src/game/java/net/minecraft/world/ticks/SavedTick.java

package net.minecraft.world.ticks;

import it.unimi.dsi.fastutil.Hash.Strategy;
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;
import java.util.function.Function;
import javax.annotation.Nullable;
import net.minecraft.core.BlockPos;
import net.minecraft.nbt.CompoundTag;
import net.minecraft.nbt.ListTag;
import net.minecraft.world.level.ChunkPos;

public record SavedTick<T>(T type, BlockPos pos, int delay, TickPriority priority) {
    private static final String TAG_ID = "i";
    private static final String TAG_X = "x";
    private static final String TAG_Y = "y";
    private static final String TAG_Z = "z";
    private static final String TAG_DELAY = "t";
    private static final String TAG_PRIORITY = "p";
    public static final Strategy<SavedTick<?>> UNIQUE_TICK_HASH = new Strategy<SavedTick<?>>() {
        public int hashCode(SavedTick<?> p_193364_) {
            return 31 * p_193364_.pos().hashCode() + p_193364_.type().hashCode();
        }

        public boolean equals(@Nullable SavedTick<?> p_193366_, @Nullable SavedTick<?> p_193367_) {
            if (p_193366_ == p_193367_) {
                return true;
            } else {
                return p_193366_ != null && p_193367_ != null
                    ? p_193366_.type() == p_193367_.type() && p_193366_.pos().equals(p_193367_.pos())
                    : false;
            }
        }
    };

    public static <T> List<SavedTick<T>> loadTickList(ListTag p_193351_, Function<String, Optional<T>> p_193352_, ChunkPos p_193353_) {
        List<SavedTick<T>> list = new ArrayList<>(p_193351_.size());
        long i = p_193353_.toLong();

        for (int j = 0; j < p_193351_.size(); j++) {
            CompoundTag compoundtag = p_193351_.getCompound(j);
            loadTick(compoundtag, p_193352_).ifPresent(p_360704_ -> {
                if (ChunkPos.asLong(p_360704_.pos()) == i) {
                    list.add((SavedTick<T>)p_360704_);
                }
            });
        }

        return list;
    }

    public static <T> Optional<SavedTick<T>> loadTick(CompoundTag p_210670_, Function<String, Optional<T>> p_210671_) {
        return p_210671_.apply(p_210670_.getString("i")).map(p_210668_ -> {
            BlockPos blockpos = new BlockPos(p_210670_.getInt("x"), p_210670_.getInt("y"), p_210670_.getInt("z"));
            return new SavedTick<>((T)p_210668_, blockpos, p_210670_.getInt("t"), TickPriority.byValue(p_210670_.getInt("p")));
        });
    }

    private static CompoundTag saveTick(String p_193339_, BlockPos p_193340_, int p_193341_, TickPriority p_193342_) {
        CompoundTag compoundtag = new CompoundTag();
        compoundtag.putString("i", p_193339_);
        compoundtag.putInt("x", p_193340_.getX());
        compoundtag.putInt("y", p_193340_.getY());
        compoundtag.putInt("z", p_193340_.getZ());
        compoundtag.putInt("t", p_193341_);
        compoundtag.putInt("p", p_193342_.getValue());
        return compoundtag;
    }

    public CompoundTag save(Function<T, String> p_193344_) {
        return saveTick(p_193344_.apply(this.type), this.pos, this.delay, this.priority);
    }

    public ScheduledTick<T> unpack(long p_193329_, long p_193330_) {
        return new ScheduledTick<>(this.type, this.pos, p_193329_ + (long)this.delay, this.priority, p_193330_);
    }

    public static <T> SavedTick<T> probe(T p_193336_, BlockPos p_193337_) {
        return new SavedTick<>(p_193336_, p_193337_, 0, TickPriority.NORMAL);
    }
}