X-Git-Url: https://plomlompom.com/repos/foo.html?a=blobdiff_plain;f=src%2Fyx_uint16.h;h=325b22449570ca6fad0a18158a8ed07768e78bc2;hb=6907fb5902bd50d590b6886e6b30090db5b47444;hp=2a5b3ac4095c0d0ce7beadf8777a88cf5a79da2b;hpb=022f78b4ca5a98999f5e482277b0a317af91f404;p=plomrogue
diff --git a/src/yx_uint16.h b/src/yx_uint16.h
index 2a5b3ac..325b224 100644
--- a/src/yx_uint16.h
+++ b/src/yx_uint16.h
@@ -20,6 +20,8 @@ struct yx_uint16
uint16_t x;
};
+
+
/* Directions available for movement. */
enum dir
{
@@ -29,10 +31,19 @@ enum dir
WEST
};
-/* Return 1 if two yx_uint16 coordinates a and b are equal, else 0. */
-extern uint8_t yx_uint16_cmp(struct yx_uint16 a, struct yx_uint16 b);
-/* Return yx_uint16 coordinate one step from coordinate yx in direction dir. */
+
+/* Return 1 if two yx_uint16 coordinates at "a" and "b" are equal, else 0. */
+extern uint8_t yx_uint16_cmp(struct yx_uint16 * a, struct yx_uint16 * b);
+
+
+
+/* Return yx_uint16 coordinate one step from coordinate yx in direction dir.
+ *
+ * If an invalid dir "d" is passed, "yx" remains unchanged.
+ */
extern struct yx_uint16 mv_yx_in_dir(enum dir d, struct yx_uint16 yx);
+
+
#endif