minecraft-src/net/minecraft/stats/Stat.java
2025-07-04 01:41:11 +03:00

79 lines
2.7 KiB
Java

package net.minecraft.stats;
import java.util.Objects;
import net.minecraft.core.registries.BuiltInRegistries;
import net.minecraft.core.registries.Registries;
import net.minecraft.network.RegistryFriendlyByteBuf;
import net.minecraft.network.codec.ByteBufCodecs;
import net.minecraft.network.codec.StreamCodec;
import net.minecraft.resources.ResourceLocation;
import net.minecraft.world.scores.criteria.ObjectiveCriteria;
import org.jetbrains.annotations.Nullable;
/**
* An immutable statistic to be counted for a particular entry in the {@linkplain #type}'s registry. This is used as a key in a {@link net.minecraft.stats.StatsCounter} for a corresponding count.
* <p>
* By default, the statistic's {@linkplain #getName() name} is formatted {@code <stat type namespace>.<stat type path>:<value namespace>.<value path>}, as created by {@link #buildName(StatType, Object)}.
*
* @param <T> the type of the registry entry for this statistic
* @see net.minecraft.stats.StatType
* @see net.minecraft.stats.Stats
*/
public class Stat<T> extends ObjectiveCriteria {
public static final StreamCodec<RegistryFriendlyByteBuf, Stat<?>> STREAM_CODEC = ByteBufCodecs.registry(Registries.STAT_TYPE)
.dispatch(Stat::getType, StatType::streamCodec);
private final StatFormatter formatter;
/**
* The registry entry for this statistic.
*/
private final T value;
/**
* The parent statistic type.
*/
private final StatType<T> type;
protected Stat(StatType<T> type, T value, StatFormatter formatter) {
super(buildName(type, value));
this.type = type;
this.formatter = formatter;
this.value = value;
}
/**
* @return the name for the specified {@code type} and {@code value} in the form {@code <stat type namespace>.<stat type path>:<value namespace>.<value path>}
*/
public static <T> String buildName(StatType<T> type, T value) {
return locationToKey(BuiltInRegistries.STAT_TYPE.getKey(type)) + ":" + locationToKey(type.getRegistry().getKey(value));
}
/**
* @return the specified {@code location} as a string with {@code .} as the separator character
*/
private static <T> String locationToKey(@Nullable ResourceLocation location) {
return location.toString().replace(':', '.');
}
public StatType<T> getType() {
return this.type;
}
public T getValue() {
return this.value;
}
public String format(int value) {
return this.formatter.format(value);
}
public boolean equals(Object object) {
return this == object || object instanceof Stat && Objects.equals(this.getName(), ((Stat)object).getName());
}
public int hashCode() {
return this.getName().hashCode();
}
public String toString() {
return "Stat{name=" + this.getName() + ", formatter=" + this.formatter + "}";
}
}