How to allow touching only in specific area in the scene?

Question

I want to set touching to be only in part of the screen i have tried to add node layer in the part of the screen that not allowed to be touched and disable the user interactions

_mainLayer.userInteractionEnabled = NO;

but it didnt work any idea how to do it ?

Answer 1

Here's an example of how you can limit touch events to specific regions:

Swift

override func touchesBegan(touches: Set<NSObject>, withEvent event: UIEvent) {
    for touch in (touches as! Set<UITouch>) {
        let location = touch.locationInNode(self)

        switch (location) {
        case let point where CGRectContainsPoint(rect, point):
            // Touch is inside of a rect
            ...
        case let point where CGPathContainsPoint(path, nil, point, false):
            // Touch is inside of an arbitrary shape
            ...
        default:
            // Ignore all other touches
            break
        }
    }
}

Obj-C

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

    for (UITouch *touch in touches) {
        CGPoint location = [touch locationInNode:self];

        if (CGRectContainsPoint(rect, location)) {

        }
        else if (CGPathContainsPoint(path, nil, location, false)) {

        }
    }
}