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今天觉得学到的比较有趣，所以记录之......~~~
下面这段就是画出星星的代码：StarShape.as
package {
import flash.display.Shape;
import flash.display.GradientType;
public class StarShape extends Shape {
public function StarShape (x:Number = 50, y:Number = 50, points:int = 5, innerRadius:Number = 20, outerRadius:Number = 50, angle:Number = 0, color:uint = 0xff0000) {//x和y是起始点~~
var count = Math.abs(points);
this.graphics.lineStyle(2, 0x85DB18);
//开始填色
this.graphics.beginFill(color);
if (count > 2) {
//init vars
var step, halfStep, start, n, dx, dy;
//计算两点之间的距离
step = (Math.PI * 2) / points;
halfStep = step / 2;
//起始角度
start = (angle / 180) * Math.PI;
this.graphics.moveTo(x + (Math.cos(start) * outerRadius), y - (Math.sin(start) * outerRadius));
//画星状图的边
for (n = 1; n <= count; n++) {
dx = x + Math.cos(start + (step * n) - halfStep) * innerRadius;
dy = y - Math.sin(start + (step * n) - halfStep) * innerRadius;
this.graphics.lineTo(dx, dy);
dx = x + Math.cos(start + (step * n)) * outerRadius;
dy = y - Math.sin(start + (step * n)) * outerRadius;
this.graphics.lineTo(dx, dy);
}
}
this.graphics.endFill();
}
}
}
具体显示效果如下：
鼠标点击和键盘按下事件练习（按下的按键是Alt，Shift，Ctrl,单个或两两组合，三个一起，同时点击鼠标）：
源码：
SampleSendAndLoad.as
package {
import flash.display.Sprite;
import flash.events.Event;
import flash.net.URLLoader;
import flash.net.URLLoaderDataFormat;
import flash.net.URLRequest;
import flash.net.URLRequestMethod;
import flash.events.ProgressEvent;
import flash.text.TextField;
public class SampleSendAndLoad extends Sprite {
private var _result:TextField;
public function SampleSendAndLoad() {
//建立一个文本框对象，登录成功后返回SESSION ID
_result = new TextField();
_result.autoSize = "left";
_result.wordWrap = true;
_result.width = 300;
addChild(_result);
//登录信息，包含用户名和密码
var loginXML:XML =
<login>
<username>Kingda.org</username>
<password>ActionScript 3</password>
</login>;
var request:URLRequest = new URLRequest("http://www.flash-mx.com/mm/login_xml.cfm");
request.contentType = "text/xml";
request.data = loginXML.toXMLString();
request.method = URLRequestMethod.POST;
var loader:URLLoader = new URLLoader();
loader.addEventListener(Event.COMPLETE, completeHandler);
try {
trace("loading......");
loader.load(request);
}catch (error:ArgumentError) {
trace("参数错误");
}catch (error:SecurityError) {
trace("发生安全错误");
_result.text = "发生安全错误。\n" + error;
}
}
private function completeHandler(event:Event):void {
trace(event.target.data);
var resultXML:XML = new XML(event.target.data);
_result.text = resultXML.@sessionid;
}
}
}
效果：
可以测试一下上面的点击结果哦，嘻嘻~~新手笔记！！大婶别吐。
第二章 ActionScript 3.0学习之画星星（鼠标及键盘事件）
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原文地址：http://www.cnblogs.com/xianfangloveyangmei/p/4425589.html
