source: 2012/30/TinoS/Pong/Pong/Pong/Pong.cs @ 3690

using System;
using System.Collections.Generic;
using Jypeli;
using Jypeli.Assets;
using Jypeli.Controls;
using Jypeli.Effects;
using Jypeli.Widgets;

public class Pong : PhysicsGame
{
    Vector nopeusYlos = new Vector(0, 200);
    Vector nopeusAlas = new Vector(0, -200);
    PhysicsObject Pallo;
    PhysicsObject maila1;
    PhysicsObject maila2;
    public override void Begin()
    {
        LuoKentta();
        AsetaOhjaimet();
        AloitaPeli();

        PhoneBackButton.Listen(ConfirmExit, "Lopeta peli");
        Keyboard.Listen(Key.Escape, ButtonState.Pressed, ConfirmExit, "Lopeta peli");

    }
    void LuoKentta()
    {
        Pallo = new PhysicsObject(25.0, 25.0);
        Add(Pallo);
        Pallo.Shape = Shape.Circle;
        Pallo.X = -200.0;
        Vector impulssi = new Vector(500.0, 0.0);
        Pallo.Hit(impulssi);
        Pallo.Restitution = 1.0;
        Level.CreateBorders(1.0, false);
       maila1 = LuoMaila(Level.Left + 20.0, 0.0);
       maila2 = LuoMaila(Level.Right - 20.0, 0.0);
        Level.BackgroundColor = Color.Black;
        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 = Shape.Rectangle;
        maila.X = x;
        maila.Y = y;
        maila.Restitution = 1.0;
        Add(maila);
        return maila;

    }
    void AsetaOhjaimet()
    {
        Keyboard.Listen(Key.Escape, ButtonState.Pressed, ConfirmExit, "Lopeta peli");
        Keyboard.Listen(Key.W, ButtonState.Down, AsetaNopeus, "Pelaaja 1: Liikuta mailaa ylös",maila1,nopeusYlos);
        Keyboard.Listen(Key.W, ButtonState.Released, AsetaNopeus, null,maila1, Vector.Zero);
        Keyboard.Listen(Key.S, ButtonState.Down, AsetaNopeus, "Pelaaja 1: Liikuta mailaa alas", maila1, nopeusAlas);
        Keyboard.Listen(Key.S, ButtonState.Released, AsetaNopeus, null, maila1, Vector.Zero);
        Keyboard.Listen(Key.Up, ButtonState.Down, AsetaNopeus, "Pelaaja 1: Liikuta mailaa ylös", maila2, nopeusYlos);
        Keyboard.Listen(Key.Up, ButtonState.Released, AsetaNopeus, null, maila2, Vector.Zero);
        Keyboard.Listen(Key.Down, ButtonState.Down, AsetaNopeus, "Pelaaja 1: Liikuta mailaa alas", maila2, nopeusAlas);
        Keyboard.Listen(Key.Down, ButtonState.Released, AsetaNopeus, null, maila2, Vector.Zero);
        Keyboard.Listen(Key.F1, ButtonState.Pressed, ShowControlHelp, "Näytä ohjeet");
    }
    void AsetaNopeus(PhysicsObject maila, Vector nopeus)
    {
        if ((nopeus.Y > 0) && (maila.Top > Level.Top))
        {maila.Velocity = Vector.Zero;
            return;
        }
        maila.Velocity = nopeus;
    }
}