Feature 1865 leere unterhaltspflichtige Gebäude

Gebäude ohne Besitzer werden automatisch vom Regionsbesitzer übernommen
(Die Einheit wird sozusagen der neue Gebäudebesitzer). Betreten dann nur
noch wenn Helfe Bewache vom Regionsbesitzer.
Wichtig:
<param name="rules.region_owners" value="1"/>, ist Voraussetzung,  es
geht also nicht in E2.
Es kann für beliebige Gebäude eingeschaltet werden.
Example config :
<param name="rules.region_owner_pay_building" value="market harbour
lighthouse"/>

src/economy.c

@@ -1029,6 +1029,14 @@ static bool maintain(building * b, bool first)
   u = building_owner(b);
   if (u == NULL)
     return false;
+	 /* If the owner is the region owner, check if biggest castle has the dontpay flag */
+  if (get_param(global.parameters, "rules.region_owner_pay_building")) {
+	  if (u == building_owner(largestbuilding(r, &cmp_taxes, false))) {
+		  if (fval(u->building, BLD_DONTPAY)) {
+			  return false;
+		  }
+	  }
+  }
   for (c = 0; b->type->maintenance[c].number; ++c) {
     const maintenance *m = b->type->maintenance + c;
     int need = m->number;

src/kernel/building.c

@@ -654,7 +654,7 @@ void building_set_owner(struct unit * owner)
 static unit *building_owner_ex(const building * bld, const struct faction * last_owner)
 {
   unit *u, *heir = 0;
-
+  const char *btypes;
   /* Eigentümer tot oder kein Eigentümer vorhanden. Erste lebende Einheit
     * nehmen. */
   for (u = bld->region->units; u; u = u->next) {
@@ -670,6 +670,13 @@ static unit *building_owner_ex(const building * bld, const struct faction * last
       }
     }
   }
+  btypes = get_param(global.parameters, "rules.region_owner_pay_building");
+  if (btypes && !heir && (strstr(btypes, bld->type->_name) != NULL)) {
+	  u = building_owner(largestbuilding(bld->region, &cmp_taxes, false));
+	  if (u) {
+		  heir = u;
+	  }
+  }
   return heir;
 }
 

src/kernel/reports.c

@@ -1497,6 +1497,8 @@ static void prepare_reports(void)
 {
   region *r;
   faction *f;
+  building *b;
+  const char *btypes;
   const struct building_type *bt_lighthouse = bt_find("lighthouse");
 
   for (f = factions; f; f = f->next) {
@@ -1521,20 +1523,44 @@ static void prepare_reports(void)
       }
     }
 
-    for (u = r->units; u; u = u->next) {
+	/* Region owner get always the Lighthouse report */
-      if (u->building && u->building->type == bt_lighthouse) {
+	btypes = get_param(global.parameters, "rules.region_owner_pay_building");
-        /* we are in a lighthouse. add the regions we can see from here! */
+	if (btypes && strstr(btypes, bt_lighthouse->_name) != NULL) {
-        prepare_lighthouse(u->building, u->faction);
+		for (b = rbuildings(r); b; b = b->next) {
-      }
+			if (b && b->type == bt_lighthouse) {
+				u = building_owner(largestbuilding(r, &cmp_taxes, false));
+				/* alternativ: u = building_owner(b); if not all region owners should see */
+				if (u) {
+					prepare_lighthouse(b, u->faction);
+					if (u_race(u) != get_race(RC_SPELL) || u->number == RS_FARVISION) {
+						if (fval(u, UFL_DISBELIEVES)) {
+							add_seen(u->faction->seen, r, see_unit, true);
+						}
+						else {
+							add_seen(u->faction->seen, r, see_unit, false);
+						}
+					}
+				}
+			}
+		}
+	}
+	
+		for (u = r->units; u; u = u->next) {
+			if (u->building && u->building->type == bt_lighthouse) {
+				/* we are in a lighthouse. add the regions we can see from here! */
+				prepare_lighthouse(u->building, u->faction);
+			}
+
+			if (u_race(u) != get_race(RC_SPELL) || u->number == RS_FARVISION) {
+				if (fval(u, UFL_DISBELIEVES)) {
+					add_seen(u->faction->seen, r, see_unit, true);
+				}
+				else {
+					add_seen(u->faction->seen, r, see_unit, false);
+				}
+			}
+		}
 	
-      if (u_race(u) != get_race(RC_SPELL) || u->number == RS_FARVISION) {
-        if (fval(u, UFL_DISBELIEVES)) {
-          add_seen(u->faction->seen, r, see_unit, true);
-        } else {
-          add_seen(u->faction->seen, r, see_unit, false);
-        }
-      }
-    }
 
     if (fval(r, RF_TRAVELUNIT)) {
       for (ru = a_find(r->attribs, &at_travelunit);