public class MyWorld extends World
{
    /**
     * Constructor for objects of class MyWorld.
     * 
     */
    public MyWorld()
    {    
        // Create a new world with 600x400 cells with a cell size of 1x1 pixels.
        super(600, 400, 1);
        ControlledCar player = new ControlledCar("null",10,100);
    }
}

public class Car extends Actor
{
    //setter vars
    String licencePlate;
    double speed;
    double maxSpeed;
    
    //setter methods
    
    void setLicence(String licencePlate) { //setter method for licence plate
        this.licencePlate = licencePlate; //licence plate changes to input
    }
    
    void setSpeed(double speed) { //setter method for speed
        this.speed = speed; //speed changes to input
    }
    
    void setMaxSpeed(double maxSpeed) { //setter method for max speed
        this.maxSpeed = maxSpeed; //maxspeed changes to input
    }
    
    //getter methods
    
    String getLicence() { //getter method for licence plate
        return this.licencePlate; //return this instances licence plate
    }
    
    double getSpeed() { //getter method for speed
        return this.speed; //return this instances speed
    }
    
    double getMaxSpeed() { //getter method for max speed
        return this.maxSpeed; //return this instances maxspeed
    }
    
    
    //extra methods
    
    //'floor' it method
    void floorIt() {
        this.speed = this.maxSpeed; //set speed to maxspeed
    }
    //accelerate method
    void accelerate(double velocity) {
        this.speed += velocity; //change speed based on change in velocity
        if (this.speed >= this.maxSpeed) { //test if new speed is greater
            this.speed = this.maxSpeed; //if it is, speed = maxspeed
        }
        if (this.speed < 0.0) { //test if speed is less than 0
            this.speed = 0.0; //if it is, speed = 0
        }
    }
    
    
    public void act() 
    {
        
    }
    //creation of Car constructor
    public Car(String licenceIn, double speedIn, double maxSpeedIn) { //take input of licence plate, speed, and max speed
       licencePlate = licenceIn; //licencePlate var will always be the licenceIn
       
       if (speedIn >= 0) { //check if speedIn is greater than 0
           speed = speedIn; //if greater, speed = speedIn
       } else {
           speed = 0.0; //otherwise speed = 0
       }
       
       if (maxSpeedIn >= 0) { //check if maxspeed is greater than 0
           maxSpeed = maxSpeedIn; //if greater, maxspeed = maxspeedin
       } else {
           maxSpeed = 0.0; //otherwise, maxspeed = 0
       }
    }
    
    //wrap method to change location of object to other side of world
    void wrap() {
        if(getX() == getWorld().getWidth()-1) { //check if at edge of world width
            setLocation(1, getY()); //set location to other edge
        }
        if(getY() == getWorld().getHeight()-1) { //check if at edge of world height
            setLocation(getX(), 1); //set location to other edge
        }
        if(getX() == 0) { //check if at start of widths edge
            setLocation(getWorld().getWidth()-1, getY()); //set location to other edge
        }
        if(getY() == 0) { //check if at start of heights edge
            setLocation(getX(), getWorld().getHeight()-1); //set location to other edge
        }
    }
}

public class ControlledCar extends Car
{
    /**
     * Act - do whatever the ControlledCar wants to do. This method is called whenever
     * the 'Act' or 'Run' button gets pressed in the environment.
     */
    public void act() 
    {
        setImage("car01.png");
        String key = Greenfoot.getKey();
        if (key != null) {
            switch(key) {
                case "up":
                    setRotation(90);
                    wrap();
                    move(5);
                    break;
                case "right":
                    setRotation(0);
                    wrap();
                    move(5);
                    break;
                case "left":
                    setRotation(180);
                    wrap();
                    move(5);
                    break;
                case "down":
                    setRotation(270);
                    wrap();
                    move(5);
                    break;
            }
        }
    }  
    ControlledCar(String licenceIn, double speedIn, double maxSpeedIn) {
        super(licenceIn, speedIn, maxSpeedIn);
    }
    
}