Script for animating tileset by shifting it frame region

atile.gd

class_name AnimatedTile extends Reference


var id: int
var tilemap: TileMap

var frame_region : Rect2
var frame_current : int
var frame_count : int

# timer
var _time : float
var _duration : float


func _init(id: int, tilemap: TileMap, region: Rect2, frame_count: int, duration: float):
	self.id = id
	self.tilemap = tilemap
	self.frame_count = frame_count
	self.frame_region = region
	self._duration = duration

	add_user_signal("animation_finished")


func update(delta: float) -> void:
	_time += delta

	if _time >= _duration:
		tilemap.tile_set.tile_set_region(
			id,
			Rect2(Vector2(frame_region.position.x + frame_current * tilemap.cell_size.x, frame_region.position.y),
			tilemap.cell_size))
		_time = 0
		frame_current += 1
		frame_current %= frame_count
		emit_signal("animation_finished")

ctimer.gd

class_name CTimer extends Reference


var _time_left: float
var time_wait: float

var stopped : bool


func update(delta: float) -> void:
	if stopped : return

	_time_left += delta

	if _time_left >= time_wait:
		_time_left = 0
		stopped = true
		emit_signal("timeout")


func start(time: float) -> void:
	_time_left = 0
	time_wait = time
	stopped = false


func _init():
	add_user_signal("timeout")