minetest/src/utility.cpp

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/*
Minetest-c55
Copyright (C) 2010 celeron55, Perttu Ahola <celeron55@gmail.com>
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.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
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/*
(c) 2010 Perttu Ahola <celeron55@gmail.com>
*/
#include "utility.h"
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#include "irrlichtwrapper.h"
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#include "gettime.h"
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TimeTaker::TimeTaker(const char *name, u32 *result)
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{
m_name = name;
m_result = result;
m_running = true;
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m_time1 = getTimeMs();
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}
u32 TimeTaker::stop(bool quiet)
{
if(m_running)
{
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u32 time2 = getTimeMs();
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u32 dtime = time2 - m_time1;
if(m_result != NULL)
{
(*m_result) += dtime;
}
else
{
if(quiet == false)
std::cout<<m_name<<" took "<<dtime<<"ms"<<std::endl;
}
m_running = false;
return dtime;
}
return 0;
}
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const v3s16 g_26dirs[26] =
{
// +right, +top, +back
v3s16( 0, 0, 1), // back
v3s16( 0, 1, 0), // top
v3s16( 1, 0, 0), // right
v3s16( 0, 0,-1), // front
v3s16( 0,-1, 0), // bottom
v3s16(-1, 0, 0), // left
// 6
v3s16(-1, 1, 0), // top left
v3s16( 1, 1, 0), // top right
v3s16( 0, 1, 1), // top back
v3s16( 0, 1,-1), // top front
v3s16(-1, 0, 1), // back left
v3s16( 1, 0, 1), // back right
v3s16(-1, 0,-1), // front left
v3s16( 1, 0,-1), // front right
v3s16(-1,-1, 0), // bottom left
v3s16( 1,-1, 0), // bottom right
v3s16( 0,-1, 1), // bottom back
v3s16( 0,-1,-1), // bottom front
// 18
v3s16(-1, 1, 1), // top back-left
v3s16( 1, 1, 1), // top back-right
v3s16(-1, 1,-1), // top front-left
v3s16( 1, 1,-1), // top front-right
v3s16(-1,-1, 1), // bottom back-left
v3s16( 1,-1, 1), // bottom back-right
v3s16(-1,-1,-1), // bottom front-left
v3s16( 1,-1,-1), // bottom front-right
// 26
};
static unsigned long next = 1;
/* RAND_MAX assumed to be 32767 */
int myrand(void)
{
next = next * 1103515245 + 12345;
return((unsigned)(next/65536) % 32768);
}
void mysrand(unsigned seed)
{
next = seed;
}
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