87 lines
3.3 KiB
C++
87 lines
3.3 KiB
C++
// FGAIPlane - abstract base class for an AI plane
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//
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// Written by David Luff, started 2002.
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//
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// Copyright (C) 2002 David C. Luff - david.luff@nottingham.ac.uk
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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/*****************************************************************
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*
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* WARNING - Curt has some ideas about AI traffic so anything in here
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* may get rewritten or scrapped. Contact Curt curt@flightgear.org
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* before spending any time or effort on this code!!!
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*
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******************************************************************/
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#ifndef _FG_AI_PLANE_HXX
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#define _FG_AI_PLANE_HXX
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#include <Model/model.hxx>
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#include <plib/sg.h>
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#include <plib/ssg.h>
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#include <simgear/math/point3d.hxx>
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#include "AIEntity.hxx"
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/*****************************************************************
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*
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* FGAIPlane - this class is derived from FGAIEntity and adds the
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* practical requirement for an AI plane - the ability to send radio
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* communication, and simple performance details for the actual AI
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* implementation to use. The AI implementation is expected to be
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* in derived classes - this class does nothing useful on its own.
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*
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******************************************************************/
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class FGAIPlane : public FGAIEntity {
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public:
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virtual ~FGAIPlane();
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// Run the internal calculations
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virtual void Update(double dt);
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protected:
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double mag_hdg; // degrees - the heading that the physical aircraft is *pointing*
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double track; // track that the physical aircraft is *following* - degrees relative to *true* north
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double crab; // Difference between heading and track due to wind.
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double mag_var; // degrees
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double IAS; // Indicated airspeed in knots
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double vel; // velocity along track in knots
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double vel_si; // velocity along track in m/s
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double slope; // Actual slope that the plane is flying (degrees) - +ve is uphill
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double AoA; // degrees - difference between slope and pitch
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// We'll assume that the plane doesn't yaw or slip - the track/heading difference is to allow for wind
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double freq; // The comm frequency that we're operating on
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// We need some way for this class to display its radio transmissions if on the
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// same frequency and in the vicinity of the user's aircraft
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// This may need to be done independently of ATC eg CTAF
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// Make radio transmission - this simply sends the transmission for physical rendering if the users
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// aircraft is on the same frequency and in range. It is up to the derived classes to let ATC know
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// what is going on.
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void Transmit(string msg);
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void Bank(double angle);
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void LevelWings(void);
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};
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#endif // _FG_AI_PLANE_HXX
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