package aurelienribon.tweenengine;

import aurelienribon.tweenengine.equations.Back;
import aurelienribon.tweenengine.equations.Bounce;
import aurelienribon.tweenengine.equations.Circ;
import aurelienribon.tweenengine.equations.Cubic;
import aurelienribon.tweenengine.equations.Elastic;
import aurelienribon.tweenengine.equations.Expo;
import aurelienribon.tweenengine.equations.Linear;
import aurelienribon.tweenengine.equations.Quad;
import aurelienribon.tweenengine.equations.Quart;
import aurelienribon.tweenengine.equations.Quint;
import aurelienribon.tweenengine.equations.Sine;

/** Collection of miscellaneous utilities.
 * 
 * @author Aurelien Ribon | http://www.aurelienribon.com/ */
public class TweenUtils {
	private static TweenEquation[] easings;

	/** Takes an easing name and gives you the corresponding TweenEquation. You probably won't need this, but tools will love that.
	 * 
	 * @param easingName The name of an easing, like "Quad.INOUT".
	 * @return The parsed equation, or null if there is no match. */
	public static TweenEquation parseEasing (String easingName) {
		if (easings == null) {
			easings = new TweenEquation[] {Linear.INOUT, Quad.IN, Quad.OUT, Quad.INOUT, Cubic.IN, Cubic.OUT, Cubic.INOUT, Quart.IN,
				Quart.OUT, Quart.INOUT, Quint.IN, Quint.OUT, Quint.INOUT, Circ.IN, Circ.OUT, Circ.INOUT, Sine.IN, Sine.OUT,
				Sine.INOUT, Expo.IN, Expo.OUT, Expo.INOUT, Back.IN, Back.OUT, Back.INOUT, Bounce.IN, Bounce.OUT, Bounce.INOUT,
				Elastic.IN, Elastic.OUT, Elastic.INOUT};
		}

		for (int i = 0; i < easings.length; i++) {
			if (easingName.equals(easings[i].toString())) return easings[i];
		}

		return null;
	}
}