WCS quest // POO - Basics | Part 1: Faire ses premières classes

Bicycle.php

<?php

class Bicycle
{

    private $color;
    private $currentSpeed;
    private $nbSeats = 1;
    private $nbWheels = 2;

    ////////////////////////////////////////////////////////////////////

    public function forward()
    {
        $this->currentSpeed;
        return "Go !";
    }

    public function brake(): string
    {
        $sentence = "";
        while ($this->currentSpeed > 0) {
            $this->currentSpeed--;
            $sentence .= "Brake !!!";
        }
        $sentence .= "I'm stopped !";
        return $sentence;
    }

    public function getColor(): string
    {
        return $this->color;
    }
    public function setColor(string $color): void
    {
        $this->color = $color;
    }

    public function __construct(string $color, int $currentSpeed)
    {
        $this->color = $color;
        $this->currentSpeed = $currentSpeed;
    }

    public function getCurrentSpeed(): int
    {
        return $this->currentSpeed;
    }

    public function setCurrentSpeed(int $currentSpeed): void
    {
        if ($currentSpeed >= 0) {
            $this->currentSpeed = $currentSpeed;
        }
    }
}

Cars.php

<?php

class Cars
{
    private $color;
    private $currentSpeed;
    private $nbSeats;
    private $nbWheels;
    private $energy;
    private $energyLevel;

    ////////////////////////////////////////////////////////////////////

    public function __construct(string $color, int $nbSeats, string $energy)
    {
        $this->color = $color;
        $this->nbSeats = $nbSeats;
        $this->energy = $energy;
    }

    public function forward()
    {
        $this->currentSpeed;
        return "Go !";
    }

    public function brake(): string
    {
        $sentence = "";
        while ($this->currentSpeed > 0) {
            $this->currentSpeed--;
            $sentence .= "Brake !!!";
        }
        $sentence .= "I'm stopped !";
        return $sentence;
    }

    public function start()
    {
        $this->currentSpeed = 20;
    }

    public function getNbWheels(): int
    {
        return $this->nbWheels;
    }

    public function getCurrentSpeed(): int
    {
        return $this->currentSpeed;
    }

    public function getColor(): string
    {
        return $this->color;
    }

    public function getNbSeats(): string
    {
        return $this->nbSeats;
    }

    public function getEnergy(): string
    {
        return $this->energy;
    }

    public function getEnergyLevel(): string
    {
        return $this->energyLevel;
    }
}

index.php

<?php

//////////////////////////// BICYCLE ///////////////////////////

require_once 'Bicycle.php';

// Instanciation d'un nouvel objet $bike avec couleur et vitesse (-construct)
$bike = new Bicycle("purple", 15);

// Moving rockrider
echo $bike->forward();
echo '<br> Vitesse du vélo : ' . $bike->getCurrentSpeed() . ' km/h' . '<br>';
echo $bike->brake();
echo '<br> Vitesse du vélo : ' . $bike->getcurrentSpeed() . ' km/h' . '<br>';
echo $bike->brake() . '<br>';

// Instanciation d'un nouvel objet $rockrider avec couleur et vitesse (-construct)
$rockrider = new Bicycle("yellow", 10);

// Moving rockrider
echo $rockrider->forward();
echo '<br> Vitesse du vélo : ' . $rockrider->getCurrentSpeed() . ' km/h' . '<br>';
echo $rockrider->brake();
echo '<br> Vitesse du vélo : ' . $rockrider->getCurrentSpeed() . ' km/h' . '<br>';
echo $rockrider->brake() . '<br>';

// Instanciation d'un nouvel objet $tornado avec couleur et vitesse (-construct)
$tornado = new Bicycle("red", 8);

// Moving tornado
echo $tornado->forward();
echo '<br> Vitesse du vélo : ' . $tornado->getCurrentSpeed() . ' km/h' . '<br>';
echo $tornado->brake();
echo '<br> Vitesse du vélo : ' . $tornado->getCurrentSpeed() . ' km/h' . '<br>';
echo $tornado->brake() . '<br>';


//////////////////////////// CARS //////////////////////////////

require_once 'Cars.php';

// Instanciation d'un nouvel objet $mini avec couleur et nb sièges et energy (-construct)
$mini = new Cars("yellow", 5, "electric");
// Moving mini
echo $mini->start();
echo '<br> Démarrage ok' . '<br>';
echo $mini->forward();
echo '<br> Vitesse de la voiture : ' . $mini->getCurrentSpeed() . ' km/h' . '<br>';
echo $mini->brake();
echo '<br> Vitesse de la voiture : ' . $mini->getCurrentSpeed() . ' km/h' . '<br>';
echo $mini->brake();