Scrolling pad now also has its own function with its own sanity checks.

[plomrogue] / roguelike.c

diff --git a/roguelike.c b/roguelike.c
index 8e7cae124fe62199842f53cf72d5b0759a28dfe9..e7ece3a0a58601b8d99a22b40ec1a10959e28422 100644 (file)
--- a/roguelike.c
+++ b/roguelike.c
@@ -46,12 +46,14 @@ void draw_keys_window (struct Win *);
 void toggle_window (struct WinMeta *, struct Win *);
 void init_keybindings(struct World *);
 struct Map init_map ();
+void map_scroll (struct Map *, char);
 void next_turn (struct World *);
 void update_log (struct World *, char *);
 void save_keybindings(struct World *);
 int get_action_key (struct KeyBinding *, char *);
 char * get_keyname(int);
-void mod_key (struct World *, struct WinMeta *);
+void keyswin_mod_key (struct World *, struct WinMeta *);
+void keyswin_move_selection (struct World *, char);
 char is_passable (struct World *, int, int);
 void move_player (struct World *, char);
 void player_wait(struct World *);
@@ -248,6 +250,17 @@ struct Map init_map () {
       map.cells[(y * map.width) + x] = terrain; }
   return map; }
 
+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++; }
+
 void next_turn (struct World * world) {
 // Increment turn and move enemy.
   world->turn++;
@@ -348,8 +361,8 @@ char * get_keyname(int keycode) {
     sprintf(keyname, "(unknown)");
   return keyname;  }
 
-void mod_key (struct World * world, struct WinMeta * win_meta) {
-// In keybinding window, mark selection modifiable, modify key. Ensure max of three digits in key code field.
+void keyswin_mod_key (struct World * world, struct WinMeta * win_meta) {
+// In keybindings window, mark selection modifiable, modify key. Ensure max of three digits in key code field.
   world->keyswindata->edit = 1;
   draw_all_windows (win_meta);
   int key = getch();
@@ -357,6 +370,13 @@ void mod_key (struct World * world, struct WinMeta * win_meta) {
     world->keybindings[world->keyswindata->select].key = key;
   world->keyswindata->edit = 0; }
 
+void keyswin_move_selection (struct World * world, char dir) {
+// In keybindings window, move selection upwards or downwards (if within limits of list length).
+  if ('u' == dir && world->keyswindata->select > 0)
+    world->keyswindata->select--;
+  else if ('d' == dir && world->keyswindata->select < world->keyswindata->max)
+    world->keyswindata->select++; }
+
 char is_passable (struct World * world, int x, int y) {
 // Check if coordinate on (or beyond) map is accessible to movement.
   char passable = 0;
@@ -455,9 +475,9 @@ int main () {
     if      (key == get_action_key(world.keybindings, "quit"))
       break;
     else if (key == get_action_key(world.keybindings, "scroll pad right"))
-      win_meta.pad_offset++;
-    else if (key == get_action_key(world.keybindings, "scroll pad left") && win_meta.pad_offset > 0)
-      win_meta.pad_offset--;
+      scroll_pad (&win_meta, '+');
+    else if (key == get_action_key(world.keybindings, "scroll pad left"))
+      scroll_pad (&win_meta, '-');
     else if (key == get_action_key(world.keybindings, "toggle keys window"))
       toggle_window(&win_meta, &win_keys);
     else if (key == get_action_key(world.keybindings, "toggle map window"))
@@ -466,13 +486,13 @@ int main () {
       toggle_window(&win_meta, &win_info);
     else if (key == get_action_key(world.keybindings, "toggle log window"))
       toggle_window(&win_meta, &win_log);
-    else if (key == get_action_key(world.keybindings, "cycle forwards") && win_meta.active != 0)
+    else if (key == get_action_key(world.keybindings, "cycle forwards"))
       cycle_active_window(&win_meta, 'n');
-    else if (key == get_action_key(world.keybindings, "cycle backwards") && win_meta.active != 0)
+    else if (key == get_action_key(world.keybindings, "cycle backwards"))
       cycle_active_window(&win_meta, 'p');
-    else if (key == get_action_key(world.keybindings, "shift forwards")  && win_meta.active != 0)
+    else if (key == get_action_key(world.keybindings, "shift forwards"))
       shift_window(&win_meta, 'f');
-    else if (key == get_action_key(world.keybindings, "shift backwards") && win_meta.active != 0)
+    else if (key == get_action_key(world.keybindings, "shift backwards"))
       shift_window(&win_meta, 'b');
     else if (key == get_action_key(world.keybindings, "grow horizontally") && win_meta.active != 0)
       resize_window(&win_meta, '*');
@@ -484,20 +504,20 @@ int main () {
       resize_window(&win_meta, '-');
     else if (key == get_action_key(world.keybindings, "save keys"))
       save_keybindings(&world);
-    else if (key == get_action_key(world.keybindings, "keys nav up") && world.keyswindata->select > 0)
-      world.keyswindata->select--;
-    else if (key == get_action_key(world.keybindings, "keys nav down") && world.keyswindata->select < world.keyswindata->max)
-      world.keyswindata->select++;
+    else if (key == get_action_key(world.keybindings, "keys nav up"))
+      keyswin_move_selection (&world, 'u');
+    else if (key == get_action_key(world.keybindings, "keys nav down"))
+      keyswin_move_selection (&world, 'd');
     else if (key == get_action_key(world.keybindings, "keys mod"))
-      mod_key (&world, &win_meta);
-    else if (key == get_action_key(world.keybindings, "map up") && map.offset_y > 0)
-      map.offset_y--;
+      keyswin_mod_key (&world, &win_meta);
+    else if (key == get_action_key(world.keybindings, "map up"))
+      map_scroll (&map, 'n');
     else if (key == get_action_key(world.keybindings, "map down"))
-      map.offset_y++;
+      map_scroll (&map, 's');
     else if (key == get_action_key(world.keybindings, "map right"))
-      map.offset_x++;
-    else if (key == get_action_key(world.keybindings, "map left") && map.offset_x > 0)
-      map.offset_x--;
+      map_scroll (&map, 'e');
+    else if (key == get_action_key(world.keybindings, "map left"))
+      map_scroll (&map, 'w');
     else if (key == get_action_key(world.keybindings, "player down"))
       move_player(&world, 's');
     else if (key == get_action_key(world.keybindings, "player up"))