1 files changed, 32 insertions, 0 deletions

diff --git a/src/cube.c b/src/cube.c
index 0ccffa4..c2a457c 100644
--- a/src/cube.c
+++ b/src/cube.c
@@ -2,6 +2,8 @@
 
 #include "cube.h"
 
+static int where_is_piece(int piece, int *arr, int n);
+
 void
 compose(Cube *c2, Cube *c1)
 {
@@ -154,3 +156,33 @@ print_cube(Cube *cube)
                 printf("  %s ", center_string[cube->xp[i]]);
         printf("\n");
 }
+
+int
+where_is_center(Center x, Cube *c)
+{
+        return where_is_piece(x, c->xp, 6);
+}
+
+int
+where_is_corner(Corner k, Cube *c)
+{
+        return where_is_piece(k, c->cp, 8);
+}
+
+int
+where_is_edge(Edge e, Cube *c)
+{
+        return where_is_piece(e, c->ep, 12);
+}
+
+static int
+where_is_piece(int piece, int *arr, int n)
+{
+        int i;
+
+        for (i = 0; i < n; i++)
+                if (arr[i] == piece)
+                        return i;
+
+        return -1;
+}