玩家1，按W、A、S、D

玩家2   按上、下、左、右

分辨率800*600，自行修改設置

using System;
using System.Drawing;
using System.Windows.Forms;
using Microsoft.DirectX;
using Microsoft.DirectX.Direct3D;
using dinput = Microsoft.DirectX.DirectInput;

namespace Snake3D
{
    public class Game : Form
    {
		dinput.Device input;
        Device device; 
		Microsoft.DirectX.Direct3D.Font font12;
		Microsoft.DirectX.Direct3D.Font font36;
		Microsoft.DirectX.Direct3D.Font font24;

		const bool FullScreen = true;
		const bool AntiAlias = true;
		const bool ShowFPS = true;

		float ElapsedTime, UpdateTime, AppTime;		
        private float speed = 0.25f;

		Intro intro;
		Arena arena;
		EventKey Escape, Return;
		Level level;
		Player[] players = new Player[2];
		
		Random rnd = new Random(Environment.TickCount);

		bool IntroPlaying = true;
		bool GameFinished = false;
		Vector3 ZoomInPoint;
		float z = 0f;
		public static Vector3 CamPos = new Vector3(40,40,14);
		Vector3 UpVector;

		static void Main() 
		{
			using (Game frm = new Game())
			{
				frm.Show();				
				Application.Run(frm);				
			}
		}		

		public Game()
		{
			this.Size = new Size(800,600);
			this.StartPosition = FormStartPosition.CenterScreen; 
			this.SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.Opaque, true);
			this.InitializeInput();
			this.InitializeGraphics();
		}

		private void InitializeInput()
		{
            dinput.CooperativeLevelFlags coopFlags;
			coopFlags = dinput.CooperativeLevelFlags.NonExclusive;
			coopFlags |= dinput.CooperativeLevelFlags.Background;			
			input = new dinput.Device(dinput.SystemGuid.Keyboard);
			input.SetCooperativeLevel(this,coopFlags);
			input.Acquire();

			Escape = new EventKey(dinput.Key.Escape,input);
			Escape.KeyUp  = new EventHandler(Escape_KeyUp);
			Return = new EventKey(dinput.Key.Return,input);
			Return.KeyUp  = new EventHandler(Return_KeyUp);
		}

		private void GetInput()
		{										
			dinput.KeyboardState kstate = null;
			kstate = input.GetCurrentKeyboardState();
			Escape.Process();
			Return.Process();
			for ( int i = 0; i < players.Length; i   )
				players[i].CheckKeys(kstate);
		}
     
		protected void InitializeGraphics() 
		{ 
			Cursor.Hide();
			PresentParameters pres = new PresentParameters(); 
			pres.Windowed = ! FullScreen; 
			pres.SwapEffect = SwapEffect.Discard; 
			pres.EnableAutoDepthStencil = true ; 
			pres.AutoDepthStencilFormat = DepthFormat.D16;
			if ( FullScreen)
			{
				pres.BackBufferCount = 1;
				pres.BackBufferFormat = Format.X8R8G8B8;
				pres.BackBufferWidth = 1280;
				pres.BackBufferHeight = 1024;
			}			
			int b,Q = 0;
			if ( AntiAlias)
			{
				for ( int i = 0; i < (int) MultiSampleType.SixteenSamples; i   )
				{
					if ( Manager.CheckDeviceMultiSampleType(0,DeviceType.Hardware,Manager.Adapters[0].CurrentDisplayMode.Format,! FullScreen,(MultiSampleType) i,out b,out Q) )			
						pres.MultiSample = (MultiSampleType) i;			
				}
				pres.MultiSampleQuality = Q-1;		
			}
			device = new Device(0, DeviceType.Hardware, this , CreateFlags.HardwareVertexProcessing | CreateFlags.PureDevice , 
				pres); 
			device.RenderState.CullMode = Cull.None; 
			font12 = new Microsoft.DirectX.Direct3D.Font(device,new System.Drawing.Font("Arial",12));
			font24 = new Microsoft.DirectX.Direct3D.Font(device,new System.Drawing.Font("Arial",24));
			font36 = new Microsoft.DirectX.Direct3D.Font(device,new System.Drawing.Font("Arial",36,FontStyle.Bold));

			device.Transform.Projection = Matrix.PerspectiveFovLH( (float) Math.PI /2f,(float)this.Width/(float) this.Height ,1f,200f);

			level = new Level( (Levels) rnd.Next(Level.numLevels) );
			
			players[0] = new Player(device,dinput.Key.W,dinput.Key.S,
				dinput.Key.A,dinput.Key.D,TextureLoader.FromFile(device,@"..\..\tex3.bmp"),level,"玩家 1",0);
			players[1] = new Player(device,dinput.Key.UpArrow,dinput.Key.DownArrow,
				dinput.Key.LeftArrow,dinput.Key.RightArrow,TextureLoader.FromFile(device,@"..\..\tex1.bmp"),level,"玩家 2",1);
			
			for ( int i = 0; i < players.Length; i   )
				players[i].onLost  = new lost(Playerlost);            
			
			device.SamplerState[0].MagFilter = TextureFilter.Anisotropic;
			device.SamplerState[0].MinFilter = TextureFilter.Anisotropic;

			intro = new Intro(device,"雙人貪吃蛇 3D");
			intro.Start(DXUtil.Timer(DirectXTimer.GetAbsoluteTime) );
			intro.Ready  = new Finished(IntroFinished);					

			arena = new Arena(device,TextureLoader.FromFile(device,@"..\..\tex4.bmp"),level);
		}