cocos2d for iPhone

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

1. 

   Anson
   Member

   This isn't a cocos2d specific question, but I'd like to know, anyway.

   I would like to great a new sprite through this code.
   

   if (count < max) {
   		count++;
   	sprite = [CCSprite spriteWithFile: @"tail.png"];
   	sprite.position = ccp( 100, 500 );
   	[self addChild:sprite;
   	}

   max and count are integers
   How can I have a new sprite created with the "count" integer appended on the hackTail sprite? Like every time this code was run, it would creating sprites like "sprite1", "sprite2", and so on. And also, how would I be able to check if sprite1 and sprite2 existed and use have them run actions. I guess the main question is: how do I put another value into the name of a to-be-newly-created value?

   Thanks.

   Posted 1 year ago #
2. 

   Dragyn
   Member

   As far as I know, you can't use variables in object names. The usual way to handle this would be to create an array to hold all of the CCSprite objects you create. From there, you can then refer to the sprites based on their position in the array.

   To see how to do this in more detail, check out Ray's tutorial here. Under the section "Collision Detection" he shows how to track sprites using arrays.

   Posted 1 year ago #
3. 

   Benihana
   Member

   Your question is quite broad, and with time you won't even need to think about it. In the meantime, it would help us to know what your intent is when it comes to making those sprites.

   If you are creating a player sprite which has entirely different actions being run on it, you will want to create and keep a reference to that sprite. You would do so by creating a CCSprite *player; (a CCSprite pointer) in the interface of your layer or scene. You then initialize and set it the same way you did above. Then, you'd create your enemies and store them in an array, as Dragyn explained.

   There are other ways to do this, but this is probably the easiest to work with, while still being dynamic (meaning you can create as many as you like at runtime and put them in the array).

   Posted 1 year ago #
4. 

   Anson
   Member

   Thanks for the tutorial link, Dragyn. I've got it working now.

   The sprites were just images that would be moved around (sort of like a snake thing).

   Posted 1 year ago #
5. 

   Anson
   Member

   Using the tutorial, I can have all sprites in the array run an action. How would I have each sprite follow the sprite before it in the array? Like the game Snake's motion. I am thinking that I would individually tell each sprite in the array to move to the preceding sprite's location. Is this possible and there a better way to do this? Thanks.

   Posted 1 year ago #
6. 

   Benihana
   Member

   http://www.cocos2d-iphone.org/forum/topic/11517

   Posted 1 year ago #

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