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iOS Build a Game with Sprite Kit Intro to Sprite Kit What is a Node?

Shaun Kelly
Shaun Kelly
5,648 Points
Posted by Shaun Kelly
Shaun Kelly
5,648 Points

My SKSpriteNode does not show up on my simulator??

#import "GameScene.h"

@implementation GameScene

-(void)didMoveToView:(SKView *)view {
    /* Setup your scene here */

    self.backgroundColor = [SKColor colorWithRed:0.15 green:0.15 blue:0.3 alpha:1.0];

    SKSpriteNode *greenNode = [SKSpriteNode spriteNodeWithColor:[SKColor greenColor] size:CGSizeMake(100, 100)];
    greenNode.position = CGPointMake(150, 150);
    [self addChild:greenNode];


}

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
    /* Called when a touch begins */

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

        SKSpriteNode *sprite = [SKSpriteNode spriteNodeWithImageNamed:@"Spaceship"];

        sprite.xScale = 0.5;
        sprite.yScale = 0.5;
        sprite.position = location;

        SKAction *action = [SKAction rotateByAngle:M_PI duration:1];

        [sprite runAction:[SKAction repeatActionForever:action]];

        [self addChild:sprite];
    }
}

-(void)update:(CFTimeInterval)currentTime {
    /* Called before each frame is rendered */
}

@end

3 Answers

Shahin Zangenehpour
Shahin Zangenehpour
19,146 Points

As per the instructions of the suggested link (by Piotr), I replaced the following line of code:

scene.scaleMode = SKSceneScaleModeAspectFill;

towards the end of the viewDidLoad method with:

scene.scaleMode = SKSceneScaleModeResizeFill;

with the emphasis on the last bit of code (i.e., replacing AspectFill with ResizeFill), and voila, the nodes appear in the simulator!

Jacob Caf
Jacob Caf
Courses Plus Student 936 Points

Adding on to what Shahin said go into GameViewController.m and look in the view did load area make sure you scroll down and look closely for it.Just wanted to add this on because I did not understand at first but then I figured it out.

Jedd Goble
Jedd Goble
2,026 Points

This worked for me too. Thanks!

Piotr Krzepczak
Piotr Krzepczak
1,906 Points
Piotr Krzepczak
Piotr Krzepczak
1,906 Points

This is where you can find answer to your issue I think http://stackoverflow.com/questions/25233506/why-wont-my-skspritenodes-not-appear-in-the-scene (it is about Swift but the basic rule is the same for OC).

David Rynn
David Rynn
10,554 Points
David Rynn
David Rynn
10,554 Points

I had the same problem but found a simpler solution:

In your GameViewController make sure that you have the line:

```[GameScene sceneWithSize:skView.bounds.size];

To be consistent with the earlier video in this series, instead of the Xcode 6 preloaded 
```[GameScene unarchiveFromFile:@"GameScene"];```

Even though this series is excellent in general, and @[Amit Bijlani](https://teamtreehouse.com/amit) is a great teacher, unfortunately he has not updated this video series to be consistent with Xcode 6 and there have been many changes implemented by Apple since then.