X-Git-Url: https://git.cworth.org/git?p=dvonn;a=blobdiff_plain;f=dvonn-board.c;fp=dvonn-board.c;h=795ff5531d6ed2726e4b24907ccbb5ecbc5fe96f;hp=35789e7d13a238748dd3b07e5a95aed218ed0d95;hb=0eff3c58b93ea73e7f1aa866f6e317714479dd6e;hpb=eff695079bc44eb96226db9db6fd6cacc9497b9b

diff --git a/dvonn-board.c b/dvonn-board.c
index 35789e7..795ff55 100644
--- a/dvonn-board.c
+++ b/dvonn-board.c
@@ -76,7 +76,9 @@ dvonn_board_init (dvonn_board_t *board)
 	}
     }
 
+    board->phase = DVONN_PHASE_PLACEMENT;
     board->player = DVONN_PLAYER_WHITE;
+    board->moves = 0;
 }
 
 static dvonn_bool_t
@@ -123,12 +125,49 @@ dvonn_board_next_player (dvonn_board_t *board)
 	board->player = DVONN_PLAYER_BLACK;
 }
 
+int
+dvonn_board_place (dvonn_board_t *board,
+		   int x, int y,
+		   char **error)
+{
+    if (board->phase != DVONN_PHASE_PLACEMENT) {
+	*error = "Cannot place outside of placement phase";
+	return FALSE;
+    }
+
+    if (board->cells[x][y].type != DVONN_CELL_EMPTY) {
+	*error = "Cannot place on an occupied space";
+	return FALSE;
+    }
+
+    if (board->moves < 3)
+	board->cells[x][y].type = DVONN_CELL_RED;
+    else if (board->moves % 2)
+	board->cells[x][y].type = DVONN_CELL_BLACK;
+    else
+	board->cells[x][y].type = DVONN_CELL_WHITE;
+
+    board->moves++;
+
+    if (board->moves == 49) {
+	board->phase = DVONN_PHASE_MOVEMENT;
+	board->moves = 0;
+    }
+
+    return TRUE;
+}
+
 int
 dvonn_board_move (dvonn_board_t *board,
 		  int x1, int y1,
 		  int x2, int y2,
 		  char **error)
 {
+    if (board->phase != DVONN_PHASE_MOVEMENT) {
+	*error = "Cannot move outside of placement phase";
+	return FALSE;
+    }
+
     if (! dvonn_board_move_legal (board, x1, y1, x2, y2, error))
 	return FALSE;