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ÃåáÇ Èßã Ýí ÇáÏÑÓ ÇáËÇäí ãä ÓáÓáÉ ÏÑæÓ ÊÚáã 3D Xna (ÇáÓáÓáÉ ÇáËÇäíÉ)¡ Ýí åÐÇ ÇáÏÑÓ ÓæÝ äÊÍÏË Úä ÇáÎÇãÇÊ.
ÍÊì ÇááÍÙÉ¡ ÇáØÑíÞÉ ÇáæÍíÏÉ ÇáÊí ÅÓÊÎÏãäÇåÇ áÊáæíä ÇáãÔåÏ¡ åí ãä ÎáÇá ÊÚÑíÝ ÑÄæÓ ãäÝÕáÉ ÈÍíË íÍãá ßá ÑÃÓ áæä ãÎÊáÝ. ÈÇáÊÃßíÏ¡ áíÓÊ åÐå ÇáØÑíÞÉ ÇáÊí Êã ÕäÚ ÇáÃáÚÇÈ ÇáÍÏíËÉ ÇáÖÎãÉ ÈåÇ. XNA ÊÏÚã ØÑíÞÉ ÝÚÇáÉ ÌÏÇ áÅÖÇÝÉ ÇáÃáæÇä æ ÇáÕæÑ Åáì ÇáãÔåÏ: ÈÅãßÇäß ÈÈÓÇØÉ æÖÚ ÕæÑÉ Úáì ãËáË. íØáÞ Úáì åÐå ÇáÕæÑ ÅÓã ÇáÎÇãÇÊ “Textures”.
ßãËÇá Ãæáí¡ ÓæÝ äÞæã ÈÑÓã ãËáË æÇÍÏ ÈÓíØ¡ æÊÛØíÊå ÈÎÇãÉ. ÈÅãßÇäß ÇáÍÕæá Úáì ÎÇãÉ ÈÓíØÉ ãä ÇáÑÇÈØ åäÇ(ÈÅãßÇäß ÊäÒíáåÇ ãä ÎáÇá ÇáÖÛØ ÈÇáÒÑ ÇáÃíãä ááãÇæÓ Úáì ÇáÑÇÈØ æ ÅÎÊíÇÑ ÍÝÙ ÇáÕæÑå ÈÅÓã..) Ãæ ãä ÇáãáÝÇÊ ÇáãÑÝÞå Ýí ÇáÏÑÓ ÇáÃæá. ÈÚÏåÇ Þã ÈÅÓÊíÑÇÏ ÇáÕæÑÉ Åáì ãÌáÏ Çá Content Ýí Çá Solution Explorer¡ ÊãÇãÇ ßãÇ ÝÚáäÇ ãÚ ãáÝ ÇáÊÃËíÑ.
ÚäÏãÇ ÊÖÛØ Úáì ÇáãáÝ Ýí ÎÇäÉ ÇáContent Ýí Çá Solution Explorer¡ Óíßæä ÈÅãßÇäß ãÔÇåÏÉ ÅÓã åÐÇ ÇáãáÝ ÈÅÓã ‘riemerstexture’¡ æÐáß Ýí ãÑÈÚ ÇáÎÕÇÆÕ Ýí ÇáÌåå ÇáÓÝáì Çáíãäì ááÔÇÔÉ¡ ÈÅãßÇäß ÊÛííÑ åÐÇ ÇáÇÓã ßãÇ ÊÍÈ¡ áßä ÏÚå ßãÇ åæ ÇáÂä.
Ýí ÇáßæÏ¡ ÓæÝ äÞæã ÈÅÖÇÝÉ ãÊÛíÑ ÌÏíÏ áßí íÍãá ÕæÑÉ ÇáÎÇãÉ. Þã ÈÅÖÇÝÉ ÇáÓØÑ ÇáÊÇáí Ýí ÃÚáì ÇáßæÏ:

Texture2D texture;

texture = Content.Load<Texture2D> ("riemerstexture");

 VertexPositionTexture[] vertices;
 VertexDeclaration texturedVertexDeclaration;

 private void SetUpVertices()
 {
     vertices = new VertexPositionTexture[3];
     vertices[0].Position = new Vector3(-10f, 10f, 0f);
     vertices[0].TextureCoordinate.X = 0;
     vertices[0].TextureCoordinate.Y = 0;
 
     vertices[1].Position = new Vector3(10f, -10f, 0f);
     vertices[1].TextureCoordinate.X = 1;
     vertices[1].TextureCoordinate.Y = 1;
 
     vertices[2].Position = new Vector3(-10f, -10f, 0f);
     vertices[2].TextureCoordinate.X = 0;
     vertices[2].TextureCoordinate.Y = 1;
 
      texturedVertexDeclaration = new VertexDeclaration(device, VertexPositionTexture.VertexElements); 
}

 SetUpVertices ();

 Matrix worldMatrix = Matrix.Identity;
 effect.CurrentTechnique = effect.Techniques["Textured"];
 effect.Parameters["xWorld"].SetValue(worldMatrix);
 effect.Parameters["xView"].SetValue(viewMatrix);
 effect.Parameters["xProjection"].SetValue(projectionMatrix);
 effect.Parameters["xTexture"].SetValue(texture);
 effect.Begin();
 foreach (EffectPass pass in effect.CurrentTechnique.Passes)
 {
     pass.Begin();
      device.VertexDeclaration = texturedVertexDeclaration;
      device.DrawUserPrimitives(PrimitiveType.TriangleList, vertices, 0, 1);
     pass.End();
 }
 effect.End();

 private void SetUpVertices()
 {
      vertices = new VertexPositionTexture[6];
 
      vertices[0].Position = new Vector3(-10f, 10f, 0f);
      vertices[0].TextureCoordinate.X = 0;
      vertices[0].TextureCoordinate.Y = 0;
 
      vertices[1].Position = new Vector3(10f, -10f, 0f);
      vertices[1].TextureCoordinate.X = 1;
      vertices[1].TextureCoordinate.Y = 1;
 
      vertices[2].Position = new Vector3(-10f, -10f, 0f);
      vertices[2].TextureCoordinate.X = 0;
      vertices[2].TextureCoordinate.Y = 1;
 
      vertices[3].Position = new Vector3(10.1f, -9.9f, 0f);
      vertices[3].TextureCoordinate.X = 1;
      vertices[3].TextureCoordinate.Y = 1;
 
      vertices[4].Position = new Vector3(-9.9f, 10.1f, 0f);
      vertices[4].TextureCoordinate.X = 0;
      vertices[4].TextureCoordinate.Y = 0;
 
      vertices[5].Position = new Vector3(10.1f, 10.1f, 0f);
      vertices[5].TextureCoordinate.X = 1;
      vertices[5].TextureCoordinate.Y = 0;
 
      texturedVertexDeclaration = new VertexDeclaration(device, VertexPositionTexture.VertexElements);
 }

 device.DrawUserPrimitives(PrimitiveType.TriangleList, vertices, 0, 2);

ÇáÂä Þã ÈÊÔÛíá ÇáßæÏ¡ Óíßæä ÈÅãßÇäß ãÔÇåÏÉ ÕæÑÉ ÇáÎÇãÉ ßÇãáÉ ãÚÑæÖÉ Úáì ãËáËíä!


ÓæÝ ÊáÇÍÙ ÇáÝÑÇÛ ÇáÈÓíØ ÇáãæÌæÏ Èíä ÇáãËáËíä... ÇáÓÈÈ Ýí Ðáß åæ Ýí ÇáÍÞíÞÉ áÃääÇ ÞãäÇ ÈÊÚÑíÝ ÇáãæÇÞÚ ááÑÄæÓ ÈÇáØÑíÞÉ ÇáÓÇÈÞÉ¡ ÍíË ÊÊßæä ÇáÕæÑå ãä ãËáËíä ãäÝÕáíä.

ÍÇæá Íá ÇáÊãÇÑíä ÇáÊÇáíÉ:

 using System;
 using System.Collections.Generic;
 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.Net;
 using Microsoft.Xna.Framework.Storage;
 
 namespace XNAseries2
 {
  public class Game1 : Microsoft.Xna.Framework.Game
  {
  GraphicsDeviceManager graphics;
  GraphicsDevice device;
 
  Effect effect;
  Matrix viewMatrix;
  Matrix projectionMatrix;
 
  Texture2D texture;
 
  VertexPositionTexture[] vertices;
  VertexDeclaration texturedVertexDeclaration;
 
  public Game1()
  {
  graphics = new GraphicsDeviceManager(this);
  Content.RootDirectory = "Content";
  }
 
  protected override void Initialize()
  {
  graphics.PreferredBackBufferWidth = 500;
  graphics.PreferredBackBufferHeight = 500;
  graphics.IsFullScreen = false;
  graphics.ApplyChanges();
  Window.Title = "Riemer's XNA Tutorials -- Series 2";
 
  base.Initialize();
  }
 
  protected override void LoadContent()
  {
  device = graphics.GraphicsDevice;
 

effect = Content.Load<Effect> ("effects");

texture = Content.Load<Texture2D> ("riemerstexture");
 
  SetUpVertices();
  SetUpCamera();
  }
 
  private void SetUpVertices()
  {
  vertices = new VertexPositionTexture[6];
 
  vertices[0].Position = new Vector3(-10f, 10f, 0f);
  vertices[0].TextureCoordinate.X = 0;
  vertices[0].TextureCoordinate.Y = 0;
 
  vertices[1].Position = new Vector3(10f, -10f, 0f);
  vertices[1].TextureCoordinate.X = 1;
  vertices[1].TextureCoordinate.Y = 1;
 
  vertices[2].Position = new Vector3(-10f, -10f, 0f);
  vertices[2].TextureCoordinate.X = 0;
  vertices[2].TextureCoordinate.Y = 1;
 
  vertices[3].Position = new Vector3(10.1f, -9.9f, 0f);
  vertices[3].TextureCoordinate.X = 1;
  vertices[3].TextureCoordinate.Y = 1;
 
  vertices[4].Position = new Vector3(-9.9f, 10.1f, 0f);
  vertices[4].TextureCoordinate.X = 0;
  vertices[4].TextureCoordinate.Y = 0;
 
  vertices[5].Position = new Vector3(10.1f, 10.1f, 0f);
  vertices[5].TextureCoordinate.X = 1;
  vertices[5].TextureCoordinate.Y = 0;
 
  texturedVertexDeclaration = new VertexDeclaration(device, VertexPositionTexture.VertexElements);
  }
 
  private void SetUpCamera()
  {
  viewMatrix = Matrix.CreateLookAt(new Vector3(0, 0, 30), new Vector3(0, 0, 0), new Vector3(0, 1, 0));
  projectionMatrix = Matrix.CreatePerspectiveFieldOfView(MathHelper.PiOver4, device.Viewport.AspectRatio, 0.2f, 500.0f);
  }
 
  protected override void UnloadContent()
  {
  }

  protected override void Update(GameTime gameTime)
  {
       base.Update(gameTime);
  }
 
  protected override void Draw(GameTime gameTime)
  {
  device.Clear(ClearOptions.Target | ClearOptions.DepthBuffer, Color.DarkSlateBlue, 1.0f, 0);
 
  Matrix worldMatrix = Matrix.Identity;
  effect.CurrentTechnique = effect.Techniques["Textured"];
  effect.Parameters["xWorld"].SetValue(worldMatrix);
  effect.Parameters["xView"].SetValue(viewMatrix);
  effect.Parameters["xProjection"].SetValue(projectionMatrix);
  effect.Parameters["xTexture"].SetValue(texture);
  effect.Begin();
  foreach (EffectPass pass in effect.CurrentTechnique.Passes)
  {
  pass.Begin();
 
  device.VertexDeclaration = texturedVertexDeclaration;
  device.DrawUserPrimitives(PrimitiveType.TriangleList, vertices, 0, 2);
  pass.End();
  }
  effect.End();
 
  base.Draw(gameTime);
  }
  }
 }