added faster menu selection for base game (required)

src/menu.cc

@@ -4,6 +4,7 @@
 
 const int NORMAL_CNT = 5;
 const int EXTRA_CNT  = 10;
+const int HOR_INCRM  = 5;
 
 const enum race RACES[EXTRA_CNT] = {
         rshade, rdrow, rgoblin, rvampire, rtroll,
@@ -74,7 +75,7 @@ const char *EXTRA_SCREEN =
 +-----------------------------------------------------------------------------+";
 
 int menu::run(input *in) {
-        size_t limit = enabled_features & FEATURE_EXTRA_STUFF ?
+        int limit = enabled_features & FEATURE_EXTRA_STUFF ?
                     EXTRA_CNT : NORMAL_CNT;
 
         auto cmd = in->get_command();
@@ -97,6 +98,35 @@ int menu::run(input *in) {
                 break;
         }
 
+        case move_east: {
+                if (curr + HOR_INCRM < limit)
+                        curr += HOR_INCRM;
+
+                break;
+        }
+
+        case move_west: {
+                if (curr - HOR_INCRM >= 0)
+                        curr -= HOR_INCRM;
+
+                break;
+        }
+
+        case select_shade:
+                return rshade;
+
+        case select_drow:
+                return rdrow;
+
+        case select_goblin:
+                return rgoblin;
+
+        case select_troll:
+                return rtroll;
+
+        case select_vampire:
+                return rvampire;
+
         case game_command_terminate:
                 return -2;