Coche arriba y abajo

Car myCar1;

Car myCar2; // Two objects!

void setup() {

  size(600, 400);

  // Arguments go inside the parentheses when the object is constructed.  

  myCar1 = new Car(color(51), 450, 100, 5); 

  myCar2 = new Car(color(151), 150, 50, -2);

}

void draw() {

  background(255);

  myCar1.move();

  myCar1.display();

  myCar2.move();

  myCar2.display();

}

// Even though there are multiple objects, only  one class is needed. 

// No matter how many cookies you make, only one cookie cutter is needed.

class Car { 

  color c;

  float xpos;

  float ypos;

  float yspeed;

  // The Constructor is defined with parameters.  

  Car(color tempC, float tempXpos, float tempYpos, float tempyspeed) { 

    c = tempC;

    xpos = tempXpos;

    ypos = tempYpos;

    yspeed = tempyspeed;

  }

  void display() {

    stroke(0);

    fill(c);

    rectMode(CENTER);

    rect(xpos, ypos, 20, 10);

  }

  void move() {

    ypos = ypos + yspeed;

    if (ypos > height && yspeed>0){

      ypos = 0;

    }

    if (ypos < 0 && yspeed<0){

    ypos = 350;

    }

  }

}