BlockModel) {
                     BlockModel blockmodel = (BlockModel)iunbakedmodel;

forge/src/main/java/org/embeddedt/modernfix/forge/mixin/perf/dynamic_resources/ModelBakeryMixin.java

@@ -322,6 +322,17 @@ public abstract class ModelBakeryMixin implements IExtendedModelBakery {
                 iunbakedmodel.getMaterials(this::getModel, new HashSet<>());
                 if(iunbakedmodel == missingModel && debugDynamicModelLoading)
                     LOGGER.warn("Model {} not present", arg);
+
+                if(iunbakedmodel != missingModel) {
+                    for(ModernFixClientIntegration integration : ModernFixClient.CLIENT_INTEGRATIONS) {
+                        try {
+                            iunbakedmodel = integration.onUnbakedModelPreBake(arg, iunbakedmodel, (ModelBakery)(Object)this);
+                        } catch(RuntimeException e) {
+                            ModernFix.LOGGER.error("Exception encountered firing bake event for {}", arg, e);
+                        }
+                    }
+                }
+
                 BakedModel ibakedmodel = null;
                 if (iunbakedmodel instanceof BlockModel) {
                     BlockModel blockmodel = (BlockModel)iunbakedmodel;