source: 2012/30/JyriP/Pong/Pong/Pong/Pong.cs @ 3698

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 impls = new Vector(30.0, 30.0);

    Vector nYlos = new Vector(0, 200);
    Vector aYlos = new Vector(0, -200);
    Vector vasen = new Vector(-200, 0);
    Vector oikea = new Vector(200, 0);

    PhysicsObject pallo = new PhysicsObject(25, 25);
    PhysicsObject oMaila;
    PhysicsObject vMaila;

    public override void Begin()
    {
        Start();
        asetaOhj();     
    }

    void lKentta()
    {
        pallo.Shape = Shape.Circle;
        pallo.Color = Color.Black;
        pallo.X = -200;
        pallo.Y = 0;
        pallo.Restitution = 1.0;
        Add(pallo);

        vMaila = luoMaila(Level.Left + 20.0, 0.0);
        oMaila = luoMaila(Level.Right - 20.0, 0.0);

        //Turhat kamat
        Level.BackgroundColor = Color.White;
        Level.CreateBorders(1.0, false);
        Camera.ZoomToLevel();
    }

    PhysicsObject luoMaila(double x, double y)
    {
        PhysicsObject maila = new PhysicsObject(20, 50);
        maila.Shape = Shape.Rectangle;
        maila.X = x;
        maila.Y = y;
        maila.Restitution = 1.0;
        maila.Color = Color.Green;
        Add(maila);
        return maila;
    }

    void Start()
    {
        lKentta();
        pallo.Hit(impls);
    }

    void asetaOhj()
    {
        Keyboard.Listen(Key.W, ButtonState.Down, mailanNopeus, "", vMaila, nYlos);
        Keyboard.Listen(Key.W, ButtonState.Released, mailanNopeus, "", vMaila, Vector.Zero);

        Keyboard.Listen(Key.S, ButtonState.Down, mailanNopeus, "", vMaila, aYlos);
        Keyboard.Listen(Key.S, ButtonState.Released, mailanNopeus, "", vMaila, Vector.Zero);

        Keyboard.Listen(Key.A, ButtonState.Down, mailanNopeus, "", vMaila, vasen);
        Keyboard.Listen(Key.A, ButtonState.Released, mailanNopeus, "", vMaila, Vector.Zero);

        Keyboard.Listen(Key.D, ButtonState.Down, mailanNopeus, "", vMaila, oikea);
        Keyboard.Listen(Key.D, ButtonState.Released, mailanNopeus, "", vMaila, Vector.Zero);

        Keyboard.Listen(Key.Up, ButtonState.Down, mailanNopeus, "", oMaila, nYlos);
        Keyboard.Listen(Key.Up, ButtonState.Released, mailanNopeus, "", oMaila, Vector.Zero);

        Keyboard.Listen(Key.Down, ButtonState.Down, mailanNopeus, "", oMaila, aYlos);
        Keyboard.Listen(Key.Down, ButtonState.Released, mailanNopeus, "", vMaila, Vector.Zero);

        Keyboard.Listen(Key.Left, ButtonState.Down, mailanNopeus, "", oMaila, vasen);
        Keyboard.Listen(Key.Left, ButtonState.Released, mailanNopeus, "", oMaila, Vector.Zero);

        Keyboard.Listen(Key.Right, ButtonState.Down, mailanNopeus, "", oMaila, oikea);
        Keyboard.Listen(Key.Right, ButtonState.Released, mailanNopeus, "", oMaila, Vector.Zero);

    }

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

   void AsetaNopeus(PhysicsObject maila, Vector nopeus)
   {
        if ((nopeus.Y < 0) && (maila.Bottom < Level.Bottom))
        {
            maila.Velocity = Vector.Zero;
            return;
        }
        if ((nopeus.Y > 0) && (maila.Top > Level.Top))
        {
            maila.Velocity = Vector.Zero;
            return;
        }

        if((nopeus.X > 0) && (maila.Left > Level.Left))
        {
            maila.Velocity = Vector.Zero;
            return;
        }

        if ((nopeus.X < 0) && (maila.Right > Level.Right))
        {
            maila.Velocity = Vector.Zero;
            return;
        }

        maila.Velocity = nopeus;
    }

}