79 lines
1.9 KiB
C++
79 lines
1.9 KiB
C++
// weather.cxx -- routines to model weather
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//
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// Written by Curtis Olson, started July 1997.
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//
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// Copyright (C) 1997 Curtis L. Olson - curt@me.umn.edu
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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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// $Id$
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#ifdef HAVE_WINDOWS_H
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# include <windows.h>
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#endif
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#include <GL/glut.h>
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#include <XGL/xgl.h>
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#include <math.h>
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#include <Aircraft/aircraft.hxx>
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#include <Debug/logstream.hxx>
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#include <Math/fg_random.h>
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#include <Weather/weather.hxx>
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// This is a record containing current weather info
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FGWeather current_weather;
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FGWeather::FGWeather() {
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}
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FGWeather::~FGWeather() {
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}
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// Initialize the weather modeling subsystem
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void FGWeather::Init( ) {
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FG_LOG( FG_GENERAL, FG_INFO, "Initializing weather subsystem");
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// Configure some wind
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// FG_V_north_airmass = 15; // ft/s =~ 10mph
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// set_visibility( 45000.0 ); // in meters
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set_visibility( 32000.0 ); // about 20 miles (in meters)
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}
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// Update the weather parameters for the current position
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void FGWeather::Update( void ) {
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FGInterface *f;
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f = current_aircraft.fdm_state;
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// Add some random turbulence
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// f->set_U_gust( fg_random() * 5.0 - 2.5 );
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// f->set_V_gust( fg_random() * 5.0 - 2.5 );
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// f->set_W_gust( fg_random() * 5.0 - 2.5 );
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}
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