cocos2d for iPhone

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

1. 

   indy2005
   Member

   Can something be invisible, or have its alpha set to zero (or be a transparent png) and still receive touches?

   Regards

   i

   Posted 1 year ago #
2. 

   riq
   Key Master

   yes. the concept of touches is not associated with visibility.

   Posted 1 year ago #
3. 

   indy2005
   Member

   thanks, whats the best method to make something transparent?

   Posted 1 year ago #
4. 

   Neo-Dragon
   Member

   I use spritename.opacity=0; to hide any sprites.

   Posted 1 year ago #
5. 

   edge17
   Member

   I think you might be better off setting sprite.visible=NO. I think changing opacity still incurs overhead from the blending operation, whereas visible=NO won't bother attempting to render the sprite. Someone please feel free to correct me if I'm wrong, I'm not any kind of expert in openGL

   Posted 1 year ago #
6. 

   indy2005
   Member

   if something is visible = NO, I assume you can still do rect intersections?

   Posted 1 year ago #
7. 

   indy2005
   Member

   both work great by the way, so thx. Dont think its an overhead as its just one HUD sprite, sat under a visible sprite (dont ask)

   Posted 1 year ago #
8. 

   edge17
   Member

   @indy2005: i'd assume touches would register as long as isTouchEnabled=YES

   Posted 1 year ago #

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