WP7小问题，此代码用Windows就没问题

parcool 2011-06-04 04:08:23

这是WP7的代码，一运行就自动关了，书上的源码，但是如果项目是windows game的话能正常。求解答！
Game1.cs

using System;

using System.Collections.Generic;

using System.Linq;

using Microsoft.Xna.Framework;

using Microsoft.Xna.Framework.Audio;

using Microsoft.Xna.Framework.Content;

using Microsoft.Xna.Framework.GamerServices;

using Microsoft.Xna.Framework.Graphics;

using Microsoft.Xna.Framework.Input;

using Microsoft.Xna.Framework.Input.Touch;

using Microsoft.Xna.Framework.Media;



namespace WPGameTest1

{



    public class Game1 : Microsoft.Xna.Framework.Game

    {

        GraphicsDeviceManager graphics;

        SpriteBatch spriteBatch;



        Camera camera;//



        VertexPositionTexture[] verts;////

        VertexBuffer vertexBuffer;//



        BasicEffect effect;//

        Matrix worldTranslation = Matrix.Identity;//

        Matrix worldRotation = Matrix.Identity;//

        List<String> btnArr = new List<String>();//这是定义MessageBox.Show()的按钮数组

        Texture2D texture;





        public Game1()

        {

            graphics = new GraphicsDeviceManager(this);

            Content.RootDirectory = "Content";

            TargetElapsedTime = TimeSpan.FromTicks(333333);

        }





        protected override void Initialize()

        {



            camera = new Camera(this, new Vector3(0, 0, 5), Vector3.Zero, Vector3.Up);//

            Components.Add(camera);//



            base.Initialize();

        }



        protected override void LoadContent()

        {

            spriteBatch = new SpriteBatch(GraphicsDevice);

            texture = Content.Load<Texture2D>(@"Textures\Trees");

            verts = new VertexPositionTexture[4];

            verts[0] = new VertexPositionTexture(

            new Vector3(-1, 1, 0), new Vector2(0, 0));

            verts[1] = new VertexPositionTexture(

            new Vector3(1, 1, 0), new Vector2(1, 0));

            verts[2] = new VertexPositionTexture(

            new Vector3(-1, -1, 0), new Vector2(0, 1));

            verts[3] = new VertexPositionTexture(

            new Vector3(1, -1, 0), new Vector2(1, 1));



            //设置数据 到VertexBuffer

            vertexBuffer = new VertexBuffer(GraphicsDevice, typeof(VertexPositionTexture),

verts.Length, BufferUsage.None);////

            vertexBuffer.SetData(verts);//



            // Initialize the BasicEffect

            effect = new BasicEffect(GraphicsDevice);//



            btnArr.Add("确定");//

            btnArr.Add("取消");//

            RasterizerState rs = new RasterizerState();

            rs.CullMode = CullMode.None;

            GraphicsDevice.RasterizerState = rs;



        }



        protected override void UnloadContent()

        {



        }





        protected override void Update(GameTime gameTime)

        {



            if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)

                this.Exit();



            

            worldTranslation *= Matrix.CreateTranslation(-0.002f, 0, 0);

            worldRotation *= Matrix.CreateFromYawPitchRoll(MathHelper.PiOver4 / 60,0,0);



            base.Update(gameTime);

        }





        protected override void Draw(GameTime gameTime)

        {

            GraphicsDevice.Clear(Color.CornflowerBlue);



            GraphicsDevice.SetVertexBuffer(vertexBuffer);//



            effect.World = worldRotation * worldTranslation;

            effect.View = camera.view;

            effect.Projection = camera.projection;

            effect.Texture = texture;

            effect.TextureEnabled = true;



            // Begin effect and draw for each pass

            foreach (EffectPass pass in effect.CurrentTechnique.Passes)

            {

                pass.Apply();

                GraphicsDevice.DrawUserPrimitives<VertexPositionTexture>

(PrimitiveType.TriangleStrip, verts, 0, 2);

            }



            base.Draw(gameTime);

        }



    }

}

Camera.cs

using System;

using System.Collections.Generic;

using System.Linq;

using Microsoft.Xna.Framework;

using Microsoft.Xna.Framework.Audio;

using Microsoft.Xna.Framework.Content;

using Microsoft.Xna.Framework.GamerServices;

using Microsoft.Xna.Framework.Graphics;

using Microsoft.Xna.Framework.Input;

using Microsoft.Xna.Framework.Media;





namespace WPGameTest1

{

    /// <summary>

    /// This is a game component that implements IUpdateable.

    /// </summary>

    public class Camera : Microsoft.Xna.Framework.GameComponent

    {

        public Matrix view { get; protected set; }

        public Matrix projection { get; protected set; }



        public Camera(Game game, Vector3 pos, Vector3 target, Vector3 up)

            : base(game)

        {

            view = Matrix.CreateLookAt(pos, target, up);//摄像机的：坐标  目标  朝向

            projection = Matrix.CreatePerspectiveFieldOfView(

            MathHelper.PiOver4,

            (float)Game.Window.ClientBounds.Width /

            (float)Game.Window.ClientBounds.Height,

            1, 100);//摄像机的：视角弧度,通常是45度或者π/4  摄像机长宽比,通常使用屏幕宽度除以屏幕高度 最近看清距离 最远看清距离

        }



        /// <summary>

        /// Allows the game component to perform any initialization it needs to before starting

        /// to run.  This is where it can query for any required services and load content.

        /// </summary>

        public override void Initialize()

        {

            // TODO: Add your initialization code here



            base.Initialize();

        }



        /// <summary>

        /// Allows the game component to update itself.

        /// </summary>

        /// <param name="gameTime">Provides a snapshot of timing values.</param>

        public override void Update(GameTime gameTime)

        {

            // TODO: Add your update code here



            base.Update(gameTime);

        }

    }

}