using System;
using System.Text;
using System.Collections;
using System.Windows.Forms;
using Microsoft.DirectX;
using Microsoft.DirectX.Direct3D;
using System.Drawing;


namespace TestConsole
{

	class CMain : System.Windows.Forms.Form
	{

		Device D3DDevice;
		VertexBuffer vertices;
		VertexBuffer vertices2;

		protected void InitGraphics()
		{
			PresentParameters pres = new PresentParameters (); 

			pres.Windowed = true;
			pres.SwapEffect = SwapEffect.Discard ; 
			pres.BackBufferCount = 1;
			// pres.EnableAutoDepthStencil = true;
			// pres.AutoDepthStencilFormat = DepthFormat.D16;

			D3DDevice = new Device(0, DeviceType.Hardware , this, CreateFlags.SoftwareVertexProcessing , pres);

			// Vertex Buffer Stuff
			vertices = CreateVertexBuffer(D3DDevice); 
			vertices2 = CreateVertexBuffer2(D3DDevice);
		}


		protected VertexBuffer CreateVertexBuffer2 (Device device) 
		{ 

			CustomVertex.TransformedColored [] verts = 
				new CustomVertex.TransformedColored [3]; 

			verts [0] = 
				new CustomVertex.TransformedColored ( 
				this .Width / 2, this.Height / 4, 0.75F, 1, 
				Color.Blue.ToArgb ()); 
			verts [1] = 
				new CustomVertex.TransformedColored ( 
				this .Width * 3 / 4, this .Height * 3 / 4, 0.75F, 1, 
				Color.Green.ToArgb ()); 
			verts [2] = 
				new CustomVertex.TransformedColored ( 
				this .Width / 4, this .Height * 3 / 4, 0.75F, 1, 
				Color.Red.ToArgb ()); 

			VertexBuffer buf = 
				new VertexBuffer ( 
				typeof ( CustomVertex.TransformedColored ), 
				verts.Length , 
				device, 
				0, 
				CustomVertex.TransformedColored.Format , 
				Pool.Default 
				);

			GraphicsStream stm = buf.Lock (0, 0, 0); 
			stm.Write ( verts ); 
			buf.Unlock (); 
			return buf ; 
 
		}

		protected VertexBuffer CreateVertexBuffer (Device device) 
		{ 

			CustomVertex.TransformedColored [] verts = 
				new CustomVertex.TransformedColored [3]; 

			verts [0] = 
				new CustomVertex.TransformedColored ( 
				this .Width / 3, this.Height / 6, 0.5F, 1, 
				Color.Blue.ToArgb ()); 
			verts [1] = 
				new CustomVertex.TransformedColored ( 
				this .Width * 3 / 6, this .Height * 3 / 6, 0.5F, 1, 
				Color.Green.ToArgb ()); 
			verts [2] = 
				new CustomVertex.TransformedColored ( 
				this .Width / 6, this .Height * 3 / 6, 0.5F, 1, 
				Color.Red.ToArgb ()); 

			VertexBuffer buf = 
				new VertexBuffer ( 
				typeof ( CustomVertex.TransformedColored ), 
				verts.Length , 
				device, 
				0, 
				CustomVertex.TransformedColored.Format , 
				Pool.Default 
				);

			GraphicsStream stm = buf.Lock (0, 0, 0); 
			stm.Write ( verts ); 
			buf.Unlock (); 
			return buf ; 
 
		}


		protected void RenderGraphics()
		{

			D3DDevice.VertexFormat = CustomVertex.TransformedColored.Format;
			D3DDevice.RenderState.ZBufferEnable = true;
			D3DDevice.RenderState.ZBufferFunction = Compare.Greater;

			D3DDevice.BeginScene();
			D3DDevice.Clear(ClearFlags.Target, Color.Black, 1.0f, 0);

			D3DDevice.SetStreamSource(0, vertices2, 0);
			D3DDevice.DrawPrimitives(PrimitiveType.TriangleList, 0, 1);

			D3DDevice.SetStreamSource(0, vertices, 0);
			D3DDevice.DrawPrimitives(PrimitiveType.TriangleList, 0, 1);

			D3DDevice.EndScene();
			D3DDevice.Present();

		}

		// Program Entrypoint
		static void Main()
		{

			CMain app = new CMain();
			
			app.Width = 800;
			app.Height = 600;

			app.InitGraphics();
			

			app.Text = "Managed DirectX Test Sample";
			app.Show();


			while(app.Created)
			{
				app.RenderGraphics();
				Application.DoEvents();
			};


		}
	}
}

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