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147 lines
4.6 KiB
C++
147 lines
4.6 KiB
C++
/*
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** dthinker.h
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**
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**---------------------------------------------------------------------------
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** Copyright 1998-2006 Randy Heit
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions
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** are met:
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**
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** 1. Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** 2. Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** 3. The name of the author may not be used to endorse or promote products
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** derived from this software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**---------------------------------------------------------------------------
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**
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*/
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#ifndef __DTHINKER_H__
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#define __DTHINKER_H__
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#include <stdlib.h>
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#include "dobject.h"
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class AActor;
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class player_t;
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struct pspdef_s;
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struct FState;
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class FThinkerIterator;
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enum { MAX_STATNUM = 127 };
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// Doubly linked ring list of thinkers
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struct FThinkerList
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{
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FThinkerList() : Sentinel(0) {}
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void AddTail(DThinker *thinker);
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DThinker *GetHead() const;
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DThinker *GetTail() const;
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bool IsEmpty() const;
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DThinker *Sentinel;
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};
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class DThinker : public DObject
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{
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DECLARE_CLASS (DThinker, DObject)
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public:
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DThinker (int statnum = MAX_STATNUM) throw();
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void Destroy ();
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virtual ~DThinker ();
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virtual void Tick ();
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virtual void PostBeginPlay (); // Called just before the first tick
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size_t PropagateMark();
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void ChangeStatNum (int statnum);
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static void RunThinkers ();
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static void RunThinkers (int statnum);
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static void DestroyAllThinkers ();
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static void DestroyMostThinkers ();
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static void SerializeAll (FArchive &arc, bool keepPlayers);
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static void MarkRoots();
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static DThinker *FirstThinker (int statnum);
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private:
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enum no_link_type { NO_LINK };
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DThinker(no_link_type) throw();
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static void DestroyThinkersInList (FThinkerList &list);
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static void DestroyMostThinkersInList (FThinkerList &list, int stat);
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static int TickThinkers (FThinkerList *list, FThinkerList *dest); // Returns: # of thinkers ticked
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static void SaveList(FArchive &arc, DThinker *node);
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void Remove();
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static FThinkerList Thinkers[MAX_STATNUM+2]; // Current thinkers
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static FThinkerList FreshThinkers[MAX_STATNUM+1]; // Newly created thinkers
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static bool bSerialOverride;
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friend struct FThinkerList;
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friend class FThinkerIterator;
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friend class DObject;
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DThinker *NextThinker, *PrevThinker;
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};
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class FThinkerIterator
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{
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protected:
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const PClass *m_ParentType;
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private:
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DThinker *m_CurrThinker;
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BYTE m_Stat;
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bool m_SearchStats;
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bool m_SearchingFresh;
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public:
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FThinkerIterator (const PClass *type, int statnum=MAX_STATNUM+1);
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FThinkerIterator (const PClass *type, int statnum, DThinker *prev);
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DThinker *Next ();
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void Reinit ();
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};
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template <class T> class TThinkerIterator : public FThinkerIterator
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{
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public:
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TThinkerIterator (int statnum=MAX_STATNUM+1) : FThinkerIterator (RUNTIME_CLASS(T), statnum)
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{
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}
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TThinkerIterator (int statnum, DThinker *prev) : FThinkerIterator (RUNTIME_CLASS(T), statnum, prev)
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{
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}
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TThinkerIterator (const PClass *subclass, int statnum=MAX_STATNUM+1) : FThinkerIterator(subclass, statnum)
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{
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}
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TThinkerIterator (FName subclass, int statnum=MAX_STATNUM+1) : FThinkerIterator(PClass::FindClass(subclass), statnum)
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{
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}
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TThinkerIterator (ENamedName subclass, int statnum=MAX_STATNUM+1) : FThinkerIterator(PClass::FindClass(subclass), statnum)
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{
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}
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TThinkerIterator (const char *subclass, int statnum=MAX_STATNUM+1) : FThinkerIterator(PClass::FindClass(subclass), statnum)
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{
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}
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T *Next ()
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{
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return static_cast<T *>(FThinkerIterator::Next ());
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}
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};
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#endif //__DTHINKER_H__
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