/* 6.914, Example 2.3
switch/case

Use switch/case to make cases for evaluating a variable
that can hold a simple, discrete value. (Examples: boolean, 
int, or char.) The general form is along these lines:
  
  switch (varToCheck){
    case (val0):
    case (val1):
       // this code will run if varToCheck evaluates to val0 OR val1
      break;
    case (val2):
       // this code will run if varToCheck evaluates to val2;
       break;
     default:
       // this code will run if varToCheck doesn't evaluate to any value
       // with its own case;
   }
   
 */
 
 
void setup(){
  size(300, 300);
  frameRate(1);
}

void draw(){
  for (int i = 0; i<width; i += 50){
    line(i, 0, i, height);
  }

  switch(mouseX%50){ // remainder when mouseX divided by 50
    case (0):
      println("over a line");
      break;
    case (1):
    case (2):
    case (3):
      println("close by");
      break;
    default:
      println("not on line");
      break;
  }
}


void keyPressed(){
  switch(key){
  case 'a':
    println("hello");
    break;
  case 'b':
    println("allo");
    break;
  default:
  }
}