来源: 互联网  发布时间: 2014-02-18

Titanium的2D游戏引擎模块-QuickTiGame2d
What is QuickTiGame2d?

QuickTiGame2d is a 2-dimensional game engine module for Titanium Mobile that provides quick and easy api to create casual 2d games on Titanium. QuickTiGame2d runs much faster on mobile devices because it is based on OpenGL ES: the industry-standard graphics library on embedded systems. Currently QuickTiGame2d supports both iOS and Android.

http://code.google.com/p/quicktigame2d/

An addictive Whac-A-Mol like game "Kawaz-tan tataki!" is included as example of QuickTiGame2d.


What does it look like?

// Obtain game module
var quicktigame2d = require('com.googlecode.quicktigame2d');

// Create view for your game.
var game = quicktigame2d.createGameView();

// Frame rate can be changed (fps can not be changed after the game is loaded)
game.fps = 30;

// Initialize your game scene
var scene = quicktigame2d.createScene();
game.pushScene(scene);

// Create your sprites and add them to the scene
var background = quicktigame2d.createSprite(
  {image:'background.png', width:640, height:960, x:0, y:0}
);

var sprite = quicktigame2d.createSprite({image:'ball.png'});

// Sprite sheet is supported
var tiles = quicktigame2d.createSpriteSheet(
  {image:'tiles.png', width:32, height:32}
);

// Add sprites to the scene
scene.add(background);
scene.add(sprite);
scene.add(tiles);

// Set sprite opacity to 50%
sprite.alpha = 0.5;

// Rotate sprite in 30 degree
sprite.rotate(30);

// Scale up the sprite by twice
sprite.scale(2);

// Z-order can be changed
background.z = 0;
sprite.z     = 1;

// Called when the game is loaded
game.addEventListener('onload', function(e) {
  Ti.API.info("your game is loaded");

  // Change position of your sprite
  sprite.x = game.screen.width  * 0.5;
  sprite.y = game.screen.height * 0.5;

  // Select first frame of sprite sheet
  tiles.frame = 0;

  // sprite sheet animation is also supported
  tiles.animate([0, 1, 2], 500);

  game.start();
}

// Called when the game enters frame
game.addEventListener('enterframe', function(e) {
  // Change position of your sprite
  sprite.x = sprite.x + 1;

  // Rotate your sprite
  sprite.rotate(sprite.angle + 6);
}

// Called when user taps screen
game.addEventListener('singletap', function(e) {
  // Note that Ti.UI.View returns non-retina coordinate even on retina devices,
  // so we have to take the scale into account to process touch event.
  var scale = game.screen.width / game.width;

  // Change position of your sprite
  sprite.x = e.x * scale;
  sprite.y = e.y * scale;

}

Performance Test

    

    来源: 互联网  发布时间: 2014-02-18

jquery mobile 实现下载功能时的问题
开发环境

使用jquery mobile 来开发移动web页面

 

问题现象

有一文件名链接，点击后是触发js功能并对表单进行提交，希望返回的是文件下载的效果，结果是返回一个undefind字符页面。

 

原因分析

在多方研究之后，将问题范围归结为jquery mobile默认的ajax提交设置。由于jquery mobile的使用是用于移动手机，设计思想又主要是以ajax交互为主。这样，即使我对一个form表单进行submit提交，但jquery mobile也会自动将其以ajax方式来交互，从后来传来的文件流后，jquery mobile无法对其进行正确解析而出错。

 

最后，我的是在form元素中加入data-ajax="false"使当前这个form不进行ajax提交。问题解决。

    

    来源: 互联网  发布时间: 2014-02-18

使用BeanUtils类简化request和resultset转换

转：http://xdwangiflytek.iteye.com/blog/1358275

 

当提交表单时，如果没有使用Struts等框架的话，你的代码可能是这样

 

   User user=new User();
   user.setUsername(request.getParameter("username"));
   user.setPassword(request.getParameter("password"));
   user.setEmail(request.getParameter("email"));

 如果表单项比较多，每次都要这样写是不是很烦？

 

OK，使用commons-beanutils吧。你只需要这样写

 

try {
    Map params=request.getParameterMap();
    BeanUtils.populate(user , params);
   } catch (Exception e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
   }

 

那么处理ResultSet时，如果没有Hibernate等框架，你的代码可能是这样

 

if (rs.next()) {
    User user = new User();
    user.setId(rs.getLong("id"));
    user.setUsercode(rs.getString("usercode"));
    user.setSex(rs.getString("sex"));
    user.setPassword(rs.getString("password"));
    user.setPhone(rs.getString("phone"));
    user.setEmail(rs.getString("email"));
   users.add(user);
}

 

 是不是也有点烦？OK，这样来写吧

 

ResultSetDynaClass rsdc = new ResultSetDynaClass(rs);
Iterator rows = rsdc.iterator();
ArrayList lists = new ArrayList();
while (rows.hasNext()) {
     User user = new User();
     DynaBean row = (DynaBean) rows.next();
     BeanUtils.copyProperties(user, row);
     lists.add(user)
}