vista prospettica 3D nel gioco iPhone utilizzando cocos2d

Question

sto sviluppando 'Paper Toss' per iPhone utilizzando cocos2d & Vorrei sapere che come implementare 3D vista prospettica in questo, perché mentre stiamo gettando la palla di carta al raccoglitore, abbiamo per ottenere il 3D feel.I'am allegando il codice che ho fatto, utilizzando questo ho avuto una linea retta motion.Please aiutarmi ..

*- (void)ccTouchesEnded:(NSSet *)touches withEvent:(UIEvent *)event { 

// Choose one of the touches to work with 
UITouch *touch = [touches anyObject]; 
CGPoint location = [touch locationInView:[touch view]]; 
location = [[CCDirector sharedDirector] convertToGL:location]; 

// Set up initial location of projectile 
CGSize winSize = [[CCDirector sharedDirector] winSize]; 
CCSprite *projectile = [CCSprite spriteWithFile:@"ball.png" 
              rect:CGRectMake(0, 0, 40, 40)]; 
projectile.position = ccp(winSize.width/2,20); 

// Determine offset of location to projectile 
int offX = location.x - projectile.position.x; 
int offY = location.y - projectile.position.y; 

// Bail out if we are shooting down or backwards 
if (offY <= 0) return; 

// Ok to add now - we've double checked position 
[self addChild:projectile]; 

// Determine where we wish to shoot the projectile to 
int realY = winSize.height + (projectile.contentSize.width/2); 
float ratio = (float) offX/(float) offY; 
int realX = (realY * ratio) + projectile.position.x; 
CGPoint realDest = ccp(realX, realY); 

// Determine the length of how far we're shooting 
int offRealX = realX + projectile.position.x; 
int offRealY = realY + projectile.position.y; 
float length = sqrtf((offRealX*offRealX)+(offRealY*offRealY)); 
float velocity = 480/1; // 480pixels/1sec 
float realMoveDuration = length/velocity; 

// Move projectile to actual endpoint 
[projectile runAction:[CCSequence actions: 
         [CCMoveTo actionWithDuration:realMoveDuration position:realDest], 
         [CCCallFuncN actionWithTarget:self selector:@selector(spriteMoveFinished:)], 
         nil]]; 
//add to the projectiles array 
projectile.tag = 2; 
[_projectiles addObject:projectile]; 

} *

Answer 1

Infine ho completato Paper Toss utilizzando cocos2d.I implementato curva di Bézier e qui è,

// Bezier curve control points 
    bezier.controlPoint_1 = ccp(location.x-CONTROL_POINT1_X, CONTROL_POINT1_Y); 
    bezier.controlPoint_2 = ccp(location.x-CONTROL_POINT2_X, CONTROL_POINT2_Y); 
    bezier.endPosition = ccp(location.x-CONTROL_POINT1_X,distance); 

    // Motion along bezier curve and finally call a function 
    [projectile runAction:[CCSequence actions: 
          [CCAutoBezier actionWithDuration:DEFAULT_ACTION_DURATION bezier:bezier], 
          [CCCallFuncN actionWithTarget:self selector:@selector(collisionCheck:)], nil]]; 

Answer 2

Basta scalare l'immagine sprite quindi diventa più piccolo il "più lontano" che è.

Answer 3

Ehi si può usare per bezier curve3d vista prospettica in cocos2d.

bezier.controlPoint_1 = ccp(location.x-CONTROL_POINT1_X, CONTROL_POINT1_Y); 
    bezier.controlPoint_2 = ccp(location.x-CONTROL_POINT2_X, CONTROL_POINT2_Y);