topical media & game development

topical media & game development

[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

#javascript-processing-example-topic-drawing-pulses.htm / htm


  <!DOCTYPE html>
  <html><head>
  <script src="javascript-processing-example-processing.js"></script>
  <script src="javascript-processing-example-init.js"></script>
  <link rel="stylesheet" href="javascript-processing-example-style.css">
  </head><body><h1><a href="http://ejohn.org/blog/processingjs/">Processing.js</a></h1>
  <h2>Pulses</h2>
  
  <p>Software drawing instruments can follow a rhythm or abide by rules independent
  of drawn gestures. This is a form of collaborative drawing in which the draftsperson
  controls some aspects of the image and the software controls others.</p>
  
  <p><a href="http://processing.org/learning/topics/pulses.html"><b>Original Processing.org Example:</b> Pulses</a><br>
  <script type="application/processing">
  int angle = 0;
  
  void setup() 
  {
    size(200, 200);
    background(102);
    smooth();
    noStroke();
    fill(0, 102);
  }
  
  void draw() 
  {
    // Draw only when mouse is pressed
    if (mousePressed == true) {
      angle += 10;
      float val = cos(radians(angle)) * 6.0;
      for (int a = 0; a < 360; a += 75) {
        float xoff = cos(radians(a)) * val;
        float yoff = sin(radians(a)) * val;
        fill(0);
        ellipse(mouseX + xoff, mouseY + yoff, val/2, val/2);
      }
      fill(255);
      ellipse(mouseX, mouseY, 2, 2);
    }
  }
  </script><canvas width="200" height="200"></canvas></p>
  <div style="overflow: hidden; height: 0px; width: 0px;"></div>
  
  <pre><b>// All Examples Written by <a href="http://reas.com/">Casey Reas</a> and <a href="http://benfry.com/">Ben Fry</a>
  // unless otherwise stated.</b>
  int angle = 0;
  
  void setup() 
  {
    size(200, 200);
    background(102);
    smooth();
    noStroke();
    fill(0, 102);
  }
  
  void draw() 
  {
    // Draw only when mouse is pressed
    if (mousePressed == true) {
      angle += 10;
      float val = cos(radians(angle)) * 6.0;
      for (int a = 0; a &lt; 360; a += 75) {
        float xoff = cos(radians(a)) * val;
        float yoff = sin(radians(a)) * val;
        fill(0);
        ellipse(mouseX + xoff, mouseY + yoff, val/2, val/2);
      }
      fill(255);
      ellipse(mouseX, mouseY, 2, 2);
    }
  }</pre>
  </body></html>

[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

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