extends EntityBase
class_name Kernyr

var attack1Angle = 0
var attack0State = 0
var attack2Start = 0

func register():
	fields[FieldStore.Entity.MAX_HEALTH] = 2000
	fields[FieldStore.Entity.OFFSET_SHOOT] = 20
	attackCooldownMap[0] = 2000
	attackCooldownMap[1] = 100
	attackCooldownMap[2] = 10000
	attackCooldownMap[3] = 4500
	attackMutexes = [2]
func ai():
	for i in 3:
		tryAttack(i, [2])
	# tryAttack(3)
func attack(type: int):
	if type == 0:
		for i in randi_range(7, 16):
			BulletBase.generate(ComponentManager.getBullet("Diamond"), self , position + MathTool.sampleInCircle(20), rotation + deg_to_rad(randf_range(-90, 90)))
		var states = [
			Vector2(-1, 1),
			Vector2(1, 1),
			Vector2(1, -1),
			Vector2(-1, -1)
		]
		await sprintTo(currentFocusedBoss.position + 400 * states[attack0State % len(states)], 0.1)
		attack0State += 1
		BulletBase.generate(ComponentManager.getBullet("HeavyCrystal"), self , findWeaponAnchor("normal"), position.angle_to_point(currentFocusedBoss.position))
	elif type == 1:
		BulletBase.generate(
			ComponentManager.getBullet("Yangyi"),
			self ,
			position,
			attack1Angle
		)
		attack1Angle += deg_to_rad(360.0 / 20)
	elif type == 2:
		var anchor = currentFocusedBoss.position
		var radius = 600
		var count = 10.0
		var i = 0
		var currentAngle = 0
		var time = 500.0
		await sprintTo(anchor + Vector2(0, -radius), 0.1)
		attack2Start = timeLived()
		while timeLived() - attack2Start <= time:
			var targetAngle = deg_to_rad(i / count * 360.0 - 90)
			currentAngle = deg_to_rad((timeLived() - attack2Start) / time * 360.0 - 90)
			position = anchor + Vector2.from_angle(currentAngle) * radius
			if currentAngle >= targetAngle:
				i += 1
				for bullet in BulletBase.generate(
					ComponentManager.getBullet("Egg"),
					self ,
					position,
					0
				):
					if bullet is EggBullet:
						bullet.look_at(anchor)
			await TickTool.frame()
		await TickTool.millseconds(2000)
		await chargeUp()
	elif type == 3:
		BulletBase.generate(ComponentManager.getBullet("Bengbeng"), self , position, 0)