cocos2d for iPhone

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

1. 

   nories
   Member

   Hello there, I'm new to developing on the iPhone and cocos2d.
   What I'm trying to make is a game like Knight OnRush. I am not sure how to start and really hope if there was some kind of examples I can refer to.
   What I have thought is to have 3 layers.
   3rd Layer which is at the back, the background. How do I make the background loop itself so that the background won't turn black after it has scrolled finish to the right?
   2nd Layer in the middle, is the Sprite layer, where I have the main character and some objects.
   1st Layer will be the Controls, Menus etc...

   Is my concept correct? Please help me as I'm a newbie in coding. Thanks!

   Posted 1 year ago #
2. 

   aerostat
   Member

   You could just stop the background from moving once it gets to the end. Or if that is not possible, you would need two background images on layer 3, and you tack the one that is not currently visible onto the end of the visible one that is about to be displayed on the screen as it moves, repeating that over and over again.

   Posted 1 year ago #
3. 

   pabloruiz55
   Member

   I am doing what aerostat says and it works fine. Have 2 images side by side, both moving to the left (if you are supposed to be moving right) when they reach the end (stop being seen)move them to the other side at the end of the rightmost one.

   Posted 1 year ago #
4. 

   nories
   Member

   Thank you aerostat and pabloruiz for your replies.
   I don't quite understand how am I going to implement it.
   So now I will create 2 background images, and move both to the left. The coding will be like this?
   // I create the background sprite
   CCSprite *bg1 = [CCSprite spriteWithFile:"@bg1.png"];
   CCSprite *bg2 = [CCSprite spriteWithFile:"@bg2.png"];

   // Position the backgroind
   bg1.position = ccp(x,y);
   bg2.position = ccp(x,y);

   //Move the background to the left

   id Moveleft [.....];

   Sorry for my unclear question! I'm really stuck at this...

   Posted 1 year ago #
5. 

   abitofcode
   Moderator

   If you take the move an item off the screen and push it back over to the other side approach, bear in mind that moving an item that is e.g 320 * 480 is actually represented in memory as 512 * 512 (up to nearest powers of 2, don't need to be square).

   We took the approach of moving 128 * 128 blocks, though I'd probably just use a tilemap now.

   Check the videos on tilemaps and parallax on the following site;

   http://paulsonapps.wordpress.com/

   Posted 1 year ago #
6. 

   nories
   Member

   I have another question, if I use tilemap, how do I repeat the tiles so that it won't end? It is not possible for me to create a tilemap which is very long in width. What I'm thinking is to loop the ground tiles after it has finished but I have no idea how to code it. Any help is deeply appreciated! Thanks!

   Posted 1 year ago #

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