1 package aurelienribon.tweenengine; 2 3 import aurelienribon.tweenengine.equations.Back; 4 import aurelienribon.tweenengine.equations.Bounce; 5 import aurelienribon.tweenengine.equations.Circ; 6 import aurelienribon.tweenengine.equations.Cubic; 7 import aurelienribon.tweenengine.equations.Elastic; 8 import aurelienribon.tweenengine.equations.Expo; 9 import aurelienribon.tweenengine.equations.Linear; 10 import aurelienribon.tweenengine.equations.Quad; 11 import aurelienribon.tweenengine.equations.Quart; 12 import aurelienribon.tweenengine.equations.Quint; 13 import aurelienribon.tweenengine.equations.Sine; 14 15 /** 16 * Collection of miscellaneous utilities. 17 * 18 * @author Aurelien Ribon | http://www.aurelienribon.com/ 19 */ 20 public class TweenUtils { 21 private static TweenEquation[] easings; 22 23 /** 24 * Takes an easing name and gives you the corresponding TweenEquation. 25 * You probably won't need this, but tools will love that. 26 * 27 * @param easingName The name of an easing, like "Quad.INOUT". 28 * @return The parsed equation, or null if there is no match. 29 */ parseEasing(String easingName)30 public static TweenEquation parseEasing(String easingName) { 31 if (easings == null) { 32 easings = new TweenEquation[] {Linear.INOUT, 33 Quad.IN, Quad.OUT, Quad.INOUT, 34 Cubic.IN, Cubic.OUT, Cubic.INOUT, 35 Quart.IN, Quart.OUT, Quart.INOUT, 36 Quint.IN, Quint.OUT, Quint.INOUT, 37 Circ.IN, Circ.OUT, Circ.INOUT, 38 Sine.IN, Sine.OUT, Sine.INOUT, 39 Expo.IN, Expo.OUT, Expo.INOUT, 40 Back.IN, Back.OUT, Back.INOUT, 41 Bounce.IN, Bounce.OUT, Bounce.INOUT, 42 Elastic.IN, Elastic.OUT, Elastic.INOUT 43 }; 44 } 45 46 for (int i=0; i<easings.length; i++) { 47 if (easingName.equals(easings[i].toString())) 48 return easings[i]; 49 } 50 51 return null; 52 } 53 } 54