KingIsulgard / Cocos2D-CCMask-class

A CCMask class for Cocos2D. Uploaded this in a forum a few years ago. In the meanwhile others have already picked up on it, so you might want to google for a newer version.

Cocos2D CCMask Class

Cocos2D is a great framework for game development. Sadly it didn't contain one of the most required features for game development, masking. I've written a class CCMask which makes masking in Cocos2D fairly easy.

Overview

• Features
• Example
• Redraw
• Donation
• License
• Warranty

Features

• Generates a masked image based on a mask of any shape and the image to be masked.
• The ability to redraw the masked image if the mask or image have repositioned or changed.

Example

You just have to define an object and a mask. And that's it!

Insert the CCMask class into your project and use the class just as the example below:

  // Ask director the the window size
  
  CGSize size = [[CCDirector sharedDirector] winSize];
  
  // Create an object and a mask
  
  object = [CCSprite spriteWithFile:@"Ball.png"];
  
  mask = [CCSprite spriteWithFile:@"star.png"];
  
  // Set their positions
  
  object.position = ccp(size.width * 0.5f, size.height * 0.5f + 310);
  
  mask.position = ccp(size.width * 0.5f, size.height * 0.5f + 310);
  
  // Create a masked image based on the object and the mask and add it to the screen
  
  CCMask *masked = [CCMask createMaskForObject: object withMask: mask];
  
  [self addChild: masked];

Redraw

You can also use redrawMasked is you feel the urge to rerender the mask, for example after you moved it.

  [masked redrawMasked];

Donate

You can support contributors of this project individually. Every contributor is welcomed to add his/her line below with any content. Ordering shall be alphabetically by GitHub username.

Please consider a small donation if you use CCMask in your projects. It would make me really happy.

• @KingIsulgard: !

License

The license for the code is included with the project; it's basically a BSD license with attribution.

You're welcome to use it in commercial, closed-source, open source, free or any other kind of software, as long as you credit me appropriately.

Warranty

The code comes with no warranty of any kind. I hope it'll be useful to you (it certainly is to me), but I make no guarantees regarding its functionality or otherwise.