MAJOR re-write. Split plomrogue into a server and a client. Re-wrote large parts

[plomrogue] / src / server / yx_uint16.c

diff --git a/src/server/yx_uint16.c b/src/server/yx_uint16.c
new file mode 100644 (file)
index 0000000..d793000
--- /dev/null
+++ b/src/server/yx_uint16.c
@@ -0,0 +1,39 @@
+/* src/server/yx_uint16.c */
+
+#include "yx_uint16.h"
+#include <stdint.h> /* uint8_t, UINT16_MAX */
+#include "../common/yx_uint16.h" /* yx_uint16 struct */
+
+
+
+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;
+    }
+    return 0;
+}
+
+
+
+extern struct yx_uint16 mv_yx_in_dir(char d, struct yx_uint16 yx)
+{
+    if      (d == 'N' && yx.y > 0)
+    {
+        yx.y--;
+    }
+    else if (d == 'E' && yx.x < UINT16_MAX)
+    {
+        yx.x++;
+    }
+    else if (d == 'S' && yx.y < UINT16_MAX)
+    {
+        yx.y++;
+    }
+    else if (d == 'W' && yx.x > 0)
+    {
+        yx.x--;
+    }
+    return yx;
+}