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keyboard.c
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keyboard.c
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/*
ssystem 1.6
Copyright (C) 1997-1999 Raul Alonso <[email protected]>
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "ssystem.h"
void Key( unsigned char key, int x, int y )
{
double xx,yy,zz;
switch (key) {
case 27: /* ESC ... bye bye */
sec=(glutGet(GLUT_ELAPSED_TIME)-sec)/1000.0;
#ifdef WIN32
sprintf(sbuf,"\n%.2f frames/sec\n\n",(float)frames/sec);
MessageBox(NULL,sbuf,"Overall Performance", MB_OK);
if (fullscreen) glutLeaveGameMode();
ShowCursor(TRUE);
#else
printf("\n%.2f frames/sec\n\n",(float)frames/sec);
glutSetCursor(GLUT_CURSOR_INHERIT);
#endif
exit(0);
break;
case 'c': /* Toggles camera mode */
cmode=(cmode+1)%4;
switch (cmode) {
case 0:
upx=upz=0.0;
upy=1.0;
eyey=0.0;
break;
case 2: if (currtarget==currsource) {
currsource=(currsource+1)%NUMBODIES;
while (planets[currsource].Type==RING)
currsource=(currsource+1)%NUMBODIES;
}
break;
default: break;
}
break;
case 'p': paused=!paused;
break;
case 'f': smodel=(smodel==GL_FLAT) ? GL_SMOOTH : GL_FLAT;
glShadeModel(smodel);
break;
case 'o': if (fov<179.5) fov+=0.5;
break;
case 'O': if (fov>0.5) fov-=0.5;
break;
case 't': texture=!texture;
break;
case 'r': realtime=!realtime;
break;
case 's': drawstars=!drawstars;
break;
case 'S': sprintf(sbuf,"sshot%d.jpg",frames);
ScreenShot(sbuf);
break;
case 'm': glDeleteLists(Stars,1);
star_mag+=0.1;
InitStars(star_mag,0);
break;
case 'M': glDeleteLists(Stars,1);
star_mag-=0.1;
InitStars(star_mag,0);
break;
case 'n': /* Set camera near the current target */
if (currtarget==0) break;
if (planets[currtarget].Type==SATELLITE) {
xx=planets[planets[currtarget].Sat].posx-planets[currtarget].posx;
yy=planets[planets[currtarget].Sat].posy-planets[currtarget].posy;
zz=planets[planets[currtarget].Sat].posz-planets[currtarget].posz;
d=DISTANCE(xx,yy,zz);
camx=planets[planets[currtarget].Sat].posx-xx/d*(d+RADIUSSCALE(planets[currtarget].Radius*8.0));
camy=planets[planets[currtarget].Sat].posy-yy/d*(d+RADIUSSCALE(planets[currtarget].Radius*8.0));
camz=planets[planets[currtarget].Sat].posz-zz/d*(d+RADIUSSCALE(planets[currtarget].Radius*8.0));
eyex=planets[planets[currtarget].Sat].posx-camx;
eyey=planets[planets[currtarget].Sat].posy-camy;
eyez=planets[planets[currtarget].Sat].posz-camz;
d=DISTANCE(eyex,eyey,eyez);
eyex/=d; eyey/=d; eyez/=d;
xx=planets[currtarget].posx-planets[planets[currtarget].Sat].posx;
yy=planets[currtarget].posy-planets[planets[currtarget].Sat].posy;
zz=planets[currtarget].posz-planets[planets[currtarget].Sat].posz;
upx=0.0;
upy=1.0;
upz=-yy/zz;
}
else {
d=DISTANCE(planets[currtarget].posx,
planets[currtarget].posy,planets[currtarget].posz);
camx=planets[currtarget].posx/d*
(d-RADIUSSCALE(planets[currtarget].Radius*8.0));
camy=planets[currtarget].posy;
camz=planets[currtarget].posz/d*
(d-RADIUSSCALE(planets[currtarget].Radius*8.0));
eyex=planets[currtarget].posx-camx;
eyey=planets[currtarget].posy-camy;
eyez=planets[currtarget].posz-camz;
upx=0.0; upy=1.0; upz=0.0;
d=DISTANCE(eyex,eyey,eyez);
eyex/=d; eyey/=d; eyez/=d;
}
break;
case 'h': help=!help;
break;
case 'd': demomode=!demomode;
break;
case 'l': lighting=!lighting;
break;
case 'b': plabels=!plabels;
break;
case 'B': slabels=!slabels;
break;
case 'i': info=!info;
break;
case 'j': joyactive=!joyactive;
break;
case '+': if (glutGetModifiers() & GLUT_ACTIVE_SHIFT) timefactor*=1.1;
else timefactor+=1/(3600.0*24.0); /* one second/iteration */
break;
case '-': if (glutGetModifiers() & GLUT_ACTIVE_SHIFT) timefactor/=1.1;
else timefactor-=1/(3600.0*24.0); /* one second/iteration */
break;
case 'z': if (cmode>1) if (zoom<100.0) zoom+=1.0;
break;
case 'Z': if (cmode>1) if (zoom>5.0) zoom-=1.0;
break;
case 'a': atmospheres=!atmospheres;
break;
}
}
void Special(int k, int x, int y)
{
double rot,xx,yy,zz;
int m;
m=glutGetModifiers();
if (m & GLUT_ACTIVE_SHIFT) rot=0.05;
else rot=0.003;
switch (k) {
case 's': if (m & GLUT_ACTIVE_CTRL){
sprintf(sbuf,"frame%d.ppm",frames);
ScreenShot(sbuf);
}
break;
case GLUT_KEY_INSERT: if (planets[currtarget].Type<=ASTEROID)
planets[currtarget].TrailEnabled=!planets[currtarget].TrailEnabled;
break;
case GLUT_KEY_LEFT:Rotation(-rot,upx,upy,upz,&eyex,&eyey,&eyez);
break;
case GLUT_KEY_RIGHT: Rotation(rot,upx,upy,upz,&eyex,&eyey,&eyez);
break;
case GLUT_KEY_DOWN: xx=upy*eyez-upz*eyey;
yy=-upx*eyez+upz*eyex;
zz=upx*eyey-upy*eyex;
Rotation(rot,xx,yy,zz,&upx,&upy,&upz);
Rotation(rot,xx,yy,zz,&eyex,&eyey,&eyez);
break;
case GLUT_KEY_UP: xx=upy*eyez-upz*eyey;
yy=-upx*eyez+upz*eyex;
zz=upx*eyey-upy*eyex;
Rotation(-rot,xx,yy,zz,&upx,&upy,&upz);
Rotation(-rot,xx,yy,zz,&eyex,&eyey,&eyez);
break;
case GLUT_KEY_PAGE_UP: accel+=10E-7/DFACTOR;
break;
case GLUT_KEY_PAGE_DOWN: accel-=10E-7/DFACTOR;
break;
case GLUT_KEY_HOME: if (m & GLUT_ACTIVE_SHIFT) {
currsource--;
while (planets[currsource].Type>=RING) currsource--;
if (currsource<0) {
currsource=NUMBODIES-1;
while (planets[currsource].Type>=RING) currsource--;
}
if (cmode==2)
if (currsource==currtarget) {
currsource--;
while (planets[currsource].Type>=RING)
currsource--;
if (currsource<0) {
currsource=NUMBODIES-1;
while (planets[currsource].Type>=RING) currsource--;
}
}
} else {
currtarget--;
while (planets[currtarget].Type>=RING)
currtarget--;
if (currtarget<0) {
currtarget=NUMBODIES-1;
while (planets[currtarget].Type>=RING) currtarget--;
}
if (cmode==2)
if (currsource==currtarget) {
currtarget--;
while (planets[currtarget].Type>=RING)
currtarget--;
if (currtarget<0) {
currtarget=NUMBODIES-1;
while (planets[currtarget].Type>=RING) currtarget--;
}
}
}
break;
case GLUT_KEY_END: if (m & GLUT_ACTIVE_SHIFT) {
currsource=(currsource+1)%NUMBODIES;
while (planets[currsource].Type>=RING)
currsource=(currsource+1)%NUMBODIES;
if (cmode==2)
if (currsource==currtarget) {
currsource=(currsource+1)%NUMBODIES;
while (planets[currsource].Type>=RING)
currsource=(currsource+1)%NUMBODIES;
}
} else {
currtarget=(currtarget+1)%NUMBODIES;
while (planets[currtarget].Type>=RING)
currtarget=(currtarget+1)%NUMBODIES;
if (cmode==2)
if (currtarget==currsource) {
currtarget=(currtarget+1)%NUMBODIES;
while (planets[currtarget].Type>=RING)
currtarget=(currtarget+1)%NUMBODIES;
}
}
break;
}
}