why are we using the short type?

src/alchemy.c

@@ -115,7 +115,7 @@ void herbsearch(unit * u, int max_take)
         (double)rherbs(r) / 100.0F, -0.01F);
 
     if (herbsfound > herbs) herbsfound = herbs;
-    rsetherbs(r, (short) (rherbs(r) - herbsfound));
+    rsetherbs(r, rherbs(r) - herbsfound);
 
     if (herbsfound) {
         produceexp(u, SK_HERBALISM, u->number);

src/bind_unit.c

@@ -327,7 +327,7 @@ static int tolua_unit_get_age(lua_State * L)
 static int tolua_unit_set_age(lua_State * L)
 {
     unit *self = (unit *)tolua_tousertype(L, 1, 0);
-    self->age = (short)tolua_tonumber(L, 2, 0);
+    self->age = (int)tolua_tonumber(L, 2, 0);
     return 0;
 }
 

src/economy.c

@@ -2071,7 +2071,7 @@ static void plant(unit * u, int raw)
     /* Alles ok. Abziehen. */
     use_pooled(u, rt_water, GET_DEFAULT, 1);
     use_pooled(u, itype->rtype, GET_DEFAULT, n);
-    rsetherbs(r, (short)(rherbs(r) + planted));
+    rsetherbs(r, rherbs(r) + planted);
     ADDMSG(&u->faction->msgs, msg_message("plant", "unit region amount herb",
         u, r, planted, itype->rtype));
 }

src/kernel/region.c

@@ -664,7 +664,7 @@ void rsetherbs(region *r, int value)
     assert(r->land || value==0);
     assert(value >= 0 && value<=SHRT_MAX);
     if (r->land) {
-        r->land->herbs = (short)value;
+        r->land->herbs = value;
     }
 }
 
@@ -1190,7 +1190,7 @@ void terraform_region(region * r, const terrain_type * terrain)
         }
         if (itype != NULL) {
             rsetherbtype(r, itype);
-            rsetherbs(r, (short)(50 + rng_int() % 31));
+            rsetherbs(r, 50 + rng_int() % 31);
         }
         else {
             rsetherbtype(r, NULL);
@@ -1455,7 +1455,7 @@ int region_get_morale(const region * r)
 void region_set_morale(region * r, int morale, int turn)
 {
     if (r->land) {
-        r->land->morale = (short)morale;
+        r->land->morale = morale;
         if (turn >= 0 && r->land->ownership) {
             r->land->ownership->morale_turn = turn;
         }

src/kernel/region.h

@@ -102,8 +102,8 @@ extern "C" {
         char *display;
         demand *demands;
         const struct item_type *herbtype;
-        short herbs;
+        int herbs;
-        short morale;
+        int morale;
         int trees[3];               /* 0 -> seeds, 1 -> shoots, 2 -> trees */
         int horses;
         int peasants;

src/laws.c

@@ -2530,12 +2530,12 @@ int group_cmd(unit * u, struct order *ord)
 
 int origin_cmd(unit * u, struct order *ord)
 {
-    short px, py;
+    int px, py;
 
     init_order_depr(ord);
 
-    px = (short)getint();
+    px = getint();
-    py = (short)getint();
+    py = getint();
 
     faction_setorigin(u->faction, getplaneid(u->region), px, py);
     return 0;