//Test Me
public int GetRatingForTile(GameCore gameCore, Tile tile, Object player)
{
int rating = 0;
//First check if placing a tile here will force the opponent to block us, or give the
//opponent a wining move. We shouldn't consider those tiles.
var copy = gameCore.Copy();
copy.DropTokenOnColumn(tile.ColumnNo);
var otherPlayerDirectWinnable = AIHelper.FindDirectWinningPossibilities(copy.Board, gameCore.GetOtherPlayer(player));
if (otherPlayerDirectWinnable.Count > 0)
{
//lower skilled players can miss an opponents winning move, especially if they are
//focused on their own win
if (_difficulty == AIDifficulty.VeryEasy)
{
rating -= 2;
}
else if (_difficulty == AIDifficulty.Easy)
{
rating -= 4;
}
else if (_difficulty == AIDifficulty.Medium)
{
rating -= 6;
}
else
{
//the other player can win if we play here, so don't play
return(-1000);
}
}
var usDirectWinnable = AIHelper.FindDirectWinningPossibilities(copy.Board, player);
if (usDirectWinnable.Count > 0)
{
//we can win next turn if we place here, forcing the other player to make a blocking move.
//It may be worth making the move anyway if it gives us a good position, and there isn't
//anything better, so don't completley discount it.
if (CanCreateCompulsion(copy.Board))
{
rating -= 3;
}
else
{
//if the player can't create compulsions we shouldn't penalize them for
//trying to win
if (_difficulty < AIDifficulty.Medium)
{
//lower skilled players will chase a win
rating += 2;
}
}
}
//We are trying to create general opportunities to head into the end game by creating
//potential token connections. So we want to look at where we have potential connections
//and try to build that area up to generate a compulsion.
rating += (FindTilesInConnection(gameCore, tile, player).Count * 2);
//Future ToDos
//Now check the opponents tile connections. Add points based on how many they have, sine we're
//blocking their position
if (_tryToBlockOpponentsGoodConnections)
{
rating += FindTilesInConnection(gameCore, tile, gameCore.GetOtherPlayer(player)).Count;
}
//Check what will happen once we play our tile. Does it open up any good positions?
//Do some planning stuff now:
//If placing a tile here will start a compulsion for us, add points
//If placing a tile here will block an opponents compulsion then add some points.
//Check the tile connections for the tile above this one. If the opponent would have good
//connections then subtract points. If we would have a good connections subtract points
//(since it alows the opponent to block us.
return(rating);
}
