X-Git-Url: https://git.cworth.org/git?p=ttt;a=blobdiff_plain;f=src%2Fttt-board.c;h=64443155e5baa06aa5426d564970216f957ae3a6;hp=582b85fd6469e7cbcc1d460eb02dc50ef51684b6;hb=b90882d3a092c28bdedf84271f1eca8b1744577c;hpb=ad9f96f734bb560c25ceca4facc85a84f4c3993f

diff --git a/src/ttt-board.c b/src/ttt-board.c
index 582b85f..6444315 100644
--- a/src/ttt-board.c
+++ b/src/ttt-board.c
@@ -19,17 +19,20 @@
  * Author: Carl Worth <cworth@cworth.org>
  */
 
+#include <stdio.h>
 #include "ttt-board.h"
+#include "ttt-error.h"
 
 /* Initialize an empty board. */
 void
 ttt_board_init (ttt_board_t *board)
 {
-  int i;
-  for (i = 0; i < TTT_BOARD_MAX_CELLS; i++)
+    int i;
+    for (i = 0; i < TTT_BOARD_MAX_CELLS; i++)
     {
-      board->cells[i] = 0;
+	board->cells[i] = TTT_CELL_EMPTY;
     }
+    board->current_player = TTT_CELL_X;
 }
 
 /* Initialize a board from its string representation.
@@ -54,7 +57,15 @@ ttt_board_init_from_string (ttt_board_t *board,
 char *
 ttt_board_to_string (ttt_board_t *board)
 {
-    /* XXX: NYI */
+    char *s;
+    xasprintf (&s, "\r\n" 
+	       "%c|%c|%c\r\n"
+	       "%c|%c|%c\r\n"
+	       "%c|%c|%c",
+	       board->cells[0], board->cells[1], board->cells[2], 
+	       board->cells[3], board->cells[4], board->cells[5], 
+	       board->cells[6], board->cells[7], board->cells[8]); 
+    return s;
 }
 
 /* Write a string representation of a board to the provided file.
@@ -74,3 +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);
+}
+
+
+
+
+
+