X-Git-Url: https://plomlompom.com/repos/day?a=blobdiff_plain;f=src%2Fserver%2Fmap.h;h=9e3c54858033011cc193c4a5b81007d5f5e39a5c;hb=639a12151eeb7ce0d18de330b4bb8d9d8094c4d3;hp=e97a800ce4b1df0694a1bf2cafef56aa0abaa26c;hpb=6b1d36c9e673fd8f8595119080dca63a39ba483b;p=plomrogue

diff --git a/src/server/map.h b/src/server/map.h
index e97a800..9e3c548 100644
--- a/src/server/map.h
+++ b/src/server/map.h
@@ -1,12 +1,12 @@
 /* src/server/map.h
  *
- * Struct for the game map and routines to create and scroll on it.
+ * Struct for the game map and routines to create and navigate on it.
  */
 
 #ifndef MAP_H
 #define MAP_H
 
-#include <stdint.h> /* uint8_t */
+#include <stdint.h> /* uint8_t, uint16_t */
 #include "../common/yx_uint8.h" /* yx_uint8 struct */
 #include "../common/yx_uint16.h" /* yx_uint16 struct */
 
@@ -25,6 +25,7 @@ struct Map
  * cell in the middle, then going into a cycle of repeatedly selecting a random
  * seal cell and transforming it into land if it is neighbor to land; the cycle
  * ends when a land cell is due to be created right at the border of the map.
+ * Lots of 'X' cells representing trees are put on the island, too.
  */
 extern void init_map();
 
@@ -33,6 +34,9 @@ extern void init_map();
  */
 extern uint8_t is_passable(struct yx_uint8 pos);
 
+/* Transform "yx" to an index position in the world map. */
+extern uint16_t yx_to_map_pos(struct yx_uint8 * yx);
+
 
 
 #endif