Vehicle selectedCar = null;

int oldMx; 
int oldMy;

void mousePressed() 
{
  
  oldMx = (int) mouseX/(int)gridWidth;
  oldMy = (int) mouseY/(int)gridHeight;
  
  for (int i = 0; i < gameGrid.myCars.size(); i++)
  {
    selectedCar = (Vehicle) gameGrid.myCars.get(i);
    
    if ( (selectedCar.xOriginPoint == oldMx) && (selectedCar.yOriginPoint == oldMy) )
    {
      if (DEBUG) println("selected car " + selectedCar);
      break;
    } else 
    {
      selectedCar = null;
    }
    
  }
  
  if ((DEBUG) && (selectedCar != null)) println("last car " + selectedCar);
  
}

void mouseReleased()
{
  selectedCar = null;
}