extends GPUParticles2D

class_name ChargingAnim

@export var top: Vector2
@export var bottom: Vector2

@onready var effect: AnimatedSprite2D = $AnimatedSprite2D

var charging: bool = false
var timer: float = 1

# Called when the node enters the scene tree for the first time.
func _ready():
	pass # Replace with function body.

# Called every frame. 'delta' is the elapsed time since the previous frame.
func _process(delta):
	if charging:
		effect.position = lerp(bottom, top, timer)
	else:
		effect.position = lerp(top, bottom, timer)
	timer = clampf(timer + delta, 0, 1)

func charge(strength: float, element: Data.Element):
	charging = true
	emitting = true
	process_material.orbit_velocity_min = strength / 50
	process_material.orbit_velocity_max = strength / 40
	process_material.scale_min = strength / 5
	process_material.scale_max = strength / 4
	process_material.anim_speed_min = strength / 5
	process_material.anim_speed_max = strength / 4
	timer = 0

func disable():
	charging = false
	emitting = false
	timer = 0