Generate SWF

大家好，我是奶綠茶
在 flash 裡，想要透過程式 , 在 runtime 時產生一個新的 swf 檔
可以使用 swfassist
但無法自定類別或是屬性。

今天來介紹另一套類別：as3-commons-bytecode
這套類別可自定一個新的類別, 加入自定的屬性和方法，然後另存一個新的 swf 檔
但目前奶綠我試的結果，無法加入圖片或影格(如果有好心人事試出來的話，也請指教一下)
1. 先下載他的 類別包, 要載四個 swf
as3commons-bytecode-0.9.swc
as3commons-lang-0.3.1.swc
as3commons-logging-1.2.swc
as3commons-reflect-1.3.3.1.swc
都在他的 project 頁面裡。

測試

/**
 * @author milkmidi
 * @see http://milkmidi.blogspot.com
 * @version 1.0.1
 * @date created 2010/12/27/
 */
package  {  
 import flash.display.Sprite;
 import flash.events.Event;
 import flash.net.FileReference;
 import flash.system.ApplicationDomain;
 import flash.utils.ByteArray;
 import org.as3commons.bytecode.abc.enum.Opcode;
 import org.as3commons.bytecode.emit.IAbcBuilder;
 import org.as3commons.bytecode.emit.IClassBuilder;
 import org.as3commons.bytecode.emit.IMethodBuilder;
 import org.as3commons.bytecode.emit.impl.AbcBuilder;
 import org.as3commons.reflect.AccessorAccess;
 public class MyDemo1 extends Sprite {   
  protected static const PACKAGE :String = "milkmidi.generated";
  protected static const CLASS  :String = "MyGeneratedClass";
  protected static function getPackageAndClassName():String { return PACKAGE + "." + CLASS;  }
  
  private var _abcBuilder   :IAbcBuilder;
  public function get abcBuilder():IAbcBuilder { return _abcBuilder; }
  
  private var _classBuilder  :IClassBuilder;
  public function get classBuilder():IClassBuilder { return _classBuilder; }
  
  public function MyDemo1()  {
   init( PACKAGE , CLASS );
   generatProperties();
   generated(); 
  } 
  private function init(pPackage:String , pClass:String):void {
   _abcBuilder = new AbcBuilder();
   _classBuilder = _abcBuilder.definePackage(pPackage).defineClass(pClass);    
  }
  protected function generatProperties():void {   
   // generate public  property
   _classBuilder.defineProperty("myName", "String", "milkmidi");   
   
   // generate set/get
   _classBuilder.defineAccessor("myInt", "int", 100).access = AccessorAccess.READ_ONLY;   
   
   // generate method
   /*
    * public function multiplyByHundred(pValue:int):int{
    *  return pValue * 100;
    * }
    * */
   var _methodBuilder:IMethodBuilder = _classBuilder.defineMethod("multiplyByHundred");
   _methodBuilder.returnType = "int";
   _methodBuilder.defineArgument("int");
   _methodBuilder.addOpcode(Opcode.getlocal_0)
                 .addOpcode(Opcode.pushscope)
                 .addOpcode(Opcode.getlocal_1)
                 .addOpcode(Opcode.pushint, [100])
                 .addOpcode(Opcode.multiply)
                 .addOpcode(Opcode.setlocal_1)
                 .addOpcode(Opcode.getlocal_1)
                 .addOpcode(Opcode.returnvalue);  
  }  
  protected function generated():void{
   /*  另存成一個實體的 .swf 檔。
   var _bytesSWF :ByteArray = abcBuilder.buildAndExport();
   new FileReference().save( _bytesSWF  ,getPackageAndClassName() +".swf");   
   return;
   //*/
   
   _abcBuilder.addEventListener(Event.COMPLETE, _abcBuilderCompleteHandler);
   //loads the generated class into the current application domain
   _abcBuilder.buildAndLoad(ApplicationDomain.currentDomain);    
  }
  protected function _abcBuilderCompleteHandler(e:Event):void {   
   var _clazz   :Class = ApplicationDomain.currentDomain.getDefinition(PACKAGE + "." + CLASS) as Class;   
   var _instance  :Object = new _clazz();
   trace(_instance);
   trace("myName:"+_instance.myName);
   trace("myInt:"+_instance.myInt);
   var _result:int = _instance.multiplyByHundred(5);
   trace("multiplyByHundred() > 10 :"+_result);
  } 
  
  
 }//__________________________________________________________________________________ End Class
}//__________________________________________________________________________________ End Package

進階, 使用 interface
先準備一個 interface

package iface {

 public interface IVO {
  
  function get date():String;
  function get value():int;
 }
 
}

測試

/**
 * @author milkmidi
 * @see http://milkmidi.blogspot.com
 * @version 1.0.1
 * @date created 2010/12/27/
 */
package  {  
 import flash.display.BitmapData;
 import flash.display.Sprite;
 import flash.events.Event;
 import flash.events.IOErrorEvent;
 import flash.system.ApplicationDomain;
 import iface.IVO;
 import org.as3commons.bytecode.abc.enum.Opcode;
 import org.as3commons.bytecode.emit.IAbcBuilder;
 import org.as3commons.bytecode.emit.IClassBuilder;
 import org.as3commons.bytecode.emit.IMethodBuilder;
 import org.as3commons.bytecode.emit.impl.AbcBuilder;
 import org.as3commons.reflect.AccessorAccess;
 public class MyDemo2 extends MyDemo1 {   
  public function MyDemo2()  {       
   
  }
  override protected function generatProperties():void {   
   classBuilder.implementInterface("iface.IVO");
   classBuilder.defineAccessor("date", "String", "2010.12.14").access = AccessorAccess.READ_ONLY;  
   classBuilder.defineAccessor("value", "int", 999).access = AccessorAccess.READ_ONLY;  
   //classBuilder.defineAccessor("bitmapData", "flash.display.BitmapData", new BitmapData(1,2)).access = AccessorAccess.READ_ONLY;  
   //classBuilder.defineProperty("bitmapData", "flash.display.BitmapData", new BitmapData(1, 2));       
   //trace(123);
  }
  override protected function _abcBuilderCompleteHandler(e:Event):void {
   var _clazz   :Class = ApplicationDomain.currentDomain.getDefinition( getPackageAndClassName() ) as Class;
   var _instance  :IVO = new _clazz() as IVO;
   trace("date:" + _instance.date);
   trace("value:" + _instance.value);
  }
 
 }//__________________________________________________________________________________ End Class
}//__________________________________________________________________________________ End Package

轉載請註明出處 http://milkmidi.blogspot.com/2010/12/generate-swf.html