start addon impl

common/addons/shortcut-blockstate-fallback/LICENSE

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+MIT License
+
+Copyright (c) 2020-2025 Polyhedral Development
+
+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.

common/addons/shortcut-blockstate-fallback/build.gradle.kts

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+version = version("1.0.0")
+
+dependencies {
+    compileOnlyApi(project(":common:addons:manifest-addon-loader"))
+}

common/addons/shortcut-blockstate-fallback/src/main/java/com/dfsek/terra/addons/shortcut/blockstate/BlockStateFallbackTemplate.java

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+package com.dfsek.terra.addons.shortcut.blockstate;
+
+import com.dfsek.tectonic.api.config.template.annotations.Final;
+import com.dfsek.tectonic.api.config.template.annotations.Value;
+
+import com.dfsek.terra.api.config.AbstractableTemplate;
+import com.dfsek.terra.api.config.meta.Meta;
+
+import java.util.List;
+
+
+public class BlockStateFallbackTemplate implements AbstractableTemplate {
+    @Value("id")
+    @Final
+    private String id;
+
+    @Value("target")
+    private @Meta String target;
+
+    @Value("alternatives")
+    private @Meta List<@Meta String> alternatives;
+
+    @Override
+    public String getID() {
+        return id;
+    }
+
+    public String getTarget() {
+        return target;
+    }
+
+    public List<String> getAlternatives() {
+        return alternatives;
+    }
+}

common/addons/shortcut-blockstate-fallback/src/main/java/com/dfsek/terra/addons/shortcut/blockstate/FallbackConfigType.java

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+package com.dfsek.terra.addons.shortcut.blockstate;
+
+import com.dfsek.tectonic.api.config.template.ConfigTemplate;
+
+import com.dfsek.tectonic.api.exception.LoadException;
+
+import com.dfsek.terra.api.Platform;
+import com.dfsek.terra.api.block.state.BlockState;
+import com.dfsek.terra.api.config.ConfigFactory;
+import com.dfsek.terra.api.config.ConfigPack;
+import com.dfsek.terra.api.config.ConfigType;
+import com.dfsek.terra.api.util.reflection.TypeKey;
+
+
+public class FallbackConfigType implements ConfigType<BlockStateFallbackTemplate, BlockState>, ConfigFactory<BlockStateFallbackTemplate, BlockState>  {
+    @Override
+    public BlockStateFallbackTemplate getTemplate(ConfigPack pack, Platform platform) {
+        return null;
+    }
+
+    @Override
+    public ConfigFactory<BlockStateFallbackTemplate, BlockState> getFactory() {
+        return this;
+    }
+
+    @Override
+    public TypeKey<BlockState> getTypeKey() {
+        return null;
+    }
+
+    @Override
+    public BlockState build(BlockStateFallbackTemplate config, Platform platform) throws LoadException {
+        return null;
+    }
+}

common/addons/shortcut-blockstate-fallback/src/main/java/com/dfsek/terra/addons/shortcut/blockstate/ShortcutBlockStateFallbackAddon.java

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+package com.dfsek.terra.addons.shortcut.blockstate;
+
+import com.dfsek.terra.addons.manifest.api.AddonInitializer;
+import com.dfsek.terra.api.Platform;
+import com.dfsek.terra.api.addon.BaseAddon;
+import com.dfsek.terra.api.block.state.BlockState;
+import com.dfsek.terra.api.event.events.config.pack.ConfigPackPreLoadEvent;
+import com.dfsek.terra.api.event.functional.FunctionalEventHandler;
+import com.dfsek.terra.api.inject.annotations.Inject;
+import com.dfsek.terra.api.world.chunk.generation.util.Palette;
+
+
+public class ShortcutBlockStateFallbackAddon implements AddonInitializer {
+    @Inject
+    private BaseAddon addon;
+    @Inject
+    private Platform platform;
+
+    @Override
+    public void initialize() {
+        platform.getEventManager()
+            .getHandler(FunctionalEventHandler.class)
+            .register(addon, ConfigPackPreLoadEvent.class)
+            .then(event -> event.getPack()
+                .registerShortcut(Palette.class, "FALLBACK",
+                    (configLoader, input, tracker) -> new SingletonPalette(
+                        configLoader.loadType(BlockState.class, input, tracker))))
+            .failThrough();
+
+    }
+}

common/addons/shortcut-blockstate-fallback/src/main/resources/terra.addon.yml

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+schema-version: 1
+contributors:
+  - Terra contributors
+id: shortcut-blockstate-fallback
+version: @VERSION@
+entrypoints:
+  - "com.dfsek.terra.addons.shortcut.blockstate.ShortcutBlockstateFallbackAddon"
+website:
+  issues: https://github.com/PolyhedralDev/Terra/issues
+  source: https://github.com/PolyhedralDev/Terra
+  docs: https://terra.polydev.org
+license: MIT License