xna intro workshop
DESCRIPTION
TRANSCRIPT
Who?
Who?
William
Higinbotham
First video game, 1958
First video game, 1958
Spacewar, 1962
The Galaxy Game, 1971
Pong, 1972
Spaceinvader, 1978
Commodore, 1982
Super Mario Bros, 1985
Wolfenstein 3D, 1992
Duke Nukem 3D, 1996
Call of Duty 4, 2007
Second Life
$5 million p.
month
NL game industry bigger than film industry
NL game
industry bigger
than
music industry
NL Game industie$ 1.47 miljard
Facts
World of Warcraft
[2007]
$ 1.176 BillionUSA [2007]$ 17.9 billion
Halo 3, first 24 hour$ 170 million
Turnover Ubisoft 2007$ 662.7 million
Microsoft’s
Windows
Microsoft’s DirectX
Microsoft’s
Xbox
Microsoft’s Xbox 360
Microsoft & gaming
XNA
• tools for game development
• Completely managed environment
• All aspects of game production in one system
• Game development is accessible
XNA Platform
• XNA Framework
• XNA Build
• XNA Framework Content Pipeline
• XNA Game Studio
What do you need?
• .NET 3.0• Visual Studio (C# Express is free!)• XNA Framework• XNA Game Studio
XNA Framework• Microsoft .NET CLR 3.0 (3.5?)
• Cross-Platform Game Development– Windows XP– Windows Vista– Xbox 360 – Zune
XNA Framework overview
Legend XNA Provides You Provide Community
Platform
CoreFramework
ExtendedFramework
XACT XINPUT XContentDirect3D
Graphics Audio Input Math Storage
Application Model Content Pipeline
Games Starter Kits Code Content Components
XNA Framework overview
Platform
CoreFramework
ExtendedFramework
XACT XINPUT XContentDirect3D
Graphics Audio Input Math Storage
Application Model Content Pipeline
Games Starter Kits Code Content Components
Legend XNA Provides You Provide Community
Starter Kits
“Take our games and make them your own”
• “Complete” games– Starting point for your own games– Available through “New Project…”– Hit F5 and done!– Documentation and tutorials
Components
• They use the standard gameloop– Initialize, Load, Update, Draw, Unload
• Create and re-use functionality• Use 3rd party components• Community has a standard• Menus, virtual keyboard, game
engine, game info, radar’s, map, etc…
Components
• Example of a Component– Virtual keyboard voor de XBOX 360
XNA Framework overview
Platform
CoreFramework
XACT XINPUT XContentDirect3D
Graphics Audio Input Math Storage
Legend XNA Provides You Provide Community
ExtendedFramework Application Model Content Pipeline
Games Starter Kits Code Content Components
Application Model
• Platform abstraction– Don’t worry about the platform
• First line of code is for your game
• Game class– Starting point for your game
Application Model
• Game– Initialize– LoadContent– Update– Draw– UnloadContent
• GameComponent, DrawableGameComponent
Game Class, starting point
Content Pipeline
• extensible content processing framework• 2D File Formats
(.DDS, .BMP, .JPG, .PNG, .TGA)• 3D File Formats (.FBX, .X)• Material File Formats (.FX)• Audio File Formats (.XAP)
Platform
ExtendedFramework
XACT XINPUT XContentDirect3D
Application Model Content Pipeline
Games Starter Kits Code Content Components
XNA Framework overview
Legend XNA Provides You Provide Community
CoreFramework Graphics Audio Input Math Storage
Core Framework
• Graphics– SpriteBatch, BasicEffect, Texture2d,
GraphicsDevice, Model, VertexBuffer• Audio
– SoundBank, WaveBank, Cue, AudioEngine
– Looping, Streaming en memory management
– low-level buffer management• Input
– GamePad, Keyboard, Mouse
Core Framework
• Math– MathHelper.ToRadians(float angle), PiOver4
• Storage– Title Storage (Shaders, Meshes, Textures,
Sounds…)– User Storage (Save games, Scores…)– Emulated on the Windows Platform
• Network– NetworkSession, PacketReader, NetworkGamer
XNA Framework Overzicht
Platform XACT XINPUT XContentDirect3D
Legend XNA Provides You Provide Community
CoreFramework
ExtendedFramework
Graphics Audio Input Math Storage
Application Model Content Pipeline
Games Starter Kits Code Content Components
Platform abstraction
• Don’t worry about the platform, but about your game!
• Mono started an implementation
XACT
• Microsoft Cross-Platform Audio Creation Tool
• Create audio files for XNA games• Compiles .wav files• Add info to the sound
– Looping, volume levels
Community
• 3D Models– Cars, Houses, humans, levels
• Mostly free• http://turbosquid.com/xna
Community
• Example of a community built Component– XNA Console
Deployment to Xbox 360
• What do you need to deploy to Xbox 360?– Xbox Live Account– XNA Game Launcher– Connection to computer– XNA Creators Club account
• XNA Creators Club account– 49 euro (4 months)– 99 euro (1 year)
Getting creative
• Creating games with XNA is easy!
We will be building
• Tank game– Drive, aim and shoot
Steps
• Run an empty game• Load graphical content• Show tank on screen• Handle user input
– Rotate– Move– Shoot
Step 1: Empty game
• Create a new XNA game • Run!
Step 2: Load Content
• Create a Tank Class– Vector2 (x,y) for position– Float (Radians) for direction
• 3 resources (tank, turret, canonball)• Texture2D
– ContentManager.Load<2DTexture>(“Tank”);
Step 3.1: Display content
• Draw tank • Draw turret
• Draw @ center of the screen• Does it matter what you draw first?
Step 3.2: Display content
• SpriteBatch.Begin();• SpriteBatch.Draw(7
implementations);• SpriteBatch.End();
• Screen– GraphicsManager.GraphicsDevice.Viewp
ort– 0,0 = top left corner– 800,600 = bottom right corner
Step 4: Handle User input
• KeyboardState = Keyboard.GetState();
• If (KeyboardState.isKeyDown(Keys.Up));
• Where do we place this code?
• Rotate (Tank & turret)• Move• Vector2 Movement = new Vector2();• Movement.X += moveDist * (float)Math.Cos(Rotation);• Movement.Y += moveDist * (float)Math.Sin(Rotation);
Step 5: Shoot
• CannonBall Class• One shot at a time (space invader
style)
Step 6: Shoot Enemy
• Draw stationary tank• Hit?
– Rectangle.Intersects– Advanced: Per pixel collision– Where should this code go?
• Draw tank health– Add new SpriteFont to content folder– Load Content– SpriteBatch.DrawString();
Step 7: Network code
• Sample code– Search for “XNA Network Prediction”– Uses Microsoft Live
• Create a local account
Resources
• http://creators.xna.com/• http://blogs.msdn.com/xna• http://www.turbosquid.com/xna• http://xbox360homebrew.com• http://www.riemers.net• http://www.xnadevelopment.com• Search for XNA at Google with Live
Search
Vragen?
Nintendo’s Wii!
Wiimote
• Knoppen• Accelerometer• IR-camera• Buzzer• Leds• Bluetooth
Accelerometer
• ADXL330 3-Axis ±3g iMEMS® Accelerometer
Accelerometer
Z (-3G, 3G)
Y (-3G,3G)
Accelerometer
1
0
0
Stil
Accelerometer
>1
0
0
Omhoog
Accelerometer
<1
0
0
Omlaag
IR-camera
• PixArt optical sensorMulti-Object Tracking engine (MOT sensor™)
• Sensor bar
IR-camera
Bluetooth
• BCM2042Advanced Wireless Keyboard/Mouse Bluetooth® Chip
• HID Device
Wiimote -> PC
• OS• Bluetooth Device• Bluetooth stack
API’s
RMX Automation
GlovePIE
WiinRemote
wiimote-api
WMD
WiiYourself!
libwiimote
WiimoteLib
WiimoteCPP
Wiiewer
Wiimotecomm
WiimoteLib classes
Simplicity
Demo time!
• Flying with the Wii