X-Git-Url: https://plomlompom.com/repos/foo.html?a=blobdiff_plain;ds=sidebyside;f=src%2Fyx_uint16.c;h=54274f404223486af0dee1735e3b9014d51ba8a1;hb=66e6f0d465c4d8af5c69f3eb255f8fe1b481a312;hp=afcab4db7a17d064a1faa36890576845bbd572b3;hpb=64e1bc2a874308530b7b45c33ed5d37f34f5f8be;p=plomrogue
diff --git a/src/yx_uint16.c b/src/yx_uint16.c
index afcab4d..54274f4 100644
--- a/src/yx_uint16.c
+++ b/src/yx_uint16.c
@@ -1,8 +1,42 @@
-#include "stdint.h"
-#include "yx_uint16.h"
+/* yx_uint16.c */
-extern char yx_uint16_cmp (struct yx_uint16 a, struct yx_uint16 b) {
-// Compare two coordinates of type yx_uint16.
- if (a.y == b.y && a.x == b.x) return 1;
- else return 0; }
+
+#include "yx_uint16.h" /* for uint8_t, uint16_t */
+
+
+
+extern uint8_t yx_uint16_cmp(struct yx_uint16 * a, struct yx_uint16 * b)
+{
+ if (a->y == b->y && a->x == b->x)
+ {
+ return 1;
+ }
+ else
+ {
+ return 0;
+ }
+}
+
+
+
+extern struct yx_uint16 mv_yx_in_dir(enum dir d, struct yx_uint16 yx)
+{
+ if (d == NORTH)
+ {
+ yx.y--;
+ }
+ else if (d == EAST)
+ {
+ yx.x++;
+ }
+ else if (d == SOUTH)
+ {
+ yx.y++;
+ }
+ else if (d == WEST)
+ {
+ yx.x--;
+ }
+ return yx;
+}