extends BulletBase
class_name BlueCrystalBullet

var tracer: EntityBase = null
var canTrace: bool = true
var speedBoost: float = 0
var splitRate: float = 0

@onready var trail: GPUParticles2D = $%trail

func ai():
	if is_instance_valid(tracer):
		var tracker = tracer.getTrackingAnchor()
		var targetAngle = position.angle_to_point(tracker)
		trail.rotation = - Vector2.from_angle(rotation).angle_to(Vector2.from_angle(targetAngle)) / (speed / initialSpeed)
		if canTrace:
			PresetBulletAI.trace(self , tracker, 0.07)
	else:
		trail.rotation = 0
	speed += 0.1 * (1 + speedBoost)
	PresetBulletAI.forward(self , rotation)
func destroy(_beacuseMap: bool):
	var eff = EffectController.create(ComponentManager.getEffect("BlueCrystalExplosion"), global_position)
	eff.rotation = rotation
	eff.shot()
func succeedToHit(_dmg: float, entity: EntityBase):
	if entity == tracer:
		canTrace = false
	if MathTool.rate(splitRate):
		for diamond in BulletBase.generate(ComponentManager.getBullet("Diamond2"), entity, position, deg_to_rad(randf_range(0, 360))):
			if diamond is Diamond2Bullet:
				diamond.baseDamage = baseDamage * 0.8
				diamond.parent = self
				diamond.penerate += penerate