Implement :

[Project_algorithmic_C.git] / lib / othello.c

diff --git a/lib/othello.c b/lib/othello.c
index 4bbf120d6ed2da3dc6dc43e7dc720b14f9356b9a..1115e92d82563ac0e795ba8d1d633c81d48f2004 100644 (file)
--- a/lib/othello.c
+++ b/lib/othello.c
@@ -31,7 +31,7 @@ unsigned int current_player(unsigned int round_count) {
 }
 
 /* for consitency with ncurses, the board coordinates are in the following order:
- * O-x-->
+ * O--x-->
  * |
  * y
  * |
@@ -55,12 +55,12 @@ bool is_box_type(int y, int x, unsigned int pawn_array[board_size][board_size],
     }
 }
 
-/* helper function to set a value != empty at the (y, x) in the pawns array */
+/* helper function to set a value != empty at the (y, x) coordinates in the pawns array */
 int** set_pawn(int y, int x, unsigned int type, unsigned int pawn_array[board_size][board_size]) {
 
     if (is_box_type(y, x, pawn_array, empty)) {
         pawn_array[y-1][x-1] = type;
-        return pawn_array;
+        return (int**)pawn_array;
     } else {
         return NULL;
     }
@@ -73,7 +73,7 @@ static int** zero_pawns(unsigned int pawn_array[board_size][board_size]) {
             pawn_array = set_pawn(i, j, empty, pawn_array);
          }
     }
-    return pawn_array;
+    return (int**)pawn_array;
 }
 
 /* set the pawns in the start position */
@@ -84,7 +84,7 @@ int** init_pawns(unsigned int pawn_array[board_size][board_size]) {
     pawn_array = set_pawn(4, 5, black, pawn_array);
     pawn_array = set_pawn(4, 4, white, pawn_array);
     pawn_array = set_pawn(5, 5, white, pawn_array);
-    return pawn_array;
+    return (int**)pawn_array;
 }
 
 unsigned int count_pawn_type(unsigned int pawn_array[board_size][board_size], unsigned int type) {
@@ -95,7 +95,7 @@ unsigned int count_pawn_type(unsigned int pawn_array[board_size][board_size], un
     }
     for (unsigned int i = 1; i <= board_size; i++) {
         for (unsigned int j = 1; j <= board_size; j++) {
-            if (get_box_value(i, j, pawn_array) == type) {
+            if (is_box_type(i, j, pawn_array, type)) {
                 count++;
             }
         }
@@ -117,6 +117,7 @@ bool is_valid_input(int y, int x, unsigned int pawn_array[board_size][board_size
 
 bool is_board_full(unsigned int pawn_array[board_size][board_size]) {
 
+    /* an alternate method is to test the round count vs. 60 */
     for (unsigned int i = 1; i <= board_size; i++) {
         for (unsigned int j = 1; j <= board_size; j++) {
             if (is_box_type(i, j, pawn_array , empty)) {
@@ -138,14 +139,31 @@ unsigned int eval_winner(unsigned int nb_white, unsigned int nb_black) {
     }
 }
 
-void status_pawn(int y, int x, unsigned int pawn_array[board_size][board_size]) {
-
-}
-
-bool is_legal_box(int y, int x, int player, unsigned int pawn_array[board_size][board_size]) {
-
+void direction_to_coordinates(unsigned int direction, int* start_y, int* start_x) {
+
+    if (direction == north) {
+        *start_y = *start_y - 1;
+    } else if (direction == north_east) {
+        *start_y = *start_y - 1;
+        *start_x = *start_x + 1;
+    } else if (direction == east) {
+        *start_x = *start_x + 1;
+    } else if (direction == south_east) {
+        *start_y = *start_y + 1;
+        *start_x = *start_x + 1;
+    } else if (direction == south) {
+        *start_y = *start_y + 1;
+    } else if (direction == south_west) {
+        *start_y = *start_y + 1;
+        *start_x = *start_x - 1;
+    } else if (direction == west) {
+        *start_x = *start_x - 1;
+    } else if (direction == north_west) {
+        *start_y = *start_y - 1;
+        *start_x = *start_x - 1;
+    }
 }
 
-bool reverse_box(unsigned int pawn_array[board_size][board_size]) {
+bool explore(int y, int x, int direction) {
 
 }