JavaFx vs Flash vs Silverlight

这是一个很早以前就有的JavaFX、Flash、Silverlight应用速度对比测试，传到Blog上来做一个参考。不过，这个测试结果可信度并不太高，一是三者版本已经都提升了，二是原作者使用的JavaFX算法与Flash、Silverlight的不对等……

作者网站在此，里面有很多Flash、Silverlight的应用示例：http://www.shinedraw.com/

• Carousel [JavaFx 1.1] (399 KiB, 1,485 hits)
• FPS Meter [Flash 9, AS3] (129.9 KiB, 2,742 hits)
• FPS Meter [Silverlight 2, C#] (139.6 KiB, 2,851 hits)

JavaFx

<!-- javafx( { archive: "http://www.shinedraw.com/wordpress/wp-content/uploads/FpsMeter/Carousel.jar", draggable: true, width: 550, height: 400, code: "carousel.Main", name: "Carousel" } ); // -->

Flash

Silverlight

作者的话：

开诚布公的说，我对于JavaFX没有什么好印象，我想这可能是以下原因造成的：

1、没有任何UI编辑工具，我总要与脚本打交道。如果只能用编码方式进行开发，那可就一点也不好玩了。

2、应用程序老是需要花费很长时间才能加载成功，我不知道为什么会这样，总之每次在IE中启动程序，都要过一小段才能显示出内容。

3、以JavaFX运行程序，不但需要.jar文件，还要去配置.jnlp。

4、我不知道哪些属性可以与特定对象相关联。

5、有些时候，调试器无法获得正确的错误位置。

6、JavaFx是一种全新的脚本，学习它需要很长时间。

7、当滚动页面时，JavaFX中可能会出现残像。

实际上，除此之外我还有一些不好的体验，就不一一列举了。

可能有人会说，JavaFX是一个相对较新的技术，这些都是很平常的问题，你需要耐心等待。我同意这一点，因此我将等待JavaFX的后续发展，然后再花时间学习它。

我还记得，Silverlight在它的第一版中也没什么吸引力。那么，JavaFX下面会怎么样呢？

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另外，笔者自己再补充个LGame-Simple的实现：

package org.loon.test;
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.event.KeyEvent;
import java.awt.event.MouseEvent;
import java.awt.geom.AffineTransform;
import org.loon.framework.game.simple.GameScene;
import org.loon.framework.game.simple.core.Deploy;
import org.loon.framework.game.simple.core.LSystem;
import org.loon.framework.game.simple.core.LTimerContext;
import org.loon.framework.game.simple.core.Screen;
import org.loon.framework.game.simple.utils.GraphicsUtils;
/**
 * 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 loonframework
 * @author chenpeng
 * @email：[e-mail]
 * @version 0.1
 */
public class FPS extends Screen {
	private final static int ycenter = 90;
	private final static int xcenter = 220;
	private final static double shift = Math.PI / 2;
	private double image_gap = Math.PI;
	private double angle;
	private double angle_rad = angle * Math.PI / 180;
	private int total;
	class Carousel {
		double x, y, scale;
		int width, height;
		Image image;
		public Carousel(String fileName) {
			this.image = GraphicsUtils.loadImage(fileName);
			this.width = image.getWidth(null);
			this.height = image.getHeight(null);
		}
		public void draw(Graphics2D g) {
			AffineTransform transform = new AffineTransform();
			transform.translate(x, y);
			transform.scale(scale, scale);
			g.drawImage(image, transform, null);
		}
		public void update(double i, double angle) {
			scale = 0.8 + 0.5 * Math.sin(angle + i * image_gap + shift);
			x = Math.cos(angle + i * image_gap + shift) * xcenter + xcenter;
			y = Math.sin(angle + i * image_gap + shift) * ycenter + ycenter;
		}
	}
	private Carousel[] carousels = new Carousel[0];
	public void alter(LTimerContext timer) {
		angle_rad = angle_rad + Math.PI / 60;
		for (int i = 0; i < total; i++) {
			carousels[i].update(i, angle_rad);
		}
	}
	public synchronized void addCarousel() {
		int index = total % 6;
		if (total == carousels.length) {
			carousels = (Carousel[]) LSystem.expand(carousels, (total + 1) * 5);
		}
		carousels[total++] = new Carousel("images/image" + index + ".png");
		image_gap = Math.PI * 2 / total;
	}
	public void draw(Graphics2D g) {
		g.setColor(Color.white);
		g.drawString(("图片总数:" + total).intern(), 15, getHeight() - 25);
		for (int i = 0; i < total; i++) {
			carousels[i].draw(g);
		}
	}
	public void leftClick(MouseEvent e) {
		addCarousel();
	}
	public void middleClick(MouseEvent e) {
	}
	public void rightClick(MouseEvent e) {
	}
	public void onKey(KeyEvent e) {
	}
	public void onKeyUp(KeyEvent e) {
	}
	public static void main(String[] args) {
		GameScene frame = new GameScene("LGame-Simple-FPS测试", 550, 400);
		Deploy deploy = frame.getDeploy();
		deploy.setScreen(new FPS());
		deploy.setShowFPS(true);
		deploy.setLogo(false);
		deploy.setFPS(100);
		deploy.mainLoop();
		frame.showFrame();
	}
}