Bind {un,}lockVisibleFloor to lua

src/client/luafunctions.cpp

@@ -610,6 +610,8 @@ void Client::registerLuaFunctions()
     g_lua.bindClassMemberFunction<UIMap>("setMaxZoomIn", &UIMap::setMaxZoomIn);
     g_lua.bindClassMemberFunction<UIMap>("setMaxZoomOut", &UIMap::setMaxZoomOut);
     g_lua.bindClassMemberFunction<UIMap>("setMultifloor", &UIMap::setMultifloor);
+    g_lua.bindClassMemberFunction<UIMap>("lockVisibleFloor", &UIMap::lockVisibleFloor);
+    g_lua.bindClassMemberFunction<UIMap>("unlockVisibleFloor", &UIMap::unlockVisibleFloor);
     g_lua.bindClassMemberFunction<UIMap>("setVisibleDimension", &UIMap::setVisibleDimension);
     g_lua.bindClassMemberFunction<UIMap>("setViewMode", &UIMap::setViewMode);
     g_lua.bindClassMemberFunction<UIMap>("setAutoViewMode", &UIMap::setAutoViewMode);

src/client/uimap.h

@@ -47,6 +47,8 @@ public:
     void setMaxZoomIn(int maxZoomIn) { m_maxZoomIn = maxZoomIn; }
     void setMaxZoomOut(int maxZoomOut) { m_maxZoomOut = maxZoomOut; }
     void setMultifloor(bool enable) { m_mapView->setMultifloor(enable); }
+    void lockVisibleFloor(int floor) { m_mapView->lockFirstVisibleFloor(floor); }
+    void unlockVisibleFloor() { m_mapView->unlockFirstVisibleFloor(); }
     void setVisibleDimension(const Size& visibleDimension);
     void setViewMode(MapView::ViewMode viewMode)  { m_mapView->setViewMode(viewMode); }
     void setAutoViewMode(bool enable) { m_mapView->setAutoViewMode(enable); }