Presence

Gaming Presence Service

This sample demonstrates a gaming presence service in which a game server (represented by the LoadGenerator application) sends periodic heartbeats to a cloud service (represented by the PresenceService application) containing the status of a game which it is hosting. Inside the service, a corresponding PresenceGrain is responsible for unpacking the heartbeat message and reflecting the state of the game in the PlayerGrain and GameGrain grains. The effects of this can be seen on a client application (PlayerWatcher), which polls the player for the current game session. Each time a new game session is returned, the client creates a new LoggerGameObserver which subscribes to the game grain so that status updates are pushed to it using the IGameObserver interface.

Build & Run

To build and run the sample step-by-step on the command line, use the following commands:

Build the solution using the .NET CLI:

dotnet build

Launch the server process:

dotnet run --project ./src/PresenceService

In a separate terminal window, launch the player watcher:

dotnet run --project ./src/PlayerWatcher

In a separate terminal window, launch the load generator:

dotnet run --project ./src/LoadGenerator