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aircraft.h
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1 /* $Id: aircraft.h 26866 2014-09-21 06:35:34Z rubidium $ */
2
3 /*
4 * This file is part of OpenTTD.
5 * 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.
6 * 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.
7 * 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/>.
8 */
9
12 #ifndef AIRCRAFT_H
13 #define AIRCRAFT_H
14
15 #include "station_map.h"
16 #include "vehicle_base.h"
17
22 enum AircraftFlyingAltitude {
23 AIRCRAFT_MIN_FLYING_ALTITUDE = 120,
24 AIRCRAFT_MAX_FLYING_ALTITUDE = 360,
25 PLANE_HOLD_MAX_FLYING_ALTITUDE = 150,
26 HELICOPTER_HOLD_MAX_FLYING_ALTITUDE = 184
27 };
28
29 struct Aircraft;
30
32 enum AircraftSubType {
33 AIR_HELICOPTER = 0,
34 AIR_AIRCRAFT = 2,
35 AIR_SHADOW = 4,
36 AIR_ROTOR = 6,
37 };
38
40 enum AirVehicleFlags {
41 VAF_DEST_TOO_FAR = 0,
42
43 /* The next two flags are to prevent stair climbing of the aircraft. The idea is that the aircraft
44 * will ascend or descend multiple flight levels at a time instead of following the contours of the
45 * landscape at a fixed altitude. This only has effect when there are more than 15 height levels. */
46 VAF_IN_MAX_HEIGHT_CORRECTION = 1,
47 VAF_IN_MIN_HEIGHT_CORRECTION = 2,
48 };
49
50 static const int ROTOR_Z_OFFSET = 5;
51
52 void HandleAircraftEnterHangar(Aircraft *v);
53 void GetAircraftSpriteSize(EngineID engine, uint &width, uint &height, int &xoffs, int &yoffs, EngineImageType image_type);
54 void UpdateAirplanesOnNewStation(const Station *st);
55 void UpdateAircraftCache(Aircraft *v, bool update_range = false);
56
57 void AircraftLeaveHangar(Aircraft *v, Direction exit_dir);
58 void AircraftNextAirportPos_and_Order(Aircraft *v);
59 void SetAircraftPosition(Aircraft *v, int x, int y, int z);
60
61 void GetAircraftFlightLevelBounds(const Vehicle *v, int *min, int *max);
62 template <class T>
63 int GetAircraftFlightLevel(T *v, bool takeoff = false);
64
66 struct AircraftCache {
67 uint32 cached_max_range_sqr;
68 uint16 cached_max_range;
69 };
70
74 struct Aircraft FINAL : public SpecializedVehicle<Aircraft, VEH_AIRCRAFT> {
75 uint16 crashed_counter;
76 byte pos;
77 byte previous_pos;
78 StationID targetairport;
79 byte state;
80 DirectionByte last_direction;
81 byte number_consecutive_turns;
82 byte turn_counter;
83 byte flags;
84
85 AircraftCache acache;
86
88 Aircraft() : SpecializedVehicleBase() {}
90 virtual ~Aircraft() { this->PreDestructor(); }
91
92 void MarkDirty();
93 void UpdateDeltaXY(Direction direction);
94 ExpensesType GetExpenseType(bool income) const { return income ? EXPENSES_AIRCRAFT_INC : EXPENSES_AIRCRAFT_RUN; }
95 bool IsPrimaryVehicle() const { return this->IsNormalAircraft(); }
96 SpriteID GetImage(Direction direction, EngineImageType image_type) const;
97 int GetDisplaySpeed() const { return this->cur_speed; }
98 int GetDisplayMaxSpeed() const { return this->vcache.cached_max_speed; }
99 int GetSpeedOldUnits() const { return this->vcache.cached_max_speed * 10 / 128; }
100 int GetCurrentMaxSpeed() const { return this->GetSpeedOldUnits(); }
101 Money GetRunningCost() const;
102
103 bool IsInDepot() const
104 {
105 assert(this->IsPrimaryVehicle());
106 return (this->vehstatus & VS_HIDDEN) != 0 && IsHangarTile(this->tile);
107 }
108
109 bool Tick();
110 void OnNewDay();
111 uint Crash(bool flooded = false);
112 TileIndex GetOrderStationLocation(StationID station);
113 bool FindClosestDepot(TileIndex *location, DestinationID *destination, bool *reverse);
114
121 inline bool IsNormalAircraft() const
122 {
123 /* To be fully correct the commented out functionality is the proper one,
124 * but since value can only be 0 or 2, it is sufficient to only check <= 2
125 * return (this->subtype == AIR_HELICOPTER) || (this->subtype == AIR_AIRCRAFT); */
126 return this->subtype <= AIR_AIRCRAFT;
127 }
128
133 uint16 GetRange() const
134 {
135 return this->acache.cached_max_range;
136 }
137 };
138
142 #define FOR_ALL_AIRCRAFT(var) FOR_ALL_VEHICLES_OF_TYPE(Aircraft, var)
143
144 SpriteID GetRotorImage(const Aircraft *v, EngineImageType image_type);
145
146 Station *GetTargetAirportIfValid(const Aircraft *v);
147
148 #endif /* AIRCRAFT_H */