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Directory restructuring to make it easier to version projects that don't build zdoom.exe.

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SVN r4 (trunk)
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Randy Heit 2006-02-24 04:48:15 +00:00
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/*
** dobject.h
**
**---------------------------------------------------------------------------
** Copyright 1998-2005 Randy Heit
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
**
** 1. Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** 2. Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in the
** documentation and/or other materials provided with the distribution.
** 3. The name of the author may not be used to endorse or promote products
** derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**---------------------------------------------------------------------------
**
*/
#ifndef __DOBJECT_H__
#define __DOBJECT_H__
#include <stdlib.h>
#include "tarray.h"
#include "doomtype.h"
class FArchive;
class DObject;
class DArgs;
class DBoundingBox;
class DCanvas;
class DConsoleCommand;
class DConsoleAlias;
class DSeqNode;
class DSeqActorNode;
class DSeqPolyNode;
class DSeqSectorNode;
class DThinker;
class AActor;
class DPolyAction;
class DMovePoly;
class DPolyDoor;
class DRotatePoly;
class DPusher;
class DScroller;
class DSectorEffect;
class DLighting;
class DFireFlicker;
class DFlicker;
class DGlow;
class DGlow2;
class DLightFlash;
class DPhased;
class DStrobe;
class DMover;
class DElevator;
class DMovingCeiling;
class DCeiling;
class DDoor;
class DMovingFloor;
class DFloor;
class DFloorWaggle;
class DPlat;
class DPillar;
struct FActorInfo;
enum EMetaType
{
META_Int, // An int
META_Fixed, // A fixed point number
META_String, // A string
};
class FMetaData
{
private:
FMetaData (EMetaType type, DWORD id) : Type(type), ID(id) {}
FMetaData *Next;
EMetaType Type;
DWORD ID;
union
{
int Int;
char *String;
fixed_t Fixed;
} Value;
friend class FMetaTable;
};
class FMetaTable
{
public:
FMetaTable() : Meta(NULL) {}
FMetaTable(const FMetaTable &other);
~FMetaTable();
FMetaTable &operator = (const FMetaTable &other);
void SetMetaInt (DWORD id, int parm);
void SetMetaFixed (DWORD id, fixed_t parm);
void SetMetaString (DWORD id, const char *parm); // The string is copied
int GetMetaInt (DWORD id) const;
fixed_t GetMetaFixed (DWORD id) const;
const char *GetMetaString (DWORD id) const;
FMetaData *FindMeta (EMetaType type, DWORD id) const;
private:
FMetaData *Meta;
FMetaData *FindMetaDef (EMetaType type, DWORD id);
void FreeMeta ();
void CopyMeta (const FMetaTable *other);
};
struct TypeInfo
{
static void StaticInit ();
const char *Name;
TypeInfo *ParentType;
unsigned int SizeOf;
const size_t *Pointers; // object pointers defined by this class *only*
void (*ConstructNative)(void *);
FActorInfo *ActorInfo;
unsigned int HashNext;
unsigned short TypeIndex;
FMetaTable Meta;
const size_t *FlatPointers; // object pointers defined by this class and all its superclasses; not initialized by default
void RegisterType ();
DObject *CreateNew () const;
TypeInfo *CreateDerivedClass (char *name, unsigned int size);
void BuildFlatPointers ();
// Returns true if this type is an ancestor of (or same as) the passed type.
bool IsAncestorOf (const TypeInfo *ti) const
{
while (ti)
{
if (this == ti)
return true;
ti = ti->ParentType;
}
return false;
}
inline bool IsDescendantOf (const TypeInfo *ti) const
{
return ti->IsAncestorOf (this);
}
static const TypeInfo *FindType (const char *name);
static const TypeInfo *IFindType (const char *name);
static unsigned short m_NumTypes, m_MaxTypes;
static TypeInfo **m_Types;
static TArray<TypeInfo *> m_RuntimeActors;
enum { HASH_SIZE = 256 };
static unsigned int TypeHash[HASH_SIZE];
};
#define RUNTIME_TYPE(object) (object->GetClass()) // Passed an object, returns the type of that object
#define RUNTIME_CLASS(cls) (&cls::_StaticType) // Passed a class name, returns a TypeInfo representing that class
enum EInPlace { EC_InPlace };
#define DECLARE_ABSTRACT_CLASS(cls,parent) \
public: \
static TypeInfo _StaticType; \
virtual TypeInfo *StaticType() const { return RUNTIME_CLASS(cls); } \
private: \
typedef parent Super; \
typedef cls ThisClass;
#define DECLARE_CLASS(cls,parent) \
DECLARE_ABSTRACT_CLASS(cls,parent) \
private: static void InPlaceConstructor (void *mem);
#define HAS_OBJECT_POINTERS \
static const size_t PointerOffsets[];
// Taking the address of a field in an object at address 1 instead of
// address 0 keeps GCC from complaining about possible misuse of offsetof.
#define DECLARE_POINTER(field) (size_t)&((ThisClass*)1)->field - 1,
#define END_POINTERS ~0 };
#if !defined(_MSC_VER) && !defined(__GNUC__)
# define _IMP_TYPEINFO(cls,ptr,create) \
TypeInfo cls::_StaticType (ptr, #cls, RUNTIME_CLASS(cls::Super), sizeof(cls), create);
#else
# if defined(_MSC_VER)
# pragma data_seg(".creg$u")
# pragma data_seg()
# define _DECLARE_TI(cls) __declspec(allocate(".creg$u")) TypeInfo *_##cls##AddType = &cls::_StaticType;
# else
# define _DECLARE_TI(cls) TypeInfo *_##cls##AddType __attribute__((section("creg"))) = &cls::_StaticType;
# endif
# define _IMP_TYPEINFO(cls,ptrs,create) \
TypeInfo cls::_StaticType = { \
#cls, \
RUNTIME_CLASS(cls::Super), \
sizeof(cls), \
ptrs, \
create, }; \
_DECLARE_TI(cls)
#endif
#define _IMP_CREATE_OBJ(cls) \
void cls::InPlaceConstructor(void *mem) { new((EInPlace *)mem) cls; }
#define IMPLEMENT_POINTY_CLASS(cls) \
_IMP_CREATE_OBJ(cls) \
_IMP_TYPEINFO(cls,cls::PointerOffsets,cls::InPlaceConstructor) \
const size_t cls::PointerOffsets[] = {
#define IMPLEMENT_CLASS(cls) \
_IMP_CREATE_OBJ(cls) \
_IMP_TYPEINFO(cls,NULL,cls::InPlaceConstructor)
#define IMPLEMENT_ABSTRACT_CLASS(cls) \
_IMP_TYPEINFO(cls,NULL,NULL)
enum EObjectFlags
{
OF_MassDestruction = 0x00000001, // Object is queued for deletion
OF_Cleanup = 0x00000002, // Object is being deconstructed as a result of a queued deletion
OF_JustSpawned = 0x00000004, // Thinker was spawned this tic
OF_SerialSuccess = 0x10000000 // For debugging Serialize() calls
};
class DObject
{
public: \
static TypeInfo _StaticType; \
virtual TypeInfo *StaticType() const { return &_StaticType; } \
private: \
typedef DObject ThisClass;
public:
DObject ();
DObject (TypeInfo *inClass);
virtual ~DObject ();
inline bool IsKindOf (const TypeInfo *base) const
{
return base->IsAncestorOf (GetClass ());
}
inline bool IsA (const TypeInfo *type) const
{
return (type == GetClass());
}
virtual void Serialize (FArchive &arc);
// For catching Serialize functions in derived classes
// that don't call their base class.
void CheckIfSerialized () const;
virtual void Destroy ();
static void BeginFrame ();
static void EndFrame ();
// If you need to replace one object with another and want to
// change any pointers from the old object to the new object,
// use this method.
static void PointerSubstitution (DObject *old, DObject *notOld);
DWORD ObjectFlags;
static void STACK_ARGS StaticShutdown ();
TypeInfo *GetClass() const
{
if (Class == NULL)
{
// Save a little time the next time somebody wants this object's type
// by recording it now.
const_cast<DObject *>(this)->Class = StaticType();
}
return Class;
}
void SetClass (TypeInfo *inClass)
{
Class = inClass;
}
void *operator new(size_t len)
{
return Malloc(len);
}
void operator delete (void *mem)
{
free (mem);
}
protected:
// This form of placement new and delete is for use *only* by TypeInfo's
// CreateNew() method. Do not use them for some other purpose.
void *operator new(size_t len, EInPlace *mem)
{
return (void *)mem;
}
void operator delete (void *mem, EInPlace *foo)
{
free (mem);
}
private:
TypeInfo *Class;
static TArray<DObject *> Objects;
static TArray<size_t> FreeIndices;
static TArray<DObject *> ToDestroy;
static void DestroyScan (DObject *obj);
static void DestroyScan ();
void RemoveFromArray ();
static bool Inactive;
unsigned int Index;
};
#endif //__DOBJECT_H__