/// <summary>
/// THIS IS ONE OF THE MESSAGE DESIGN PATTERN METHODS.
/// This method sends the message to the other thread to be dealt with.
/// </summary>
/// <param name="otherShip"></param>
private void SendOtherShipAction(SpaceShip otherShip)
{
try
{
MessageDTO messageDto = InteractWithOtherShip?.Invoke(otherShip.name) ?? new MessageDTO()
{
intent = -1
};
if (messageDto.intent != -1)
{
shipThatWasMessaged = otherShip.name;
string message = JsonConvert.SerializeObject(messageDto);
otherShip.RecieveOtherShipAction(message);
// The ship waiting on the other ship to respond will busy wait to deal with any interactions.
shipStatus = ShipStatuses.Waiting;
}
}
catch (NullReferenceException)
{
// During the exiting of the code, the interactions will become null.
// Thus there will be a null referece exception thrown.
// This is because a thread is relying on a resource that is becoming removed when exiting.
return;
}
}
/// <summary>
/// THIS IS ONE OF THE MESSAGE DESIGN PATTERN METHODS.
/// This sends the response of the ship to the thread that concerns the other ship.
/// </summary>
/// <param name="messageDto">
/// message to respond to.
/// </param>
private void RespondToOtherShipAction(MessageDTO messageDto)
{
try
{
SpaceShip otherShip = Board.GetSpaceShip(messageDto.fromShipName);
if (otherShip == null)
{
return;
}
if (shipThatWasMessaged == otherShip.name)
{
shipStatus = ShipStatuses.Working;
}
if (reactionDictionary.Keys.Contains((Intents)messageDto.intent))
{
MessageDTO responseDto = reactionDictionary[(Intents)messageDto.intent]?.Invoke(messageDto) ?? new MessageDTO()
{
intent = -1
};
if (responseDto.intent == -1 || responseDto.intent == (int)Intents.Destroy)
{
shipStatus = ShipStatuses.Working;
}
string responseString = JsonConvert.SerializeObject(responseDto);
otherShip.RecieveOtherShipAction(responseString);
}
else if (messageDto.intent == -1)
{
shipStatus = ShipStatuses.Working;
}
else
{
string noInteractionMessage = JsonConvert.SerializeObject(new MessageDTO()
{
intent = (int)Intents.StopInteraction,
fromShipName = name,
tradeObject = null
});
otherShip.RecieveOtherShipAction(noInteractionMessage);
}
}
catch (ArgumentException)
{// safely catch if we can no longer respond to the other ship. So we can carry onwards.
Console.WriteLine("The ship " + messageDto.fromShipName + " was not found when we went to respond to it.");
}
catch (ShipDestroyedException)
{
Console.WriteLine("The ship " + name + " has been destroyed!");
}
}