LUMIA APP LABS: GAMES DEVELOPMENT USING WINDOWS PHONE 8

1. LUMIA APP LABS #7 GAMES DEVELOPMENT Lucian Tomuta Chief Engineer

3. WHAT’S NEW? - New and improved hardware - XNA replaced by a new Windows Phone game platform: - Maintains XNA compatibility - Reduce the cost to target Windows Phone - Allow use of native code (C++) - Share a large set of APIs with Windows 8 - Power of Direct3D (native or with XAML) - Improved monetisation © 2013 Nokia. All rights reserved. 1/23/2013 © 2013 Microsoft. All rights reserved.

4. - Qualcomm Snapdragon S4 - 1.5 GHz / 1 GHz - Adreno 225 / Adreno 305 - 768x1280 / 480x800 pixels - 1 GB (512 MB) - NFC, sensors, 4G … http://developer.nokia.com/Devices © 2013 Nokia. All rights reserved. 1/23/2013 © 2013 Microsoft. All rights reserved.

6. DIRECT3D APP MODEL C++ only Access to the new Windows Phone 8 APIs • Windows Runtime APIs, COM and Win32 style APIs • Which APIs can I call? http://tinyurl.com/WP8APIQS Reuse your C++ code • Statically linked or a DLL Supports activation and app lifecycle • CoreApplication, CoreWindow, CoreDispatcher © 2013 Nokia. All rights reserved. 1/23/2013 © 2013 Microsoft. All rights reserved.

7. XAML APP MODEL XAML app model extended C++ code reuse • Your own or other C++ libraries • Call COM / Win32 style APIs from within Windows runtime components Full access to the new Windows 8 shared API surface • Windows phone runtime APIs, COM and Win32 style APIs Direct3D composition • Render into a XAML scene from C++/Direct3D • 2 new XAML elements © 2013 Nokia. All rights reserved. 1/23/2013 © 2013 Microsoft. All rights reserved.

8. XAML + DIRECT3D DrawingSurface • Place anywhere • Draw to it from C++/Direct3D • Automatic composition with other XAML elements • Uses a Direct3D swap chain © 2013 Nokia. All rights reserved. 1/23/2013 © 2013 Microsoft. All rights reserved.

9. XAML + DIRECT3D DrawingSurfaceBackgroundGrid • The root element of the xaml page • You render to the from C++/Direct3D • Does not use a Direct3D swap chain • Performs better • Grid children are rendered on top © 2013 Nokia. All rights reserved. 1/23/2013 © 2013 Microsoft. All rights reserved.

10. XAML OR DIRECT3D APP ? XAML app • You need access to live tiles, notifications, background agents, XAML UI,… Direct3D app • You need the absolute best performance • You don’t need what the XAML app gives you How hard is it to switch? • It is very straightforward © 2013 Nokia. All rights reserved. 1/23/2013 © 2013 Microsoft. All rights reserved.

11. NATIVE DIRECT3D APPLICATION API: Direct3D 11.1 Hardware capabilities: feature level 9.3 Subset of Windows 8 • No Windows Imaging Component (WIC) • No Direct2D or DWrite DirectXTex: texture processing library Removed legacy features http://codeplex.com/directxtex • No GDI • No D3DX DirectX Tool Kit • No fixed function http://codeplex.com/directxtk • No runtime shader compilation © 2013 Nokia. All rights reserved. 1/23/2013 © 2013 Microsoft. All rights reserved.

12. INPUT & SENSORS Input Windows.Devices.Sensors • PointerPressed, PointerMoved, Accelerometer PointerReleased Gyrometer • KeyDown, KeyUp, Orientation CharacterRecieved, Show/Hide Onscreen Keyboard Compass Inclinometer Supports Polling and Events © 2013 Nokia. All rights reserved. 1/23/2013 © 2013 Microsoft. All rights reserved.

13. AUDIO SUPPORT XAudio2 Looping, 3D positioning, DSP effects, etc. Many at once In-memory PCM or ADPCM data IMFMediaEngine One at a time Compressed (MP3, WMA) Asynchronously streamed from the file system or URI © 2013 Nokia. All rights reserved. 1/23/2013 © 2013 Microsoft. All rights reserved.

14. VIDEO CUTSCENE SUPPORT Use IMFMediaEngine Initialise and set source Control playback Render video • Game retrieves video frame and renders video frame on the texture of an object in the game • Game uses OnVideoStreamTick to find out whether a new video frame is ready • Game uses TransferVideoFrame to copy video frame to DXGI surface • OS can render RGB and YUV(NV12) formats © 2013 Nokia. All rights reserved. 1/23/2013 © 2013 Microsoft. All rights reserved.

15. MULTIPLAYER GAMES TCP sockets with SSL support using StreamSocket/StreamSocketListener UDP sockets using DatagramSocket C++ HTTP support via XmlHTTPWebRequest2 Winsock Peer Finder API NFC based player discovery Play via WLAN or Bluetooth http://projects.developer.nokia.com/nfctalk © 2013 Nokia. All rights reserved. 1/23/2013 © 2013 Microsoft. All rights reserved.

16. GAME CLOUD Nokia Premium Developer Program and Buddy.com User account management Scoreboards and achievements Push Notifications Cross-platfom 1.000.000 API calls/month for a year © 2013 Nokia. All rights reserved. 1/23/2013 © 2013 Microsoft. All rights reserved.

17. HOW DO I MAKE MONEY - Ads - Cross-platform advertising solution offered by Nokia Ad Exchange - Try and buy - In-app purchase - Support for durable (game levels) and consumable (coins) items - Can be used from XNA games as well, see http://tinyurl.Com/iaplightup © 2013 Nokia. All rights reserved. 1/23/2013 © 2013 Microsoft. All rights reserved.

19. TIP! Your app can use up to 150 MB of available memory (up from 90 MB) If you need more, add the following capability to the app manifest: <App> … <FunctionalCapabilities> <FunctionalCapability Name="ID_FUNCCAP_EXTEND_MEM"/> </FunctionalCapabilities> </App> This will allow your app to use up to 180 MB on low spec devices or even 380 MB on devices with > 1 GB © 2013 Nokia. All rights reserved. 1/23/2013 © 2013 Microsoft. All rights reserved.

20. TIP! If your application cannot run at all on low memory devices, use ID_REQ_MEMORY_300 <App> … <Requirements> <Requirement Name="ID_REQ_FRONTCAMERA" /> <Requirement Name="ID_REQ_MEMORY_300" /> </Requirements> </App> This will make your app visible only to devices with 1GB RAM or more. © 2013 Nokia. All rights reserved. 1/23/2013 © 2013 Microsoft. All rights reserved.

LUMIA APP LABS: GAMES DEVELOPMENT USING WINDOWS PHONE 8

LUMIA APP LABS: GAMES DEVELOPMENT USING WINDOWS PHONE 8

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LUMIA APP LABS: GAMES DEVELOPMENT USING WINDOWS PHONE 8

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