title: Modify canvas objects
body: <p>I am sort of new to Canvas, I have an object(?) created, I was searching how to modify this ball sort of like it is in css, I can't select it with selector to add options with javascript/jquery and I was unable to find any list or tutorial where I could get all the options how far I can change visuals of the ball.</p>
  
  <p>if there is anyone who understands canvas and is not newbie like me in this, please could you share your knowledge to me about this?</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false">
  <div class="snippet-code">
  <pre class="snippet-code-js lang-js prettyprint-override"><code>var BALL = function(x,y){
      this.x = x;
      this.y = y;
  
      this.color  = "red";
      this.radius = 7;
      this.saveRadius = 7;
      this.vx     = 3;
      this.saveVx = 3;
      this.vy     = -4;
      this.saveVy = -4;
  }</code></pre>
  </div>
  </div>
  </p>