private int ScoreWindow(TokenWindow tokenWindow, ConnectFourToken playerToken)
{
// Ignore blank windows
if (tokenWindow.Tokens.All(t => t == ConnectFourToken.Blank))
{
return(0);
}
int score = 0;
// This player has four in a row
if (tokenWindow.Tokens.All(t => t == playerToken))
{
score += 100;
}
// This player has three placed with one blank in a window
else if (tokenWindow.Tokens.Count(t => t == playerToken) == 3 &&
tokenWindow.Tokens.Count(t => t == ConnectFourToken.Blank) == 1)
{
score += 50;
}
// Player has two tokens and two blank spaces in a window
else if (tokenWindow.Tokens.Count(t => t == playerToken) == 2 &&
tokenWindow.Tokens.Count(t => t == ConnectFourToken.Blank) == 2)
{
score += 20;
}
// Player has two tokens and two blank spaces in a window
else if (tokenWindow.Tokens.Count(t => t == playerToken) == 1 &&
tokenWindow.Tokens.Count(t => t == ConnectFourToken.Blank) == 3)
{
score += 10;
}
// Other player player has four in a row
else if (tokenWindow.Tokens.All(t => t != playerToken && t != ConnectFourToken.Blank))
{
score -= 100;
}
// Other player has three tokens and one blank space in a window
else if (tokenWindow.Tokens.Count(t => t != playerToken && t != ConnectFourToken.Blank) == 3 &&
tokenWindow.Tokens.Count(t => t == ConnectFourToken.Blank) == 1)
{
score -= 50;
}
// Other player has two tokens and two blank spaces in a window
else if (tokenWindow.Tokens.Count(t => t != playerToken && t != ConnectFourToken.Blank) == 2 &&
tokenWindow.Tokens.Count(t => t == ConnectFourToken.Blank) == 2)
{
score -= 20;
}
// Other player has two tokens and two blank spaces in a window
else if (tokenWindow.Tokens.Count(t => t != playerToken && t != ConnectFourToken.Blank) == 1 &&
tokenWindow.Tokens.Count(t => t == ConnectFourToken.Blank) == 3)
{
score -= 10;
}
return(score);
}
public bool IsWinningTokenWindow(TokenWindow tokenWindow)
{
return(tokenWindow.Tokens.Distinct().Count() == 1 &&
tokenWindow.Tokens.All(t => t != ConnectFourToken.Blank));
}