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    <p>Here is the bulk of it<BR/> You shouldn't get compile errors now<BR/> Plus I cleaned it up<BR/> You will also have to fix your rotation point of player_mc<BR/></p> <pre><code>import flash.filters.GlowFilter; //Settings var maxDist:Number = 400; var accuracy:Number = 1; //other vars (do not edit) var dx:Number; var dy:Number; var startX:Number; var startY:Number; var endX:Number; var endY:Number; var realDist:Number; var rad:Number = Math.PI/180; var rad2:Number = 180/Math.PI; var laser_mc:MovieClip = new MovieClip() map_mc.addChild(laser_mc) //Glow Filter var glow:GlowFilter = new GlowFilter(); glow.color = 0xFF0000; glow.alpha = 1; glow.blurX = 7; glow.blurY = 7; glow.quality = 2; laser_mc.filters = new Array(glow); /** * * Mouse Controls * */ stage.addEventListener( MouseEvent.MOUSE_DOWN, fire); //on Click, fire the weapon function fire( e:Event ):void { stage.addEventListener( Event.ENTER_FRAME , updateLaser) } stage.addEventListener( MouseEvent.MOUSE_UP, stopFire); //on release, stop weapon firing function stopFire( e:Event ):void { laser_mc.graphics.clear(); stage.removeEventListener( Event.ENTER_FRAME , updateLaser) } stage.addEventListener(MouseEvent.MOUSE_MOVE, mouseMoved) //on mouse move, rotate the player function mouseMoved( e:Event ):void { //get distance between mouse and player dx = map_mc.mouseX-map_mc.player_mc.x; dy = map_mc.mouseY-map_mc.player_mc.y; //calculate rotation of player map_mc.player_mc.rotation = Math.atan2(dy, dx)*rad2; } //Update Laser Function function updateLaser( e:Event ):void { //run a loop for (realDist=0; realDist&lt;maxDist; realDist += accuracy){ //get end X&amp;Y endX = map_mc.player_mc.x + Math.cos(map_mc.player_mc.rotation * rad) * realDist; endY = map_mc.player_mc.y + Math.sin(map_mc.player_mc.rotation * rad) * realDist; //calculate hit test if (map_mc.walls_mc.hitTestPoint(endX,endY)) { break; } } //calculate the tip of the barrel (start X &amp; Y) startX = map_mc.player_mc.x + 15 * Math.cos(map_mc.player_mc.rotation * rad); startY = map_mc.player_mc.y + 15 * Math.sin(map_mc.player_mc.rotation * rad); //draw laser laser_mc.graphics.clear(); laser_mc.graphics.lineStyle(2, 0xFF0000); laser_mc.graphics.moveTo(startX, startY); laser_mc.graphics.lineTo(endX, endY); } </code></pre>
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    1. COI would probably change the event handlers' names from `fire()`, `stopFire()`, `mouseMoved()`, `updateLaser()` to `onStageMouseUp()`, `onStageMouseDown()`, `onStageMouseMove()`, `onStageEnterFrame()` respectively. Also `map_mc.player_mc` will probably throw an error along the lines of "Error: Access of possibly undefined property player_mc through a reference with static type flash.display:MovieClip", the reason being that your have to use the `map_mc` display object's `getChildByName()` method to access the `player_mc` display object(e.g. `map_mc.getChildByName("player_mc")`).
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    2. COYeah there are a bunch of changes I would make also. I only spent 10 mintues converting it. I figured he could finish it as he learns AS3
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    3. COOh yeah and map_mc.player_mc is perfectly fine to use. can also just reference it with player_mc
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