package net.minecraft.world.entity.ai.sensing;

import com.google.common.collect.ImmutableSet;
import java.util.Set;
import net.minecraft.server.level.ServerLevel;
import net.minecraft.world.damagesource.DamageSource;
import net.minecraft.world.entity.Entity;
import net.minecraft.world.entity.LivingEntity;
import net.minecraft.world.entity.ai.Brain;
import net.minecraft.world.entity.ai.memory.MemoryModuleType;

public class HurtBySensor extends Sensor<LivingEntity> {
    @Override
    public Set<MemoryModuleType<?>> requires() {
        return ImmutableSet.of(MemoryModuleType.HURT_BY, MemoryModuleType.HURT_BY_ENTITY);
    }

    @Override
    protected void doTick(ServerLevel p_26670_, LivingEntity p_26671_) {
        Brain<?> brain = p_26671_.getBrain();
        DamageSource damagesource = p_26671_.getLastDamageSource();
        if (damagesource != null) {
            brain.setMemory(MemoryModuleType.HURT_BY, p_26671_.getLastDamageSource());
            Entity entity = damagesource.getEntity();
            if (entity instanceof LivingEntity) {
                brain.setMemory(MemoryModuleType.HURT_BY_ENTITY, (LivingEntity)entity);
            }
        } else {
            brain.eraseMemory(MemoryModuleType.HURT_BY);
        }

        brain.getMemory(MemoryModuleType.HURT_BY_ENTITY).ifPresent(p_375080_ -> {
            if (!p_375080_.isAlive() || p_375080_.level() != p_26670_) {
                brain.eraseMemory(MemoryModuleType.HURT_BY_ENTITY);
            }
        });
    }
}