/* countdown.pde
   Written by Justin Hsia

   Demonstration of recursion
*/
void setup() {
  
}

void draw() {
  countdown(3);
  noLoop();
}

void countdown(int n) {
  if(n>=0) {         // implicitly defines an "empty" base case when n<0 
    println(n);
    countdown(n-1);  // recurse
  }
}