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POHow can i move continuos enemy sprite top to bottom???
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copied!<p>Here is some problem which I can not understand... I want to move one enemy sprite top to bottom but enemy sprite is in different class and can not move it.</p> <p>Here is code of add sprite in GameScene through Enemyscene This is code of Enemy.m</p> <pre><code>#import "Enemy.h" #import "GameScene.h" @implementation Enemy @synthesize theGame,newSprite,lastTimeFired,firingSpeed,fireInterval,movementSpeed,launched,hp,maxHp; -(id)initWithGame:(GameLayer *)game { self=[super init]; if(self !=nil) { CGSize size=[[CCDirector sharedDirector]winSize]; self.theGame=game; self.lastTimeFired=0; NSLog(@"Enemy INIT "); int random=arc4random()%3+1; newSprite=[CCSprite spriteWithFile:[NSString stringWithFormat:@"enemy%d.png",random]]; newSprite.position=ccp(100,200); [theGame addChild:newSprite]; switch (random) { case 1: movementSpeed=5; fireInterval=-1; break; case 2: movementSpeed=10; fireInterval=-1; break; case 3: movementSpeed=7; fireInterval=-1; break; case 4: movementSpeed=3; fireInterval=-1; break; default: movementSpeed=5; fireInterval=-1; break; } } return self; } </code></pre> <p>And I want to move this Enemy sprite into GameScene layer and here is the code GameScene.m</p> <pre><code>#import "GameScene.h" #import "Hero.h" #import "Enemy.h" #define STARTING_LIVES 3; @implementation GameScene -(id) init { self =[super init]; if(self !=nil) { [self addChild:[GameLayer node]]; } return self; } -(void) dealloc { [super dealloc]; } @end @implementation GameLayer -(id)init { if(self=[super init]) { Hero *hero=[[Hero alloc]initWithGame:self]; Enemy *e=[[Enemy alloc]initWithGame:self]; lastTimeEnemyLaunched=0; enemyInterval=20; lives=3; [self schedule:@selector(doThis)]; NSLog(@"After Schedule"); } return self; } -(void)doThis { Enemy *e; [e update]; } @end </code></pre> <p>Please help me i am new in cocos2d game development... when i am run this code in simulator than it gives on error </p> <p>this code gives EXC_BAD_ACCESS</p> <pre><code> -(void) update: (ccTime) dt { if( elapsed == - 1) elapsed = 0; else elapsed += dt; if( elapsed >= interval ) { impMethod(target, selector, elapsed); //this code gives EXC_BAD_ACCESS elapsed = 0; } } </code></pre> <p>Please Help me.... Thanks</p>

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