using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using Slipstream;
using Azimuth;
using Annulus;

namespace Slipstream.Testbed
{
    class Program
    {
        static void Main(string[] args)
        {
            // It takes ~3 seconds to start up the main window form.
            // It would be good to have a splash screen during these seconds
            // System.Windows.Forms.MessageBox.Show("Starting");

            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);

            Blacklight.Core.GraphicsAdapterManager.Singleton.ForceStartup();

            if (Blacklight.Core.GraphicsAdapterManager.Singleton.Modules.Count == 0)
            {
                System.Windows.Forms.MessageBox.Show(
                    "Could not locate any Blacklight graphics addapters (eg: XNA, Tao, or GDI).  " +
                        "Will now exit.",
                    "Critical Error");
                return;
            }

            Blacklight.Core.GraphicsAdapterManager.Singleton.SetCurrentModule(
                Blacklight.Core.GraphicsAdapterManager.Singleton.Modules.First());

            var mainWindow = new MainWindow();

            var world = new FluidWorld();

            ResetWorld(world);

            mainWindow.world = world;

            Application.Run(mainWindow);
        }

        public static void ResetWorld(FluidWorld world)
        {
            foreach(var body in world.BoundaryBodies.ToList())
            {
                world.RemoveBoundaryBody(body);
            }

            foreach(var vorton in world.Vortons.ToList())
            {
                world.RemoveVorton(vorton);
            }

            foreach(var particle in world.TracerParticles.ToList())
            {
                world.RemoveTracerParticle(particle);
            }

            //world.AddVorton(new Vorton
            //{
            //    Motion = Vorton.MotionType.DYNAMIC,
            //    Position = new Vector(-100, 0),
            //    Vorticity = 2500,
            //});

            //world.AddVorton(new Vorton
            //{
            //    Motion = Vorton.MotionType.DYNAMIC,
            //    Position = new Vector(100, 0),
            //    Vorticity = 2500,
            //});

            //world.AddVorton(new Vorton
            //{
            //    Motion = Vorton.MotionType.DYNAMIC,
            //    Position = new Vector(0, Math.Sqrt(2) * 100),
            //    Vorticity = 25000,
            //});

            //world.AddVorton(new Vorton
            //{
            //    Motion = Vorton.MotionType.DYNAMIC,
            //    Position = new Vector(10, Math.Sqrt(2) * 100),
            //    Vorticity = -50000,
            //});

            //world.AddVorton(new Vorton
            //{
            //    Motion = Vorton.MotionType.DYNAMIC,
            //    Position = new Vector(20, Math.Sqrt(2) * 100),
            //    Vorticity = -25000,
            //});

            var vertices = new SimplePolygon(new Vector[]
            {
                new Vector(0, 0),
                new Vector(-10, 0),
                new Vector(-12, 1),
                new Vector(-11, 2),
                new Vector(-9, 3),
                new Vector(-8, 4),
            });

            var fluidBody = new BoundaryBody(vertices, Vector.Zero, 0.0, 10);

            world.AddBoundaryBody(fluidBody);

            Random rand = new Random(1);
            for (int i = 0; i < 1000; ++i)
            {
                world.AddTracerParticle(new TracerParticle
                {
                    Position = new Vector(2 * rand.NextDouble() - 1, 2 * rand.NextDouble() - 1) * 100,
                });
            }
        }
    }
}