import flash.display.Shape;

import flash.events.MouseEvent;

import flash.events.Event;

import flash.display.MovieClip;

import flash.geom.Point;

 

var mc:MovieClip;

var ray:Shape = new Shape();

var ray_length:Number = 0;

 

const RAY_LENGTH:Number = 1000;

ray.x = 0;

ray.y = 400;

this.addChild( ray );

 

stage.addEventListener( Event.ENTER_FRAME, update );

 

function update( e:Event ):void

{

        targeting();

        checkHitText();

        drawRay();

}

 

function targeting():void

{

        ray.rotation = Math.atan2( stage.mouseY - ray.y, stage.mouseX - ray.x ) * 180 / Math.PI - 90;

}

 

function checkHitText():void

{

        var hit_point:Point;

 

        ray_length = RAY_LENGTH;

 

        for ( var i:int = 0; i <= RAY_LENGTH; i++ )

        {

                hit_point = ray.localToGlobal( new Point( 0, i ) );

                if ( mc.hitTestPoint( hit_point.x, hit_point.y, true ) )

                        break;

        }

 

        ray_length = Math.sqrt( Math.pow( ray.x - hit_point.x, 2 ) + Math.pow( ray.y - hit_point.y, 2 ) );

}

 

function drawRay():void

{

        ray.graphics.clear();

        ray.graphics.lineStyle( 1, 0xff0000 );

        ray.graphics.moveTo( 0, 0 );

        ray.graphics.lineTo( 0, ray_length );

}

function minDistance(point:Point,figure:DisplayObject):int{

var bmp:BitmapData=new BitmapData(figure.width,figure.height);

var minDist:int=0;

bmp.draw(figure);

for (var _x:int=0;_x<bmp.width;_x++)

for (var _y:int=0;_y<bmp.height;_y++)

if((bmp.getPixel32(_x,_y)>> 24 & 0xFF).toString(16)=='ff'){

var curDist:int=Math.sqrt(Math.pow(_x - point.x, 2) + Math.pow(_y - point.y, 2));

if (minDist>curDist) minDist=curDist;

}

}