var turn_index = 0

func _process(_delta: float) -> void:
	var refresh = false # whether we need to redraw, update light, and update chunks
	if not player.action is Actions.none: # if the player is going to do an action this frame, set refresh to true
		refresh = true
	if entities.is_empty(): # do nothing if there are no entities
		return
	if turn_index >= entities.size(): # wrap index
		turn_index = 0
	var entity = entities[turn_index] # select entity
	if not is_instance_valid(entity) or not entities.has(entity): # skip dead or invalid entities
		entities.erase(entity)
		return
	if entity.energy <= 0: # recharge and move to next entity
		entity.recharge()
		turn_index += 1
		return
	entity.turn()
	if refresh: # refresh
		redraw()
		update_light(player.position)
		update_chunks()