flashcs6教程9分析.pptVIP

步骤28 在“背景”图层中选中第5帧上的实例，按F9键打开“动作”面板，输入以下代码，如图9-62所示。 onClipEvent(enterFrame) { scrollPos = (_root.Scroller._x - 16) * 1.10803; if (scrollPos = 0) { homeX = 0; } else { if (scrollPos = 800) { homeX = -1140; } else { homeX = scrollPos / 400 * -570; } } thisX = _x; diffX = homeX - thisX; 图9-62 在“背景”图层中添加代码 moveX = diffX / 2; _x = thisX + moveX; } 步骤29 在“雪”图层中选中第5帧上的实例，接着在“动作”面板中输入以下代码，如图9-63所示。 onClipEvent (load) { if (this._name == snowflake) { _parent.i = 0; } // this._alpha = _parent.randRange (80, 100); this._width = _parent.randRange (3, 10); this._height = this._width; this._x = _parent.randRange (-100, _parent.mw + 100); this._y = _parent.randRange (0, -20); speed = _parent.randRange (2, 10); this.cacheAsBitmap=true } //+++++++ onClipEvent (enterFrame) { if (this._name == snowflake) { return; } 图9-63 在“雪”图层中添加代码 if (this._y _parent.mh ) { _global.kar_adedi--; this.removeMovieClip (); return; } import flash.display.BitmapData; import flash.geom.Rectangle; import flash.geom.Matrix; import flash.geom.Point; var currPoint:Point = new Point (); currPoint.x = this._x; currPoint.y = this._y; if (_root.outline_bmp.hitTest (_root.destPoint, 0, currPoint)) { var karmatrix1:Matrix = new Matrix (); var karmatrix2:Matrix = new Matrix (); karmatrix1.scale (this._xscale / 100, this._yscale / 100); var translateMatrix1:Matrix = new Matrix (); translateMatrix1.translate (this._x, this._y); karmatrix1.concat (translateMatrix1); _root.bitmap_1.draw (this, karmatrix1); karmatrix2.scale (this._xscale / 300, this._yscale / 300); var translateMatrix2:Matrix = new Matrix (); translateMatrix2.translate (this._x, this._y); karmatrix2.concat (translateMatrix2); _root.outline_bmp.draw (this, karmatrix2); _global.kar_adedi--; this.removeMovieClip (); return; } this._y += speed; this._x += _parent.interval