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extremetuxracer  0.5beta
stuff.cpp
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00001 /* 
00002  * PPRacer 
00003  * Copyright (C) 2004-2005 Volker Stroebel <volker@planetpenguin.de>
00004  *
00005  * Copyright (C) 1999-2001 Jasmin F. Patry
00006  * 
00007  * This program is free software; you can redistribute it and/or
00008  * modify it under the terms of the GNU General Public License
00009  * as published by the Free Software Foundation; either version 2
00010  * of the License, or (at your option) any later version.
00011  * 
00012  * This program is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  * GNU General Public License for more details.
00016  * 
00017  * You should have received a copy of the GNU General Public License
00018  * along with this program; if not, write to the Free Software
00019  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
00020  */
00021  
00022 #include "stuff.h" 
00023 
00024 #include "SDL.h"
00025  
00026 pp::Vec3d
00027 projectIntoPlane(const pp::Vec3d nml, const pp::Vec3d v)
00028 {
00029        return v-nml*v*nml;
00030 }
00031 
00032 void
00033 getTimeComponents(   float time, 
00034                                    int& minutes,
00035                                    int& seconds,
00036                                    int& hundredths )
00037 {
00038     minutes = (int) (time / 60);
00039     seconds = ((int) time) % 60;
00040     hundredths = ((int) (time * 100 + 0.5) ) % 100;
00041 }
00042 
00043 float
00044 getClockTime()
00045 {
00046     return SDL_GetTicks()/1000.0;
00047 }