/// <summary>
/// Handles receiving a word.
/// </summary>
///<param name="e">The exception that was thrown when a word could not be received</param>
///<param name="message">The message containing the word</param>
///<param name="payload">The player that sent the message</param>
private void wordPlayed(string message, Exception e, object payload)
{
System.Diagnostics.Debug.WriteLine("Receiving a word");
// multiple words are not allowed to come in at once, it might corrupt the scores
lock (scoreLock)
{
if (receiveCallbackCheck(message, e, payload))
{
return;
}
Player player = ((Player)payload);
Player opponent = getOpponent(player);
// message format is: WORD (word)
System.Diagnostics.Debug.WriteLine("Received " + message + " from " + player.Name);
if (message.Contains("WORD "))
{
String word = message.Substring("WORD ".Length).ToUpper();
int wordValue = computeScore(word);
// First, check to see if the word was already played.
// Constant lookup time ensures efficiency.
if (!player.ValidWords.Contains(word) && !player.InvalidWords.Contains(word))
{
// if the word is invalid,
// take off 1 point, and add to the invalid words list.
if (wordValue == -1)
{
player.Score += wordValue;
player.InvalidWords.Add(word);
}
// else check to see if the opponent has played it
else
{
// if the opponent played the word, no one gets points for it
if (opponent.ValidWords.Contains(word))
{
//Subtract value of word from player 2's score.
opponent.Score -= wordValue;
}
//Else, add word value to player's score.
else
{
player.Score += wordValue;
}
//Add word to list of words that have been played.
player.ValidWords.Add(word);
}
}
sendScores();
}
else
{
//If message is not a valid command, send the ignoring statement.
player.Ignoring(message);
}
player.Socket.BeginReceive(wordPlayed, player);
}
}
