src/util/directiontables.cpp


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/*
Minetest
Copyright (C) 2010-2013 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 Lesser General Public License as published by
the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.

You should have received a copy of the GNU Lesser 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.
*/

#include "directiontables.h"

const v3s16 g_6dirs[6] =
{
	// +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
};

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
};

const v3s16 g_27dirs[27] =
{
	// +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
	v3s16(0,0,0),
};
/*
Minetest
Copyright (C) 2013 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 Lesser General Public License as published by
the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.

You should have received a copy of the GNU Lesser 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.
*/

/*
	Random portability stuff

	See comments in porting.h
*/

#include "porting.h"

#if defined(__FreeBSD__)
	#include <sys/types.h>
	#include <sys/sysctl.h>
#elif defined(_WIN32)
	#include <algorithm>
#endif
#if !defined(_WIN32)
	#include <unistd.h>
	#include <sys/utsname.h>
#endif
#if defined(__hpux)
	#define _PSTAT64
	#include <sys/pstat.h>
#endif
#if !defined(_WIN32) && !defined(__APPLE__) && \
	!defined(__ANDROID__) && !defined(SERVER)
	#define XORG_USED
#endif
#ifdef XORG_USED
	#include <X11/Xlib.h>
	#include <X11/Xutil.h>
#endif

#include "config.h"
#include "debug.h"
#include "filesys.h"
#include "log.h"
#include "util/string.h"
#include "settings.h"
#include <list>

namespace porting
{

/*
	Signal handler (grabs Ctrl-C on POSIX systems)
*/

bool g_killed = false;

bool * signal_handler_killstatus(void)
{
	return &g_killed;
}

#if !defined(_WIN32) // POSIX
	#include <signal.h>

void sigint_handler(int sig)
{
	if (!g_killed) {
		dstream << "INFO: sigint_handler(): "
			<< "Ctrl-C pressed, shutting down." << std::endl;

		// Comment out for less clutter when testing scripts
		/*dstream << "INFO: sigint_handler(): "
				<< "Printing debug stacks" << std::endl;
		debug_stacks_print();*/

		g_killed = true;
	} else {
		(void)signal(SIGINT, SIG_DFL);
	}
}

void signal_handler_init(void)
{
	(void)signal(SIGINT, sigint_handler);
}

#else // _WIN32
	#include <signal.h>

BOOL WINAPI event_handler(DWORD sig)
{
	switch (sig) {
	case CTRL_C_EVENT:
	case CTRL_CLOSE_EVENT:
	case CTRL_LOGOFF_EVENT:
	case CTRL_SHUTDOWN_EVENT:
		if (!g_killed) {
			dstream << "INFO: event_handler(): "
				<< "Ctrl+C, Close Event, Logoff Event or Shutdown Event,"
				" shutting down." << std::endl;
			g_killed = true;
		} else {
			(void)signal(SIGINT, SIG_DFL);
		}
		break;
	case CTRL_BREAK_EVENT:
		break;
	}

	return TRUE;
}

void signal_handler_init(void)
{
	SetConsoleCtrlHandler((PHANDLER_ROUTINE)event_handler, TRUE);
}

#endif


/*
	Path mangler
*/

// Default to RUN_IN_PLACE style relative paths
std::string path_share = "..";
std::string path_user = "..";
std::string path_locale = path_share + DIR_DELIM + "locale";


std::string getDataPath(const char *subpath)
{
	return path_share + DIR_DELIM + subpath;
}

void pathRemoveFile(char *path, char delim)
{
	// Remove filename and path delimiter
	int i;
	for(i = strlen(path)-1; i>=0; i--)
	{
		if(path[i] == delim)
			break;
	}
	path[i] = 0;
}

bool detectMSVCBuildDir(const std::string &path)
{
	const char *ends[] = {
		"bin\\Release",
		"bin\\Debug",
		"bin\\Build",
		NULL
	};
	return (removeStringEnd(path, ends) != "");
}

std::string get_sysinfo()
{
#ifdef _WIN32
	OSVERSIONINFO osvi;
	std::ostringstream oss;
	std::string tmp;
	ZeroMemory(&osvi, sizeof(OSVERSIONINFO));
	osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
	GetVersionEx(&osvi);
	tmp = osvi.szCSDVersion;
	std::replace(tmp.begin(), tmp.end(), ' ', '_');

	oss << "Windows/" << osvi.dwMajorVersion << "."
		<< osvi.dwMinorVersion;
	if (osvi.szCSDVersion[0])
		oss << "-" << tmp;
	oss << " ";
	#ifdef _WIN64
	oss << "x86_64";
	#else
	BOOL is64 = FALSE;
	if (IsWow64Process(GetCurrentProcess(), &is64) && is64)
		oss << "x86_64"; // 32-bit app on 64-bit OS
	else
		oss << "x86";
	#endif

	return oss.str();
#else
	struct utsname osinfo;
	uname(&osinfo);
	return std::string(osinfo.sysname) + "/"
		+ osinfo.release + " " + osinfo.machine;
#endif
}