X-Git-Url: https://plomlompom.com/repos/?a=blobdiff_plain;f=src%2Fserver%2Fmap.h;h=9f09c02fcf64df87777e29e9759bde9778bb43e0;hb=ac7521c1d40b86cd7d33cef590353692542fa0a4;hp=9e3c54858033011cc193c4a5b81007d5f5e39a5c;hpb=639a12151eeb7ce0d18de330b4bb8d9d8094c4d3;p=plomrogue

diff --git a/src/server/map.h b/src/server/map.h
index 9e3c548..9f09c02 100644
--- a/src/server/map.h
+++ b/src/server/map.h
@@ -1,41 +1,44 @@
 /* src/server/map.h
  *
- * Struct for the game map and routines to create and navigate on it.
+ * This file is part of PlomRogue. PlomRogue is licensed under the GPL version 3
+ * or any later version. For details on its copyright, license, and warranties,
+ * see the file NOTICE in the root directory of the PlomRogue source package.
+ *
+ * Routines to create and navigate game map.
  */
 
-#ifndef MAP_H
-#define MAP_H
-
-#include <stdint.h> /* uint8_t, uint16_t */
-#include "../common/yx_uint8.h" /* yx_uint8 struct */
-#include "../common/yx_uint16.h" /* yx_uint16 struct */
-
+#ifndef MAP_H_SERVER
+#define MAP_H_SERVER
 
+#include <stdint.h> /* uint8_t */
+struct yx_uint8;
 
-struct Map
-{
-    struct yx_uint16 size; /* Map's height/width (use max. 256x256)! */
-    char * cells; /* Sequence of bytes encoding map cells. */
-};
 
 
-
-/* Initialize island map "~" cells representing water and "." cells representing
- * land. The island shape is built randomly by starting with a sea of one land
- * 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.
+/* (Re-)make island map "~" cells representing water and "." cells representing
+ * land. The island shape is built randomly from world.seed_map by starting with
+ * a sea of one land cell in the middle, then going into a cycle of repeatedly
+ * selecting a random sea 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.
  */
-extern void init_map();
+extern void remake_map();
 
-/* Check if coordinate "pos" on (or beyond) world.map is accessible to map
- * object movement.
+/* Move "yx" into hex direction "dir". Available hex directions are: 'e'
+ * (north-east), 'd' (east), 'c' (south-east), 'x' (south-west), 's' (west), 'w'
+ * (north-west). Returns 1 if the move was legal, else 0.
+ *
+ * A move is legal if "yx" ends up in the confines of the map and the original
+ * wrap space. The latter is left to a neighbor wrap space if "yx" moves beyond
+ * the minimal (0) or maximal (UINT8_MAX) column or row of possible map space –
+ * in which case "yx".y or "yx".x will snap to the respective opposite side. The
+ * current wrapping state is kept between successive calls until a "yx" of NULL
+ * is passed, in which case the function does nothing but zero the wrap state.
+ * Successive wrapping may move "yx" several wrap spaces into either direction,
+ * or return it into the original wrap space.
  */
-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);
+extern uint8_t mv_yx_in_dir_legal(char dir, struct yx_uint8 * yx);