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-rw-r--r--src/aircraft.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/aircraft.h b/src/aircraft.h
index 50611803c..671463b69 100644
--- a/src/aircraft.h
+++ b/src/aircraft.h
@@ -119,7 +119,7 @@ struct Aircraft : public Vehicle {
ExpensesType GetExpenseType(bool income) const { return income ? EXPENSES_AIRCRAFT_INC : EXPENSES_AIRCRAFT_RUN; }
WindowClass GetVehicleListWindowClass() const { return WC_AIRCRAFT_LIST; }
bool IsPrimaryVehicle() const { return IsNormalAircraft(this); }
- int GetImage(Direction direction) const;
+ SpriteID GetImage(Direction direction) const;
int GetDisplaySpeed() const { return this->cur_speed * 10 / 16; }
int GetDisplayMaxSpeed() const { return this->max_speed * 10 / 16; }
Money GetRunningCost() const { return AircraftVehInfo(this->engine_type)->running_cost * _price.aircraft_running; }