source: 2010/31/eelaeepu/pong/Peli.cs @ 1526

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 );

    PhysicsObject pallo;

        PhysicsObject maila1;
    PhysicsObject maila2;

    protected override void Begin()
    {
        LuoKentta();
        AsetaOhjaimet();
        AloitaPeli();
    }

    void LuoKentta()
    {
        pallo = new PhysicsObject(40.0, 40.0);
        pallo.Shape = Shapes.Circle;
        pallo.X = -200.0;
        pallo.Y = 0.0;
        pallo.Restitution = 1.0;
        Add(pallo);
        LuoMaila(Level.Left + 20.0, 0.0);
        LuoMaila(Level.Right - 20.0, 0.0);
           

        PhysicsObject maila = PhysicsObject.CreateStaticObject(20.0, 100.0);
        maila.Shape = Shapes.Rectangle;
        maila.X = Level.Left + 20.0;
        maila.Y = 0.0;
        maila.Restitution = 1.0;
        Add(maila);

        Level.CreateBorders(1.0, false);
        Level.BackgroundColor = Color.Pink;

        Camera.ZoomToLevel();
    }
      
    void AloitaPeli()
    {
        Vector impulssi = new Vector(500.0, 0.0);
        pallo.Hit(impulssi);
    }

    PhysicsObject LuoMaila(double x, double y)
    {
        PhysicsObject maila = PhysicsObject.CreateStaticObject(20.0, 100.0);
        maila.Shape = Shapes.Rectangle;
        maila.X = x;
        maila.Y = y;
        maila.Restitution = 1.0;
        Add(maila);
            return maila;

    }
    void AsetaOhjaimet()
    {
        Keyboard.Listen(Key.Escape, ButtonState.Pressed, Exit, "Poistu");

        Keyboard.Listen(Key.A, ButtonState.Down, LiikutaMailaaYlos, "Pelaaja 1: Liikuta mailaa ylös");
        Keyboard.Listen(Key.A, ButtonState.Released, PysaytaMaila, null);
        Keyboard.Listen(Key.Escape, ButtonState.Pressed, Exit, "Poistu");

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