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Location: cpp/openttd-patchpack/source/src/aircraft.h - annotation
r17167:68f47a8db1b5
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(svn r21916) -Fix [FS#4442]: the minimum speed needed for (realistic) acceleration to work properly can sometimes be more than the (temporary) maximum speed causing Clamp to "fail". Make sure that the minimum speed always overrules the maximum speed
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/*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file aircraft.h Base for aircraft. */
#ifndef AIRCRAFT_H
#define AIRCRAFT_H
#include "station_map.h"
#include "vehicle_base.h"
struct Aircraft;
/** An aircraft can be one of those types. */
enum AircraftSubType {
AIR_HELICOPTER = 0, ///< an helicopter
AIR_AIRCRAFT = 2, ///< an airplane
AIR_SHADOW = 4, ///< shadow of the aircraft
AIR_ROTOR = 6 ///< rotor of an helicopter
};
void HandleAircraftEnterHangar(Aircraft *v);
void GetAircraftSpriteSize(EngineID engine, uint &width, uint &height);
void UpdateAirplanesOnNewStation(const Station *st);
void UpdateAircraftCache(Aircraft *v);
void AircraftLeaveHangar(Aircraft *v);
void AircraftNextAirportPos_and_Order(Aircraft *v);
void SetAircraftPosition(Aircraft *v, int x, int y, int z);
byte GetAircraftFlyingAltitude(const Aircraft *v);
/**
* Aircraft, helicopters, rotors and their shadows belong to this class.
*/
struct Aircraft : public SpecializedVehicle<Aircraft, VEH_AIRCRAFT> {
uint16 crashed_counter; ///< Timer for handling crash animations.
byte pos; ///< Next desired position of the aircraft.
byte previous_pos; ///< Previous desired position of the aircraft.
StationID targetairport; ///< Airport to go to next.
byte state; ///< State of the airport. @see AirportMovementStates
DirectionByte last_direction;
byte number_consecutive_turns; ///< Protection to prevent the aircraft of making a lot of turns in order to reach a specific point.
byte turn_counter; ///< Ticks between each turn to prevent > 45 degree turns.
/** We don't want GCC to zero our struct! It already is zeroed and has an index! */
Aircraft() : SpecializedVehicleBase() {}
/** We want to 'destruct' the right class. */
virtual ~Aircraft() { this->PreDestructor(); }
const char *GetTypeString() const { return "aircraft"; }
void MarkDirty();
void UpdateDeltaXY(Direction direction);
ExpensesType GetExpenseType(bool income) const { return income ? EXPENSES_AIRCRAFT_INC : EXPENSES_AIRCRAFT_RUN; }
bool IsPrimaryVehicle() const { return this->IsNormalAircraft(); }
SpriteID GetImage(Direction direction) const;
int GetDisplaySpeed() const { return this->cur_speed; }
int GetDisplayMaxSpeed() const { return this->vcache.cached_max_speed; }
int GetSpeedOldUnits() const { return this->vcache.cached_max_speed * 10 / 128; }
Money GetRunningCost() const;
bool IsInDepot() const { return (this->vehstatus & VS_HIDDEN) != 0 && IsHangarTile(this->tile); }
bool Tick();
void OnNewDay();
uint Crash(bool flooded = false);
TileIndex GetOrderStationLocation(StationID station);
bool FindClosestDepot(TileIndex *location, DestinationID *destination, bool *reverse);
/**
* Check if the aircraft type is a normal flying device; eg
* not a rotor or a shadow
* @return Returns true if the aircraft is a helicopter/airplane and
* false if it is a shadow or a rotor
*/
FORCEINLINE bool IsNormalAircraft() const
{
/* To be fully correct the commented out functionality is the proper one,
* but since value can only be 0 or 2, it is sufficient to only check <= 2
* return (this->subtype == AIR_HELICOPTER) || (this->subtype == AIR_AIRCRAFT); */
return this->subtype <= AIR_AIRCRAFT;
}
};
/**
* Macro for iterating over all aircrafts.
*/
#define FOR_ALL_AIRCRAFT(var) FOR_ALL_VEHICLES_OF_TYPE(Aircraft, var)
SpriteID GetRotorImage(const Aircraft *v);
Station *GetTargetAirportIfValid(const Aircraft *v);
#endif /* AIRCRAFT_H */
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