Games on AppleWatch
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- The document discusses using SpriteKit to create games for the Apple Watch. It provides details on the Apple Watch's hardware specifications and input methods. - It introduces SpriteKit and how it can be used to create 2D games and animations. It then explains how SpriteKit works specifically for the Apple Watch, which has limitations due to its small screen size and power constraints. - The presenter provides a quick demo of a SpriteKit game running on the Apple Watch and cautions that the Apple Watch may not be well suited as a primary gaming platform due to its constraints, but could work as an extension to games on other Apple devices.
![SKAction
? Animation (or other event) which occurs over a
period of time
? Actions are run on sprite instances
SKAction *action = [SKAction
rotateByAngle:M_PI/2 duration: 1]
[mysprite runAction:action]](https://image.slidesharecdn.com/gamesonapplewatch-161025083434/85/Games-on-AppleWatch-16-320.jpg)
Games on AppleWatch
- 1. Games on your wrist? Peter Tuszy┰ski, CTO @ inFullMobile
- 2. How the hell did I get here?
- 3. Who am I? ? CTO @ inFullMobile ? EIR @ HardGamma Ventures ? Ex-entrepreneur & founder @ Appvetica ? First mobile dev @ Agora ? Epee fencer, aviation enthusiast, hacker
- 4. Agenda ? ?Watch ? SpriteKit 101 ? Speci?cs of SpriteKit on ?Watch ? Quick DEMO!
- 5. ?Watch Internals ? 520 MHz CPU (dual core) ? 512MB RAM (same as iPhone 4) ? 8GB storage ? WIFI / BT / NFC / FM (GPS in series 2)
- 6. ?Watch Sensors ? Ambient light ? Accelerometer ? Gyroscope ? Heart rate
- 7. ?Watch Haptic Feedback ? First Apple device to sport Taptic Engine ? Important events ? Each haptic is combined with an audio tone
- 8. ?Watch Touchscreen Input ? Taps ? Gestures ? Swipe ? Pan ? Force touch
- 9. ?Watch Hardware Input ? Digital Crown ? Side button ? Sensors
- 10. Philosophies of ?Watch ? Watch is not another place to spam your users with irrelevant data ? Unlike building apps for iPhone, Watch apps won¨t make you a millionaire ? Current iteration of AppleWatch isn¨t iPhone 1.0 ? It¨s not called an iWatch!
- 11. SpriteKit 101
- 12. SpriteKit ? 2D rendering and animation framework shipped with iOS SDK ? Allows to manage layers as hierarchical tree of nodes ? Root of all nodes is SKNode -> UIResponder -> NSObject ? It¨s fairly simple to use (& debug!)
- 13. SKView ? In charge of displaying SpriteKit scene ? SKView -> UIView -> UIResponder -> NSObject
- 14. SKScene ? SKScene object is the root of all node trees displayed in SpriteKit ? SKScene inherits from SKNode ? Displayed in UI by SKView (presentScene:)
- 15. SKSpriteNode ? Most common node type ? Can display images (textures) or rectangular area ?lled with a color ? Position = point where sprite is drawn with reference to its parent node Origin Anchor point (0.5, 0.5) Position Y X
- 16. SKAction ? Animation (or other event) which occurs over a period of time ? Actions are run on sprite instances SKAction *action = [SKAction rotateByAngle:M_PI/2 duration: 1] [mysprite runAction:action]
- 18. Scene editor
- 20. Is this a joke? ? Hell no :) ? SpriteKit & SceneKit are available in WatchOS3 ? Remember slide about Philosophies of ?Watch? :) ? It¨s A WATCH.
- 21. SpriteKit vs SpriteKit on WatchOS
- 22. SpriteKit vs SpriteKit on WatchOS
- 23. Touch recognition ? WKGestureRecognizer ? WKTapGestureRecognizer ? WKPanGestureRecognizer ? WKSwipeGestureRecognizer ? WKLongPressGestureRecognizer
- 24. DigitalCrown API WKInterfaceController crownSequencer: WKCrownSequencer rotationsPerSecond: Double isIdle: Bool crownDidRotate(WKCrownSequencer?, rotationalDelta: Double) crownDidBecomeIdle(WKCrownSequencer?)
- 25. CoreMotion
- 26. Quick demo time!
- 27. Recap ? Just because you can doesn¨t mean you have to ? IMHO screen estate, performance & power constraints greatly limit Watch as a game platform ? Extension/Companion to a ｀big¨ game on AppleTV, iPad, iPhone