SpriteKit GameOverlay

Question

If 2 objects hit each other, a GameOver layer should appear, but it should be transparent. That means, the whole Game Scene should be showing, with a transparent GameOver and the Score etc. I can config. the Scene by myself, but I don't know how to add it in my MyScene.h.

The code for the 2 objects collision :

 - (void)didBeginContact:(SKPhysicsContact *)contact

{ SKPhysicsBody *firstBody, *secondBody;

if (contact.bodyA.categoryBitMask < contact.bodyB.categoryBitMask)
{
    firstBody = contact.bodyA;
    secondBody = contact.bodyB;
}
else
{
    firstBody = contact.bodyB;
    secondBody = contact.bodyA;
}

if ((firstBody.categoryBitMask & StoneCategory) != 0 &&
    (secondBody.categoryBitMask & HumanCategory) != 0)
{
    // Here should be some code
}

}

Answer 1

@interface yourScene()
@property (strong, nonatomic) SKSpriteNode *scoreMenu;
@end

...

if ((firstBody.categoryBitMask & StoneCategory) != 0 &&
(secondBody.categoryBitMask & HumanCategory) != 0)
{
    self.scoreMenu = [SKSpriteNode spriteNodeWithImageNamed:@"ScoreMenuPicture.png"];
    self.scoreMenu.position = CGPointMake(CGRectGetMidX(self.frame),     CGRectGetMidY(self.frame));
    self.scoreMenu.name = @"scoreMenu";
    self.scoreMenu.yScale = 0.7;
    self.scoreMenu.xScale = 0.5;
    self.scoreMenu.alpha = 0.7;
    [self addChild:self.scoreMenu];
}

adjust the y scale, x scale and alpha to your preference accordingly.

Another remedy: Create a image with any image editing software (gimp etc) with alpha background and add it to the scene