xna game development
TRANSCRIPT
Game Development With Microsoft XNA Game StudioDo It Yourself
Introduction To XNA Game Studio
ByChanaka Nakandala
Game Development With Microsoft XNA Game StudioDo It Yourself
What is XNA Game Studio..?
XNA is a Framework and Toolset Provided by Microsoft Corporation for game development tasks.
That mean XNA is not a “Game Engine” , It’s a “Code library”.
XNA is build on top of the DirectX 9c.
Core Frameworks in XNA Framework
Graphics Audio Input Game Math
Storage
Microsoft XNA Game Studio 4.0
Features
Cross platformFeatures
What are those platforms..?
Windows Operating Systems (Windows Vista, Windows 7, Windows 8)
XBox 360
Windows Phone
Zune HD (only sprite based 2D games)
Cross platform - ComputerFeatures
Cross platform – Xbox 360Features
Cross platform – Windows MobileFeatures
Cross platform - ZuneFeatures
GraphicsFeatures
Sprite Batch for develop 2D games and ParticaleSystem
1.Normal Mapping2.Per Pixel Lighting3.Parallax Mapping
Enable to using 3D Models , Effects and Shaders
Support for HLSL (High Level Shader Language)
InputsFeatures
Easy to getting User Inputs
1.Mouse2.Keyboard3.Xbox 360 Game Controller4.Touch Panel ( Windows Phone , Zune )5.Accelermetor
Provides
AudioFeatures
Game audio is Based on XACT (Cross-PlatformAudio Creation Tool)
3D Audio
Able to use audio files via their logical names
Inbuilt XACT Tool as the sound asset
Support for Looping , Streaming and MemoryManagement
MathFeatures
Support for Vector , Matrix , Plane , Sphere , Curve
Intersection Helpers
Movement Helpers
StorageFeatures
Easier to Read and Write data to save game data
Save game data file in correct location in the each platform
NetworkingFeatures
Easy to create LAN Based Games.
Support for HTTP and TCP/UDP protocols to communicate with servers and devices
Able to create Multiplayer games to playthrough the Internet
How to develop a game using XNA..?
You may needs
Microsoft Visual Studio
Visual C# / Visual Basic.net
Microsoft XNA Game Studio 4.0
……And Windows Operating System
How to develop a game using XNA..?
You may needsGraphics Card supports Minimum Shader Model 1.1
DirectX 9.0c
How to develop a game using XNA..?
Gain of Visual C# / Visual Basic.net
Visual C# 2.0 , Visual C# 3.0 or Visual Basic.net are using as the programming language.
Components of Microsoft XNA Game Studio
Microsoft Visual Studio
XNA Framework
.net Framework
.net CompactFramework
WindowsPhone
Xbox 360 ZuneWindowsPC
XNA Game Studio Architecture
Game code (C#,VB) & Content
XNA Framework
Common Language Runtime (CLR)
Windows APIs, DirectX
Provided by you Provided for you
XNA has some sequence of built in methodsi. Initialize Deviceii. Load Game Assetsiii. Updateiv. Draw Game On The Screenv. Unload Gamevi. Free Resources
Life Cycle Of XNA Game
Life Cycle Of XNA GameDo It Yourself
Initialize Device
Load Game Assets Update
Draw Game On The Screen
Unload GameFree
Resources
Microsoft XNA Game Studio 4.0
Develop Games WithVisual C#
Steps
1.Visual Studio > create XNA project
2.Understand IDE
3.Introduction Game1.cs
Add new references to the project
References > Add reference
Microsoft XNA Game Studio 4.0
Game Contents
Content Includes All Game Assets…
Game Contents
Textures , Sprites,Fonts,3D Models , Effects,Music Tracks , Sound Effects,Game Level Data
Microsoft XNA Game Studio 4.0
Contents Pipeline
Content Pipeline
What is Content Pipeline…?Content Pipeline is a set of processes applied to a game’s assets when the game is built.
Advantages of Content Pipeline
Content Pipeline
Make Game fast in the run-time.
Able to use standard file formats such as jpg,bmp,png for textures and sprites fbx,x for 3D meshesmp3,wav for background music and sound fx.
Game Developer can insert the game assets conveniently design by Game Artists.
Add content to project
Right Click On Content Section
Add content to project
Add > 1.New Item or 2.Existing Item
Add > New Item
Microsoft XNA Game Studio 4.0
3.Introduction Game1.cs
Using .NET and XNA framework in C# project
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;
Frameworks
Dot NetFramework
XNAFramework
Life Cycle Of XNA GameDo It Yourself
Initialize Device
Load Game Assets Update
Draw Game On The Screen
Unload GameFree
Resources
Initialize Method
protected override void Initialize() { // TODO: Add your initialization logic here
base.Initialize(); }
Game1.cs
LoadContent Methodprotected override void LoadContent() { // Create a new SpriteBatch, which can be used to draw textures. spriteBatch = new SpriteBatch(GraphicsDevice); // TODO: use this.Content to load your game content here }
Game1.cs
Update Method
protected override void Update(GameTime gameTime) { // Allows the game to exit if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed) this.Exit();
// TODO: Add your update logic here
base.Update(gameTime); }
Game1.cs
Draw Method
protected override void Draw(GameTime gameTime) { GraphicsDevice.Clear(Color.CornflowerBlue);
// TODO: Add your drawing code here base.Draw(gameTime); }
Game1.cs
UnloadContent Method
protected override void UnloadContent() { // TODO: Unload any non ContentManager content here }
Game1.cs
