flash制作水墨场景中千山鸟飞绝的逼真场景动画

飞鸟跟随鼠标点击位置飞翔，在画面中点击任意位置，飞鸟会飞向此处。

效果：

背景素材，右键选择图片另存为

制作步骤

1、新建舞台尺寸为650*258像素，帧速20fps的文档。

2、导入背景图象到库中。

3、在舞台第一帧放入库中的背景图象，右键选择背景，转换为图形元件。

4、新建飞鸟影片剪辑，在舞台中绘制飞鸟翅膀舞动的效果。

5、回到库中，右键选择飞鸟影片剪辑，选择链接属性，标示符为bird，勾选actionscript

6、回到主场景，新建一层，输入以下代码：

复制代码代码如下://飞鸟初始大小以及数量、分布位置

function drawToPoint()

{

for (i = 0; i < numbirds; i++)

{

bird = _root["bird" + i];

bird.vx = bird.vx + (_xmouse - bird._x) * bird.k * 100;

bird.vy = bird.vy + (_ymouse - bird._y) * bird.k * 100;

} // end of for

} // End of the function

damp = 9.500000E-001;

numbirds = 30;

for (i = 0; i < numbirds; i++)

{

bird = attachMovie("bird", "bird" + i, i);

bird._x = Math.random() * 350 + 20;

bird._y = Math.random() * 300 + 20;

bird.vx = Math.random() * 10 - 5;

bird.vy = Math.random() * 10 - 5;

bird.k = Math.random() * 1.000000E-004 + 3.000000E-004;

bird.gotoAndPlay(Math.round(Math.random() * 20));

} // end of for

//鼠标跟随代码

onEnterFrame = function ()

{

var totx = 0;

var toty = 0;

for (i = 0; i < numbirds; i++)

{

bird = _root["bird" + i];

totx = totx + bird._x;

toty = toty + bird._y;

} // end of for

avgx = totx / numbirds;

avgy = toty / numbirds;

for (i = 0; i < numbirds; i++)

{

bird = _root["bird" + i];

bird.vx = bird.vx + (avgx - bird._x) * bird.k;

bird.vy = bird.vy + (avgy - bird._y) * bird.k;

bird.vx = bird.vx + (Math.random() - 5.000000E-001);

bird.vy = bird.vy + (Math.random() - 5.000000E-001);

bird.vx = bird.vx * damp;

bird.vy = bird.vy * damp;

targAngle = Math.atan2(bird.vy, bird.vx) * 180 / 3.141593E+000;

diff = targAngle - bird._rotation;

if (diff < -180)

{

diff = diff + 360;

} // end if

if (diff > 180)

{

diff = diff - 360;

} // end if

bird._rotation = bird._rotation + diff * 2.000000E-001;

bird._x = bird._x + bird.vx;

bird._y = bird._y + bird.vy;

} // end of for

};

onMouseDown = drawToPoint;

7、测试影片得到以下效果：