cocos2d for iPhone

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

1. 

   EasyDev
   Member

   Hey developers, I got a problem. I want my "soucoupe" sprite to go first to the right edge of the screen and i want it to increase its .y position at the same time, after that, I want my sprite to go to the left edge of the screen and increasing its .y position this time too. I want it to repeat this action forever. So, I tried to to it, here is my code :

   soucoupe = [CCSprite spriteWithFile:@"Soucoupe.png"];
   	soucoupe.position = ccp(size.width/2, size.height/2);
   	[self addChild:soucoupe z:1 tag:kTagSoucoupe];
   
   	id actionMoveRight = [CCMoveTo actionWithDuration:1.5 position:ccp(320-soucoupe.contentSize.width/2, soucoupe.position.y)];
   	id actionMoveLeft = [CCMoveTo actionWithDuration:1.5 position:ccp(0+soucoupe.contentSize.width/2, soucoupe.position.y)];
   
   	id actionMoveUp = [CCMoveTo actionWithDuration:5 position:ccp(soucoupe.position.x, size.height+soucoupe.contentSize.height/2)];
   
   	id actionMoveRightUp = [CCSpawn actions:actionMoveRight, actionMoveUp, nil];
   	id actionMoveLeftUp = [CCSpawn actions:actionMoveLeft, actionMoveUp, nil];
   
   	[soucoupe runAction:[CCRepeatForever actionWithAction:[CCSequence actions:actionMoveRightUp, actionMoveLeftUp , nil]]];

   May I change it ? Did I do something wrong ? Thanks in advance for your help !

   Posted 1 year ago #
2. 

   letmeknow
   Member

   Read cocos2d examples. They are just in front of your eyes, don't they ?
   If not run the file name "cocos2d-iphone.xcodeproj"

   Posted 1 year ago #
3. 

   EasyDev
   Member

   If I ask the question it's because I didn't found the solution. You really think that I could write this code by myself without reading the examples ? Well if you don't want to help me, don't. But don't decrease me.

   Posted 1 year ago #
4. 

   skyhawk
   Member

   how rude.

   Anyways, you need to apply the 2 actions (move up and move right/move left) at the same time, and then make a sequence out of that.

   by making a sequence out of move up and move right/left, you are saying execute one after the other..

   Posted 1 year ago #
5. 

   EasyDev
   Member

   Well, I don't really know if I understood correctly what you tried to explain me. Tell me if not. But I think that I already did what you are speaking about :

   The actions moveUp and moveRight /moveLeft and moveUp are grouped, there :

   id actionMoveRightUp = [CCSpawn actions:actionMoveRight, actionMoveUp, nil];
   id actionMoveLeftUp = [CCSpawn actions:actionMoveLeft, actionMoveUp, nil];

   And then, I tell to soucoupe to run both actions one after another : [soucoupe runAction:[CCRepeatForever actionWithAction:[CCSequence actions:actionMoveRightUp, actionMoveLeftUp , nil]]];

   Thanks for your help :) Sorry for being rude, I'm a bit confused today.

   EDIT : I found the solution, in a tick method, I putted this code :

   soucoupe.position = ccp(soucoupe.position.x + decalSoucX , soucoupe.position.y + decalSoucY);
   
   if (soucoupe.position.x >= 320-soucoupe.contentSize.width/2 || soucoupe.position.x <= 0+soucoupe.contentSize.width/2) {	decalSoucX = -decalSoucX;
   	}

   Posted 1 year ago #

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