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HandleCreatePlayerRequestSystem.cs
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HandleCreatePlayerRequestSystem.cs
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using System;
using Improbable.Gdk.Core;
using Improbable.Gdk.Core.Commands;
using Improbable.Worker.CInterop;
using Unity.Entities;
namespace Improbable.Gdk.PlayerLifecycle
{
[DisableAutoCreation]
[UpdateInGroup(typeof(SpatialOSUpdateGroup))]
public class HandleCreatePlayerRequestSystem : ComponentSystem
{
private CommandSystem commandSystem;
protected override void OnCreate()
{
base.OnCreate();
commandSystem = World.GetExistingSystem<CommandSystem>();
}
private class PlayerCreationRequestContext
{
public PlayerCreator.CreatePlayer.ReceivedRequest createPlayerRequest;
}
protected override void OnUpdate()
{
HandlePlayerCreateRequests();
HandlePlayerCreateEntityResponses();
}
private void HandlePlayerCreateRequests()
{
if (PlayerLifecycleConfig.CreatePlayerEntityTemplate == null)
{
throw new InvalidOperationException(Errors.PlayerEntityTemplateNotFound);
}
var requests = commandSystem.GetRequests<PlayerCreator.CreatePlayer.ReceivedRequest>();
for (var i = 0; i < requests.Count; ++i)
{
ref readonly var request = ref requests[i];
var playerEntityTemplate = PlayerLifecycleConfig.CreatePlayerEntityTemplate(
request.CallerWorkerId,
request.Payload.SerializedArguments
);
var entityRequest = new WorldCommands.CreateEntity.Request
(
playerEntityTemplate,
context: new PlayerCreationRequestContext
{
createPlayerRequest = request
}
);
commandSystem.SendCommand(entityRequest);
}
}
private void HandlePlayerCreateEntityResponses()
{
var responses = commandSystem.GetResponses<WorldCommands.CreateEntity.ReceivedResponse>();
for (var i = 0; i < responses.Count; i++)
{
ref readonly var response = ref responses[i];
if (!(response.Context is PlayerCreationRequestContext requestContext))
{
// Ignore non-player entity creation requests
continue;
}
if (response.StatusCode != StatusCode.Success)
{
var responseFailed = new PlayerCreator.CreatePlayer.Response(
requestContext.createPlayerRequest.RequestId,
$"Failed to create player: \"{response.Message}\""
);
commandSystem.SendResponse(responseFailed);
}
else
{
var responseSuccess = new PlayerCreator.CreatePlayer.Response(
requestContext.createPlayerRequest.RequestId,
new CreatePlayerResponse(response.EntityId.Value)
);
commandSystem.SendResponse(responseSuccess);
}
}
}
internal static class Errors
{
public const string PlayerEntityTemplateNotFound =
"PlayerLifecycleConfig.CreatePlayerEntityTemplate is not set.";
}
}
}