how can i display score in other scene? - objective-c

Question

I have to show score with SKLabel in gameOverScene. how can i show score in GameOverScene Label? I am tried, please help me.
My game scene codes here. You can see all details about score in down stair.
MyScene.m
#interface MyScene ()<SKPhysicsContactDelegate>
#property NSUInteger score;
#end
-(void)setupUI
{
self.score = 0;
SKLabelNode *scoreLabel = [SKLabelNode labelNodeWithFontNamed:#"Chalkduster"];
scoreLabel.fontColor = [SKColor redColor];
scoreLabel.fontSize = 20.0;
scoreLabel.text = #"SCORE: 0";
scoreLabel.name = #"scoreLabel";
scoreLabel.verticalAlignmentMode = SKLabelVerticalAlignmentModeCenter;
scoreLabel.position = CGPointMake(self.size.width/2, self.size.height - scoreLabel.frame.size.height);
[self addChild:scoreLabel];
}
-(void)adjustScoreBy:(NSUInteger)points {
self.score += points;
SKLabelNode* score = (SKLabelNode*)[self childNodeWithName:#"scoreLabel"];
score.text = [NSString stringWithFormat:#"SCORE: %lu", (unsigned long)self.score];
}
- (void)gameOver
{
GameOverScene *gameOverScene = [GameOverScene sceneWithSize:self.size];
[self.view presentScene:gameOverScene transition:[SKTransition pushWithDirection:SKTransitionDirectionLeft duration:0.5]];
}
GameOverScene.h
#interface GameOverScene : SKScene
#property NSUInteger *score;
#end
GameOverScene.m
#implementation GameOverScene
{
SKLabelNode *scoreLabel;
}
-(id)initWithSize:(CGSize)size {
if (self = [super initWithSize:size]) {
self.backgroundColor = [SKColor colorWithRed:1.5 green:1.0 blue:0.5 alpha:0.0];
[self addStartButton];
[self addRateButton];
[self addBackButton];
[self addScoreLabel];
}
return self;
}
-(void)addScoreLabel
{
scoreLabel = [SKLabelNode labelNodeWithFontNamed:#"Chalkduster"];
scoreLabel.text = [NSString stringWithFormat:#"SCORE: %lu", (unsigned long)self.score];
scoreLabel.position = CGPointMake(500, 50);
scoreLabel.name = #"gameOverScore";
[self addChild:scoreLabel];
}

Answer 1

There are several approaches to do this.
You could use a singleton class to handle that.
Other option would be to create a public score property in GameOverScene, and then pass the score value of MyScene to GameOverScene, something like this:
In GameOverScene.h add a score property
#interface GameOverScene : SKScene
#property NSUInteger score;
#end
Then in you gameOver method set the score value
- (void)gameOver
{
GameOverScene *gameOverScene = [GameOverScene sceneWithSize:self.size];
gameOverScene.score = self.score;
[self.view presentScene:gameOverScene transition:[SKTransition pushWithDirection:SKTransitionDirectionLeft duration:0.5]];
}
In GameOverScene create didMoveToView
- (void)didMoveToView:(SKView *)view
{
[self addScoreLabel];
}

Answer 2

You just need a property in your next scene (target class) and call it from (void)gameOver (in the source class)
Add it int your target class like this
#property int score;
then use it like this in your source class
gameOverScene.score = self.score
You will use this kind of stuff a lot for when moving data around.