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https://github.com/minetest/irrlicht.git
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0c6385cb92
Usually something like __IRR_SOME_GUARD_INCLUDED__ replaced by IRR_SOME_GUARD_INCLUDED. Removing underscores at the end wasn't necessary, but more symmetric (probably the reason they got added there as well). While this touches every header it shouldn't affect users (I hope). Also a few whitespace changes to unify whitespace usage a bit. And a bunch of spelling fixes in comments. git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6252 dfc29bdd-3216-0410-991c-e03cc46cb475
131 lines
3.2 KiB
C++
131 lines
3.2 KiB
C++
// Copyright (C) 2002-2012 Nikolaus Gebhardt
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// This file is part of the "Irrlicht Engine".
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// For conditions of distribution and use, see copyright notice in irrlicht.h
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#ifndef IRR_OS_H_INCLUDED
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#define IRR_OS_H_INCLUDED
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#include "IrrCompileConfig.h" // for endian check
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#include "irrTypes.h"
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#include "irrString.h"
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#include "path.h"
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#include "ILogger.h"
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#include "ITimer.h"
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namespace irr
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{
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namespace os
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{
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class Byteswap
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{
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public:
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static u16 byteswap(u16 num);
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static s16 byteswap(s16 num);
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static u32 byteswap(u32 num);
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static s32 byteswap(s32 num);
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static f32 byteswap(f32 num);
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// prevent accidental swapping of chars
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static u8 byteswap(u8 num);
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static c8 byteswap(c8 num);
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};
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class Printer
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{
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public:
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// prints out a string to the console out stdout or debug log or whatever
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static void print(const c8* message);
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static void log(const c8* message, ELOG_LEVEL ll = ELL_INFORMATION);
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static void log(const wchar_t* message, ELOG_LEVEL ll = ELL_INFORMATION);
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static void log(const c8* message, const c8* hint, ELOG_LEVEL ll = ELL_INFORMATION);
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static void log(const c8* message, const io::path& hint, ELOG_LEVEL ll = ELL_INFORMATION);
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static ILogger* Logger;
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};
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// congruential pseudo-random generator
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// numbers identical to std::minstd_rand0
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// period is somewhere around m-1
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class Randomizer
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{
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public:
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//! resets the randomizer
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static void reset(s32 value=0x0f0f0f0f);
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//! generates a pseudo random number in the range 0..randMax()
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static s32 rand();
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//! generates a pseudo random number in the range 0..1
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static f32 frand();
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//! get maximum number generated by rand()
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static s32 randMax();
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private:
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static s32 seed;
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static const s32 m = 2147483647; // a Mersenne prime (2^31-1)
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static const s32 a = 16807; // another spectral success story
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static const s32 q = m/a;
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static const s32 r = m%a; // again less than q
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static const s32 rMax = m-2;
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};
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class Timer
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{
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public:
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//! returns the current time in milliseconds
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static u32 getTime();
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//! get current time and date in calendar form
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static ITimer::RealTimeDate getRealTimeAndDate();
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//! initializes the real timer
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static void initTimer(bool usePerformanceTimer=true);
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//! sets the current virtual (game) time
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static void setTime(u32 time);
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//! stops the virtual (game) timer
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static void stopTimer();
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//! starts the game timer
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static void startTimer();
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//! sets the speed of the virtual timer
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static void setSpeed(f32 speed);
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//! gets the speed of the virtual timer
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static f32 getSpeed();
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//! returns if the timer currently is stopped
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static bool isStopped();
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//! makes the virtual timer update the time value based on the real time
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static void tick();
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//! returns the current real time in milliseconds
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static u32 getRealTime();
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private:
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static void initVirtualTimer();
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static f32 VirtualTimerSpeed;
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static s32 VirtualTimerStopCounter;
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static u32 StartRealTime;
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static u32 LastVirtualTime;
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static u32 StaticTime;
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};
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} // end namespace os
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} // end namespace irr
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#endif
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