ActorAccessor.java

package com.cookbook.tween;

import com.badlogic.gdx.graphics.Color;
import com.badlogic.gdx.scenes.scene2d.Actor;

import aurelienribon.tweenengine.TweenAccessor;

public class ActorAccessor implements TweenAccessor<Actor>
{
	public static final int POS_XY = 1;
	public static final int CPOS_XY = 2;
	public static final int SCALE_XY = 3;
	public static final int ROTATION = 4;
	public static final int OPACITY = 5;
	public static final int TINT = 6;

	@Override
	public int getValues(Actor target, int tweenType, float[] returnValues)
	{
		switch (tweenType)
		{
		case POS_XY:
			returnValues[0] = target.getX();
			returnValues[1] = target.getY();
			return 2;

		case CPOS_XY:
			returnValues[0] = target.getX() + target.getWidth()*.5f;
			returnValues[1] = target.getY() + target.getHeight()*.5f;
			return 2;

		case SCALE_XY:
			returnValues[0] = target.getScaleX();
			returnValues[1] = target.getScaleY();
			return 2;

		case ROTATION: returnValues[0] = target.getRotation(); return 1;

		case OPACITY: returnValues[0] = target.getColor().a; return 1;

		case TINT:
			returnValues[0] = target.getColor().r;
			returnValues[1] = target.getColor().g;
			returnValues[2] = target.getColor().b;
			return 3;

		default: assert false; return -1;
		}
	}

	@Override
	public void setValues(Actor target, int tweenType, float[] newValues) {
		switch (tweenType) {

		case POS_XY: target.setPosition(newValues[0], newValues[1]); break;

		case CPOS_XY: target.setPosition(newValues[0] - target.getWidth()*.5f, newValues[1] - target.getHeight()*.5f); break;

		case SCALE_XY: target.setScale(newValues[0], newValues[1]); break;

		case ROTATION: target.setRotation(newValues[0]); break;

		case OPACITY:
			Color c = target.getColor();
			c.set(c.r, c.g, c.b, newValues[0]);
			target.setColor(c);
			break;

		case TINT:
			c = target.getColor();
			c.set(newValues[0], newValues[1], newValues[2], c.a);
			target.setColor(c);
			break;

		default: assert false;
		}
	}
}