extends Area2D
class_name ActionArea

const OPACITY = 0.3
const ACTIVATED_COLOR = Color.TURQUOISE
const DEACTIVATED_COLOR = Color.REBECCA_PURPLE

var collision_shape : CollisionShape2D = null
var area_width : float = 40
var area_distance : float = 80

var activated : bool = false :
	set(v):
		var old = activated
		activated = v
		if old != activated:
			queue_redraw()

func _init(
	_area_width : float = 40,
	_area_distance : float = 80	
):
	area_width = _area_width
	area_distance = _area_distance	

func _ready():
	collision_shape = CollisionShape2D.new()
	collision_shape.position.x = area_distance
	collision_shape.shape = CircleShape2D.new()
	collision_shape.shape.radius = area_width
	add_child(collision_shape)

func _process(_delta):
	look_at(get_global_mouse_position())

func _draw():
	draw_circle(
		Vector2(
			area_distance,
			0
		),
		area_width,
		Color((ACTIVATED_COLOR if activated else DEACTIVATED_COLOR), OPACITY)
	)