diff --git a/bauer/fabrikbauer.cc b/bauer/fabrikbauer.cc
index f691c2faaea..79abcb8be12 100644
--- a/bauer/fabrikbauer.cc
+++ b/bauer/fabrikbauer.cc
@@ -475,7 +475,7 @@ static fabrik_t* baue_fabrik(karte_t* welt, koord3d* parent, const fabrik_besch_
  */
 int fabrikbauer_t::baue_hierarchie(koord3d* parent, const fabrik_besch_t* info, int rotate, koord3d* pos, spieler_t* sp)
 {
-	karte_t* welt = sp->gib_welt();
+	karte_t* welt = sp->get_welt();
 	int n = 1;
 
 	if(info==NULL) {
diff --git a/boden/grund.h b/boden/grund.h
index f42bd235941..d46083a4500 100644
--- a/boden/grund.h
+++ b/boden/grund.h
@@ -242,7 +242,7 @@ class grund_t
 	 */
 	static void toggle_underground_mode() { grund_t::underground_mode = !grund_t::underground_mode; }
 
-	karte_t *gib_welt() const {return welt;}
+	karte_t *get_welt() const {return welt;}
 
 	/**
 	* Setzt Flags für das neuzeichnen geänderter Untergründe
diff --git a/dataobj/fahrplan.cc b/dataobj/fahrplan.cc
index cf41fab1786..29f4fa7e7f5 100644
--- a/dataobj/fahrplan.cc
+++ b/dataobj/fahrplan.cc
@@ -366,7 +366,7 @@ schifffahrplan_t::zeige_fehlermeldung(karte_t *welt) const
 bool
 airfahrplan_t::ist_halt_erlaubt(const grund_t *gr) const
 {
-	bool hat_halt = haltestelle_t::gib_halt(gr->gib_welt(),gr->gib_pos().gib_2d()).is_bound();
+	bool hat_halt = haltestelle_t::gib_halt(gr->get_welt(),gr->gib_pos().gib_2d()).is_bound();
 	return hat_halt ? gr->hat_weg(air_wt) : true;
 }
 
diff --git a/documentation/coding_styles.txt b/documentation/coding_styles.txt
index ddc0597e5b5..49345531694 100644
--- a/documentation/coding_styles.txt
+++ b/documentation/coding_styles.txt
@@ -24,6 +24,13 @@ yet conform 100% to this rules, but it should.
   -> Class names should be nouns because classes are static elements
   -> Method names should be verbs because methods are dynamic elements
 
+  There are some standard prefixes used throughout the program:
+   get_ gib_ return a value
+   set_ setze_ will set a value
+   is_ ist_ will test a conditions
+  For new functions, the first (english) form should be used. Function names
+  should never start with uppercase letters.
+
 - Use const wherever possible
   -> This helps the reader of the program (he sees which values are intended
      not to be changed) and the compiler (to optimize the code)
diff --git a/gui/components/gui_world_view_t.cc b/gui/components/gui_world_view_t.cc
index ab09bdf89d0..dd300dd8743 100644
--- a/gui/components/gui_world_view_t.cc
+++ b/gui/components/gui_world_view_t.cc
@@ -37,7 +37,7 @@ world_view_t::world_view_t(ding_t* dt) :
 	location(koord3d::invalid),
 	ding(dt),
 	raster(0),
-	welt(dt->World())
+	welt(dt->get_welt())
 {
     setze_groesse(koord(64,56));
 }
diff --git a/gui/convoi_detail_t.cc b/gui/convoi_detail_t.cc
index 86774e52d87..8a60dd99311 100644
--- a/gui/convoi_detail_t.cc
+++ b/gui/convoi_detail_t.cc
@@ -77,7 +77,7 @@ convoi_detail_t::zeichnen(koord pos, koord gr)
 		destroy_win(dynamic_cast <gui_fenster_t *>(this));
 	}
 	else {
-		if(cnv->gib_besitzer()==cnv->gib_welt()->get_active_player()) {
+		if(cnv->gib_besitzer()==cnv->get_welt()->get_active_player()) {
 			withdraw_button.enable();
 			sale_button.enable();
 		}
@@ -162,7 +162,7 @@ void gui_vehicleinfo_t::zeichnen(koord offset)
 		char buf[256], tmp[256];
 
 		// for bonus stuff
-		const sint32 ref_speed = cnv->gib_welt()->get_average_speed( cnv->gib_vehikel(0)->gib_waytype() );
+		const sint32 ref_speed = cnv->get_welt()->get_average_speed( cnv->gib_vehikel(0)->gib_waytype() );
 		const sint32 speed_base = (100*speed_to_kmh(cnv->gib_min_top_speed()))/ref_speed-100;
 
 		static cbuffer_t freight_info(1024);
diff --git a/gui/convoi_frame.cc b/gui/convoi_frame.cc
index 7022a69a179..014928b2b73 100644
--- a/gui/convoi_frame.cc
+++ b/gui/convoi_frame.cc
@@ -219,7 +219,7 @@ convoi_frame_t::~convoi_frame_t()
 
 void convoi_frame_t::display_list(void)
 {
-	const karte_t* welt = owner->gib_welt();
+	const karte_t* welt = owner->get_welt();
 	const unsigned count = welt->get_convoi_count();
 	ALLOCA(convoihandle_t, a, count);
 	int n = 0;
diff --git a/gui/convoi_info_t.cc b/gui/convoi_info_t.cc
index 871b1fb88ff..08a53350d04 100644
--- a/gui/convoi_info_t.cc
+++ b/gui/convoi_info_t.cc
@@ -202,11 +202,11 @@ convoi_info_t::zeichnen(koord pos, koord gr)
 		destroy_win(dynamic_cast <gui_fenster_t *> (this));
 	}
 	else {
-		if(cnv->gib_besitzer()==cnv->gib_welt()->get_active_player()) {
+		if(cnv->gib_besitzer()==cnv->get_welt()->get_active_player()) {
 			button.enable();
 			go_home_button.pressed = route_search_in_progress;
 			if (cnv->gib_fahrplan()->maxi() > 0) {
-				const grund_t* g = cnv->gib_welt()->lookup(cnv->gib_fahrplan()->eintrag[cnv->gib_fahrplan()->aktuell].pos);
+				const grund_t* g = cnv->get_welt()->lookup(cnv->gib_fahrplan()->eintrag[cnv->gib_fahrplan()->aktuell].pos);
 				if (g != NULL && g->gib_depot()) {
 					go_home_button.disable();
 				} else {
@@ -225,7 +225,7 @@ convoi_info_t::zeichnen(koord pos, koord gr)
 			go_home_button.disable();
 			no_load_button.disable();
 		}
-		follow_button.pressed = (cnv->gib_welt()->get_follow_convoi()==cnv);
+		follow_button.pressed = (cnv->get_welt()->get_follow_convoi()==cnv);
 
 		// buffer update now only when needed by convoi itself => dedicated buffer for this
 		cnv->get_freight_info(freight_info);
@@ -268,7 +268,7 @@ convoi_info_t::zeichnen(koord pos, koord gr)
 		const fahrplan_t * fpl = cnv->gib_fahrplan();
 		info_buf.clear();
 		info_buf.append(translator::translate("Fahrtziel"));
-		fahrplan_gui_t::gimme_short_stop_name(info_buf, cnv->gib_welt(), fpl, fpl->aktuell, 34);
+		fahrplan_gui_t::gimme_short_stop_name(info_buf, cnv->get_welt(), fpl, fpl->aktuell, 34);
 		len = display_proportional( pos.x+11, pos.y+16+20+3*LINESPACE, info_buf, ALIGN_LEFT, COL_BLACK, true );
 
 		// convoi load indicator
@@ -296,12 +296,12 @@ bool convoi_info_t::action_triggered(gui_komponente_t *komp,value_t /* */)
 {
 	// follow convoi on map?
 	if(komp == &follow_button) {
-		if(cnv->gib_welt()->get_follow_convoi()==cnv) {
+		if(cnv->get_welt()->get_follow_convoi()==cnv) {
 			// stop following
-			cnv->gib_welt()->set_follow_convoi( convoihandle_t() );
+			cnv->get_welt()->set_follow_convoi( convoihandle_t() );
 		}
 		else {
-			cnv->gib_welt()->set_follow_convoi(cnv);
+			cnv->get_welt()->set_follow_convoi(cnv);
 		}
 		return true;
 	}
@@ -323,7 +323,7 @@ bool convoi_info_t::action_triggered(gui_komponente_t *komp,value_t /* */)
 	}
 
 	// some actions only allowed, when I am the player
-	if(cnv->gib_besitzer()==cnv->gib_welt()->get_active_player()) {
+	if(cnv->gib_besitzer()==cnv->get_welt()->get_active_player()) {
 
 		if(komp == &button)     //Fahrplan
 		{
@@ -380,7 +380,7 @@ DBG_MESSAGE("convoi_info_t::action_triggered()","convoi state %i => cannot chang
 			bool b_depot_found = false;
 			if (shortest_route->gib_max_n() > -1) {
 				fahrplan_t *fpl = cnv->gib_fahrplan();
-				karte_t* welt = cnv->gib_welt();
+				karte_t* welt = cnv->get_welt();
 				fpl->insert(welt, welt->lookup(home));
 				b_depot_found = cnv->setze_fahrplan(fpl);
 			}
@@ -389,9 +389,9 @@ DBG_MESSAGE("convoi_info_t::action_triggered()","convoi state %i => cannot chang
 
 			// show result
 			if (b_depot_found) {
-				create_win(-1, -1, 120, new nachrichtenfenster_t(cnv->gib_welt(), translator::translate("Convoi has been sent\nto the nearest depot\nof appropriate type.\n")), w_autodelete);
+				create_win(-1, -1, 120, new nachrichtenfenster_t(cnv->get_welt(), translator::translate("Convoi has been sent\nto the nearest depot\nof appropriate type.\n")), w_autodelete);
 			} else {
-				create_win(-1, -1, 120, new nachrichtenfenster_t(cnv->gib_welt(), translator::translate("Home depot not found!\nYou need to send the\nconvoi to the depot\nmanually.")), w_autodelete);
+				create_win(-1, -1, 120, new nachrichtenfenster_t(cnv->get_welt(), translator::translate("Home depot not found!\nYou need to send the\nconvoi to the depot\nmanually.")), w_autodelete);
 			}
 		} // end go home button
 	}
diff --git a/gui/depot_frame.cc b/gui/depot_frame.cc
index cc6bb09044a..6c54123f264 100644
--- a/gui/depot_frame.cc
+++ b/gui/depot_frame.cc
@@ -176,7 +176,7 @@ DBG_DEBUG("depot_frame_t::depot_frame_t()","get_max_convoi_length()=%i",depot->g
 	bool old_show_all=show_all;
 	show_retired_vehicles = true;
 	show_all = true;
-	einstellungen_t* e = World()->gib_einstellungen();
+	einstellungen_t* e = get_welt()->gib_einstellungen();
 	char timeline = e->gib_use_timeline();
 	e->setze_use_timeline(0);
 	build_vehicle_lists();
@@ -563,7 +563,7 @@ void depot_frame_t::add_to_vehicle_list(const vehikel_besch_t *info)
 // add all current vehicles
 void depot_frame_t::build_vehicle_lists()
 {
-	const int month_now = World()->get_timeline_year_month();
+	const int month_now = get_welt()->get_timeline_year_month();
 
 	if (pas_vec.empty() && loks_vec.empty() && waggons_vec.empty()) {
 		int loks = 0, waggons = 0, pax=0;
@@ -591,7 +591,7 @@ void depot_frame_t::build_vehicle_lists()
 	vehicle_map.clear();
 
 	// we do not allow to built electric vehicle in a depot without electrification
-	const schiene_t* sch = dynamic_cast<const schiene_t*>(World()->lookup(depot->gib_pos())->gib_weg(track_wt));
+	const schiene_t* sch = dynamic_cast<const schiene_t*>(get_welt()->lookup(depot->gib_pos())->gib_weg(track_wt));
 	const bool schiene_electric = (sch==NULL)  ||  sch->is_electrified();
 
 	// use this to show only sellable vehicles
@@ -650,7 +650,7 @@ void depot_frame_t::update_data()
 	static const char *txt_veh_action[3] = { "anhaengen", "voranstellen", "verkaufen" };
 
 	// change green into blue for retired vehicles
-	const int month_now = World()->get_timeline_year_month();
+	const int month_now = get_welt()->get_timeline_year_month();
 
 	bt_veh_action.setze_text(txt_veh_action[veh_action]);
 
@@ -1068,7 +1068,7 @@ void depot_frame_t::infowin_event(const event_t *ev)
 
 			next_dep->zeige_info();
 			win_set_pos(next_dep->get_info_win(), x, y);
-			World()->setze_ij_off(next_dep->gib_pos());
+			get_welt()->setze_ij_off(next_dep->gib_pos());
 		}
 	} else if(IS_WINDOW_REZOOM(ev)) {
 		koord gr = gib_fenstergroesse();
@@ -1091,7 +1091,7 @@ void depot_frame_t::infowin_event(const event_t *ev)
 void
 depot_frame_t::zeichnen(koord pos, koord groesse)
 {
-	if (World()->get_active_player() != depot->gib_besitzer()) {
+	if (get_welt()->get_active_player() != depot->gib_besitzer()) {
 		destroy_win(this);
 	}
 
@@ -1201,11 +1201,11 @@ void depot_frame_t::fahrplaneingabe()
 			}
 		}
 		else {
-			create_win(100, 64, new nachrichtenfenster_t(World(), "Es wird bereits\nein Fahrplan\neingegeben\n"), w_autodelete);
+			create_win(100, 64, new nachrichtenfenster_t(get_welt(), "Es wird bereits\nein Fahrplan\neingegeben\n"), w_autodelete);
 		}
 	}
 	else {
-		create_win(100, 64, new nachrichtenfenster_t(World(), "Please choose vehicles first\n"), w_autodelete);
+		create_win(100, 64, new nachrichtenfenster_t(get_welt(), "Please choose vehicles first\n"), w_autodelete);
 	}
 }
 
diff --git a/gui/depot_frame.h b/gui/depot_frame.h
index 853bf1ae53c..45c3683c525 100644
--- a/gui/depot_frame.h
+++ b/gui/depot_frame.h
@@ -192,7 +192,7 @@ class depot_frame_t : public gui_frame_t,
 
 	void image_from_storage_list(gui_image_list_t::image_data_t *bild_data);
 
-	karte_t* World() { return depot->World(); }
+	karte_t* get_welt() { return depot->get_welt(); }
 
 public:
 	depot_frame_t(depot_t* depot);
diff --git a/gui/fabrik_info.cc b/gui/fabrik_info.cc
index 6ed14f32c45..1f7e40ccd5a 100644
--- a/gui/fabrik_info.cc
+++ b/gui/fabrik_info.cc
@@ -161,7 +161,7 @@ void fabrik_info_t::zeichnen(koord pos, koord gr)
    */
 bool fabrik_info_t::action_triggered(gui_komponente_t *komp,value_t /* */)
 {
-	karte_t* welt = ding->World();
+	karte_t* welt = ding->get_welt();
 	unsigned int i;
 
 	for(i=0; i<fab->gib_lieferziele().get_count(); i++) {
diff --git a/gui/fahrplan_gui.cc b/gui/fahrplan_gui.cc
index 9a2bf7cc7ab..652a5c90e0b 100644
--- a/gui/fahrplan_gui.cc
+++ b/gui/fahrplan_gui.cc
@@ -240,7 +240,7 @@ void fahrplan_gui_t::init()
 	line_selector.setze_pos(koord(BUTTON_WIDTH, 5));
 	line_selector.setze_groesse(koord(BUTTON_WIDTH*2, 14));
 	line_selector.set_max_size(koord(BUTTON_WIDTH*2, 13*LINESPACE+2+16));
-	karte_t* welt = sp->gib_welt();
+	karte_t* welt = sp->get_welt();
 	line_selector.set_highlight_color(welt->get_active_player()->get_player_color1() + 1);
 	line_selector.clear_elements();
 
@@ -303,7 +303,7 @@ fahrplan_gui_t::infowin_event(const event_t *ev)
 
 		fpl->cleanup();
 		fpl->eingabe_abschliessen();
-		karte_t* welt = sp->gib_welt();
+		karte_t* welt = sp->get_welt();
 		welt->setze_maus_funktion(wkz_abfrage, skinverwaltung_t::fragezeiger->gib_bild_nr(0), welt->Z_PLAN, NO_SOUND, NO_SOUND);
 		if (cnv.is_bound()) {
 			// if a line is selected
@@ -336,7 +336,7 @@ DBG_MESSAGE("fahrplan_gui_t::action_triggered()","komp=%p combo=%p",komp,&line_s
 	bt_add.pressed = true;
 	bt_insert.pressed = false;
 	bt_remove.pressed = false;
-			karte_t* welt = sp->gib_welt();
+			karte_t* welt = sp->get_welt();
       welt->setze_maus_funktion(wkz_fahrplan_add,
 				skinverwaltung_t::fahrplanzeiger->gib_bild_nr(0),
 				welt->Z_PLAN,
@@ -351,7 +351,7 @@ DBG_MESSAGE("fahrplan_gui_t::action_triggered()","komp=%p combo=%p",komp,&line_s
 		bt_add.pressed = false;
 		bt_insert.pressed = true;
 		bt_remove.pressed = false;
-			karte_t* welt = sp->gib_welt();
+			karte_t* welt = sp->get_welt();
       welt->setze_maus_funktion(wkz_fahrplan_ins,
 				skinverwaltung_t::fahrplanzeiger->gib_bild_nr(0),
 				welt->Z_PLAN,
@@ -366,7 +366,7 @@ DBG_MESSAGE("fahrplan_gui_t::action_triggered()","komp=%p combo=%p",komp,&line_s
 		bt_add.pressed = false;
 		bt_insert.pressed = false;
 		bt_remove.pressed = true;
-			karte_t* welt = sp->gib_welt();
+			karte_t* welt = sp->get_welt();
       welt->setze_maus_funktion(wkz_abfrage,
 				skinverwaltung_t::fragezeiger->gib_bild_nr(0),
 				welt->Z_PLAN,
@@ -412,7 +412,7 @@ DBG_MESSAGE("fahrplan_gui_t::action_triggered()","line selection=%i",selection);
 	} else if (komp == &bt_promote_to_line) {
 		new_line = sp->simlinemgmt.create_line(fpl->get_type(), this->fpl);
 		init_line_selector();
-//		create_win(-1, -1, 120, new nachrichtenfenster_t(sp->gib_welt(), translator::translate("New line created!\nYou can assign the line now\nby selecting it from the\nline selector above.")), w_autodelete);
+//		create_win(-1, -1, 120, new nachrichtenfenster_t(sp->get_welt(), translator::translate("New line created!\nYou can assign the line now\nby selecting it from the\nline selector above.")), w_autodelete);
 	}
 	return true;
 }
@@ -458,7 +458,7 @@ fahrplan_gui_t::get_fpl_text(cbuffer_t & buf)
 			buf.append(i==fpl->aktuell ? "> " : "   ");
 			buf.append(i+1);
 			buf.append(".) ");
-			gimme_stop_name(buf, sp->gib_welt(), fpl, i, 240);
+			gimme_stop_name(buf, sp->get_welt(), fpl, i, 240);
 			buf.append("\n");
 		}
 		buf.append("\n\n");
diff --git a/gui/ground_info.cc b/gui/ground_info.cc
index 617042bc603..ea909505ac4 100644
--- a/gui/ground_info.cc
+++ b/gui/ground_info.cc
@@ -21,7 +21,7 @@ static cbuffer_t gr_info(1024);
 grund_info_t::grund_info_t(const grund_t* gr_) :
 	gui_frame_t(gr_->gib_name(), NULL),
 	gr(gr_),
-	view(gr_->gib_welt(), gr_->gib_pos())
+	view(gr_->get_welt(), gr_->gib_pos())
 {
 	const ding_t* d = gr->obj_bei(0);
 	if (d != NULL) set_owner(d->gib_besitzer());
diff --git a/gui/gui_convoiinfo.cc b/gui/gui_convoiinfo.cc
index d2d175fde97..1a6b240269f 100644
--- a/gui/gui_convoiinfo.cc
+++ b/gui/gui_convoiinfo.cc
@@ -44,9 +44,9 @@ void gui_convoiinfo_t::infowin_event(const event_t *ev)
 	if(cnv.is_bound()) {
 		if(IS_LEFTRELEASE(ev)) {
 			if(cnv->in_depot()) {
-				grund_t *gr = cnv->gib_welt()->lookup(cnv->gib_vehikel(0)->gib_pos());
+				grund_t *gr = cnv->get_welt()->lookup(cnv->gib_vehikel(0)->gib_pos());
 				if(gr==NULL  ||  gr->gib_depot()==NULL) {
-					gr = cnv->gib_welt()->lookup(cnv->get_home_depot());
+					gr = cnv->get_welt()->lookup(cnv->get_home_depot());
 				}
 				gr->gib_depot()->zeige_info();
 			}
@@ -55,7 +55,7 @@ void gui_convoiinfo_t::infowin_event(const event_t *ev)
 			}
 		}
 		else if(IS_RIGHTRELEASE(ev)) {
-			cnv->gib_welt()->setze_ij_off(cnv->gib_vehikel(0)->gib_pos());
+			cnv->get_welt()->setze_ij_off(cnv->gib_vehikel(0)->gib_pos());
 		}
 	}
 }
diff --git a/gui/halt_list_stats.cc b/gui/halt_list_stats.cc
index d589b2e456a..43de4bca6d0 100644
--- a/gui/halt_list_stats.cc
+++ b/gui/halt_list_stats.cc
@@ -38,7 +38,7 @@ void halt_list_stats_t::infowin_event(const event_t *ev)
 		}
 	}
 	if(IS_RIGHTRELEASE(ev)) {
-		halt->gib_welt()->setze_ij_off(halt->gib_basis_pos3d());
+		halt->get_welt()->setze_ij_off(halt->gib_basis_pos3d());
 	}
 }
 
diff --git a/gui/karte.h b/gui/karte.h
index a0f9b49c8a8..ae6c7cc3d9c 100644
--- a/gui/karte.h
+++ b/gui/karte.h
@@ -103,7 +103,7 @@ class reliefkarte_t : public gui_komponente_t
 
 	~reliefkarte_t();
 
-	karte_t * gib_welt() const {return welt;}
+	karte_t * get_welt() const {return welt;}
 
 	void setze_welt(karte_t *welt);
 
diff --git a/gui/map_frame.cc b/gui/map_frame.cc
index 9e9515a5a42..fd93b5e7772 100644
--- a/gui/map_frame.cc
+++ b/gui/map_frame.cc
@@ -291,7 +291,7 @@ void map_frame_t::infowin_event(const event_t *ev)
 	// we track this here, and adjust size.
 	if(IS_RIGHTCLICK(ev)) {
 		is_dragging = false;
-		reliefkarte_t::gib_karte()->gib_welt()->set_scroll_lock(false);
+		reliefkarte_t::gib_karte()->get_welt()->set_scroll_lock(false);
 	}
 
 	if(IS_RIGHTRELEASE(ev)) {
@@ -299,7 +299,7 @@ void map_frame_t::infowin_event(const event_t *ev)
 			resize( koord(0,0) );
 		}
 		is_dragging = false;
-		reliefkarte_t::gib_karte()->gib_welt()->set_scroll_lock(false);
+		reliefkarte_t::gib_karte()->get_welt()->set_scroll_lock(false);
 	}
 
 	if(reliefkarte_t::gib_karte()->getroffen(ev->mx,ev->my)  &&  IS_RIGHTDRAG(ev)) {
@@ -310,7 +310,7 @@ void map_frame_t::infowin_event(const event_t *ev)
 		y += (ev->my - ev->cy)*2;
 
 		is_dragging = true;
-		reliefkarte_t::gib_karte()->gib_welt()->set_scroll_lock(true);
+		reliefkarte_t::gib_karte()->get_welt()->set_scroll_lock(true);
 
 		scrolly.setze_scroll_position(  max(0, x),  max(0, y) );
 
@@ -345,7 +345,7 @@ DBG_MESSAGE("map_frame_t::setze_fenstergroesse()","gr.x=%i, gr.y=%i",size.x,size
  */
 void map_frame_t::resize(const koord delta)
 {
-	karte_t *welt=reliefkarte_t::gib_karte()->gib_welt();
+	karte_t *welt=reliefkarte_t::gib_karte()->get_welt();
 
 	koord groesse = gib_fenstergroesse()+delta;
 
@@ -422,7 +422,7 @@ void map_frame_t::zeichnen(koord pos, koord gr)
 	screenpos = pos;
 
 	// first: check if cursor within map screen size
-	karte_t *welt=reliefkarte_t::gib_karte()->gib_welt();
+	karte_t *welt=reliefkarte_t::gib_karte()->get_welt();
 	koord ij = welt->gib_ij_off();
 	if(welt->ist_in_kartengrenzen(ij)) {
 		reliefkarte_t::gib_karte()->karte_to_screen(ij);
diff --git a/gui/money_frame.cc b/gui/money_frame.cc
index 7c01ae103dd..935fd4f8bcd 100644
--- a/gui/money_frame.cc
+++ b/gui/money_frame.cc
@@ -115,10 +115,10 @@ money_frame_t::money_frame_t(spieler_t *sp)
     maintenance_label("This Month",COL_WHITE, gui_label_t::right),
     maintenance_money(NULL, COL_RED, gui_label_t::money),
     warn("", COL_RED),
-	headquarter_view(sp->gib_welt(), koord3d::invalid),
+	headquarter_view(sp->get_welt(), koord3d::invalid),
 	old_hq(koord::invalid)
 {
-	if(sp->gib_welt()->gib_spieler(0)!=sp) {
+	if(sp->get_welt()->gib_spieler(0)!=sp) {
 		sprintf(money_frame_title,translator::translate("Finances of %s"),translator::translate(sp->gib_name()) );
 		setze_name(money_frame_title);
 	}
@@ -132,7 +132,7 @@ money_frame_t::money_frame_t(spieler_t *sp)
 	chart.setze_pos(koord(1,1));
 	chart.setze_groesse(koord(443,120));
 	chart.set_dimension(MAX_HISTORY_YEARS, 10000);
-	chart.set_seed(sp->gib_welt()->get_last_year());
+	chart.set_seed(sp->get_welt()->get_last_year());
 	chart.set_background(MN_GREY1);
 	for (int i = 0; i<MAX_COST; i++) {
 		chart.add_curve(cost_type_color[i], sp->get_finance_history_year(), MAX_COST, i, 12, (i < 10) ||  i==COST_POWERLINES ? MONEY: STANDARD, false, false);
@@ -357,7 +357,7 @@ void money_frame_t::zeichnen(koord pos, koord gr)
 	warn.setze_text(str_buf[15]);
 
 	if(sp->get_headquarter_pos()!=old_hq) {
-		headquarter_view.set_location( sp->gib_welt()->lookup_kartenboden(sp->get_headquarter_pos())->gib_pos() );
+		headquarter_view.set_location( sp->get_welt()->lookup_kartenboden(sp->get_headquarter_pos())->gib_pos() );
 		headquarter.setze_text( "upgrade HQ" );
 		if(sp->get_headquarter_level()==hausbauer_t::headquarter.count()) {
 			headquarter.disable();
@@ -378,7 +378,7 @@ void money_frame_t::zeichnen(koord pos, koord gr)
 	}
 
 	// Hajo: Money is counted in credit cents (100 cents = 1 Cr)
-	money_to_string(str_buf[16], (sp->add_maintenance(0)<<((sint64)sp->gib_welt()->ticks_bits_per_tag-18l))/100);
+	money_to_string(str_buf[16], (sp->add_maintenance(0)<<((sint64)sp->get_welt()->ticks_bits_per_tag-18l))/100);
 	maintenance_money.setze_text(str_buf[16]);
 	maintenance_money.set_color(sp->add_maintenance(0)>=0?MONEY_PLUS:MONEY_MINUS);
 
@@ -388,7 +388,7 @@ void money_frame_t::zeichnen(koord pos, koord gr)
 	}
 
 	// Hajo: update chart seed
-	chart.set_seed(sp->gib_welt()->get_last_year());
+	chart.set_seed(sp->get_welt()->get_last_year());
 
 	gui_frame_t::zeichnen(pos, gr);
 }
@@ -396,7 +396,7 @@ void money_frame_t::zeichnen(koord pos, koord gr)
 bool money_frame_t::action_triggered(gui_komponente_t *komp,value_t /* */)
 {
 	if(komp==&headquarter) {
-		sp->gib_welt()->setze_maus_funktion(wkz_headquarter, skinverwaltung_t::undoc_zeiger->gib_bild_nr(0), karte_t::Z_PLAN, SFX_JACKHAMMER, SFX_FAILURE);
+		sp->get_welt()->setze_maus_funktion(wkz_headquarter, skinverwaltung_t::undoc_zeiger->gib_bild_nr(0), karte_t::Z_PLAN, SFX_JACKHAMMER, SFX_FAILURE);
 		return true;
 	}
 
diff --git a/gui/schedule_list.cc b/gui/schedule_list.cc
index 2cf64dd666b..07a36f424b1 100644
--- a/gui/schedule_list.cc
+++ b/gui/schedule_list.cc
@@ -195,7 +195,7 @@ bool schedule_list_gui_t::action_triggered(gui_komponente_t *komp,value_t /* */)
 			build_line_list( tabs.get_active_tab_index() );
 		}
 		else {
-			create_win(-1, -1, 120, new nachrichtenfenster_t(sp->gib_welt(), translator::translate("Cannot create generic line!\nSelect line type by\nusing filter tabs.")), w_autodelete);
+			create_win(-1, -1, 120, new nachrichtenfenster_t(sp->get_welt(), translator::translate("Cannot create generic line!\nSelect line type by\nusing filter tabs.")), w_autodelete);
 		}
 	}
 	else if (komp == &bt_delete_line) {
@@ -391,7 +391,7 @@ void schedule_list_gui_t::update_lineinfo(linehandle_t new_line)
 		slist_tpl<koord> tmp; // stores koords of stops that are allready displayed
 		for(i=0; i<new_line->get_fahrplan()->maxi(); i++) {
 			const koord fahrplan_koord = new_line->get_fahrplan()->eintrag[i].pos.gib_2d();
-			halthandle_t halt = haltestelle_t::gib_halt(sp->gib_welt(), fahrplan_koord);
+			halthandle_t halt = haltestelle_t::gib_halt(sp->get_welt(), fahrplan_koord);
 			if (halt.is_bound()) {
 				// only add a haltestelle to the list, if it is not in the list allready
 				if (!tmp.contains(fahrplan_koord)) {
diff --git a/gui/stadt_info.cc b/gui/stadt_info.cc
index 9f9094e621f..be5e8e0ab83 100644
--- a/gui/stadt_info.cc
+++ b/gui/stadt_info.cc
@@ -48,7 +48,7 @@ stadt_info_t::stadt_info_t(stadt_t* stadt_) :
 	chart.setze_pos(koord(1,1));
 	chart.setze_groesse(koord(360,120));
 	chart.set_dimension(MAX_CITY_HISTORY_YEARS, 10000);
-	chart.set_seed(stadt->gib_welt()->get_last_year());
+	chart.set_seed(stadt->get_welt()->get_last_year());
 	chart.set_background(MN_GREY1);
 	int i;
 	for (i = 0; i<MAX_CITY_HISTORY; i++) {
@@ -90,7 +90,7 @@ void
 stadt_info_t::zeichnen(koord pos, koord gr)
 {
 	// Hajo: update chart seed
-	chart.set_seed(stadt->gib_welt()->get_last_year());
+	chart.set_seed(stadt->get_welt()->get_last_year());
 
 	gui_frame_t::zeichnen(pos, gr);
 
diff --git a/gui/thing_info.cc b/gui/thing_info.cc
index 7f6fbc23e2c..a5fa8fb4290 100644
--- a/gui/thing_info.cc
+++ b/gui/thing_info.cc
@@ -24,7 +24,7 @@ cbuffer_t ding_infowin_t::buf (8192);
 
 ding_infowin_t::ding_infowin_t(const ding_t* ding_) :
 	gui_frame_t("", ding_->gib_besitzer()),
-	view(ding_->World(), koord3d::invalid),
+	view(ding_->get_welt(), koord3d::invalid),
 	ding(ding_)
 {
 	setze_opaque(true);
diff --git a/simcity.cc b/simcity.cc
index 454905d5301..b544311a082 100644
--- a/simcity.cc
+++ b/simcity.cc
@@ -893,7 +893,7 @@ stadt_t::stadt_t(spieler_t* sp, koord pos, int citizens) :
 	pax_ziele_neu(128, 128),
 	arbeiterziele(4)
 {
-	welt = sp->gib_welt();
+	welt = sp->get_welt();
 	assert(welt->ist_in_kartengrenzen(pos));
 
 	step_count = 0;
diff --git a/simcity.h b/simcity.h
index bc7ca1349a0..3b88684d365 100644
--- a/simcity.h
+++ b/simcity.h
@@ -177,7 +177,7 @@ class stadt_t {
 	stadt_info_t *gib_stadt_info();
 
 	// just needed by stadt_info.cc
-	static inline karte_t* gib_welt() { return welt; }
+	static inline karte_t* get_welt() { return welt; }
 
 	/* end of histroy related thingies */
 private:
diff --git a/simconvoi.cc b/simconvoi.cc
index 680d85f9dfc..4451bb749f2 100644
--- a/simconvoi.cc
+++ b/simconvoi.cc
@@ -152,7 +152,7 @@ convoi_t::convoi_t(karte_t* wl, loadsave_t* file) : fahr(max_vehicle, NULL)
 convoi_t::convoi_t(spieler_t* sp) : fahr(max_vehicle, NULL)
 {
 	self = convoihandle_t(this);
-	init(sp->gib_welt(), sp);
+	init(sp->get_welt(), sp);
 	setze_name( "Unnamed" );
 	welt->add_convoi( self );
 	init_financial_history();
diff --git a/simconvoi.h b/simconvoi.h
index 680cff302cf..89b728c6f0e 100644
--- a/simconvoi.h
+++ b/simconvoi.h
@@ -427,7 +427,7 @@ class convoi_t : public sync_steppable
 	* @return Current map.
 	* @author Hj. Malthaner
 	*/
-	karte_t* gib_welt() { return welt; }
+	karte_t* get_welt() { return welt; }
 
 	/**
 	* Gibt Namen des Convois zurück.
diff --git a/simdings.h b/simdings.h
index 1e52dc60818..4966b853d03 100644
--- a/simdings.h
+++ b/simdings.h
@@ -208,7 +208,7 @@ class ding_t
 	 */
 	ding_t(karte_t *welt, koord3d pos);
 
-	karte_t* World() const { return welt; }
+	karte_t* get_welt() const { return welt; }
 
 	/**
 	 * Der Destruktor schließt alle Beobachtungsfenster für dieses Objekt.
diff --git a/simfab.cc b/simfab.cc
index d98c536865a..6e5a4691584 100644
--- a/simfab.cc
+++ b/simfab.cc
@@ -128,7 +128,7 @@ fabrik_t::fabrik_t(karte_t* wl, loadsave_t* file)
 
 
 fabrik_t::fabrik_t(koord3d pos_, spieler_t* spieler, const fabrik_besch_t* fabesch) :
-	welt(spieler->gib_welt()),
+	welt(spieler->get_welt()),
 	besch(fabesch),
 	pos(pos_)
 {
diff --git a/simhalt.h b/simhalt.h
index cdec6239317..f622ca27b74 100644
--- a/simhalt.h
+++ b/simhalt.h
@@ -346,7 +346,7 @@ class haltestelle_t
 	 */
 	void neuer_monat();
 
-	karte_t* gib_welt() const { return welt; }
+	karte_t* get_welt() const { return welt; }
 
 	/**
 	 * Kann die Ware nicht zum Ziel geroutet werden (keine Route), dann werden
diff --git a/simline.cc b/simline.cc
index f6f2e02f39e..f93d641c6d2 100644
--- a/simline.cc
+++ b/simline.cc
@@ -16,7 +16,7 @@ karte_t *simline_t::welt=NULL;
 
 simline_t::simline_t(simlinemgmt_t* simlinemgmt, fahrplan_t* fpl)
 {
-	welt = simlinemgmt->World();
+	welt = simlinemgmt->get_welt();
 	self = linehandle_t(this);
 	init_financial_history();
 	const int i = simlinemgmt->get_unique_line_id();
diff --git a/simlinemgmt.h b/simlinemgmt.h
index f33c4fb08b6..6733bdcd4ce 100644
--- a/simlinemgmt.h
+++ b/simlinemgmt.h
@@ -93,7 +93,7 @@ class simlinemgmt_t
 	 */
 	void get_lines(int type, vector_tpl<linehandle_t>* lines) const;
 
-	karte_t* World() const { return welt; }
+	karte_t* get_welt() const { return welt; }
 
  private:
 	static uint8 used_ids[8192];
diff --git a/simplan.cc b/simplan.cc
index b12924f9f74..36306a710ea 100644
--- a/simplan.cc
+++ b/simplan.cc
@@ -400,7 +400,7 @@ planquadrat_t::display_overlay(const sint16 xpos, const sint16 ypos, const sint1
 			// plot player outline colours - we always plot in order of players so that the order of the stations in halt_list
 			// doesn't affect the colour displayed [since blend(col1,blend(col2,screen)) != blend(col2,blend(col1,screen))]
 			for(int spieler_count = 0; spieler_count<MAX_PLAYER_COUNT; spieler_count++) {
-				spieler_t *display_player = gr->gib_welt()->gib_spieler(spieler_count);
+				spieler_t *display_player = gr->get_welt()->gib_spieler(spieler_count);
 				const PLAYER_COLOR_VAL transparent = PLAYER_FLAG | OUTLINE_FLAG | (display_player->get_player_color1() * 4 + 4);
 				for(int halt_count = 0; halt_count < halt_list_count; halt_count++) {
 					if(halt_list[halt_count]->gib_besitzer() == display_player) {
diff --git a/simplay.h b/simplay.h
index 3b27c1f3b4e..541db73f76d 100644
--- a/simplay.h
+++ b/simplay.h
@@ -463,7 +463,7 @@ class spieler_t
 	* Returns the world the player is in
 	* @author hsiegeln
 	*/
-	karte_t *gib_welt() { return welt; }
+	karte_t *get_welt() { return welt; }
 
 	/**
 	* Calculates the finance history for player
diff --git a/simvehikel.cc b/simvehikel.cc
index a754d98f634..b04938aa8ac 100644
--- a/simvehikel.cc
+++ b/simvehikel.cc
@@ -636,7 +636,7 @@ void vehikel_t::neue_fahrt(uint16 start_route_index, bool recalc)
 
 
 vehikel_t::vehikel_t(koord3d pos, const vehikel_besch_t* besch, spieler_t* sp) :
-	vehikel_basis_t(sp->gib_welt(), pos)
+	vehikel_basis_t(sp->get_welt(), pos)
 {
 	this->besch = besch;