source: 2010/24/timisahe/Ympyroita/Peli.cs @ 10337

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

public class Peli : PhysicsGame
{

    protected override void Begin()
    {

        Gravity = new Vector(0.0, -8.0);
        for (int i = 0; i < 500; i++)
        {
         PiirraYmpyra();
        }

        Level.CreateBorders(0.5, false);
        Level.BackgroundColor = Color.SkyBlue;

        LisaaNappaimet();
    }

    void PiirraYmpyra()
    {
        PhysicsObject pallo = new PhysicsObject(20.0,20.0, Shapes.Circle);
        pallo.X = RandomGen.NextInt( -300,300 );
        pallo.Y = RandomGen.NextInt(-300, 300);
        pallo.Color  = RandomGen.NextColor();

        Add(pallo);
        Vector impulssi = new Vector(900.0, 0.0);
        pallo.Hit(impulssi);
        pallo.Restitution = 0.5;

    }
    void PiirraUhri(double x,double y)
    {
        PhysicsObject uhri = PhysicsObject.CreateStaticObject(20.0, 20.0,Shapes.Circle);
        uhri.Color = Color.DarkRed;
        uhri.Restitution = 1.0;
        uhri.X =x;
        uhri.Y =y;
        Add(uhri);
    }

    void LisaaNappaimet()
    {
        Keyboard.Listen(Key.Left, ButtonState.Pressed, VaihdaPainovoimaa, null, new Vector(-1000,0));
        Keyboard.Listen(Key.Right, ButtonState.Pressed, VaihdaPainovoimaa, null, new Vector(1000, 0));
        Keyboard.Listen(Key.Down, ButtonState.Pressed, VaihdaPainovoimaa, null, new Vector(0, -1000));
        Keyboard.Listen(Key.Up, ButtonState.Pressed, VaihdaPainovoimaa, null, new Vector(0, 1000));
    }

    void VaihdaPainovoimaa(Vector suunta)
    {
        Gravity = suunta;
    }

    
   
    }