public void DoBeforeUpdatingTheState(
int currentTick,
DateTime nextTickTimeOnServer,
TimeSpan timeUntilNextTick,
DateTime localTimeBeforeGetStatusCall,
DateTime localTimeAfterGetStatusCall)
{
AllMobileStatesAccountedFor = new bool[Constants.MOBILE_ELEMENT_COUNT];
TankActionsTaken = new TankAction[Constants.TANK_COUNT];
for (int i = 0; i < TankActionsTaken.Length; i++)
{
TankActionsTaken[i] = TankAction.NONE;
}
PrevGameState = Game.Current.CurrentTurn.GameState;
NewGameState = PrevGameState.Clone();
NewGameState.Tick = currentTick;
NewGameState.Outcome = Outcome.InProgress;
// TODO: Ideally the current turn should be updated as the very last step,
// to prevent race conditions in scenarios where CurrentTurn is accessed
// from another thread before the game state is fully updated:
UpdateCurrentTurn(currentTick, nextTickTimeOnServer, timeUntilNextTick, localTimeBeforeGetStatusCall, localTimeAfterGetStatusCall);
}
private void CheckGameState()
{
GameState calculatedGameState = PrevGameState.Clone();
calculatedGameState.Tick = Game.Current.CurrentTurn.Tick;
if (calculatedGameState is MutableGameState)
{
MutableGameStateEngine.ApplyAllActions((MutableGameState)calculatedGameState, TankActionsTaken);
}
else
if (calculatedGameState is ImmutableGameState)
{
ImmutableGameStateEngine.ApplyActions((ImmutableGameState)calculatedGameState, TankActionsTaken);
}
else
{
throw new InvalidOperationException(
String.Format(
"The calculated game state on turn {0} can't be cast to a known game state type",
Game.Current.CurrentTurn.Tick
)
);
}
calculatedGameState.Outcome |= Outcome.InProgress;
Game.Current.CurrentTurn.GameStateCalculatedByGameStateEngine = calculatedGameState;
string reasonDifferent;
if (!GameState.AreGameStatesEquivalent(NewGameState, calculatedGameState, out reasonDifferent))
{
LogDebugMessage(
"ERROR! The calculated game state does not match the new harness game state. \r\nReason: {0}",
reasonDifferent);
#if THROW_HARNESS_ERRORS
throw new ApplicationException(
String.Format(
"The calculated game state does not match the new harness game state. \r\nReason: {0}",
reasonDifferent
)
);
#endif
// Workaround for a bug in the Entelect test harness on tick 1.
// Copy calculated game state into retrieved game state:
if (NewGameState.Tick == 1)
{
BitMatrix destWalls = NewGameState.Walls;
BitMatrix srcWalls = calculatedGameState.Walls;
// Copy walls from calculated game state:
for (int x = destWalls.TopLeft.X; x <= destWalls.BottomRight.X; x++)
{
for (int y = destWalls.TopLeft.Y; y <= destWalls.BottomRight.Y; y++)
{
destWalls[x, y] = srcWalls[x, y];
}
}
// Copy mobile states:
for (int i = 0; i < Constants.MOBILE_ELEMENT_COUNT; i++)
{
MobileState calculatedMobileState = calculatedGameState.GetMobileState(i);
NewGameState.SetMobileState(i, ref calculatedMobileState);
}
}
}
}