Bitmap特效：被风吹散效果

1. package
2. {
3. import Flash.display.Bitmap;
4. import flash.display.BitmapData;
5. import flash.display.MovieClip;
6. import flash.display.Sprite;
7. import flash.events.Event;
8. import flash.filters.BlurFilter;
9. import flash.geom.Point;
10. import flash.geom.Rectangle;
11. /**
12. * ...
13. * @author flashk
14. */
15. public class Min extends Sprite
16. {
17. public var a_mc:MovieClip;
18. private var bd:BitmapData;
19. private var bds:BitmapData;
20. private var ps:Array;
21. public function Min() {
22. bd = new BitmapData(1420, 300, true);
23. bds = new BitmapData(a_mc.width, a_mc.height, true);
24. bds.draw(a_mc);
25. var bp:Bitmap = new Bitmap();
26. bp.bitmapData = bd;
27. this.addChild(bp);
28. start();
29. }
30. private function start():void {
31. ps = new Array();
32. for (var i:int = 1; i <= bds.width; i++) {
33. for (var j:int = 1; j <= bds.height; j++) {
34. ps.push(new Po(i, j, bds.getPixel32(i, j),bds.width));
35. }
36. }
37. this.addEventListener(Event.ENTER_FRAME, render);
38. this.removeChild(a_mc);
39. }
40. private function render(event:Event):void {
41. var po;
42. //bd.fillRect(new Rectangle(0, 0, bd.width, bd.height), 0);
43. bd.applyFilter(bd, new Rectangle(0, 0, bd.width, bd.height), new Point(0, 0), new BlurFilter(2, 2, 1));
44. bd.lock();
45. var len = ps.length;
46. for (var i:int = 0 ; i < len; i+=1) {
47. po = ps[i];
48. po.move();
49. bd.setPixel32(po.x, po.y+80, po.color);
50. }
51. bd.unlock();
52. }
53. }
54. }
55. class Po {
56. public var x:Number;
57. public var y:Number;
58. public var color:uint;
59. private var speed:Number;
60. private var r:Number = 0;
61. private var by:Number;
62. public function Po(x:Number, y:Number, color:uint,w:Number) {
63. this.x = x;
64. this.y = y;
65. this.color = color;
66. this.speed = Math.random() * 10 - (w - x) / 2;
67. //r = Math.random() * 50;
68. this.by = y;
69. }
70. public function move():void {
71. speed += 0.5;
72. if(speed>0){
73. this.x += speed;
74. r += 10;
75. this.y = this.by + Math.sin(r* Math.PI/180)*50;
76. }
77. }
78. }

1. package
2. {
3. import flash.display.Bitmap;
4. import flash.display.BitmapData;
5. import flash.display.MovieClip;
6. import flash.display.Sprite;
7. import flash.events.Event;
8. import flash.filters.BlurFilter;
9. import flash.filters.ColorMatrixFilter;
10. import flash.geom.ColorTransform;
11. import flash.geom.Point;
12. import flash.geom.Rectangle;
13. /**
14. * ...
15. * @author flashk
16. */
17. public class Min extends Sprite
18. {
19. public var a_mc:MovieClip;
20. private var bd:BitmapData;
21. private var bds:BitmapData;
22. private var ps:Array;
23. private var ns:uint;
24. private var checks:Array;
25. private var noise:BitmapData;
26. priv

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