Flash AS实现的蝌蚪摆尾动画的教程

作者:dante_wd 发布时间:2019-09-20 12:47:42
本例介绍使用Flash的AS编写蝌蚪摆尾动画效果,希望朋友们喜欢~~
 

 
场景里代码

复制代码
代码如下:

  Object.environment = this;
  Math.prototype.degrees = function (r)
  {
  return (r * 180 / 3.141593E+000);
  };
  maxtents = 3;
  this.onEnterFrame = function ()
  {
  if (!random(30) && tents < maxtents)
  {
  var nombre = "tent" + String(depth++);
  var neo = this.attachMovie("tentacle", nombre, depth);
  neo._x = random(600);
  neo._y = 370;
  neo.theta = 270;
  ++tents;
  } // end if
  };
  stop ()

#initclip 1

复制代码
代码如下:

  function TentacleClass()
  {
  this.numNodes = 27;
  this.head = 2 + random(4);
  this.girth = 8 + random(12);
  this.speedCoefficient = 9.000000E-002 + random(10) / 50;
  this.friction = 9.000000E-001 + random(10) / 100;
  this.muscleRange = 20 + random(50);
  this.muscleFreq = 1.000000E-001 + random(100) / 250;
  this.generateNodes();
  this.onEnterFrame = this.move;
  } // End of the function
  TentacleClass.prototype = new MovieClip();
  TentacleClass.prototype.generateNodes = function ()
  {
  this.node = new Array();
  var n = 0;
  while (n < this.numNodes)
  {
 
  var point = {x: 0, y: 0};
  this.node.push(point);
  ++n;
  } // end while
  };
  TentacleClass.prototype.move = function ()
  {
  this.tv = this.tv + 5.000000E-001 * (Math.random() - Math.random());
  this.theta = this.theta + this.tv;
  this.tv = this.tv * this.friction;
  this.node[0].x = this.head * Math.cos(1.745329E-002 * this.theta);
  this.node[0].y = this.head * Math.sin(1.745329E-002 * this.theta);
  this.count = this.count + this.muscleFreq;
  this.thetaMuscle = this.muscleRange * Math.sin(this.count);
  this.node[1].x = -this.head * Math.cos(1.745329E-002 * (this.theta + this.thetaMuscle));
  this.node[1].y = -this.head * Math.sin(1.745329E-002 * (this.theta + this.thetaMuscle));
  var i = 2;
  while (i < this.numNodes)
  {
  var dx = this.node.x - this.node[i - 2].x;
  var dy = this.node.y - this.node[i - 2].y;
  var d = Math.sqrt(dx * dx + dy * dy);
  this.node.x = this.node[i - 1].x + dx * this.girth / d;
  this.node.y = this.node[i - 1].y + dy * this.girth / d;
  if (i == 2)
  {
  this._x = this._x - dx * this.speedCoefficient;
  this._y = this._y - dy * this.speedCoefficient;
  if (this._x + this._width < 0    this._x - this._width > 600    this._y + this._height < 0    this._y - this._height > 400)
  {
  --Object.environment.tents;
  this.removeMovieClip();
  } // end if
  } // end if
  ++i;
  } // end while
  this.clear();
  this.moveTo(this.node[1].x, this.node[1].y);
  var i = 2;
  while (i < this.numNodes)
  {
  this.lineStyle(int(this.numNodes - i) * (this.numNodes - i) / 20, 16777215, 100);
  this.lineTo(this.node.x, this.node.y);
  ++i;
  } // end while
  };
  Object.registerClass("tentacle", TentacleClass);
  #endinitclip
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