void moveletter(CLetter &Let)
{
   //pick one of eight random directions for the letter to move in
   int dir = rand()%8;

   //These guys indicate how much each char 'jumps' each movement
   int tW = Let.W;
   int tH = Let.H;
  
   //blank out old char
   rectfill(screen, Let.x,Let.y, Let.x+Let.W, Let.y+Let.H,BLACK);
   
   //Store current position for resetting if there's a collision
   Let.oldX = Let.x;
   Let.oldY = Let.y; 
   
   switch(dir)
   {
      case 0:
          Let.x -= tW;
          Let.y -= tH;
          break;
      case 1:
          Let.y -= tH;
          break;
      case 2:
          Let.x += tW;
          Let.y -= tH;
          break;
      case 3:
          Let.x -= tW;
          break;
      case 4:
          Let.x += tW;
          break;
      case 5:
          Let.x -= tW;
          Let.y += tH;
          break;
      case 6:
          Let.y += tH;
          break;
      case 7:
          Let.x += tW;
          Let.y += tH;
          break;
      default:
          break;
   }
}