brackeys-12/water_level.gd

extends TileMapLayer

var movement_tween
var last_level = 0

@export var level: int

func _ready() -> void:
	Triggerer.listen("flood_level", _on_flood_level)


func _on_flood_level(data):
	var value = int(data.value)
	var oldvalue = last_level
	
	if value < level and visible:
		if movement_tween:
			movement_tween.kill()
		
		movement_tween = create_tween()
		movement_tween.set_ease(Tween.EASE_OUT)
		movement_tween.set_trans(Tween.TRANS_BACK)
		movement_tween.tween_interval(((oldvalue - level)) * 0.1)
		movement_tween.tween_property(self, "position:y", 8, 0.1)
		movement_tween.tween_callback(func():
			visible = false
		)
	elif value >= level and not visible:
		if movement_tween:
			movement_tween.kill()
		
		movement_tween = create_tween()
		movement_tween.set_ease(Tween.EASE_OUT)
		movement_tween.set_trans(Tween.TRANS_BACK)
		movement_tween.tween_interval((level - oldvalue) * 0.1)
		movement_tween.tween_callback(func():
			position.y = 8
			visible = true
		)
		movement_tween.tween_property(self, "position:y", 0, 0.1)
	
	last_level = value