cocos2d for iPhone

A fast, easy to use, free, and community supported 2D game engine

1. 

   redsky
   Member

   Howdy, been working on a tower defense game for a bit and would like to draw some borders around my sprites to assist with collision detection.

   My class hierarchy looks like this right now.

   NSObject > TAtlasSprite > Creep

   TAtlasSprite is just an atlas sprite that can receive touch events.
   Creep represents a guy trying to run through my field of towers.

   Creep is instantiated and added to the layer. I can see it, touch it, that all works fine. But I would like to be able to draw a border around it and I'm not sure where to stick the draw method.

   I changed TAtlasSprite to inherit from cocosnode and i thought if I added a draw method to creep then it might get called, but it doesn't.

   I'm clearly missing a piece to the puzzle! What am I doing wrong? Thanks

   If it helps, I'm using cocos2d 0.73. I don't care if it draws over or under my sprite, I just want to see a border.

   Posted 2 years ago #
2. 

   Steve Oldmeadow
   Administrator

   The draw method on AtlasSprites doesn't get used. The AtlasSpriteManager draws all the AtlasSprites in one hit - this is one of the reasons it is so fast. You could iterate over all your AtlasSprites in the draw method of a layer and draw the border rectangles there, however, if you have overlapping sprites it may not be ideal as the borders will be drawn above all the sprites.

   Posted 2 years ago #
3. 

   redsky
   Member

   I was able to make your suggestion work for me. I tip my beer to you, sir.

   Posted 2 years ago #

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