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[ActionScript 3.0] [STUFF] Vector, Iterator, Broadcaster

public

Moderator

Posts: 546

Location: Dessau

1

Tuesday, February 5th 2008, 5:29am

[STUFF] Vector, Iterator, Broadcaster

hier ma n kleines bsp ... für einen Vector und einen Iterator und ein minimale anwendungs bsp für einen Broadcaster

Interface IList

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package de.djpublic.utils{
    
    public interface IList{
        
        function size():int;
        function addElement(object:Object):void;
        function removeElement(object:Object):void;
        function add(object:Object):Boolean;
        function remove(object:Object):Boolean;
        function getElement(index:int):Object;
        function getIndex(object:Object):int;
        function toArray():Array;
        function removeAt(index:int):void;
    }
    
}

Klasse Vector

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package de.djpublic.utils{
    
    public class Vector implements IList{
        
        
        private var _arr:Array;
        private var _size:int;
        
        /**
        *
        */
        public function size():int{
            this._size = this._arr.length;
            return this._size;
        }
        
        /**
        *
        */
        public function Vector(){
            this._arr = new Array();
            this._size = 0;
        }
        
        /**
        *
        */
        public function addElement(object:Object):void{
            this._arr.push(object);
        }
        
        /**
        *
        */
        public function removeElement(object:Object):void{
            var s:int = this.size();
            
            for(var i:int = 0; i < s; i ++){
                if(this._arr[i] == object){
                    this._arr.splice(i, 1);
                }
            }
        }
        
        /**
        *
        */
        public function add(object:Object):Boolean{
            var s:int = this.size();
            
            for(var i:int = 0; i < s; i ++){
                
                if(this._arr[i] == object){
                    
                    return false;
                    break;
                }
                
                
                
            }
            this._arr.push(object);
            return true;
        }
        
        /**
        *
        */
        public function remove(object:Object):Boolean{
            var s:int = this.size();
            
            for(var i:int = 0; i < s; i ++){
                if(this._arr[i] == object){
                    this._arr.splice(i, 1);
                    return true;
                    break;
                }
            }
            return false;
        }
        /**
        *
        */
        public function removeAt(index:int):void{
            this._arr.splice(index, 1);
        }
        
        /**
        *
        */
        public function getElement(index:int):Object{
            return this._arr[index];
        }
        
        
        /**
        *
        */
        public function getIndex(object:Object):int{
            var s:int = this.size();
            var index:int = 0;
            
            for(var i:int = 0; i < s; i ++){
                index = i;
                if(this._arr[i] == object){
                    break;
                }
            }
            return index;
        }
        
        /**
        *
        */
        public function toArray():Array{
            return this._arr;
        }
        
         
    }
    
    
}

Klasse Iterator

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package de.djpublic.utils{
    
    public class ListIterator{
        
        private var _cursor:int;
        private var _size:int;
        private var _list:IList;
        
        public function ListIterator(list:IList){
            this._cursor = 0;
            this._list = list;
            this._size = this._list.size();
        }
        
        public function next():Object{
            return this._list.getElement(this._cursor ++);
        }
        
        public function hasNext():Boolean{
            return this._cursor < this._size;
        }
        
        public function get cursor():int{
            return this._cursor;
        }
        
    }
    
}


Klasse Broadcaster

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package de.djpublic.utils{
    
    import de.djpublic.utils.*;
    
    public class Broadcaster{
        
        private var _listeners:Vector;

        
        
        public function Broadcaster(){
            this._listeners = new Vector();
        }
        
        public function addListener(listener:Object):void{
            this._listeners.add(listener);
            
        }
        
        public function removeListener(listener:Object):void{
            this._listeners.remove(listener);
        }
        
        public function fire(evt:String, ...rest):void{
            
            var it:ListIterator = new ListIterator(this._listeners);

            while(it.hasNext()){
                var handler:* = it.next()[evt];
                if(handler != undefined) handler.apply(it.next(), rest);
            }
        }
        
    }
    
}


Klasse TestBroadcaster

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package de.djpublic.utils{
    
    import de.djpublic.utils.*;
    
    public class TestBroadcaster extends Broadcaster{
        
        private var _count:int;
        
        public function get count():int{
            return this._count;
        }
        public function TestBroadcaster(){
            this._count = 0;
            
        }
        
        public function start(){
            
            fire("onStart");
            for(var i:int = 0; i < 10; i ++){
                this._count = i;
                fire("onChange", this.count);
                
            }
            this.fire("onFinish");
            
            
        }
    }
    
}


test fla

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import de.djpublic.utils.*;

var test:TestBroadcaster = new TestBroadcaster();
var o:Object = new Object();

o.onFinish = function():void{
    trace("onFinish");
};
o.onStart = function():void{
    trace("onStart");
};
o.onChange = function(counter:int):void{
    trace("onChange " + counter);
};
test.addListener(o);

test.start();


output

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onStart
onChange 0
onChange 1
onChange 2
onChange 3
onChange 4
onChange 5
onChange 6
onChange 7
onChange 8
onChange 9
onFinish
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public

Moderator

Posts: 546

Location: Dessau

2

Tuesday, February 5th 2008, 5:33am

und nun nur dr Vector Test

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import de.djpublic.utils.*;

var v:Vector = new Vector();

v.addElement(1);
v.addElement(2);
v.addElement(3);
/*
*    false wenn 3 vorhanden, 3 wird hinzugefügt
*    true wenn 3 nicht vorhanden, 3 wird nicht hinzugefügt
*/
var bool:Boolean = v.add(3);





var it:ListIterator = new ListIterator(v);

while(it.hasNext()){
    trace("index " + it.cursor + " = " + it.next());
}

trace("index von element 2 = " + v.getIndex(2));

var arr:Array = v.toArray();
trace(arr);


output

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index 0 = 1
index 1 = 2
index 2 = 3
index von element 2 = 1
1,2,3
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