Flash CS3轻松制作一个简单的弹性跟随鼠标特效_Flash教程

推荐：Flash AS实现颜色渐变光线旋转特效
旋转特效效果代码如下：varpMaxSize:Number=150;varpCenterX:Number=275;varpCenterY:Number=200;varpNumTraces:Number=20;varpNumLayers:N

这个动画非常简单，只是有一个圆永远跟随鼠标，而且还有弹性！Flash CS3轻松制作一个简单的弹性跟随鼠标特效。

在写教程之前在给大家说说我下载Flash CS3 Professional的过程，我在baidu搜到有下载的地方了！大概是400M以上，但是下载后解压总是出错，一晚上白浪费了！建议大家最好去Adobe官方网站去下载，是单线程的，假如大家网速快就能下载完的！

看下演示吧!

源文件下载：点击这里下载源文件

具体制作说明，使用Flash CS3来实现，用的也是ActionScript 3.0，您假如不懂可以查看本站相关教程。

新建立一个文档(File > New > ActionScript 3.0)，然后保存为mb5u_com.fla，然后按Ctrl F3打开属性面板，设置帧频为30fps，document class主类为Sproingdemo。

然后设置as，打开文本编辑，把下面代码保存为Sproingdemo.as。

package {
import flash.display.Shape;
import flash.display.Sprite;
import flash.events.Event;
import flash.ui.Mouse;

public class SproingDemo extends Sprite {
private var orb1:Shape;
private var orb2:Orb;
private var lineCanvas:Shape;
private var spring:Number = .1;
private var damping:Number = .9;

// Constructor
public function SproingDemo() {
init();
}

private function init():void {
// Set up the small orb
orb1 = new Shape();
orb1.graphics.lineStyle(1, 0x6633CC);
orb1.graphics.beginFill(0x6699CC);
orb1.graphics.drawCircle(0, 0, 10);

// Set up the large orb
orb2 = new Orb(25, 0x00CCFF, 1, 0x0066FF);

// Set up the drawing canvas for the line drawn between the orbs
lineCanvas = new Shape();

// Add lineCanvas, orb1 and arb2 to this object's display hierarchy
addChild(orb2);
addChild(orb1);
addChild(lineCanvas);

// Register for Event.ENTER_FRAME events
addEventListener(Event.ENTER_FRAME, enterFrameListener);

// Hide the mouse pointer
Mouse.hide();
}

private function enterFrameListener(e:Event):void {
// Set orb1's position to current mouse position
orb1.x = mouseX;
orb1.y = mouseY;

// Spring orb2 to orb1
orb2.vx = (orb1.x - orb2.x) * spring;
orb2.vy = (orb1.y - orb2.y) * spring;
orb2.vx *= damping;
orb2.vy *= damping;
orb2.x = orb2.vx;
orb2.y = orb2.vy;

// Draw a line between the two orbs
drawLine();
}

private function drawLine():void {
with (lineCanvas) {
graphics.clear();
graphics.moveTo(orb1.x, orb1.y);
graphics.lineStyle(1, 0x4C59D8);
graphics.lineTo(orb2.x, orb2.y);
}
}
}
}

然后再建立一个Orb.as，内容如下。

package {
import flash.display.Shape;

public class Orb extends Shape {
internal var radius:int;
internal var vx:Number = 0;
internal var vy:Number = 0;

// Constructor
public function Orb(radius:int = 20, fillColor:int = 0x00FF00, lineThickness:int = 1, lineColor:int = 0) {
this.radius = radius;
graphics.lineStyle(lineThickness, lineColor);
graphics.beginFill(fillColor);
graphics.drawCircle(0, 0, radius);
}
}
}

这时要注重上面三个文件一个要保存在同一个目录下，这时就可以测试影片了！

分享：Flash联合粒子特效软件打造超酷浪漫动画特效
看到闪吧某网友在学习这个的过程中碰到一些问题，就帮解答一下。在此写写教程，有不足之处，还请大家指点。粒子特效软件的功能还很多，有爱好的可以自行研究下