Following the Finger Around
To move the ship around, we have to update its position property every time a finger comes in contact with the screen. Thankfully, handling touch events in Sprite Kit scenes is the same as elsewhere in iOS. We have all the standard low-level touch event methods.
We’ll add this method after the ‑initWithSize: method to move the ship when a touch begins:
| 01-SpriteIntro/step03/SpaceRun/RCWMyScene.m | |
| | - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event |
| | { |
| | UITouch *touch = [touches anyObject]; |
| | CGPoint touchPoint = [touch locationInNode:self]; |
| | SKNode *ship = [self childNodeWithName:@"ship"]; |
| | ship.position = touchPoint; |
| | } |
In the ‑touchesBegan:withEvent: method, we grab one of the touches out of ...
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