diff options
Diffstat (limited to 'ai.cpp')
| -rw-r--r-- | ai.cpp | 24 |
1 files changed, 13 insertions, 11 deletions
@@ -13,23 +13,25 @@ enum scores { LOSE_SCORE = -10 }; -AI::AI(int d) : max_depth(d) +AI::AI(int p, int d) : player(p), max_depth(d), first_move(true) { srand(time(NULL)); } -void AI::GetFirstMove(int &my, int &mx, int rows, int cols) -{ - my = rand() % rows; - mx = rand() % cols; -} - void AI::GetBestMove(int &my, int &mx, GameField field) { int score = MIN_SCORE; int rows = field.GetRows(); int cols = field.GetCols(); + // give chance to user :) + if(first_move) { + my = rand() % rows; + mx = rand() % cols; + first_move = false; + return; + } + int y, x; for(y = 0; y < rows; y++) { for(x = 0; x < cols; x++) @@ -37,7 +39,7 @@ void AI::GetBestMove(int &my, int &mx, GameField field) if(!field.CanMove(y, x)) continue; field.Move(y, x); - int result = min(field, 1); // min because next move by player + int result = min(field, 1); field.UndoMove(y, x); if(result > score) { score = result; @@ -54,9 +56,9 @@ int AI::score(GameField field) if(state == G_DRAW) return DRAW_SCORE; if(state == G_XPLAYER) - return field.GetWhoMove() == G_XPLAYER ? WIN_SCORE : LOSE_SCORE; + return player == G_XPLAYER ? WIN_SCORE : LOSE_SCORE; if(state == G_OPLAYER) - return field.GetWhoMove() == G_OPLAYER ? WIN_SCORE : LOSE_SCORE; + return player == G_OPLAYER ? WIN_SCORE : LOSE_SCORE; return NONE_SCORE; } @@ -104,7 +106,7 @@ int AI::max(GameField field, int depth) if(!field.CanMove(y, x)) continue; field.Move(y, x); - int result = max(field, depth + 1); + int result = min(field, depth + 1); field.UndoMove(y, x); if(result > score) score = result; |