/**
 * Conditionals 2. 
 * 
 * We extend the language of conditionals by adding the 
 * keyword "else". This allows conditionals to ask 
 * two or more sequential questions, each with a different
 * action. 
 */
 
size(640, 360);
background(0);

for(int i = 2; i < width-2; i += 2) {
  // If 'i' divides by 20 with no remainder 
  // draw the first line else draw the second line
  if((i % 20) == 0) {
    stroke(255);
    line(i, 80, i, height/2);
  } else if ((i % 10) == 0) {
    stroke(153);
    line(i, 20, i, 180); 
  } else {  
    stroke(102);
    line(i, height/2, i, height-20);
  }
}