Add resourcepack-extensions to allow using bluemaps resourcepack syst…

…em to load custom resources

core/src/main/java/de/bluecolored/bluemap/core/resources/pack/resourcepack/ResourcePack.java

@@ -70,6 +70,8 @@ public class ResourcePack extends Pack {
     private final BlockColorCalculatorFactory colorCalculatorFactory;
     private final BlockPropertiesConfig blockPropertiesConfig;
 
+    private final Map<ResourcePackExtensionType<?>, ResourcePackExtension> resourcePackExtensions;
+
     private final Map<String, ResourcePath<BlockState>> blockStatePaths;
     private final Map<String, ResourcePath<Texture>> texturePaths;
     private final LoadingCache<de.bluecolored.bluemap.core.world.BlockState, BlockProperties> blockPropertiesCache;
@@ -87,6 +89,10 @@ public ResourcePack(int packVersion) {
         this.colorCalculatorFactory = new BlockColorCalculatorFactory();
         this.blockPropertiesConfig = new BlockPropertiesConfig();
 
+        this.resourcePackExtensions = new HashMap<>();
+        for (ResourcePackExtensionType<?> extensionType : ResourcePackExtensionType.REGISTRY.values())
+            resourcePackExtensions.put(extensionType, extensionType.create());
+
         this.blockPropertiesCache = Caffeine.newBuilder()
                 .executor(BlueMap.THREAD_POOL)
                 .maximumSize(10000)
@@ -203,6 +209,12 @@ private void loadResources(Path root) throws IOException {
             if (cause != null) throw new IOException(cause);
             throw new IOException(ex);
         }
+
+        // invoke extensions
+        for (ResourcePackExtension extension : resourcePackExtensions.values()) {
+            extension.loadResources(root);
+        }
+
     }
 
     private void loadTextures(Path root) throws IOException {
@@ -251,6 +263,13 @@ private void loadTextures(Path root) throws IOException {
             if (cause != null) throw new IOException(cause);
             throw new IOException(ex);
         }
+
+        // invoke extensions
+        for (ResourcePackExtension extension : resourcePackExtensions.values()) {
+            extension.loadTextures(root)
+                    .forEach(texture -> textures.put(texture.getResourcePath(), texture));
+        }
+
     }
 
     private void bake() throws IOException, InterruptedException {
@@ -286,33 +305,33 @@ private void bake() throws IOException, InterruptedException {
         if (grass == null) throw new IOException("Failed to bake resource-pack: No grass-colormap found!");
         this.colorCalculatorFactory.setGrassMap(grass);
 
+        // invoke extensions
+        for (ResourcePackExtension extension : resourcePackExtensions.values()) {
+            extension.bake();
+        }
+
     }
 
-    @Nullable
-    public BlockState getBlockState(de.bluecolored.bluemap.core.world.BlockState blockState) {
+    public @Nullable BlockState getBlockState(de.bluecolored.bluemap.core.world.BlockState blockState) {
         ResourcePath<BlockState> path = blockStatePaths.get(blockState.getFormatted());
         return path != null ? path.getResource(this::getBlockState) : MISSING_BLOCK_STATE.getResource(this::getBlockState);
     }
 
-    @Nullable
-    public BlockState getBlockState(ResourcePath<BlockState> path) {
+    public @Nullable BlockState getBlockState(ResourcePath<BlockState> path) {
         BlockState blockState = blockStates.get(path);
         return blockState != null ? blockState : MISSING_BLOCK_STATE.getResource(blockStates::get);
     }
 
-    @Nullable
-    public BlockModel getBlockModel(ResourcePath<BlockModel> path) {
+    public @Nullable BlockModel getBlockModel(ResourcePath<BlockModel> path) {
         BlockModel blockModel = blockModels.get(path);
         return blockModel != null ? blockModel : MISSING_BLOCK_MODEL.getResource(blockModels::get);
     }
 
-    @Nullable
-    public ResourcePath<Texture> getTexturePath(String formatted) {
+    public @Nullable ResourcePath<Texture> getTexturePath(String formatted) {
         return texturePaths.get(formatted);
     }
 
-    @Nullable
-    public Texture getTexture(ResourcePath<Texture> path) {
+    public @Nullable Texture getTexture(ResourcePath<Texture> path) {
         Texture texture = textures.get(path);
         return texture != null ? texture : MISSING_TEXTURE.getResource(textures::get);
     }
@@ -348,4 +367,9 @@ private BlockProperties loadBlockProperties(de.bluecolored.bluemap.core.world.Bl
         return props.build();
     }
 
+    @SuppressWarnings({"unchecked", "unused"})
+    public <T extends ResourcePackExtension> @Nullable T getResourcePackExtension(ResourcePackExtensionType<T> extensionType) {
+        return (T) resourcePackExtensions.get(extensionType);
+    }
+
 }

core/src/main/java/de/bluecolored/bluemap/core/resources/pack/resourcepack/ResourcePackExtension.java

@@ -0,0 +1,43 @@
+/*
+ * This file is part of BlueMap, licensed under the MIT License (MIT).
+ *
+ * Copyright (c) Blue (Lukas Rieger) <https://bluecolored.de>
+ * Copyright (c) contributors
+ *
+ * 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 de.bluecolored.bluemap.core.resources.pack.resourcepack;
+
+import de.bluecolored.bluemap.core.resources.pack.resourcepack.texture.Texture;
+
+import java.io.IOException;
+import java.nio.file.Path;
+import java.util.List;
+
+public interface ResourcePackExtension {
+
+    default void loadResources(Path root) throws IOException {}
+
+    default Iterable<Texture> loadTextures(Path root) throws IOException {
+        return List.of();
+    }
+
+    default void bake() throws IOException {}
+
+}

core/src/main/java/de/bluecolored/bluemap/core/resources/pack/resourcepack/ResourcePackExtensionType.java

@@ -0,0 +1,36 @@
+/*
+ * This file is part of BlueMap, licensed under the MIT License (MIT).
+ *
+ * Copyright (c) Blue (Lukas Rieger) <https://bluecolored.de>
+ * Copyright (c) contributors
+ *
+ * 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 de.bluecolored.bluemap.core.resources.pack.resourcepack;
+
+import de.bluecolored.bluemap.core.util.Keyed;
+import de.bluecolored.bluemap.core.util.Registry;
+
+public interface ResourcePackExtensionType<T extends ResourcePackExtension> extends Keyed {
+
+    Registry<ResourcePackExtensionType<?>> REGISTRY = new Registry<>();
+
+    T create();
+
+}

core/src/main/java/de/bluecolored/bluemap/core/resources/pack/resourcepack/texture/Texture.java

@@ -98,6 +98,10 @@ public String getTexture() {
         return texture;
     }
 
+    public static Texture from(ResourcePath<Texture> resourcePath, BufferedImage image) throws IOException {
+        return from(resourcePath, image, null);
+    }
+
     public static Texture from(ResourcePath<Texture> resourcePath, BufferedImage image, @Nullable AnimationMeta animation) throws IOException {
 
         //check halfTransparency