class Train {
  int xpos;
  int ypos;
  int trainSpeed;
  
  Train(int xp, int yp, int iSpeed) {
     xpos = xp;
     ypos = yp;
     trainSpeed = iSpeed;
  }

    
  void render () {
    rect(65 + xpos, 145 + ypos, 50, 10);
    rect(70 + xpos, 155 + ypos, 40, 30);
    rect(135 + xpos, 165 + ypos, 15, 20);
    rect(60 + xpos, 185 + ypos, 100, 55);
    ellipse(80 + xpos, 240 + ypos, 30, 30);
    ellipse(130 + xpos, 240 + ypos, 30, 30);

    line(75 + xpos, 235 + ypos, 130 + xpos, 235 + ypos);
    line(80 + xpos, 245 + ypos, 135 + xpos, 245 + ypos);
  }


  void drive () {
    xpos = xpos + trainSpeed;
  
    if (xpos > 350) {
      xpos = -175;
    }
  }
  
  
}






Train myTrain1;
Train myTrain2;

int xpos = -175;
int railcount = 0;
              
void setup() {
  size(400, 300);
  myTrain1 = new Train(-175, 1, int(random(1, 9)));
  myTrain2 = new Train(-175, -140, int(random(1, 9)));

  line(0, 255, 400, 255);
}

void draw() {
  framerate(30);
  background(255, 255, 255);
  
  myTrain1.render();
  myTrain1.drive();
  
  
  myTrain2.render();
  myTrain2.drive();
}