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Added a <solve-weight> subtag of the approach/cruise parameters that can
[flightgear.git] / src / AIModel / AIAircraft.hxx
1 // FGAIAircraft - AIBase derived class creates an AI aircraft
2 //
3 // Written by David Culp, started October 2003.
4 //
5 // Copyright (C) 2003  David P. Culp - davidculp2@comcast.net
6 //
7 // This program is free software; you can redistribute it and/or
8 // modify it under the terms of the GNU General Public License as
9 // published by the Free Software Foundation; either version 2 of the
10 // License, or (at your option) any later version.
11 //
12 // This program is distributed in the hope that it will be useful, but
13 // WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15 // General Public License for more details.
16 //
17 // You should have received a copy of the GNU General Public License
18 // along with this program; if not, write to the Free Software
19 // Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20
21 #ifndef _FG_AIAircraft_HXX
22 #define _FG_AIAircraft_HXX
23
24 #include "AIManager.hxx"
25 #include "AIBase.hxx"
26
27 #include <string>
28 SG_USING_STD(string);
29
30
31 class FGAIAircraft : public FGAIBase {
32
33 private:
34
35         typedef struct {
36             double accel;
37             double decel;
38             double climb_rate;
39             double descent_rate;
40             double takeoff_speed;
41             double climb_speed;
42             double cruise_speed;
43             double descent_speed;
44             double land_speed;
45         } PERF_STRUCT;
46         
47 public:
48
49         enum aircraft_e {LIGHT=0, WW2_FIGHTER, JET_TRANSPORT, JET_FIGHTER};
50         static const PERF_STRUCT settings[];
51         
52         FGAIAircraft();
53         ~FGAIAircraft();
54         
55         bool init();
56         virtual void bind();
57         virtual void unbind();
58         void update(double dt);
59
60         void SetPerformance(const PERF_STRUCT *ps);
61         void AccelTo(double speed);
62         void PitchTo(double angle);
63         void RollTo(double angle);
64         void YawTo(double angle);
65         void ClimbTo(double altitude);
66         void TurnTo(double heading);
67
68 protected:
69         static FGAIAircraft *_self;
70         
71 private:
72
73         bool hdg_lock;
74         bool alt_lock;
75
76         double dt; 
77
78         const PERF_STRUCT *performance;
79
80         void Run(double dt);
81         double sign(double x);  
82
83         static bool _getGearDown();
84 };
85
86 inline bool FGAIAircraft::_getGearDown() {
87     return ((fgGetFloat("/position/altitude-agl-ft") < 150.0)
88              && (fgGetFloat("/orientation/pitch-deg") < 0.0)
89              && (fgGetFloat("/velocities/airspeed-kt")
90                    < _self->performance->land_speed*1.5));
91 }
92
93
94 #endif  // _FG_AIAircraft_HXX