//Normal Flow (no errors):
// v------------------- Request Denied ----------------------<---------------------------< >-- Play --v
// | | | | |
// V | | | |
// InPlayerLobby ------- Send Challenge Request ---> AwaitingChallengeRequestReponse -------+------- Request Accepted -------> InGame <-----<
// ^ ^ | | ^ |
// | | | | | |
// | | >----------- Receive Challenge Request ---> ReceivedChallengeRequest --------------^ | |
// | | | | | |
// | | | | | |
// | ^-------------------- Send Deny Reply --------------< >----- Send Accept Reply ----------------------------------------^ |
// | |
// ^-------------------------------------------------- Player Left Game ------------------------------------------------------------<
//
// Any error from the other player sends you back to InPlayerLobby, self disconnects return you to the server lobby.
public bool CouldTransitionTo(MultiplayerConnectionState newState)
{
switch (this.State)
{
// We can always return to the lobby - either the requests timed out, a player left the game, a request was declined, etc.
case MultiplayerConnectionState.InPlayerLobby:
break;
// We can only move to awaiting a response after sending a request from the lobby.
case MultiplayerConnectionState.AwaitingChallengeRequestReponse:
if (this.State != MultiplayerConnectionState.InPlayerLobby)
{
return(false);
}
break;
// We can only receive a request whilst in the lobby.
case MultiplayerConnectionState.ReceivedChallengeRequest:
if (this.State != MultiplayerConnectionState.InPlayerLobby)
{
return(false);
}
break;
// We can only move to in game after waiting for a/ sending an accepted response.
case MultiplayerConnectionState.InGame:
if (this.State != MultiplayerConnectionState.AwaitingChallengeRequestReponse)
{
return(false);
}
break;
}
return(true);
}
public void TransitionTo(MultiplayerConnectionState newState)
{
if (this.CouldTransitionTo(newState))
{
this.State = newState;
}
else
{
ModEntry.Instance.Monitor.Log($"Tried to transition from {this.State} to {newState}, but that's illegal.", LogLevel.Error);
}
}
public MultiplayerConnectionStateMachine()
{
this.State = MultiplayerConnectionState.InPlayerLobby;
}
