source: 2010/23/jaollipa/Pong/Peli.cs @ 507

using System;
using Jypeli;
using Jypeli.ScreenObjects;
using Jypeli.Assets;

namespace Pong
{
    public class Peli : PhysicsGame
    {
        PhysicsObject pallo;
        PhysicsObject maila1;
        PhysicsObject maila2;

        DoubleMeter P1P;
        DoubleMeter P2P;

        protected override void Begin()
        {
            LuoKentta();
            AsetaOhjaimet();
            LisaaLaskurit();
            AloitaPeli();
        }
        
        void LuoKentta()
        {
            pallo = new PhysicsObject(40.0, 40.0);
            pallo.Shape = Shapes.Circle;
            Add(pallo);
            pallo.X = -200.0;
            pallo.Y = 0.0;
            pallo.Restitution = 1.0;

            maila1 = LuoMaila(Level.Left + 20.0, 0.0);
            maila2 = LuoMaila(Level.Right - 20.0, 0.0);

            Level.CreateBorders(1.0, false);
            Level.BackgroundColor = Color.Green;
            
            Camera.ZoomToLevel();
        }
         

        void AloitaPeli()
        {
            Vector impulssi = new Vector(500.0, 250.0);
            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.A, ButtonState.Down, LiikutaMailaaYlos, "Pelaaja 1: Liikuta mailaa ylös", maila1);
            Keyboard.Listen(Key.A, ButtonState.Released, PysaytaMaila, null, maila1);
            Keyboard.Listen(Key.D, ButtonState.Down, LiikutaMailaaAlas, "Pelaaja 1: Liikuta mailaa alas", maila1);
            Keyboard.Listen(Key.D, ButtonState.Released, PysaytaMaila, null, maila1);

            Keyboard.Listen(Key.Left, ButtonState.Down, LiikutaMailaaYlos, "Pelaaja 2: Liikuta mailaa ylös", maila2);
            Keyboard.Listen(Key.Left, ButtonState.Released, PysaytaMaila, null, maila2);
            Keyboard.Listen(Key.Right, ButtonState.Down, LiikutaMailaaAlas, "Pelaaja 2: Liikuta mailaa alas", maila2);
            Keyboard.Listen(Key.Right, ButtonState.Released, PysaytaMaila, null, maila2);

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

        void LiikutaMailaaYlos(PhysicsObject maila)
        {
            if (maila.Top >= Level.Top)
            {
                maila.Velocity = Vector.Zero;
                return;
            }
          
            Vector nopeusy = new Vector(0.0, 200.0);
            maila.Velocity = nopeusy;
            
        }


        void PysaytaMaila(PhysicsObject maila)
        {
            maila.Velocity = Vector.Zero;
        }

        void LiikutaMailaaAlas(PhysicsObject maila)
        {
         
            if (maila.Bottom <= Level.Bottom)
            {
                maila.Velocity = Vector.Zero;
                return;
            }
            
            Vector nopeusa = new Vector(0.0, -200.0);
            maila.Velocity = nopeusa;
        }

        DoubleMeter LuoPisteLaskuri(double x, double y)
        {
            DoubleMeter laskuri = new DoubleMeter(0.0);
            laskuri.MaxValue = 10.0;
            ValueDisplay naytto = new ValueDisplay();
            naytto.BindTo(laskuri);
            naytto.X = x;
            naytto.Y = y;
            naytto.ValueColor = Color.White;
            Add(naytto);
            return laskuri;
        }

        void LisaaLaskurit()
        {
            P1P = LuoPisteLaskuri(Screen.Left + 100.0, Screen.Top - 100.0);
            P2P = LuoPisteLaskuri(Screen.Right - 100.0, Screen.Top - 100.0);
        }
    }
}