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MAJOR re-write. Split plomrogue into a server and a client. Re-wrote large parts
[plomrogue] / src / server / yx_uint16.h
diff --git a/src/server/yx_uint16.h b/src/server/yx_uint16.h
new file mode 100644 (file)
index 0000000..04d2573
--- /dev/null
@@ -0,0 +1,25 @@
+/* src/server/yx_uint16.h
+ *
+ * Routines for comparison and movement with yx_uin16 structs.
+ */
+
+#ifndef YX_UINT16_H_SERVER
+#define YX_UINT16_H_SERVER
+
+#include <stdint.h> /* uint8_t */
+#include "../common/yx_uint16.h" /* yx_uint16 struct */
+
+
+
+/* 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 "yx" in direction "dir" (east: 'E',
+ * west: 'W', north: 'N', south: 'S'). If "dir" is invalid or would wrap the
+ * move around the edge of a 2^16x2^16 cells field, "yx" remains unchanged.
+ */
+extern struct yx_uint16 mv_yx_in_dir(char dir, struct yx_uint16 yx);
+
+
+
+#endif