iphone cocos2d花栗鼠規模物理

Question

在我的應用程序中，當觸摸屏幕時，PhysicalSprite將被添加到游戲層中。 所有PhysicalSprite都將添加到NSMutableArray中。 當數組計數達到5時，我想同時按比例縮小所有添加的PhysicalSprites。

我已經嘗試過，但是沒有用。

請幫助我。

//創建精靈

-(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];
        }
    }
}

我已經嘗試實現phisycsSprite.scale = 0.5; 在更新方法，但不起作用。

Answer 1

從文件CCPhysicsSprite.h

Features and Limitations:
   - Scale and Skew properties are ignored.

如果不縮放精靈，您真的無法縮放精靈。