LTimer.java

/**
 * Copyright 2008 - 2009
 * 
 * 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 0.1
 */
package loon.utils.timer;

import java.io.Serializable;

public class LTimer implements Serializable {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;

	private boolean active = true;

	private long delay;

	private long currentTick;

	public LTimer() {
		this(450);
	}

	public LTimer(long delay) {
		this.delay = delay;
	}

	public boolean action(long elapsedTime) {
		if (this.active) {
			this.currentTick += elapsedTime;
			if (this.currentTick >= this.delay) {
				this.currentTick -= this.delay;
				return true;
			}
		}

		return false;
	}

	public boolean action(LTimerContext context) {
		if (this.active) {
			this.currentTick += context.timeSinceLastUpdate;
			if (this.currentTick >= this.delay) {
				this.currentTick -= this.delay;
				return true;
			}
		}
		return false;
	}

	public void addPercentage(long elapsedTime) {
		this.currentTick += elapsedTime;
	}

	public void addPercentage(LTimerContext context) {
		this.currentTick += context.timeSinceLastUpdate;
	}

	public void refresh() {
		this.currentTick = 0;
	}

	public void setEquals(LTimer other) {
		this.active = other.active;
		this.delay = other.delay;
		this.currentTick = other.currentTick;
	}

	public boolean isActive() {
		return this.active;
	}

	public void start() {
		this.active = true;
	}

	public void stop() {
		this.active = false;
	}

	public void setActive(boolean bool) {
		this.active = bool;
		this.refresh();
	}

	public long getDelay() {
		return this.delay;
	}

	public void setDelay(long delay) {
		this.delay = delay;
		this.refresh();
	}

	public long getCurrentTick() {
		return this.currentTick;
	}

	public void setCurrentTick(long tick) {
		this.currentTick = tick;
	}

	public float getPercentage() {
		return this.currentTick / this.delay;
	}

	public float getRemaining() {
		return this.delay - this.currentTick;
	}

	public void clamp() {
		if (this.currentTick > this.delay) {
			currentTick = delay;
		}
	}

	public boolean isCompleted() {
		return this.currentTick >= this.delay;
	}

}