71 lines
1.9 KiB
C
71 lines
1.9 KiB
C
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// Copyright (C) 2007 Id Software, Inc.
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//
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#ifndef __BOTTHREAD_H__
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#define __BOTTHREAD_H__
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/*
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===============================================================================
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idBotThread
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The bot thread is setup such that the bot AI can never think for more
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frames than there are game frames. Furthermore the bot AI cannot
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think for less frames than one fourth the number of game frames.
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In other words the AI runs asynchronously but it can run at most
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at 30 Hz (USERCMD_HZ) and if not enough CPU is available it can
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seamlessly scale down to 6 Hz. If the bot AI runs fast the bot
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thread will wait for the game thread. If the bot AI runs really
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slow such that it cannot maintain 8 Hz the game code will wait
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for the bot thread to catch up.
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===============================================================================
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*/
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#define MAX_FRAME_TIMES 16
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class idBotAI;
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class idBotThread : public sdThreadProcess {
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public:
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idBotThread();
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~idBotThread();
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void StartThread();
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void StopThread();
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virtual unsigned int Run( void* parm );
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virtual void Stop();
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void WaitForGameThread() { gameSignal.SignalAndWait( botSignal ); }
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void SignalGameThread() { botSignal.Set(); }
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void WaitForBotThread() { botSignal.Wait(); }
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void SignalBotThread() { gameSignal.Set(); }
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void Lock() { lock.Acquire(); }
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void UnLock() { lock.Release(); }
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int GetLastGameFrameNum() const { return lastGameFrameNum; }
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int GetFrameRate() const;
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bool IsActive() const { return isActive; }
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bool IsWaiting() const { return isWaiting; }
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private:
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sdThread * thread;
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sdSignal gameSignal;
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sdSignal botSignal;
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sdLock lock;
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int lastGameFrameNum;
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bool isWaiting;
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bool isActive;
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int frameTimes[MAX_FRAME_TIMES];
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int numFrameTimes;
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};
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extern idBotThread * botThread;
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#endif /* !__BOTTHREAD_H__ */
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