Make map_scroll() use new direction macros and slightly re-styled its code.

[plomrogue] / src / roguelike.c

diff --git a/src/roguelike.c b/src/roguelike.c
index c8fbf5a78f1024eaa5657c5390eeb0d21fd08c3c..c2e3c4cbb4da4c5cfc3ff006cf810ebd14090d9f 100644 (file)
--- a/src/roguelike.c
+++ b/src/roguelike.c
@@ -80,11 +80,6 @@ struct yx_uint16 mv_yx_in_dir (char d, struct yx_uint16 yx) {
   else if (d == WEST)  yx.x--;
   return yx; }
 
-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; }
-
 void next_turn (struct World * world) {
 // Increment turn and move enemy.
   world->turn++;
@@ -193,14 +188,10 @@ void growshrink_active_window (struct WinMeta * win_meta, char change) {
 
 void map_scroll (struct Map * map, char dir) {
 // Scroll map into direction dir if possible by changing the offset.
-  if      ('n' == dir && map->offset_y > 0)
-    map->offset_y--;
-  else if ('s' == dir)
-    map->offset_y++;
-  else if ('w' == dir && map->offset_x > 0)
-    map->offset_x--;
-  else if ('e' == dir)
-    map->offset_x++; }
+  if      (NORTH == dir && map->offset_y > 0) map->offset_y--;
+  else if (SOUTH == dir)                      map->offset_y++;
+  else if (WEST  == dir && map->offset_x > 0) map->offset_x--;
+  else if (EAST  == dir)                      map->offset_x++; }
 
 unsigned char meta_keys(int key, struct World * world, struct WinMeta * win_meta, struct Win * win_keys,
                         struct Win * win_map, struct Win * win_info, struct Win * win_log) {
@@ -244,13 +235,13 @@ unsigned char meta_keys(int key, struct World * world, struct WinMeta * win_meta
   else if (key == get_action_key(world->keybindings, "keys mod"))
     keyswin_mod_key (world, win_meta);
   else if (key == get_action_key(world->keybindings, "map up"))
-    map_scroll (world->map, 'n');
+    map_scroll (world->map, NORTH);
   else if (key == get_action_key(world->keybindings, "map down"))
-    map_scroll (world->map, 's');
+    map_scroll (world->map, SOUTH);
   else if (key == get_action_key(world->keybindings, "map right"))
-    map_scroll (world->map, 'e');
+    map_scroll (world->map, EAST);
   else if (key == get_action_key(world->keybindings, "map left"))
-    map_scroll (world->map, 'w');
+    map_scroll (world->map, WEST);
   return 0; }
 
 int main (int argc, char *argv[]) {