using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Drawing;
using OpenTK;
using OpenTK.Graphics.OpenGL;
using Iisu;

namespace bbiwarg
{
    class Program : GameWindow
    {

        static void Main(string[] args)
        {
            Program demo = new Program();
            demo.init();
            demo.Run(30);
        }

        protected override void OnLoad(EventArgs e)
        {
            base.OnLoad(e);
            Title = "Hello OpenTK!";
            GL.ClearColor(Color.CornflowerBlue);
        }

        protected override void OnRenderFrame(FrameEventArgs e)
        {
            base.OnRenderFrame(e);

           device.UpdateFrame(true);
           

            GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);

            Matrix4 modelview = Matrix4.LookAt(Vector3.Zero, Vector3.UnitZ, Vector3.UnitY);
            GL.MatrixMode(MatrixMode.Modelview);
            GL.LoadMatrix(ref modelview);

            // triangle
            GL.Begin(BeginMode.Triangles);

            float x = palmPosition.Value._X;
            float y = palmPosition.Value._Y;
            float z = palmPosition.Value._Z;

            GL.Vertex3(-1.0f + x, -1.0f + z, 4.0f - 10*y);
            GL.Vertex3(1.0f, -1.0f, 4.0f);
            GL.Vertex3(0.0f, 1.0f, 4.0f);
            GL.End();

            SwapBuffers();
            device.ReleaseFrame();
        }

        protected override void OnResize(EventArgs e)
        {

            base.OnResize(e);

            GL.Viewport(ClientRectangle.X, ClientRectangle.Y, ClientRectangle.Width, ClientRectangle.Height);

            Matrix4 projection = Matrix4.CreatePerspectiveFieldOfView((float)Math.PI / 4, Width / (float)Height, 1.0f, 64.0f);

            GL.MatrixMode(MatrixMode.Projection);

            GL.LoadMatrix(ref projection);
        }

        private IHandle handle;
        private IDevice device;
        private IDataHandle<Iisu.Data.Vector3> palmPosition;

        public void init()
        {
            handle = Iisu.Iisu.Context.CreateHandle();
            device = handle.InitializeDevice();
            IEventManager em = handle.EventManager;

            palmPosition = device.RegisterDataHandle<Iisu.Data.Vector3>("CI.HAND1.PalmPosition3D");

            device.Start();
        }

    }
}