import processing.core.PApplet;
   public class Keyboard extends PApplet {
   Main p;
   public Keyboard(Main p) {
   this.p = p;
   }
   public void run() {
   keyPressed();
   }
   public void keyPressed() {
   // Enable PDF File Export
   if (key == 's' || key == 'S') {
   p.saveFlag = !p.saveFlag;
   if (p.saveFlag) {
   println("Saving ENABLED");
   } else {
   println("Saving Disabled");
   }
   }
   // Print Timestamp
   if (key == 't' || key == 'T') {
   println(p.timestamp());
   }
   // Reset Sketch
   if (key == 'r' || key == 'R') {
   p.reset();
   }
   // Exit Sketch
   if (key == 'q' || key == 'Q') {
   exit();
   }
   // Increase Seed Value
   if (key == CODED) {
   if (keyCode == LEFT) {
   p.seed--;
   p.reset();
   } else if (keyCode == RIGHT) {
   p.seed++;
   p.reset();
   }
   }
   }
   }