minecraft-src/net/minecraft/client/renderer/item/properties/select/SelectItemModelProperty.java
2025-07-04 03:45:38 +03:00

68 lines
2.7 KiB
Java

package net.minecraft.client.renderer.item.properties.select;
import com.google.common.collect.HashMultiset;
import com.google.common.collect.Multiset;
import com.mojang.serialization.Codec;
import com.mojang.serialization.DataResult;
import com.mojang.serialization.MapCodec;
import com.mojang.serialization.codecs.RecordCodecBuilder;
import java.util.List;
import java.util.stream.Collectors;
import net.fabricmc.api.EnvType;
import net.fabricmc.api.Environment;
import net.minecraft.client.multiplayer.ClientLevel;
import net.minecraft.client.renderer.item.SelectItemModel;
import net.minecraft.world.entity.LivingEntity;
import net.minecraft.world.item.ItemDisplayContext;
import net.minecraft.world.item.ItemStack;
import org.jetbrains.annotations.Nullable;
@Environment(EnvType.CLIENT)
public interface SelectItemModelProperty<T> {
@Nullable
T get(ItemStack stack, @Nullable ClientLevel level, @Nullable LivingEntity entity, int seed, ItemDisplayContext displayContext);
Codec<T> valueCodec();
SelectItemModelProperty.Type<? extends SelectItemModelProperty<T>, T> type();
@Environment(EnvType.CLIENT)
public record Type<P extends SelectItemModelProperty<T>, T>(MapCodec<SelectItemModel.UnbakedSwitch<P, T>> switchCodec) {
public static <P extends SelectItemModelProperty<T>, T> SelectItemModelProperty.Type<P, T> create(MapCodec<P> mapCodec, Codec<T> codec) {
MapCodec<SelectItemModel.UnbakedSwitch<P, T>> mapCodec2 = RecordCodecBuilder.mapCodec(
instance -> instance.group(
mapCodec.forGetter(SelectItemModel.UnbakedSwitch::property), createCasesFieldCodec(codec).forGetter(SelectItemModel.UnbakedSwitch::cases)
)
.apply(instance, SelectItemModel.UnbakedSwitch::new)
);
return new SelectItemModelProperty.Type<>(mapCodec2);
}
public static <T> MapCodec<List<SelectItemModel.SwitchCase<T>>> createCasesFieldCodec(Codec<T> codec) {
return SelectItemModel.SwitchCase.codec(codec).listOf().validate(SelectItemModelProperty.Type::validateCases).fieldOf("cases");
}
private static <T> DataResult<List<SelectItemModel.SwitchCase<T>>> validateCases(List<SelectItemModel.SwitchCase<T>> cases) {
if (cases.isEmpty()) {
return DataResult.error(() -> "Empty case list");
} else {
Multiset<T> multiset = HashMultiset.create();
for (SelectItemModel.SwitchCase<T> switchCase : cases) {
multiset.addAll(switchCase.values());
}
return multiset.size() != multiset.entrySet().size()
? DataResult.error(
() -> "Duplicate case conditions: "
+ (String)multiset.entrySet()
.stream()
.filter(entry -> entry.getCount() > 1)
.map(entry -> entry.getElement().toString())
.collect(Collectors.joining(", "))
)
: DataResult.success(cases);
}
}
}
}