1 // net_fdm.hxx -- defines a common net I/O interface to the flight
4 // Written by Curtis Olson - http://www.flightgear.org/~curt
5 // Started September 2001.
7 // This file is in the Public Domain, and comes with no warranty.
17 # error This library requires C++
20 #include <time.h> // time_t
22 const int FG_NET_FDM_VERSION = 20;
25 // Define a structure containing the top level flight dynamics model
32 int version; // increment when data values change
33 int pad; // keep doubles 64-bit aligned for some
34 // hardware platforms, such as the Sun
35 // SPARC, which don't like misaligned
45 double longitude; // geodetic (radians)
46 double latitude; // geodetic (radians)
47 double altitude; // above sea level (meters)
48 float agl; // above ground level (meters)
49 float phi; // roll (radians)
50 float theta; // pitch (radians)
51 float psi; // yaw or true heading (radians)
52 float alpha; // angle of attack (radians)
53 float beta; // side slip angle (radians)
56 float phidot; // roll rate (radians/sec)
57 float thetadot; // pitch rate (radians/sec)
58 float psidot; // yaw rate (radians/sec)
59 float vcas; // calibrated airspeed
60 float climb_rate; // feet per second
61 float v_north; // north velocity in local/body frame, fps
62 float v_east; // east velocity in local/body frame, fps
63 float v_down; // down/vertical velocity in local/body frame, fps
64 float v_wind_body_north; // north velocity in local/body frame
65 // relative to local airmass, fps
66 float v_wind_body_east; // east velocity in local/body frame
67 // relative to local airmass, fps
68 float v_wind_body_down; // down/vertical velocity in local/body
69 // frame relative to local airmass, fps
72 float A_X_pilot; // X accel in body frame ft/sec^2
73 float A_Y_pilot; // Y accel in body frame ft/sec^2
74 float A_Z_pilot; // Z accel in body frame ft/sec^2
77 float stall_warning; // 0.0 - 1.0 indicating the amount of stall
78 float slip_deg; // slip ball deflection
83 int num_engines; // Number of valid engines
84 int eng_state[FG_MAX_ENGINES]; // Engine state (off, cranking, running)
85 float rpm[FG_MAX_ENGINES]; // Engine RPM rev/min
86 float fuel_flow[FG_MAX_ENGINES]; // Fuel flow gallons/hr
87 float egt[FG_MAX_ENGINES]; // Exhuast gas temp deg F
88 float cht[FG_MAX_ENGINES]; // Cylinder head temp deg F
89 float mp_osi[FG_MAX_ENGINES]; // Manifold pressure
90 float tit[FG_MAX_ENGINES]; // Turbine Inlet Temperature
91 float oil_temp[FG_MAX_ENGINES]; // Oil temp deg F
92 float oil_px[FG_MAX_ENGINES]; // Oil pressure psi
95 int num_tanks; // Max number of fuel tanks
96 float fuel_quantity[FG_MAX_TANKS];
100 bool wow[FG_MAX_WHEELS];
101 float gear_pos[FG_MAX_WHEELS];
102 float gear_steer[FG_MAX_WHEELS];
103 float gear_compression[FG_MAX_WHEELS];
106 time_t cur_time; // current unix time
107 long int warp; // offset in seconds to unix time
108 float visibility; // visibility in meters (for env. effects)
110 // Control surface positions (normalized values)
112 float elevator_trim_tab;
124 #endif // _NET_FDM_HXX