mirror of https://github.com/stella-emu/stella.git
47 lines
1.3 KiB
C++
47 lines
1.3 KiB
C++
//============================================================================
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//
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// SSSS tt lll lll
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// SS SS tt ll ll
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// SS tttttt eeee ll ll aaaa
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// SSSS tt ee ee ll ll aa
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// SS tt eeeeee ll ll aaaaa -- "An Atari 2600 VCS Emulator"
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// SS SS tt ee ll ll aa aa
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// SSSS ttt eeeee llll llll aaaaa
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//
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// Copyright (c) 1995-2010 by Bradford W. Mott and the Stella Team
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//
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// See the file "License.txt" for information on usage and redistribution of
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// this file, and for a DISCLAIMER OF ALL WARRANTIES.
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//
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// $Id$
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//============================================================================
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#include <time.h>
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#include "OSystem.hxx"
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#include "Random.hxx"
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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Random::Random()
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{
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initSeed();
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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void Random::initSeed()
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{
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if(ourSystem)
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myValue = ourSystem->getTicks();
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else
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myValue = (uInt32)time(0);
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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uInt32 Random::next()
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{
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return (myValue = (myValue * 2416 + 374441) % 1771875);
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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const OSystem* Random::ourSystem = NULL;
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