DemoBots/Components/OrientationComponent.swift
/* |
Copyright (C) 2016 Apple Inc. All Rights Reserved. |
See LICENSE.txt for this sample’s licensing information |
Abstract: |
A `GKComponent` that enables an animated entity to track its current orientation (i.e. the direction it is facing). This information is used when choosing an appropriate animation. |
*/ |
import SpriteKit |
import GameplayKit |
class OrientationComponent: GKComponent { |
// MARK: Properties |
var zRotation: CGFloat = 0.0 { |
didSet { |
let twoPi = CGFloat(M_PI * 2) |
zRotation = (zRotation + twoPi).truncatingRemainder(dividingBy: twoPi) |
} |
} |
var compassDirection: CompassDirection { |
get { |
return CompassDirection(zRotation: zRotation) |
} |
set { |
zRotation = newValue.zRotation |
} |
} |
} |
Copyright © 2016 Apple Inc. All Rights Reserved. Terms of Use | Privacy Policy | Updated: 2016-09-13