cocos2d remove tint

Question

I'm trying to implement a highlight animation to my sprites. The sprite should highlight to a given color and gradually reverse back to its original colors, with the following code:

- (void)highlight {
    CCTintTo *tintAction = [CCTintTo actionWithDuration:0.1 red:255 green:255 blue:255];
    CCTintTo *tintBackAction = [tintAction reverse];

    CCSequence *sequence = [CCSequence actions: tintAction, tintBackAction, nil];
    [self runAction:sequence];
}

Now this function raises an exception as CCTintTo doesn't seem to implement 'reverse', which makes sense. Is there any other way to implement removal of an added tint over an interval, using a CCAction?

Answer 1

You can store previous color before start tint, then just create CCTintTo with initial RGB values.

Answer 2

1. CCSprite's default color is ccWhite, {255, 255, 255}, so if you want to make sprite lighter, you'll have to subclass CCSprite/write shader to use additive coloring.

2. Just tint it back:

   CCColor3B oldColor = sprite.color;
   CCTintTo *tintTo = [CCTintTo actionWithDuration:t red:r green:g blue:b];
   CCTintTo *tintBack = [CCTintTo actionWithDuration:t red:oldColor.r green:oldColor.g blue:oldColor.b];
   [sprite runAction:[CCSequence actions: tintTo, tintBack, nil]];
   

Answer 3

For Cocos2dx (C++)

ccColor3B oldColor = sprite->getColor();
        CCTintTo* action = CCTintTo::create(0.5f, 127, 255, 127);
        CCTintTo* actionReverse = CCTintTo::create(0.5f, oldColor.r, oldColor.g, oldColor.b);;
        sprite->runAction(CCSequence::create(action, actionReverse, NULL));

Works fine Kreiri, thanks! I already gave a plus to you:).