A fast, easy to use, free, and community supported 2D game engine
oscarmk
Member
Hello,
I have a Sprite that I am constantly repositioning, and I would like to adjust the scale of the Sprite every time it is repositioned, first I tried ScaleBy, followed by reverse by and then again a new Scale By (so that I can scale based on original form), however is this the "right" way to do this?.
Additionally how can i get the new width of the sprite?, I noticed even though the image is scaled the width of the contentSize stays the same.
-Oscar
a) you can modify the sprite "manually", without using actions like:
float originalScale = sprite.scale;
//
//
sprite.scale = newScale;
// and
sprite.scale = originalScale;b)
contentSize returns the untransformed size. scaling doesn't modify the contentSize.
// new width. It doesn't take into account possible transformations of its ancestors
float newWidth = [sprite contentSize].width * sprite.scaleX;
SledKnight
Member
Hello,
What would be the difference between these (I used the second style, then saw this post and was wondering if I should change it):
float newWidth = [sprite contentSize].width * sprite.scaleX;
&
float newWidth = sprite.contentSize.width * sprite.scaleX;
I'm pretty new to iPhone Dev and Cocos2d, so pardon me if it seems like a dumb question, LOL. :)
Thanks!
@SledKnight: as you've typed them, there is no functional difference, it's just a stylistic choice. That said, dot notation for property accessors is relatively new for Objective-C, and there are some pitfalls you should be aware of... this is a good read: http://weblog.bignerdranch.com/?p=83
@DetectiveCakes nice link! Interesting read, although I think I prefer how Chris Hanson looks at the subject http://eschatologist.net/blog/?p=160 (which was linked in the comments of your link).
srikanth
Member
@riq,
I have 10 images of same size. I need to show the ball animation. The ball animation should start image1 and should end with image10. I want to show that the ball is travelled far from the throwing position. So, I need to show that the images at the end of animation are small. For this I manually resized the images of the ball.
How can I do it programatically.
Thank you.
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