outsideOnly: allow checking periodically in case a building was made outside and then became inside.

plugins/outsideOnly.cpp

@@ -30,8 +30,10 @@ static map<std::string, int32_t> registeredBuildings;
 const int32_t OUTSIDE_ONLY = 1;
 const int32_t EITHER = 0;
 const int32_t INSIDE_ONLY = -1;
+int32_t checkEvery = -1;
 
 void buildingCreated(color_ostream& out, void* data);
+void checkBuildings(color_ostream& out, void* data);
 command_result outsideOnly(color_ostream& out, vector<string>& parameters);
 
 DFhackCExport command_result plugin_init ( color_ostream &out, std::vector <PluginCommand> &commands)
@@ -44,6 +46,8 @@ DFhackCExport command_result plugin_init ( color_ostream &out, std::vector <Plug
         "    registers [custom building name] as inside-only\n"
         "  outsideOnly either [custom building name]\n"
         "    unregisters [custom building name]\n"
+        "  outsideOnly checkEvery [n]\n"
+        "    checks for buildings that were previously in appropriate inside/outsideness but are not anymore every [n] ticks. If [n] is negative, disables checking.\n"
         "  outsideOnly clear\n"
         "    unregisters all custom buildings\n"
         "  enable outsideOnly\n"
@@ -63,7 +67,7 @@ DFhackCExport command_result plugin_init ( color_ostream &out, std::vector <Plug
 DFhackCExport command_result plugin_onstatechange(color_ostream &out, state_change_event event)
 {
     switch (event) {
-    case SC_GAME_UNLOADED:
+    case SC_WORLD_UNLOADED:
         registeredBuildings.clear();
         break;
     default:
@@ -76,12 +80,59 @@ DFhackCExport command_result plugin_enable(color_ostream& out, bool enable) {
     if ( enabled == enable )
         return CR_OK;
     enabled = enable;
+    EventManager::unregisterAll(plugin_self);
     if ( enabled ) {
         EventManager::EventHandler handler(buildingCreated,1);
         EventManager::registerListener(EventManager::EventType::BUILDING, handler, plugin_self);
-    } else {
-        EventManager::unregisterAll(plugin_self);
+        checkBuildings(out, 0);
     }
+    return CR_OK;
+}
+
+void destroy(df::building* building) {
+    if ( Buildings::deconstruct(building) )
+        return;
+    building->flags.bits.almost_deleted = 1;
+}
+
+void checkBuildings(color_ostream& out, void* data) {
+    if ( !enabled )
+        return;
+    
+    std::vector<df::building*>& buildings = df::global::world->buildings.all;
+    for ( size_t a = 0; a < buildings.size(); a++ ) {
+        df::building* building = buildings[a];
+        if ( building == NULL )
+            continue;
+        if ( building->getCustomType() < 0 )
+            continue;
+        df::coord pos(building->centerx,building->centery,building->z);
+        df::tile_designation* des = Maps::getTileDesignation(pos);
+        bool outside = des->bits.outside;
+        df::building_def* def = df::global::world->raws.buildings.all[building->getCustomType()];
+        int32_t type = registeredBuildings[def->code];
+        
+        if ( type == EITHER ) {
+            registeredBuildings.erase(def->code);
+        } else if ( type == OUTSIDE_ONLY ) {
+            if ( outside )
+                continue;
+            destroy(building);
+        } else if ( type == INSIDE_ONLY ) {
+            if ( !outside )
+                continue;
+            destroy(building);
+        } else {
+            if ( DFHack::Once::doOnce("outsideOnly invalid setting") ) {
+                out.print("Error: outsideOnly: building has invalid setting: %s %d\n", def->code.c_str(), type);
+            }
+        }
+    }
+    
+    if ( checkEvery < 0 )
+        return;
+    EventManager::EventHandler timeHandler(checkBuildings,-1);
+    EventManager::registerTick(timeHandler, checkEvery, plugin_self);
 }
 
 command_result outsideOnly(color_ostream& out, vector<string>& parameters) {
@@ -95,15 +146,25 @@ command_result outsideOnly(color_ostream& out, vector<string>& parameters) {
             status = INSIDE_ONLY;
         } else if ( parameters[a] == "either" ) {
             status = EITHER;
-        } else {
+        } else if ( parameters[a] == "checkEvery" ) {
+            if (a+1 >= parameters.size()) {
+                out.printerr("You must specify how often to check.\n");
+                return CR_WRONG_USAGE;
+            }
+            checkEvery = atoi(parameters[a].c_str());
+        }
+        else {
             if ( status == 2 ) {
-                out.print("Error: you need to tell outsideOnly whether the building is inside only, outside-only or either.\n");
+                out.printerr("Error: you need to tell outsideOnly whether the building is inside only, outside-only or either.\n");
                 return CR_WRONG_USAGE;
             }
             registeredBuildings[parameters[a]] = status;
         }
     }
     out.print("outsideOnly is %s\n", enabled ? "enabled" : "disabled");
+    if ( enabled ) {
+        
+    }
     return CR_OK;
 }