cocos2d for iPhone

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

1. 

   julesv
   Member

   Hi, I'ma beginner and I'm making http://www.puzzle-light-up.com/ as my first project. I created a tilemap, then a .tmx then loaded it onto the screen. If you check out the game, you will see that every time you touch a square which is a blank one (not filled in), it will have a lightbulb in it. I have a good light bulb picture of the correct dimension. How would I make it so when I touch the square it turns into a different tile/picture? Also if you could extend on this and tell me how I could differentiate between the squares which can be changed and the others.

   Thanks you :D

   Posted 1 year ago #
2. 

   patrickC
   Member

   In these cases it's always a good idea to take a look at the documentation first:

   http://www.cocos2d-iphone.org/api-ref/latest-stable/interface_c_c_t_m_x_layer.html

   There you'll find answers to all your questions.
   I'd say you're interested in:
   

   - (unsigned int) tileGIDAt:(CGPoint)tileCoordinate  	   	
   
   returns the tile gid at a given tile coordinate. if it returns 0, it means that the tile is empty. This method requires the the tile map has not been previously released (eg. don't call [layer releaseMap])

   AND
   

   - (void) setTileGID:(unsigned int)gid at:(CGPoint)tileCoordinate	 
   
   sets the tile gid (gid = tile global id) at a given tile coordinate. The Tile GID can be obtained by using the method "tileGIDAt" or by using the TMX editor -> Tileset Mgr +1. If a tile is already placed at that position, then it will be removed.

   Once you read the manual and understand the tools, if something's not clear to you then you can ask more questions and people would be happy to help.
   Nothing beats doing your own homework first and showing that you tried before you asked :)
   Good luck!

   Posted 1 year ago #

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