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/*==LICENSE==*
CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011 Cyan Worlds, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
You can contact Cyan Worlds, Inc. by email legal@cyan.com
or by snail mail at:
Cyan Worlds, Inc.
14617 N Newport Hwy
Mead, WA 99021
*==LICENSE==*/
#ifndef PLSYNCHOBJ_inc
#define PLSYNCHOBJ_inc
#include "hsTypes.h"
#include "../pnKeyedObject/hsKeyedObject.h"
#include "../pnKeyedObject/plKey.h"
#include "hsStlUtils.h"
#include "plNetGroup.h"
/////////////////////////////////////
// plSynchedObject
// one per savable object
/////////////////////////////////////
class hsStream;
class plDirtyNotifier;
class plSynchedObject : public hsKeyedObject
{
public:
enum LocallyOwnedAnswer
{
kNo=false,
kYes=true
};
enum Flags
{
kDontDirty = 0x1,
kSendReliably = 0x2, // object wants reliable send
kHasConstantNetGroup = 0x4, // has a constant net group.
kDontSynchGameMessages = 0x8, // don't send/recv game actions
kExcludePersistentState = 0x10, // don't send SDL state msgs to server, check exclude list
kExcludeAllPersistentState=0x20, // don't send ANY type of SDL state
kLocalOnly = (kExcludeAllPersistentState | kDontSynchGameMessages), // localOnly in all respects
kHasVolatileState = 0x40, // server won't save this state on shutdown
kAllStateIsVolatile = 0x80
};
enum SDLSendFlags
{
kBCastToClients = 0x1,
kForceFullSend = 0x2,
kSkipLocalOwnershipCheck= 0x4,
kSendImmediately = 0x8,
kDontPersistOnServer = 0x10, // for an SDL bcast msg which is used for synching only, not persisting
kUseRelevanceRegions = 0x20,
kNewState = 0x40,
kIsAvatarState = 0x80,
};
struct StateDefn
{
plKey fObjKey;
UInt32 fSendFlags;
std::string fSDLName;
plSynchedObject* GetObject() const { return plSynchedObject::ConvertNoRef(fObjKey->ObjectIsLoaded()); }
StateDefn() : fObjKey(nil),fSendFlags(0) {}
StateDefn(plKey k, UInt32 f, const char* sdlName) : fObjKey(k),fSendFlags(f) { fSDLName=sdlName; }
};
private:
typedef std::vector<std::string> SDLStateList;
SDLStateList fSDLExcludeList;
SDLStateList fSDLVolatileList;
UInt32 fSynchFlags;
plNetGroupId fNetGroup;
static std::vector<hsBool> fSynchStateStack;
static plSynchedObject* fStaticSynchedObj; // static which temporarily holds address of each object's synchMgr
static std::vector<StateDefn> fDirtyStates;
static void IRemoveDirtyState(plKey o, const char* sdlName);
static void IAddDirtyState(plKey o, const char* sdlName, UInt32 sendFlags);
bool IOKToDirty(const char* SDLStateName) const;
SDLStateList::const_iterator IFindInSDLStateList(const SDLStateList& list, const char* sdlName) const;
protected:
bool IOKToNetwork(const char* sdlName, UInt32* synchFlags) const;
public:
plSynchedObject();
virtual ~plSynchedObject();
CLASSNAME_REGISTER( plSynchedObject );
GETINTERFACE_ANY( plSynchedObject, hsKeyedObject);
virtual hsBool MsgReceive(plMessage* msg);
// getters
int GetSynchFlags() const { return fSynchFlags; }
plNetGroupId GetNetGroup() const { return fNetGroup; };
plNetGroupId GetEffectiveNetGroup() const;
// setters
void SetSynchFlagsBit(UInt32 f) { fSynchFlags |= f; }
virtual void SetNetGroupConstant(plNetGroupId netGroup);
virtual void SetNetGroup(plNetGroupId netGroup) { fNetGroup = netGroup; }
plNetGroupId SelectNetGroup(plKey groupKey);
virtual hsBool DirtySynchState(const char* sdlName, UInt32 sendFlags);
void SendSDLStateMsg(const char* SDLStateName, UInt32 synchFlags); // don't use, only for net code
void ClearSynchFlagsBit(UInt32 f) { fSynchFlags &= ~f; }
// static
static hsBool GetSynchDisabled() { return fSynchStateStack.size() ? fSynchStateStack.back() : true; }
static void PushSynchDisabled(hsBool b) { fSynchStateStack.push_back(b); }
static hsBool PopSynchDisabled();
static plSynchedObject* GetStaticSynchedObject() { return fStaticSynchedObj; }
static Int32 GetNumDirtyStates() { return fDirtyStates.size(); }
static plSynchedObject::StateDefn* GetDirtyState(Int32 i) { return &fDirtyStates[i]; }
static void ClearDirtyState(std::vector<StateDefn>& carryOver) { fDirtyStates=carryOver; }
// IO
// void SendCreationMsg(double secs);
// void SendDestructionMsg(double secs) ;
virtual void Read(hsStream* s, hsResMgr* mgr);
virtual void Write(hsStream* s, hsResMgr* mgr);
int IsLocallyOwned() const; // returns yes/no/maybe
// disable net synching only
bool IsNetSynched() const { return (fSynchFlags & kDontSynchGameMessages)==0; }
void SetNetSynched(bool b) { if (!b) fSynchFlags |= kDontSynchGameMessages; else fSynchFlags &= ~kDontSynchGameMessages; }
// disable net synching AND persisting
bool IsLocalOnly() const { return (fSynchFlags & kLocalOnly)==0; }
void SetLocalOnly(bool b) { if (b) fSynchFlags |= kLocalOnly; else fSynchFlags &= ~kLocalOnly; }
// disable particular types of persistence
void AddToSDLExcludeList(const char*);
void RemoveFromSDLExcludeList(const char*);
bool IsInSDLExcludeList(const char*) const;
// make volatile particular types of state
void AddToSDLVolatileList(const char*);
void RemoveFromSDLVolatileList(const char*);
bool IsInSDLVolatileList(const char*) const;
//
// synched value stuff, currently unused
// current size is 16 + numValue bytes*2 + numFriends*4 bytes
//
#ifdef USE_SYNCHED_VALUES
public:
typedef UInt16 AddrOffsetType;
typedef UInt8 NumSynchedValuesType;
typedef UInt16 FlagsType;
friend class plSynchedValueBase;
private:
AddrOffsetType* fSynchedValueAddrOffsets; // represent dwords offsets
NumSynchedValuesType fNumSynchedValues;
// array of friends
plSynchedValueBase** fSynchedValueFriends;
NumSynchedValuesType fNumSynchedValueFriends;
// dirty callback notifiers
std::vector<plDirtyNotifier*> fDirtyNotifiers;
void IAppendSynchedValueAddrOffset(AddrOffsetType synchedValueAddrOffset);
void IAppendSynchedValueFriend(plSynchedValueBase* v);
plSynchedValueBase* IGetSynchedValue(NumSynchedValuesType i) const
{ return (plSynchedValueBase*)((Int32)this + (fSynchedValueAddrOffsets[i]<<2)); }
plSynchedValueBase* IGetSynchedValueFriend(NumSynchedValuesType i) const
{ return fSynchedValueFriends[i]; }
public:
Int32 GetNumSynchedValues() const { return fNumSynchedValues+fNumSynchedValueFriends; }
plSynchedValueBase* GetSynchedValue(int i) const;
UInt8 RegisterSynchedValue(plSynchedValueBase* v);
hsBool RemoveSynchedValue(plSynchedValueBase* v); // handles SVFriends too
void RegisterSynchedValueFriend(plSynchedValueBase* v);
#endif
#ifdef USE_DIRTY_NOTIFIERS
// dirty CB notifiers
void AddDirtyNotifier(plDirtyNotifier* dn);
void RemoveDirtyNotifier(plDirtyNotifier* dn);
#endif
void CallDirtyNotifiers();
};
//
// helper class to set dirty tracking on/off within scope
//
class plSynchEnabler
{
public:
plSynchEnabler(hsBool enable) { plSynchedObject::PushSynchDisabled(!enable); }
~plSynchEnabler() { plSynchedObject::PopSynchDisabled(); }
};
#ifdef USE_DIRTY_NOTIFIERS
///////////////////////////////////
// plDirtyNotifier - When a synchedObj
// gets dirty, this callback will be called.
///////////////////////////////////
class plDirtyNotifier
{
protected:
plKey fSynchedObjKey;
void* fUserData;
public:
plDirtyNotifier() : fSynchedObjKey(nil),fUserData(nil) {}
virtual ~plDirtyNotifier()
{
if (fSynchedObjKey)
{
plSynchedObject* so = plSynchedObject::ConvertNoRef(fSynchedObjKey->ObjectIsLoaded());
if (so)
so->RemoveDirtyNotifier(this);
}
}
void SetSynchedObjKey(plKey k) { fSynchedObjKey=k; } // should be set
void SetUserData(void* v) { fUserData=v;} // optional
plKey GetSynchedObjKey() { return fSynchedObjKey; }
void* GetUserData() { return fUserData;}
// override
virtual void Callback() = 0;
};
#endif
//
// MACROS
//
#ifdef USE_SYNCHED_VALUES
#define SYNCHED_VALUE(type) plSynchedValue<type>
#define SYNCHED_TARRAY(type) plSynchedTArray<type>
#define SYNCHED_VALUE_FRIEND(type) plSynchedValueFriend<type>
#define SYNCHED_TARRAY_FRIEND(type) plSynchedTArrayFriend<type>
#else
#define SYNCHED_VALUE(type) type
#define SYNCHED_TARRAY(type) hsTArray<type>
#define SYNCHED_VALUE_FRIEND(type) type
#define SYNCHED_TARRAY_FRIEND(type) hsTArray<type>
#endif
#endif // PLSYNCHOBJ_inc