Rewrite drive model to support custom cell models (#4459)

* Rewrite driver model to support custom cell models

Each cell can now register a mapping Item -> ResourceLocation for a
custom cell model. Fallback will always be a 1k item cell.

src/api/java/appeng/api/client/ICellModelRegistry.java

@@ -0,0 +1,88 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2020 TeamAppliedEnergistics
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package appeng.api.client;
+
+import java.util.Map;
+
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+
+import net.minecraft.client.renderer.model.ModelBakery;
+import net.minecraft.item.Item;
+import net.minecraft.util.ResourceLocation;
+
+/**
+ * A registry for 3D models used to render storage cells in the world, when they
+ * are inserted into a drive or similar machines.
+ */
+public interface ICellModelRegistry {
+
+    /**
+     * Register a new model for a storage cell item.
+     * 
+     * <p>
+     * You are responsible for ensuring that the given model is actually loaded by
+     * the game. See
+     * {@see net.minecraftforge.client.model.ModelLoader#addSpecialModel}.
+     * 
+     * This method only maps an {@link Item} to a {@link ResourceLocation} which can
+     * be looked up from the {@link ModelBakery}. No validation about missing models
+     * will be done.
+     * 
+     * Will throw an exception in case a model is already registered for an item.
+     * 
+     * For examples look at our cell part models within the drive model directory.
+     * 
+     * @param item  The cell item
+     * @param model The {@link ResourceLocation} representing the model.
+     * @return
+     */
+    void registerModel(@Nonnull Item item, @Nonnull ResourceLocation model);
+
+    /**
+     * The {@link ResourceLocation} of the model used to render the given storage
+     * cell {@link Item} when inserted into a drive or similar.
+     * 
+     * @param item
+     * @return null, if no model is registered.
+     */
+    @Nullable
+    ResourceLocation model(@Nonnull Item item);
+
+    /**
+     * An unmodifiable map of all registered mappings.
+     * 
+     * @return
+     */
+    @Nonnull
+    Map<Item, ResourceLocation> models();
+
+    /**
+     * Returns the default model, which can be used when no explicit model is
+     * registered.
+     */
+    @Nonnull
+    ResourceLocation getDefaultModel();
+
+}