SKView Transtion

How to move other scene

Use presentScene

- (void)transitToScene:(SKScene *)newScene {
    newScene.scaleMode = SKSceneScaleModeAspectFill;
    // Transition new scene
    SKTransition *transition = [SKTransition revealWithDirection:SKTransitionDirectionDown duration:1.0];
    [self.view presentScene:newScene transition:transition];
}

Transition Directions

• SKTransitionDirectionUp
• SKTransitionDirectionDown
• SKTransitionDirectionRight
• SKTransitionDirectionLeft

SceneController

SceneController is controller for transition.
Use NSNotification to detect transition.

SceneController.h

@interface SceneController : NSObject
@property (nonatomic, weak) SKView *view;
@end

SceneController.m

@implementation SceneController
- (id)init {
    self = [super init];
    if(self ) {
        NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
        
        [center addObserver:self
                   selector:@selector(receiveStart:)
                       name:@"GameStartNotification"
                     object:nil];
        
    }
    return self;
}

- (void)receiveStart:(NSNotification *)notify {
    SKScene *scene = [NewScene sceneWithSize:self.view.bounds.size];
    [self transitToScene:scene];
}

- (void)transitToScene:(SKScene *)newScene {
    newScene.scaleMode = SKSceneScaleModeAspectFill;
    // Transition new scene
    SKTransition *transition = [SKTransition revealWithDirection:SKTransitionDirectionDown duration:1.0];
    [self.view presentScene:newScene transition:transition];
}
@end

ViewController and Scene

Let’s start example.

GameViewController.m

@interface GameViewController ()
@property (nonatomic)SceneController *sceneController;
@end

@implementation GameViewController
- (void)loadView {
    self.view  = [[SKView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]];
}

- (void)viewDidLoad {
    [super viewDidLoad];
    
    SKView * skView = (SKView *)self.view;
    skView.showsFPS = YES;
    skView.showsNodeCount = YES;
    skView.showsDrawCount = YES;
    
    self.sceneController = [[SceneController alloc] init];
    self.sceneController.view = skView;
    
    // First scene
    SKScene *scene = [TitleScene sceneWithSize:skView.bounds.size];
    scene.scaleMode = SKSceneScaleModeAspectFill;
    [skView presentScene:scene];
}
@end

loadView is required to use ViewController from AppDelegate.

TitleScene.h

#import <SpriteKit/SpriteKit.h>
@interface TitleScene : SKScene
@end

TitleScene.m

#import "TitleScene.h"

@implementation TitleScene

- (id)initWithSize:(CGSize)size { 
    if(self = [super initWithSize:size]) {
        // background color
        self.backgroundColor = [SKColor colorWithRed:0.15 green:0.15 blue:0.3 alpha:1.0];

        // title
        SKLabelNode *myLabel = [SKLabelNode labelNodeWithFontNamed:@"Chalkduster"];
        myLabel.text = @"Fun!";
        myLabel.fontSize = 34;
        myLabel.position = CGPointMake(CGRectGetMidX(self.frame),
                                       CGRectGetMidY(self.frame));
        [self addChild:myLabel];
        
        // label
        SKLabelNode *operation = [SKLabelNode labelNodeWithFontNamed:@"Chalkduster"];
        operation.text = @"Tap screen to start.";
        operation.fontSize = 17;
        operation.position = CGPointMake(CGRectGetMidX(self.frame),
                                         CGRectGetMidY(self.frame)-50);
        [self addChild:operation];
        
        // blink action
        SKAction *fadeOut = [SKAction fadeOutWithDuration:1.0];
        SKAction *fadeIn = [SKAction fadeInWithDuration:0.0];
        SKAction *blink = [SKAction sequence:@[fadeOut, fadeIn]];
        [operation runAction:[SKAction repeatActionForever:blink]];
    }
    return self;
}

- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
    
    NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
    [center postNotificationName:@"GameStartNotification"
                          object:nil
                        userInfo:nil];
}
@end

NewScene.h

@interface NewScene : SKScene
@end

NewScene.m

@implementation NewScene
@end