Question

i try to return a CGPoint but i do something wrong:

Here is my method:

- (CGPoint)calculatePointOnCircleFrom:(CGPoint)pointA PointB:(CGPoint)pointB radius:(float)rd {
    float sryy = pointA.y - pointB.y;
    float srxx = pointA.x - pointB.x;
    float sry = pointA.y + sryy;
    float srx = pointA.x + srxx;
    float kpx = pointA.x + cos(atan2(pointA.y - sry, pointA.x - srx)) * rd;
    float kpy = pointA.y + sin(atan2(pointA.y - sry, pointA.x - srx)) * rd;

    return CGPointMake(kpx, kpy);
}

The code in the method works fine but i do something wrong with the initialization.

Here i call the method:

    point1.position = [self calculatePointOnCircleFrom:Player.position PointB:touchPos radius:64]; 

and get fooling error: “incompatible type for argument 1 of ‘setPosition:'”

Answer 1

There’s probably also a warning that it can’t find the method declaration. It sounds like the compiler doesn’t know what type the method returns and is defaulting to id.