diff --git a/fabric-rendering-v1/src/main/java/net/fabricmc/fabric/api/client/rendering/v1/BuiltinItemRenderer.java b/fabric-rendering-v1/src/main/java/net/fabricmc/fabric/api/client/rendering/v1/BuiltinItemRenderer.java new file mode 100644 index 000000000..f5add3e5f --- /dev/null +++ b/fabric-rendering-v1/src/main/java/net/fabricmc/fabric/api/client/rendering/v1/BuiltinItemRenderer.java @@ -0,0 +1,46 @@ +/* + * Copyright (c) 2016, 2017, 2018, 2019 FabricMC + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package net.fabricmc.fabric.api.client.rendering.v1; + +import net.minecraft.client.render.VertexConsumerProvider; +import net.minecraft.client.util.math.MatrixStack; +import net.minecraft.item.ItemStack; + +import net.fabricmc.api.EnvType; +import net.fabricmc.api.Environment; + +/** + * Builtin item renderers render items with custom code. + * They allow using non-model rendering, such as BERs, for items. + * + *

An item with a builtin renderer must have a model extending {@code minecraft:builtin/entity}. + * The renderers are registered with {@link BuiltinItemRendererRegistry#register}. + */ +@Environment(EnvType.CLIENT) +@FunctionalInterface +public interface BuiltinItemRenderer { + /** + * Renders an item stack. + * + * @param stack the rendered item stack + * @param matrices the matrix stack + * @param vertexConsumers the vertex consumer provider + * @param light the color light multiplier at the rendering position + * @param overlay the overlay UV passed to {@link net.minecraft.client.render.VertexConsumer#overlay(int)} + */ + void render(ItemStack stack, MatrixStack matrices, VertexConsumerProvider vertexConsumers, int light, int overlay); +} diff --git a/fabric-rendering-v1/src/main/java/net/fabricmc/fabric/api/client/rendering/v1/BuiltinItemRendererRegistry.java b/fabric-rendering-v1/src/main/java/net/fabricmc/fabric/api/client/rendering/v1/BuiltinItemRendererRegistry.java new file mode 100644 index 000000000..22855a46b --- /dev/null +++ b/fabric-rendering-v1/src/main/java/net/fabricmc/fabric/api/client/rendering/v1/BuiltinItemRendererRegistry.java @@ -0,0 +1,47 @@ +/* + * Copyright (c) 2016, 2017, 2018, 2019 FabricMC + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package net.fabricmc.fabric.api.client.rendering.v1; + +import net.minecraft.item.Item; + +import net.fabricmc.api.EnvType; +import net.fabricmc.api.Environment; +import net.fabricmc.fabric.impl.client.rendering.BuiltinItemRendererRegistryImpl; + +/** + * This registry holds {@linkplain BuiltinItemRenderer builtin item renderers} for items. + */ +@Environment(EnvType.CLIENT) +public interface BuiltinItemRendererRegistry { + /** + * The singleton instance of the renderer registry. + * Use this instance to call the methods in this interface. + */ + BuiltinItemRendererRegistry INSTANCE = BuiltinItemRendererRegistryImpl.INSTANCE; + + /** + * Registers the renderer for the item. + * + *

Note that the item's JSON model must also extend {@code minecraft:builtin/entity}. + * + * @param item the item + * @param renderer the renderer + * @throws IllegalArgumentException if the item already has a registered renderer + * @throws NullPointerException if either the item or the renderer is null + */ + void register(Item item, BuiltinItemRenderer renderer); +} diff --git a/fabric-rendering-v1/src/main/java/net/fabricmc/fabric/impl/client/rendering/BuiltinItemRendererRegistryImpl.java b/fabric-rendering-v1/src/main/java/net/fabricmc/fabric/impl/client/rendering/BuiltinItemRendererRegistryImpl.java new file mode 100644 index 000000000..348708a78 --- /dev/null +++ b/fabric-rendering-v1/src/main/java/net/fabricmc/fabric/impl/client/rendering/BuiltinItemRendererRegistryImpl.java @@ -0,0 +1,56 @@ +/* + * Copyright (c) 2016, 2017, 2018, 2019 FabricMC + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package net.fabricmc.fabric.impl.client.rendering; + +import java.util.HashMap; +import java.util.Map; +import java.util.Objects; + +import net.minecraft.item.Item; +import net.minecraft.util.registry.Registry; + +import net.fabricmc.api.EnvType; +import net.fabricmc.api.Environment; +import net.fabricmc.fabric.api.client.rendering.v1.BuiltinItemRenderer; +import net.fabricmc.fabric.api.client.rendering.v1.BuiltinItemRendererRegistry; + +@Environment(EnvType.CLIENT) +public final class BuiltinItemRendererRegistryImpl implements BuiltinItemRendererRegistry { + public static final BuiltinItemRendererRegistryImpl INSTANCE = new BuiltinItemRendererRegistryImpl(); + + private static final Map RENDERERS = new HashMap<>(); + + private BuiltinItemRendererRegistryImpl() { + } + + @Override + public void register(Item item, BuiltinItemRenderer renderer) { + Objects.requireNonNull(item, "item is null"); + Objects.requireNonNull(renderer, "renderer is null"); + + if (RENDERERS.containsKey(item)) { + throw new IllegalArgumentException("Item " + Registry.ITEM.getId(item) + " already has a builtin renderer!"); + } + + RENDERERS.put(item, renderer); + } + + /* @Nullable */ + public static BuiltinItemRenderer getRenderer(Item item) { + return RENDERERS.get(item); + } +} diff --git a/fabric-rendering-v1/src/main/java/net/fabricmc/fabric/mixin/client/rendering/MixinBuiltinModelItemRenderer.java b/fabric-rendering-v1/src/main/java/net/fabricmc/fabric/mixin/client/rendering/MixinBuiltinModelItemRenderer.java new file mode 100644 index 000000000..006fa23e2 --- /dev/null +++ b/fabric-rendering-v1/src/main/java/net/fabricmc/fabric/mixin/client/rendering/MixinBuiltinModelItemRenderer.java @@ -0,0 +1,43 @@ +/* + * Copyright (c) 2016, 2017, 2018, 2019 FabricMC + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package net.fabricmc.fabric.mixin.client.rendering; + +import org.spongepowered.asm.mixin.Mixin; +import org.spongepowered.asm.mixin.injection.At; +import org.spongepowered.asm.mixin.injection.Inject; +import org.spongepowered.asm.mixin.injection.callback.CallbackInfo; + +import net.minecraft.client.render.VertexConsumerProvider; +import net.minecraft.client.render.item.BuiltinModelItemRenderer; +import net.minecraft.client.util.math.MatrixStack; +import net.minecraft.item.ItemStack; + +import net.fabricmc.fabric.api.client.rendering.v1.BuiltinItemRenderer; +import net.fabricmc.fabric.impl.client.rendering.BuiltinItemRendererRegistryImpl; + +@Mixin(BuiltinModelItemRenderer.class) +abstract class MixinBuiltinModelItemRenderer { + @Inject(method = "render", at = @At("HEAD"), cancellable = true) + private void fabric_onRender(ItemStack stack, MatrixStack matrices, VertexConsumerProvider vertexConsumers, int light, int overlay, CallbackInfo info) { + BuiltinItemRenderer renderer = BuiltinItemRendererRegistryImpl.getRenderer(stack.getItem()); + + if (renderer != null) { + renderer.render(stack, matrices, vertexConsumers, light, overlay); + info.cancel(); + } + } +} diff --git a/fabric-rendering-v1/src/main/resources/fabric-rendering-v1.mixins.json b/fabric-rendering-v1/src/main/resources/fabric-rendering-v1.mixins.json index 4c50428dc..aad088181 100644 --- a/fabric-rendering-v1/src/main/resources/fabric-rendering-v1.mixins.json +++ b/fabric-rendering-v1/src/main/resources/fabric-rendering-v1.mixins.json @@ -4,6 +4,7 @@ "compatibilityLevel": "JAVA_8", "client": [ "MixinBlockColorMap", + "MixinBuiltinModelItemRenderer", "MixinInGameHud", "MixinItemColorMap", "MixinWorldRenderer"