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OS/2 Shareware BBS: 10 Tools
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10-Tools.zip
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viscobv6.zip
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vac22os2
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ibmcobol
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samples
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toolkit
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opengl
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auxdemo
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planetup.c
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C/C++ Source or Header
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1996-11-19
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4KB
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123 lines
/*
* (c) Copyright 1993, Silicon Graphics, Inc.
* ALL RIGHTS RESERVED
* Permission to use, copy, modify, and distribute this software for
* any purpose and without fee is hereby granted, provided that the above
* copyright notice appear in all copies and that both the copyright notice
* and this permission notice appear in supporting documentation, and that
* the name of Silicon Graphics, Inc. not be used in advertising
* or publicity pertaining to distribution of the software without specific,
* written prior permission.
*
* THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS"
* AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR
* FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
* GRAPHICS, INC. BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT,
* SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY
* KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION,
* LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF
* THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC. HAS BEEN
* ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
* POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE.
*
* US Government Users Restricted Rights
* Use, duplication, or disclosure by the Government is subject to
* restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
* (c)(1)(ii) of the Rights in Technical Data and Computer Software
* clause at DFARS 252.227-7013 and/or in similar or successor
* clauses in the FAR or the DOD or NASA FAR Supplement.
* Unpublished-- rights reserved under the copyright laws of the
* United States. Contractor/manufacturer is Silicon Graphics,
* Inc., 2011 N. Shoreline Blvd., Mountain View, CA 94039-7311.
*
* OpenGL(TM) is a trademark of Silicon Graphics, Inc.
*/
/*
* planetup.c
* The planets (from planet.c) have been rotated so their
* polar regions are north/south.
* Interaction: pressing the left, right, up, and down
* arrow keys alters the rotation of the planet around the sun.
*/
#include <GL/gl.h>
#include <GL/glu.h>
#include "aux.h"
static int year = 0, day = 0;
void dayAdd (void)
{
day = (day + 10) % 360;
}
void daySubtract (void)
{
day = (day - 10) % 360;
}
void yearAdd (void)
{
year = (year + 5) % 360;
}
void yearSubtract (void)
{
year = (year - 5) % 360;
}
void display(void)
{
glClear(GL_COLOR_BUFFER_BIT);
glColor3f (1.0, 1.0, 1.0);
glPushMatrix();
/* draw sun */
glPushMatrix();
glRotatef (90.0, 1.0, 0.0, 0.0); /* rotate it upright */
auxWireSphere(1.0);
glPopMatrix();
/* draw smaller planet */
glRotatef ((GLfloat) year, 0.0, 1.0, 0.0);
glTranslatef (2.0, 0.0, 0.0);
glRotatef ((GLfloat) day, 0.0, 1.0, 0.0);
glRotatef (90.0, 1.0, 0.0, 0.0); /* rotate it upright */
auxWireSphere(0.2);
glPopMatrix();
glFlush();
}
void myinit (void) {
glShadeModel (GL_FLAT);
}
void myReshape(int w, int h)
{
glViewport(0, 0, w, h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(60.0, (GLfloat) w/(GLfloat) h, 1.0, 20.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glTranslatef (0.0, 0.0, -5.0);
}
/* Main Loop
* Open window with initial window size, title bar,
* RGBA display mode, and handle input events.
*/
int main(int argc, char** argv)
{
auxInitDisplayMode (AUX_SINGLE | AUX_RGB);
auxInitPosition (0, 0, 500, 500);
auxInitWindow (argv[0]);
myinit ();
auxKeyFunc (AUX_LEFT, yearSubtract);
auxKeyFunc (AUX_RIGHT, yearAdd);
auxKeyFunc (AUX_UP, dayAdd);
auxKeyFunc (AUX_DOWN, daySubtract);
auxReshapeFunc (myReshape);
auxMainLoop(display);
}