How to use tween with the region_rect property

Question

Hi everybody,

I'm trying to animate the region_rect property of a sprite with a tween node, and so far, it doesn't work.

I was able to animate other properties, but not this one, maybe because it uses a Rect2 var?

this is what I use:

var sprite = getnode("Sprite")
var currentcoordinates = sprite.getregionrect()
var targetcoordinates = currentcoordinates
targetcoordinates.pos.x += 280
tween.interpolateproperty(sprite, "regionrect", currentcoordinates, targetcoordinates, 1.5, Tween.TRANSEXPO, Tween.EASE_OUT, 0)

Answer 1

A region rect cannot be interpolated. In cases like this, you can use interpolate_method() instead and send it the start and stop positions of the rectangle:

tween.interpolate_method(self, "_tween_region_rect", current_coordinates, target_coordinates, 1.5, Tween.TRANS_EXPO, Tween.EASE_OUT, 0)

func _tween_region_rect(pos):
    var rect = sprite.get_region_rect()
    rect.pos = pos
    sprite.set_region_rect(rect)

Comments

Thank you very much, it works perfectly!
(just had to add the missing _ in TRANS_EXPO)