Implement placement phase of game

[dvonn] / dvonn-board.h

diff --git a/dvonn-board.h b/dvonn-board.h
index c1c82707c180904fd7a96387a86fbc27716a2b1c..b0ee8cc46a449dfd5d7d4f4201b68140520567fe 100644 (file)
--- a/dvonn-board.h
+++ b/dvonn-board.h
@@ -37,6 +37,7 @@ typedef enum {
 typedef enum {
     DVONN_CELL_BLACK = DVONN_PLAYER_BLACK,
     DVONN_CELL_WHITE = DVONN_PLAYER_WHITE,
+    DVONN_CELL_RED,
     DVONN_CELL_EMPTY,
     DVONN_CELL_INVALID
 } dvonn_cell_type_t;
@@ -49,16 +50,32 @@ typedef struct {
 #define DVONN_BOARD_X_SIZE 11
 #define DVONN_BOARD_Y_SIZE 5
 
+typedef enum {
+    DVONN_PHASE_PLACEMENT,
+    DVONN_PHASE_MOVEMENT
+} dvonn_phase_t;
+
 typedef struct {
     dvonn_cell_t cells[DVONN_BOARD_X_SIZE][DVONN_BOARD_Y_SIZE];
-
+    dvonn_phase_t phase;
     dvonn_player_t player;
+    int moves;
 } dvonn_board_t;
 
 /* Initialize a board for a new game of DVONN. */
 void
 dvonn_board_init (dvonn_board_t *board);
 
+/* Place a piece at (x,y) where (0,0) is at the upper-left corner of
+ * the board. Returns TRUE if the move is legal and is performed. If
+ * the move is not legal this function returns FALSE, no change will
+ * be performed on the board, and *error will be set to a string
+ * describing why the move is illegal.*/
+int
+dvonn_board_place (dvonn_board_t *board,
+                  int x, int y,
+                  char **error);
+
 /* Move a piece from (x1,y1) to (x2,y2) where (0,0) is at the
  * upper-left corner of the board. Returns TRUE if the move is legal
  * and is performed. If the move is not legal this function returns