126 lines
4.7 KiB
Java
126 lines
4.7 KiB
Java
package net.shadowfacts.simplemultipart.client;
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import net.fabricmc.fabric.api.client.model.ModelProviderContext;
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import net.fabricmc.fabric.api.client.model.ModelProviderException;
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import net.fabricmc.fabric.api.client.model.ModelVariantProvider;
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import net.minecraft.client.render.block.BlockModels;
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import net.minecraft.client.render.model.MultipartUnbakedModel;
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import net.minecraft.client.render.model.UnbakedModel;
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import net.minecraft.client.render.model.json.ModelVariantMap;
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import net.minecraft.client.render.model.json.WeightedUnbakedModel;
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import net.minecraft.client.util.ModelIdentifier;
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import net.minecraft.resource.Resource;
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import net.minecraft.resource.ResourceManager;
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import net.minecraft.util.Identifier;
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import net.shadowfacts.simplemultipart.SimpleMultipart;
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import net.shadowfacts.simplemultipart.multipart.Multipart;
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import net.shadowfacts.simplemultipart.multipart.MultipartState;
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import org.apache.commons.io.IOUtils;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.io.Reader;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.Map;
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import java.util.Set;
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import java.util.function.Consumer;
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/**
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* @author shadowfacts
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*/
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public class MultipartVariantProvider implements ModelVariantProvider {
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private static final Set<ModelIdentifier> multipartModels = new HashSet<>();
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private final ResourceManager resourceManager;
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private final Map<ModelIdentifier, UnbakedModel> unbakedModels = new HashMap<>();
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static void registerMultipartModels(ResourceManager resourceManager, Consumer<ModelIdentifier> adder) {
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for (Multipart part : SimpleMultipart.MULTIPART) {
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Identifier partId = SimpleMultipart.MULTIPART.getId(part);
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for (MultipartState state : part.getStateFactory().getStates()) {
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String variant = BlockModels.propertyMapToString(state.getEntries());
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ModelIdentifier id = new ModelIdentifier(partId, variant);
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multipartModels.add(id);
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adder.accept(id);
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}
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// TODO: should multiparts be able to control this?
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multipartModels.add(new ModelIdentifier(partId, "inventory"));
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}
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}
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public MultipartVariantProvider(ResourceManager resourceManager) {
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this.resourceManager = resourceManager;
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}
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@Override
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public UnbakedModel loadModelVariant(ModelIdentifier id, ModelProviderContext context) throws ModelProviderException {
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if (!multipartModels.contains(id)) {
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return null;
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}
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try {
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return getOrLoadPartModel(id);
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} catch (IOException e) {
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throw new ModelProviderException("Exception encountered while loading multipart model " + id, e);
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}
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}
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private UnbakedModel getOrLoadPartModel(ModelIdentifier modelId) throws ModelProviderException, IOException {
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UnbakedModel existing = unbakedModels.get(modelId);
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if (existing != null) {
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return existing;
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}
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return loadPartModel(modelId);
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}
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private UnbakedModel loadPartModel(ModelIdentifier modelId) throws ModelProviderException, IOException {
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Identifier partId = new Identifier(modelId.getNamespace(), modelId.getPath());
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Identifier partStateDefId = new Identifier(partId.getNamespace(), "multipartstates/" + partId.getPath() + ".json");
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Multipart part = SimpleMultipart.MULTIPART.get(partId);
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MultipartFakeBlock blockAdapter = new MultipartFakeBlock(part);
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ModelVariantMap variantMap = loadPartVariantMap(blockAdapter, partStateDefId);
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if (variantMap.hasMultipartModel()) {
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MultipartUnbakedModel multipartUnbakedModel = variantMap.getMultipartMdoel();
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part.getStateFactory().getStates().forEach(state -> {
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ModelIdentifier stateModelId = new ModelIdentifier(partId, BlockModels.propertyMapToString(state.getEntries()));
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unbakedModels.put(stateModelId, multipartUnbakedModel);
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});
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} else {
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Map<String, WeightedUnbakedModel> variants = variantMap.getVariantMap();
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variants.forEach((variant, model) -> {
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unbakedModels.put(new ModelIdentifier(partId, variant), model);
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});
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}
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UnbakedModel model = unbakedModels.get(modelId);
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if (model == null) {
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throw new ModelProviderException("Loaded multipart state " + partStateDefId + " for model " + modelId + " but still missing model");
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}
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return model;
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}
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private ModelVariantMap loadPartVariantMap(MultipartFakeBlock blockAdapter, Identifier partStateDefId) throws IOException {
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Resource resource = null;
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Reader reader = null;
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try {
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resource = resourceManager.getResource(partStateDefId);
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reader = new InputStreamReader(resource.getInputStream());
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ModelVariantMap.DeserializationContext context = new ModelVariantMap.DeserializationContext();
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context.setStateFactory(blockAdapter.getStateFactory());
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return ModelVariantMap.deserialize(context, reader);
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} finally {
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IOUtils.closeQuietly(reader);
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IOUtils.closeQuietly(resource);
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}
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}
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}
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