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HTML

              
                //REF: https://ianchen.thisistap.com/object-oriented-design/
canvas#mycanvas
              
            
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CSS

              
                
              
            
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JS

              
                var sketchProc = function(processingInstance) {
 with(processingInstance) {
  size(400, 400);
  frameRate(30);

  /************************
   ****母親區Creature*******
   ************************/
  //1 Creature 共通屬性母建構子
  background(255, 255, 255);
  
  var Creature = function(nickname, age, x, y) {
   this.nickname = nickname;
   this.age = age + "yrs old";
   this.x = x;
   this.y = y;
  };
  //2 Creature Method  母建構子的共通行為
  Creature.prototype.talk = function() {
   text("SUPPP!?!?!?!??!", this.x - 40, this.y + 70);
  };

  /************************
   ****小孩1區Hopper********
   ************************/

  //3 繼承母屬性
  //4 省略小孩獨特屬性
  var Hopper = function(nickname, age, x, y) {
   Creature.call(this, nickname, age, x, y);
   //補充:增加小孩獨特屬性方法
   //this.cover = cover;
  };
  //5 繼承母行為method
  Hopper.prototype = Object.create(Creature.prototype);
  //6.1 增加小孩獨特行為method
  Hopper.prototype.draw = function() {

   /*fill(217, 90, 0);
   var img = getImage("creatures/Hopper-Happy");
   image(img, this.x, this.y);*/

   //face
   fill(230, 230, 250);
   ellipse(this.x, this.y, 60, 100);

   //eyes
   fill(0, 0, 0);
   line(this.x + 10, this.y - 25, this.x + 25, this.y - 25);
   line(this.x - 10, this.y - 25, this.x + 5, this.y - 25);

   //month
   fill(252, 65, 65);
   triangle(this.x, this.y + 20, this.x + 10, this.y + 10, this.x + 20, this.y + 20);
   //txt
   fill(0, 0, 139);
   var txt = this.nickname + ", " + this.age;
   text(txt, this.x - 40, this.y - 60);
  };
  //6.2 增加小孩獨特行為2
  Hopper.prototype.hooray = function() {
   text("Hooooray!!!", this.x - 30, this.y + 70);
  };

  /************************
   ****小孩2區Winston********
   ************************/

  //3 繼承母屬性
  //4 省略小孩獨特屬性
  var Winston = function(nickname, age, x, y) {
   Creature.call(this, nickname, age, x, y);
  };
  //5 繼承母行為method
  Winston.prototype = Object.create(Creature.prototype);
  //6 增加小孩獨特行為method
  
  Winston.prototype.draw = function() {
   // face
   fill(255, 255, 0);
   ellipse(this.x, this.y, 90, 90);
   // eyes
   fill(46, 46, 41);
   ellipse(this.x - 20, this.y - 20, 15, 15);
   ellipse(this.x + 24, this.y - 25, 15, 15);
   // mouth
   fill(252, 65, 65);
   ellipse(this.x + 13, this.y + 18, 40, 40);
   var txt = this.nickname + ", " + this.age;
   text(txt, this.x - 50, this.y - 60);
  };

  /**********資料建構完畢,下面印出來*************/

  /******呼叫Hopper跟Hopper2.0*********/

  //A 呼叫資料(等於建立小孩的物件資料)
  var lilHopper = new Hopper("Little Hopper", 15, 50, 240);
  var bigHopper = new Hopper("Big Hopper", 30, 50 + 200, 240);
  //B 呼叫行為(實體化)
  bigHopper.draw();
  bigHopper.hooray();
  lilHopper.draw();
  lilHopper.talk();

  /******呼叫Winston跟Winston2.0*********/

  //A 呼叫資料(等於建立小孩的物件資料)
  var winstonTeen = new Winston("Winsteen", 15, 50, 70);
  var winstonAdult = new Winston("Mr. Winst-a-lot", 30, 50 + 200, 70);
  //B 呼叫行為(實體化)
  winstonTeen.draw();
  winstonTeen.talk();
  winstonAdult.draw();
 }
};

// Get the canvas that Processing-js will use
var canvas = document.getElementById("mycanvas");
// Pass the function sketchProc (defined in myCode.js) to Processing's constructor.
var processingInstance = new Processing(canvas, sketchProc);
              
            
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999px

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