package net.minecraft.world.entity.monster.breeze;

import net.minecraft.util.Mth;
import net.minecraft.util.RandomSource;
import net.minecraft.world.entity.LivingEntity;
import net.minecraft.world.entity.ai.attributes.Attributes;
import net.minecraft.world.level.ClipContext;
import net.minecraft.world.level.ClipContext.Block;
import net.minecraft.world.level.ClipContext.Fluid;
import net.minecraft.world.phys.Vec3;
import net.minecraft.world.phys.HitResult.Type;

public class BreezeUtil {
	private static final double MAX_LINE_OF_SIGHT_TEST_RANGE = 50.0;

	public static Vec3 randomPointBehindTarget(LivingEntity target, RandomSource random) {
		int i = 90;
		float f = target.yHeadRot + 180.0F + (float)random.nextGaussian() * 90.0F / 2.0F;
		float g = Mth.lerp(random.nextFloat(), 4.0F, 8.0F);
		Vec3 vec3 = Vec3.directionFromRotation(0.0F, f).scale(g);
		return target.position().add(vec3);
	}

	public static boolean hasLineOfSight(Breeze breeze, Vec3 pos) {
		Vec3 vec3 = new Vec3(breeze.getX(), breeze.getY(), breeze.getZ());
		return pos.distanceTo(vec3) > getMaxLineOfSightTestRange(breeze)
			? false
			: breeze.level().clip(new ClipContext(vec3, pos, Block.COLLIDER, Fluid.NONE, breeze)).getType() == Type.MISS;
	}

	private static double getMaxLineOfSightTestRange(Breeze breeze) {
		return Math.max(50.0, breeze.getAttributeValue(Attributes.FOLLOW_RANGE));
	}
}