package net.minecraft.world.effect;

import com.google.common.collect.Sets;
import java.util.Set;
import java.util.function.ToIntFunction;
import net.minecraft.core.BlockPos;
import net.minecraft.core.Direction;
import net.minecraft.core.particles.ParticleTypes;
import net.minecraft.server.level.ServerLevel;
import net.minecraft.util.RandomSource;
import net.minecraft.world.entity.Entity;
import net.minecraft.world.entity.LivingEntity;
import net.minecraft.world.entity.player.Player;
import net.minecraft.world.level.GameRules;
import net.minecraft.world.level.block.Blocks;

class WeavingMobEffect extends MobEffect {
	private final ToIntFunction<RandomSource> maxCobwebs;

	protected WeavingMobEffect(MobEffectCategory category, int color, ToIntFunction<RandomSource> maxCobwebs) {
		super(category, color, ParticleTypes.ITEM_COBWEB);
		this.maxCobwebs = maxCobwebs;
	}

	@Override
	public void onMobRemoved(ServerLevel level, LivingEntity entity, int amplifier, Entity.RemovalReason reason) {
		if (reason == Entity.RemovalReason.KILLED && (entity instanceof Player || level.getGameRules().getBoolean(GameRules.RULE_MOBGRIEFING))) {
			this.spawnCobwebsRandomlyAround(level, entity.getRandom(), entity.blockPosition());
		}
	}

	private void spawnCobwebsRandomlyAround(ServerLevel level, RandomSource random, BlockPos pos) {
		Set<BlockPos> set = Sets.<BlockPos>newHashSet();
		int i = this.maxCobwebs.applyAsInt(random);

		for (BlockPos blockPos : BlockPos.randomInCube(random, 15, pos, 1)) {
			BlockPos blockPos2 = blockPos.below();
			if (!set.contains(blockPos) && level.getBlockState(blockPos).canBeReplaced() && level.getBlockState(blockPos2).isFaceSturdy(level, blockPos2, Direction.UP)) {
				set.add(blockPos.immutable());
				if (set.size() >= i) {
					break;
				}
			}
		}

		for (BlockPos blockPosx : set) {
			level.setBlock(blockPosx, Blocks.COBWEB.defaultBlockState(), 3);
			level.levelEvent(3018, blockPosx, 0);
		}
	}
}