LNOffset.java

/**
 * Copyright 2008 - 2012
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 * 
 * @project loon
 * @author cping
 * @email：javachenpeng@yahoo.com
 * @version 0.3.3
 */
package loon.action.sprite.node;

import loon.core.geom.Vector2f;

public class LNOffset extends LNAction {

	LNOffset() {

	}

	protected Vector2f _offset;

	public static LNOffset Action(float sx, float sy) {
		LNOffset off = new LNOffset();
		off._offset = new Vector2f(sx, sy);
		return off;
	}

	public static LNOffset Action(Vector2f v) {
		LNOffset off = new LNOffset();
		off._offset = v;
		return off;
	}

	public void step(float t) {
		super._target.setOffset(_offset);
	}

	public void update(float time) {
		if (time == 1f) {
			super.reset();
		}
	}

	public LNAction copy() {
		return Action(_offset);
	}

	public LNAction reverse() {
		return Action(0, 0);
	}
}