//this point is where we have the snow //coordinates, so we will use this to make //hitTests later. var hitPoint = new Point(hitBitmap.rectangle.x, hitBitmap.rectangle.y); //the direction for the snow; 1 = right, -1 = left and 0 = none. var dir = Math.round(Math.random() * 2) - 1; //used to create new Movie Clips i = 0 //call the function setInterval every 50 milliseconds. setInterval(dropSnow, 50); function dropSnow () { //increase by 1 i++; //attach new snow _root.attachMovie("snow", "snow" + i, i); }

//libraries for objects import flash.display.BitmapData; import flash.geom.Matrix; //random positions this._x = Math.random() * 400; this._y = Math.random() * 10 - 10; //random speed to fall var speed = Math.random() * 5 + 2 //random speed between 0 and 2; if "dir" is //negative the speed will be negative too and //the snow will go to the left, if its positive //the snow will go to the right and if its equal //to 0 the snow won稚 move on the _x coordinate. var Xspeed = (Math.random() * 2) * _root.dir this.onEnterFrame = function() { //new point set to this Movie Clip痴 coordinates var myPoint = new Object(); myPoint.x = this._x; myPoint.y = this._y; //if the "hitBitmap" hits with "myPoint" on the coordinates //of "_root.hitPoint" if (_root.hitBitmap.hitTest(_root.hitPoint, 0, myPoint)) { //new matrix use to draw the snow in the update hitBitmap //and visibleBitmap var drawMatrix:Matrix = new Matrix (); //this set the drawing location to our coordinates, so when we //draw this on the bitmaps it will draw on our current location drawMatrix.translate(this._x, this._y); //draw this Movie Clip on the bitmaps using the location we set //on the matrix object _root.hitBitmap.draw(this, drawMatrix); _root.visibleBitmap.draw (this, drawMatrix); //remove the Movie Clip this.removeMovieClip(); } //Move the Movie Clip down if we didn稚 hit anything this._y += speed; //move the Movie Clip left or right; if Xspeed is 0 the //Movie Clip wont move right or left. this._x += Xspeed; //if the Movie Clip didn稚 hit anything and left the screen if (this._y > 500) { //remove Movie Clip this.removeMovieClip(); } }