CODEWITHSUNDEEP
mathcocos2d-iphonespritegame-physics
Pablo Ignacio Caruso
Pablo Ignacio Caruso

Reputation: 11

Curve Sprite Movement COCOS2D

I'm trying with no luck to move a sprite position in an simetric curve way with the touch drag. So far I use the following code with no luck

-(BOOL) ccTouchBegan:(UITouch*)touch withEvent:(UIEvent *)event
{
lastTouchLocation = [MultiLayer locationFromTouch:touch];   
return YES;
}

-(void) ccTouchMoved:(UITouch*)touch withEvent:(UIEvent *)event
{
CGPoint currentTouchLocation = [MultiLayer locationFromTouch:touch];
moveTo = ccpSub(lastTouchLocation, currentTouchLocation);
lastTouchLocation = currentTouchLocation;
} 

-(void) update:(ccTime)delta 
{       
CCSprite* sprite = [sprites objectAtIndex:1];
if (moveTo.x != 0){
    float X = sprite.position.x + moveTo.x;
    float Y =  sprite.position.y + (pow(X,2));
    sprite.position = CGPointMake(X, Y);
}
}

The curve way i'm trying to simulate is in the form y=x^2. Is this posible? Thanks in advance!

Upvotes: 1

Views: 1887

Answers (1)

Andrew
Andrew

Reputation: 24846

Yes it's possible. You can do it manually as your are trying, but it's better to use a built-in solution. There is a CCJumpTo and CCJumpBy actions in cocos2d engine. They are created for parabolic moves. Use them

Upvotes: 1

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