WarpAttemptResult CanWarp(IShip warpingShip, Player warpingPlayer, IArea currentArea, int destinationAreaID, int warpholeIndex, out string denialString)
{
if (currentArea == null)
{
denialString = "";
return(WarpAttemptResult.CurrentAreaNotFound);
}
if (currentArea.Warpholes[warpholeIndex].DestinationAreaID != destinationAreaID)
{
denialString = "";
return(WarpAttemptResult.DestinationAreaIDMismatch);//Packet corruption or hacking attempt? Also potential multiple warp requests recieved and processed for the same warphole
}
if (TimeKeeper.MsSinceInitialization - warpingShip.LastWarpTime < ServerConfig.MinWarpPeriod)
{
denialString = "";//Probably better to fail silently
return(WarpAttemptResult.StillInWarpCooldown);
}
if (!currentArea.IsAreaConnected(destinationAreaID)) //Fixes a bug where a ship might send a second warp request before the first is complete, since we send warp indices instead of destination areas from the client
{
denialString = ""; //Clients will only get here if they are hacking or if there's a weird latency-caused pseudo-bug. Probably better to fail silently.
return(WarpAttemptResult.NotConnectedArea);
}
if (warpingShip.CurrentEnergy != warpingShip.MaxEnergy)//Do we want to allow [some] ships to warp without full energy?
{
denialString = "Warp failed: not enough energy.";
return(WarpAttemptResult.NotEnoughEnergy);
}
if (warpingShip.DistanceTo(currentArea.Warpholes[warpholeIndex]) > 2)
{
denialString = "";//Probably better to fail silently
return(WarpAttemptResult.NotNearWarp);
}
if (warpingPlayer.IsTrading)
{
denialString = "Can't warp while trading!";
return(WarpAttemptResult.Trading);
}
denialString = "";
return(WarpAttemptResult.Success);
}