use coordinates

1 files changed, 42 insertions, 25 deletions

diff --git a/lib/print.c b/lib/print.c
index 249e486..9282581 100644
--- a/lib/print.c
+++ b/lib/print.c
@@ -2,8 +2,26 @@
 #include <stdlib.h>
 
 #include "print.h"
+#include "board.h"
+#include "coordinate.h"
 #include "piece.h"
 
+static void _print_row_separator() {
+    int j;
+
+    for (j = 0; j < SIZE; j++)
+        printf("+---");
+
+    printf("+\n");
+}
+
+static Coord _next_coord(Coord c, Color side)  {
+        if (side == WHITE)
+            return coord_next(c);
+        else
+            return coord_prev(c);
+}
+
 /* Printing related functions */
 void print_piece(Piece p) {
     putchar(piece_character(p));
@@ -11,39 +29,38 @@ void print_piece(Piece p) {
 
 void print_square(Square s) {
     if (s.piece == NULL)
-        switch (s.color) {
-        case WHITE:
+        if (s.color == WHITE)
             putchar(' ');
-            break;;
-        case BLACK:
+        else
             putchar('/');
-            break;
-        default:
-            perror("Wait... what?\n");
-            exit(EXIT_FAILURE);
-        }
     else
         print_piece(*s.piece);
 }
 
-void print_board(Board b) {
-    int i, j;
+/*
+ * Pretty print the board. The "side" parameter lets you choose the
+ * orientation. Use WHITE for a white player perspective, BLACK otherwise.
+ */
+void print_board(Board b, Color side) {
+    Coord c = _next_coord(coord_null(), side);
+    char current_row = c.row;
 
-    for (i = 0; i < SIZE; i++) {
-        for (j = 0; j < SIZE; j++)
-            printf("+---");
-        printf("+\n");
+    _print_row_separator();
+    while (!coord_is_null(c)) {
+        // Print the square
+        printf("| ");
+        print_square(board_get_square(b, c));
+        putchar(' ');
 
-        for (j = 0; j < SIZE; j++) {
-            printf("| ");
-            print_square(b[i][j]);
-            putchar(' ');
-        }
-        printf("|\n");
-    }
+        // Shall we move forward or backwards?
+        c = _next_coord(c, side);
 
-    for (j = 0; j < SIZE; j++)
-        printf("+---");
-    printf("+\n");
+        // If the row changed then we must start a new line
+        if (c.row != current_row) {
+            printf("|\n");
+            _print_row_separator();
 
+            current_row = c.row;
+        }
+    }
 }