主題：Flash拖拽問題通用解決程式碼(含as2和as3)

Flash拖拽問題通用解決程式碼(含as2和as3)

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AS 2.0版本

下載狀況  [檔案大小：   下載次數： ]

下載：normal_drag.fla

以下為《AS》原始碼

var target_array = [a_mc, b_mc, c_mc];  
var to_where_obj = {};  
var initial_position_obj = {};  
   
var destination_array = [x1_mc, x2_mc, x3_mc];  
var is_occupied_obj = {};  
   
for (var i = 0; i < target_array.length; i++) {  
    var _mc = target_array[i];  
    initial_position_obj[_mc._name] = {_x:_mc._x, _y:_mc._y};  
     
    _mc.onPress = function()  
    {  
        delete is_occupied_obj[to_where_obj[this._name]];  
        delete to_where_obj[this._name];  
        this.startDrag();  
        this.onMouseMove = function()  
        {  
            updateAfterEvent();  
        };  
    };  
    _mc.onRelease = _mc.onReleaseOutside = function ()  
    {  
        var is_hit;  
        for (var i = 0; i < destination_array.length; i++) {  
            var _mc = destination_array[i];  
            if (!is_occupied_obj[_mc._name] && this.hitTest(_mc)) {  
                is_occupied_obj[_mc._name] = this;  
                to_where_obj[this._name] = _mc._name;  
                this._x = _mc._x;  
                this._y = _mc._y;  
                is_hit = true;  
            }  
        }  
        if (!is_hit) {  
            this._x = initial_position_obj[this._name]._x;  
            this._y = initial_position_obj[this._name]._y;  
        }  
        stopDrag();  
        delete this.onMouseMove;  
         
    };  
} 

AS 3.0版本

以下為《AS》原始碼

var target_array:Array = [a_mc, b_mc, c_mc];  
var to_where_obj:Object = new Object();  
var initial_position_obj:Object = new Object();  
   
var destination_array:Array = [x1_mc, x2_mc, x3_mc];  
var is_occupied_obj:Object = new Object();  
   
for (var i:Number = 0; i < target_array.length; i++) {  
    var _mc = target_array[i];  
    initial_position_obj[_mc.name] = {x:_mc.x, y:_mc.y};  
    _mc.addEventListener(MouseEvent.MOUSE_DOWN, mouseDown);  
    _mc.addEventListener(MouseEvent.MOUSE_UP, mouseReleased);  
    _mc.addEventListener(MouseEvent.MOUSE_MOVE, mouseMoveHandler);  
}  
function mouseDown(event:MouseEvent):void  
{  
    var _mc = event.target;  
    delete is_occupied_obj[to_where_obj[_mc.name]];  
    delete to_where_obj[_mc.name];  
    _mc.startDrag();  
}  
function mouseReleased(event:MouseEvent):void  
{  
    var is_hit:Boolean = false;  
    var des_mc:MovieClip = new MovieClip();  
    var tar_mc = event.target;  
    tar_mc.stopDrag();  
    for (var i:Number = 0; i < destination_array.length; i++) {  
        des_mc = destination_array[i];  
        if (!is_occupied_obj[des_mc.name] && tar_mc.hitTestObject(des_mc)) {  
            is_occupied_obj[des_mc.name] = tar_mc;  
            to_where_obj[tar_mc.name] = des_mc.name;  
            tar_mc.x = des_mc.x;  
            tar_mc.y = des_mc.y;  
            is_hit = true;  
        }  
    }  
    if (!is_hit) {  
        tar_mc.x = initial_position_obj[tar_mc.name].x;  
        tar_mc.y = initial_position_obj[tar_mc.name].y;  
    }  
}  
function mouseMoveHandler(event:MouseEvent):void  
{  
    event.updateAfterEvent();  
}

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