Implemented current_player into board and O's into board_make_move

[ttt] / src / ttt-board.c

diff --git a/src/ttt-board.c b/src/ttt-board.c
index dd068b5850285110f84e5436f2fa99c960b2910d..64443155e5baa06aa5426d564970216f957ae3a6 100644 (file)
--- a/src/ttt-board.c
+++ b/src/ttt-board.c
@@ -19,7 +19,9 @@
  * Author: Carl Worth <cworth@cworth.org>
  */
 
+#include <stdio.h>
 #include "ttt-board.h"
+#include "ttt-error.h"
 
 /* Initialize an empty board. */
 void
@@ -30,6 +32,7 @@ ttt_board_init (ttt_board_t *board)
     {
        board->cells[i] = TTT_CELL_EMPTY;
     }
+    board->current_player = TTT_CELL_X;
 }
 
 /* Initialize a board from its string representation.
@@ -82,3 +85,45 @@ ttt_board_write (ttt_board_t *board, FILE *file)
     free (s);
 }
 
+/* Makes a new move in the given board.
+ *
+ * The move value is a number from 0 to 9 giving the position to be
+ * moved as follows:
+ * 
+ *  0|1|2
+ *  3|4|5
+ *  6|7|8
+ *
+ * Returns: 1 if a move is made succesfully. O if a move is invalid
+ * (the given cell is not empty).
+ *
+ * Bugs: Currently this function always places X for all moves. So,
+ * yeah, we'll need to fix that.
+ */
+
+ 
+ttt_error_t ttt_board_make_move (ttt_board_t *board, int move)
+{  
+    if (board->cells[move] != '_')
+    {
+       return(TTT_ERROR_NOT_VALID_MOVE);
+    }
+
+    if (board->current_player == TTT_CELL_X)
+    {       
+       board->cells[move] = 'X';
+       board->current_player = TTT_CELL_O;     
+    }
+    else
+    {
+       board->cells[move] = 'O';
+       board->current_player = TTT_CELL_X;
+    }
+    return(TTT_ERROR_NONE);
+}
+
+
+
+
+
+