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//=============================================================================
//
// Glagen : a planet sized landscape generator
// Copyright (C) 2002 Julien Guertault, Hugues Hiegel, Meng-Tih Lam
//
// This program 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; either version 2
// of the License, or (at your option) any later version.
//
// This program 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. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
//=============================================================================
//
// Glagen : GPL LAndscape GENerator
//
// dot_gl.cc for Glagen : made by Zavie (Julien Guertault)
//
// www.glagen.org
//
//=============================================================================
#ifndef DARWIN
# include <GL/gl.h>
# include <GL/glu.h>
#else
# include <gl.h>
# include <glu.h>
#endif
#include "data_glagen.hh"
#include "dot.hh"
//
// Call the appropriate OpenGl functions for the dot
//
void Dot :: Display (const unsigned int id)
{
surface_t *surface;
float adjust;
if (glagen.display_planet)
{
if (NULL == _property[id])
{
adjust = 0;
glColor3f ((1 + _x) / 2, (1 + _y) / 2, (1 + _z) / 2);
}
else
{
surface = static_cast <surface_t *> (_property[id]->data);
if (NULL == surface)
{
adjust = 0;
glColor3f ((1 + _x) / 2, (1 + _y) / 2, (1 + _z) / 2);
}
else
{
adjust = surface->height;
glColor4f (surface->red,
surface->green,
surface->blue,
surface->alpha);
}
}
}
else
{
adjust = 0;
glColor3f ((1 + _x) / 2, (1 + _y) / 2, (1 + _z) / 2);
}
glNormal3f(_normal.X (), _normal.Y (), _normal.Z ());
glVertex3f ((glagen.size + adjust) * _x,
(glagen.size + adjust) * _y,
(glagen.size + adjust) * _z);
}
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