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在我的应用程序中，触摸屏幕时，physicssprite将被添加到游戏图层中。 所有物理sprites将被添加到一个NSMutableArray。 当数组数量达到5时，我想同时缩小所有添加的物理Sprites。iphone cocos2d花栗鼠尺度physicsSprite
我试过但没有& t工作。
请帮帮我。
//创建子画面
-(void) addNewSpriteAtPosition:(CGPoint)pos
{
PhysicsSprite *sprite = [PhysicsSprite spriteWithFile:@"sprite.png"];
sprite.position = pos;
sprite.tag = 1;
[sprites addObject:sprite];
[self addChild: sprite];
int num = 4;
cpVect verts[] = {
cpv(-20,-20),
cpv(-20, 20),
cpv(20, 20),
cpv(20,-20),
};
cpBody *body = cpBodyNew(1.0f, cpMomentForPoly(1.0f, num, verts, CGPointZero));
cpBodySetPos(body, pos);
cpSpaceAddBody(space_, body);
cpShape* shape = cpPolyShapeNew(body, num, verts, CGPointZero);
cpShapeSetElasticity(shape, 0.5f);
cpShapeSetFriction(shape, 0.5f);
cpSpaceAddShape(space_, shape);
[sprite setPhysicsBody:body];
NSLog(@"array size :%i",[sprites count]);
}
- (void)ccTouchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
{
for(UITouch *touch in touches) {
CGPoint location = [touch locationInView: [touch view]];
location = [[CCDirector sharedDirector] convertToGL: location];
//add sprite
[self addNewSpriteAtPosition: location];
}
//scale sprites
if([sprites count]>5){
//[self terminateGame];
for(int i=0;i<[sprites count];i++){
PhysicsSprite *PS = [PhysicsSprite spriteWithFile:
[sprites objectAtIndex:i]];
id mAction1 = [CCScaleTo actionWithDuration:0.5 scaleX:0.5 scaleY:0.5];
[PS runAction:mAction1];
}
}
}
我已经tryed实施phisycsSprite.scale = 0.5;在更新方法但不起作用。