1 files changed, 21 insertions, 37 deletions

diff --git a/ship_gui.c b/ship_gui.c
index 49006f9bf..90c12eab6 100644
--- a/ship_gui.c
+++ b/ship_gui.c
@@ -138,7 +138,7 @@ static const WindowDesc _ship_refit_desc = {
 	ShipRefitWndProc,
 };
 
-static void ShowShipRefitWindow(Vehicle *v)
+static void ShowShipRefitWindow(const Vehicle* v)
 {
 	Window *w;
 
@@ -287,7 +287,7 @@ static const WindowDesc _ship_details_desc = {
 	ShipDetailsWndProc
 };
 
-static void ShowShipDetailsWindow(Vehicle *v)
+static void ShowShipDetailsWindow(const Vehicle* v)
 {
 	Window *w;
 	VehicleID veh = v->index;
@@ -314,11 +314,11 @@ void CcBuildShip(bool success, TileIndex tile, uint32 p1, uint32 p2)
 
 void CcCloneShip(bool success, uint tile, uint32 p1, uint32 p2)
 {
-	Vehicle *v;
-	if (!success) return;
+	if (success) {
+		const Vehicle* v = GetVehicle(_new_aircraft_id);
 
-	v = GetVehicle(_new_ship_id);
-	ShowShipViewWindow(v);
+		ShowShipViewWindow(v);
+	}
 }
 
 static void NewShipWndProc(Window *w, WindowEvent *e)
@@ -528,9 +528,9 @@ static void ShipViewWndProc(Window *w, WindowEvent *e) {
 	} break;
 
 		case WE_CLICK: {
-			Vehicle *v = GetVehicle(w->window_number);
+			const Vehicle* v = GetVehicle(w->window_number);
 
-			switch(e->click.widget) {
+			switch (e->click.widget) {
 				case 5: /* start stop */
 					DoCommandP(v->tile, v->index, 0, NULL, CMD_START_STOP_SHIP | CMD_MSG(STR_9818_CAN_T_STOP_START_SHIP));
 					break;
@@ -551,8 +551,6 @@ static void ShipViewWndProc(Window *w, WindowEvent *e) {
 					break;
 				case 11: {
 					/* clone vehicle */
-					Vehicle *v;
-					v = GetVehicle(w->window_number);
 					DoCommandP(v->tile, v->index, _ctrl_pressed ? 1 : 0, CcCloneShip, CMD_CLONE_VEHICLE | CMD_MSG(STR_980D_CAN_T_BUILD_SHIP));
 				} break;
 			}
@@ -611,12 +609,11 @@ static const WindowDesc _ship_view_desc = {
 	ShipViewWndProc
 };
 
-void ShowShipViewWindow(Vehicle *v)
+void ShowShipViewWindow(const Vehicle* v)
 {
-	Window *w;
+	Window* w = AllocateWindowDescFront(&_ship_view_desc, v->index);
 
-	w = AllocateWindowDescFront(&_ship_view_desc, v->index);
-	if (w) {
+	if (w != NULL) {
 		w->caption_color = v->owner;
 		AssignWindowViewport(w, 3, 17, 0xE2, 0x54, w->window_number | (1 << 31), 0);
 	}
@@ -745,34 +742,22 @@ static void ShipDepotClick(Window *w, int x, int y)
  * @param *v is the original vehicle to clone
  * @param *w is the window of the depot where the clone is build
  */
-static bool HandleCloneVehClick(Vehicle *v, Window *w)
+static void HandleCloneVehClick(const Vehicle* v, const Window* w)
 {
+	if (v == NULL || v->type != VEH_Ship) return;
 
-	if (!v){
-		return false;
-	}
-
-	if (v->type != VEH_Ship) {
-		// it's not a ship, do nothing
-		return false;
-	}
-
-
-    DoCommandP(w->window_number, v->index, _ctrl_pressed ? 1 : 0,CcCloneShip,CMD_CLONE_VEHICLE | CMD_MSG(STR_980D_CAN_T_BUILD_SHIP));
+	DoCommandP(w->window_number, v->index, _ctrl_pressed ? 1 : 0, CcCloneShip,
+		CMD_CLONE_VEHICLE | CMD_MSG(STR_980D_CAN_T_BUILD_SHIP)
+	);
 
 	ResetObjectToPlace();
-
-	return true;
 }
 
-static void ClonePlaceObj(uint tile, Window *w)
+static void ClonePlaceObj(TileIndex tile, const Window* w)
 {
-	Vehicle *v;
+	Vehicle* v = CheckMouseOverVehicle();
 
-
-	v = CheckMouseOverVehicle();
-	if (v && HandleCloneVehClick(v, w))
-		return;
+	if (v != NULL) HandleCloneVehClick(v, w);
 }
 
 static void ShipDepotWndProc(Window *w, WindowEvent *e) {
@@ -812,7 +797,6 @@ static void ShipDepotWndProc(Window *w, WindowEvent *e) {
 		break;
 
 	case WE_PLACE_OBJ: {
-		//ClonePlaceObj(e->place.tile, w);
 		ClonePlaceObj(w->window_number, w);
 	} break;
 
@@ -823,9 +807,9 @@ static void ShipDepotWndProc(Window *w, WindowEvent *e) {
 
 	// check if a vehicle in a depot was clicked..
 	case WE_MOUSELOOP: {
-		Vehicle *v = _place_clicked_vehicle;
+		const Vehicle* v = _place_clicked_vehicle;
 
-	// since OTTD checks all open depot windows, we will make sure that it triggers the one with a clicked clone button
+		// since OTTD checks all open depot windows, we will make sure that it triggers the one with a clicked clone button
 		if (v != NULL && HASBIT(w->click_state, 8)) {
 			_place_clicked_vehicle = NULL;
 			HandleCloneVehClick(v, w);