source: 2010/30/vematata/SeikailuRoolipeli/Peli.cs @ 1341

using System;
using Jypeli;
using Jypeli.Widgets;
using Jypeli.Assets;

public class Peli : PhysicsGame
{
    Vector nopeusYlos = new Vector(0, -200);
    Vector nopeusAlas = new Vector(0, 200);
    Vector nopeusVasen = new Vector(200, 0);
    Vector nopeusOikea = new Vector(-200, 0);

    PhysicsObject hahmo;

    protected override void Begin()
    {
        Testi();
        AsetaOhjaimet();
    }

    void Hahmo(double x, double y)
    {
        hahmo = new PhysicsObject(40,40);
        hahmo.Shape = Shapes.Circle;
        hahmo.Color = Color.Pink;
        hahmo.X = x;
        hahmo.Y = y;
        hahmo.Restitution = 1.0;
        //hahmo.
        Add(hahmo);
        Camera.Follow(hahmo);
    }

    void Testi() 
    {
        Hahmo(0,0);
        PhysicsObject kivi = new PhysicsObject(30,30,Shapes.Circle);
        kivi.Color = Color.Gray;
        kivi.X = 200;
        kivi.Y = -200;
        Add(kivi);

    }
    void AsetaOhjaimet()
    {
        Keyboard.Listen(Key.Up, ButtonState.Down, AsetaNopeus, "", hahmo, nopeusYlos);
        Keyboard.Listen(Key.Up, ButtonState.Released, AsetaNopeus, null, hahmo, Vector.Zero);
        Keyboard.Listen(Key.Down, ButtonState.Down, AsetaNopeus, "", hahmo, nopeusAlas);
        Keyboard.Listen(Key.Down, ButtonState.Released, AsetaNopeus, null, hahmo, Vector.Zero);
        Keyboard.Listen(Key.Left, ButtonState.Down, AsetaNopeus, "", hahmo, nopeusVasen);
        Keyboard.Listen(Key.Left, ButtonState.Released, AsetaNopeus, null, hahmo, Vector.Zero);
        Keyboard.Listen(Key.Right, ButtonState.Down, AsetaNopeus, "", hahmo, nopeusOikea);
        Keyboard.Listen(Key.Right, ButtonState.Released, AsetaNopeus, null, hahmo, Vector.Zero);

    }

    void AsetaNopeus(PhysicsObject hahmo, Vector nopeus)
    {
        hahmo.Velocity = nopeus;

    }

}