PIOSpriteKit

PIOSpriteKit is a utility library for Apple's SpriteKit. It's goal is to eliminate some boilerplate code and add some usefull components.

Adding to your project

Simply add the files in the PIOSpriteKit/Classes to your project. You will also need to link your project with SpriteKit.framework.

If you use CocoaPods, just include following line in your Pod file:

pod 'PIOSpriteKit'

PIOScrollSceneViewController

PIOScrollSceneViewController lets you scroll and zoom your scene. It consists of two main classess: PIOScrollScene and PIOScrollSceneViewController. The setup is really simple:

First of all setup your scene

Make sure your scene inherits from PIOScrollViewScene
```
@interface ExampleScrollScene : PIOScrollScene
```

Initialize rootNode property of your scene with a SKSpriteNode you wish to pan and zoom. [PIOScrollScene rootNode] is the main node of the scene.

- (instancetype)initWithSize:(CGSize)size {

	if([super initWithSize:size] != nil) {

		self.rootNode.texture = [SKTexture textureWithImageNamed:@"sample_image.jpg"];
		self.rootNode.size    = self.rootNode.texture.size;
	}

	return self;
}

Override PIOScrollScene properties that let's you specify minimum maximum and initial zoom zcale (1 is a default value)

- (CGFloat)minimumZoomScale {

	return 0.5;
}

- (CGFloat)maximumZoomScale {

	return 1.0;
}

- (CGFloat)initialZoomScale {

	return 0.5;
}

Setup your view controller

Make sure your view controller inherits from PIOScrollSceneViewController

@interface ExampleScrollViewController : PIOScrollSceneViewController

Present your scene using presentScene method.

- (void)viewWillLayoutSubviews {

	[super viewWillLayoutSubviews];

	if (self.sampleScene == nil) {

		//[PIOScrollSceneViewController spriteKitView] is an IBOutlet so you can hook it up to your SKView in the storyboard)
		self.sampleScene	= [[ExampleScrollScene alloc] initWithSize:self.spriteKitView.frame.size];

		[self presentScene:self.sampleScene];
	}
}

PIOTiledNode

PIOTiledNode lets you create node that consists of several tiles.

Setup your tile node

Make sure your node inherits from PIOTiledNode

@interface ExampleTiledNode : PIOTiledNode

Override PIOTiledNode properties that let's you specify number of rows the node consists of
```
- (uint)rowsCount {

	return 1;
}

- (uint)columnsCount {

	return 2;
}
```

Override imageFileNameForRow:column method, that returns tile file name for given row and column

- (NSString *)imageFileNameForRow:(NSUInteger)row column:(NSUInteger)column {

	return [NSString stringWithFormat:@"sample_image_%lu%lu.jpg", (unsigned long) row, (unsigned long) column];
}

Use your tiled node

Call [PIOTiledNode load] method to load your tile node

SKSpriteNode *sampleNode;
sampleNode	= [[[ExampleTiledNode alloc] init] load];

Use it as any other node

You can find the working example app in Examples folder. Enjoy!

License

PIOSpriteKit is under MIT License

Contact

@styko