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package moe.nea.firmament.mixins.custommodels;
import com.llamalad7.mixinextras.injector.ModifyReturnValue;
import com.llamalad7.mixinextras.sugar.Local;
import net.minecraft.client.item.ItemAsset;
import net.minecraft.client.item.ItemAssetsLoader;
import net.minecraft.client.render.item.model.BasicItemModel;
import net.minecraft.resource.Resource;
import net.minecraft.resource.ResourceManager;
import net.minecraft.resource.ResourcePack;
import net.minecraft.util.Identifier;
import org.spongepowered.asm.mixin.Mixin;
import org.spongepowered.asm.mixin.injection.At;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.Executor;
import java.util.stream.Collector;
import java.util.stream.Collectors;
@Mixin(ItemAssetsLoader.class)
public class SupplyFakeModelPatch {
@ModifyReturnValue(
method = "load",
at = @At("RETURN")
)
private static CompletableFuture<ItemAssetsLoader.Result> injectFakeGeneratedModels(
CompletableFuture<ItemAssetsLoader.Result> original,
@Local(argsOnly = true) ResourceManager resourceManager,
@Local(argsOnly = true) Executor executor
) {
return original.thenCompose(oldModels -> CompletableFuture.supplyAsync(() -> supplyExtraModels(resourceManager, oldModels), executor));
}
private static ItemAssetsLoader.Result supplyExtraModels(ResourceManager resourceManager, ItemAssetsLoader.Result oldModels) {
Map<Identifier, ItemAsset> newModels = new HashMap<>(oldModels.contents());
var resources = resourceManager.findResources(
"models/item",
id -> id.getNamespace().equals("firmskyblock")
&& id.getPath().endsWith(".json")
&& !id.getPath().substring("models/item/".length()).contains("/"));
for (Map.Entry<Identifier, Resource> model : resources.entrySet()) {
var resource = model.getValue();
var itemModelId = model.getKey().withPath(it -> it.substring("models/item/".length(), it.length() - ".json".length()));
// TODO: parse json file here and make use of it in order to generate predicate files.
var genericModelId = itemModelId.withPrefixedPath("item/");
if (resourceManager.getResource(itemModelId)
.map(Resource::getPack)
.map(it -> isResourcePackNewer(resourceManager, it, resource.getPack()))
.orElse(true)) {
newModels.put(itemModelId, new ItemAsset(
new BasicItemModel.Unbaked(genericModelId, List.of()),
new ItemAsset.Properties(true)
));
}
}
return new ItemAssetsLoader.Result(newModels);
}
private static boolean isResourcePackNewer(
ResourceManager manager,
ResourcePack null_, ResourcePack proposal) {
var pack = manager.streamResourcePacks()
.filter(it -> it == null_ || it == proposal)
.collect(findLast());
return pack.orElse(null) == proposal;
}
private static <T> Collector<T, ?, Optional<T>> findLast() {
return Collectors.reducing(Optional.empty(), Optional::of,
(left, right) -> right.isPresent() ? right : left);
}
}
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