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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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 2
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
/*
* This file is based on WME Lite.
* http://dead-code.org/redir.php?target=wmelite
* Copyright (c) 2011 Jan Nedoma
*/
#include "persistent.h"
#include "SysInstance.h"
#include "SysClass.h"
#include "SysClassRegistry.h"
#include "BGame.h"
#include "BPersistMgr.h"
namespace WinterMute {
//////////////////////////////////////////////////////////////////////////
CSysClass::CSysClass(const AnsiString &name, PERSISTBUILD build, PERSISTLOAD load, bool persistent_class) {
m_Name = name;
m_Build = build;
m_Load = load;
m_Next = NULL;
m_SavedID = -1;
m_Persistent = persistent_class;
m_NumInst = 0;
CSysClassRegistry::GetInstance()->RegisterClass(this);
}
//////////////////////////////////////////////////////////////////////////
CSysClass::~CSysClass() {
CSysClassRegistry::GetInstance()->UnregisterClass(this);
RemoveAllInstances();
}
//////////////////////////////////////////////////////////////////////////
bool CSysClass::RemoveAllInstances() {
Instances::iterator it;
for (it = m_Instances.begin(); it != m_Instances.end(); ++it) {
delete(*it);
}
m_Instances.clear();
m_InstanceMap.clear();
return true;
}
//////////////////////////////////////////////////////////////////////////
CSysInstance *CSysClass::AddInstance(void *instance, int id, int savedId) {
CSysInstance *inst = new CSysInstance(instance, id, this);
inst->SetSavedID(savedId);
m_Instances.insert(inst);
m_InstanceMap[instance] = inst;
CSysClassRegistry::GetInstance()->AddInstanceToTable(inst, instance);
return inst;
}
//////////////////////////////////////////////////////////////////////////
bool CSysClass::RemoveInstance(void *instance) {
InstanceMap::iterator mapIt = m_InstanceMap.find(instance);
if (mapIt == m_InstanceMap.end()) return false;
Instances::iterator it = m_Instances.find((*mapIt).second);
if (it != m_Instances.end()) {
delete(*it);
m_Instances.erase(it);
}
m_InstanceMap.erase(mapIt);
return false;
}
//////////////////////////////////////////////////////////////////////////
int CSysClass::GetInstanceID(void *pointer) {
InstanceMap::iterator mapIt = m_InstanceMap.find(pointer);
if (mapIt == m_InstanceMap.end()) return -1;
else return (*mapIt).second->GetID();
}
//////////////////////////////////////////////////////////////////////////
void *CSysClass::IDToPointer(int savedID) {
//slow
Instances::iterator it;
for (it = m_Instances.begin(); it != m_Instances.end(); ++it) {
if ((*it)->GetSavedID() == savedID) return (*it)->GetInstance();
}
return NULL;
}
//////////////////////////////////////////////////////////////////////////
int CSysClass::GetNumInstances() {
return m_Instances.size();
}
//////////////////////////////////////////////////////////////////////////
void CSysClass::Dump(FILE *stream) {
fprintf(stream, "%03d %c %-20s instances: %d\n", m_ID, m_Persistent ? 'p' : ' ', m_Name.c_str(), GetNumInstances());
}
//////////////////////////////////////////////////////////////////////////
void CSysClass::SaveTable(CBGame *Game, CBPersistMgr *PersistMgr) {
PersistMgr->PutString(m_Name.c_str());
PersistMgr->PutDWORD(m_ID);
PersistMgr->PutDWORD(m_Instances.size());
Instances::iterator it;
for (it = m_Instances.begin(); it != m_Instances.end(); ++it) {
PersistMgr->PutDWORD((*it)->GetID());
}
}
//////////////////////////////////////////////////////////////////////////
void CSysClass::LoadTable(CBGame *Game, CBPersistMgr *PersistMgr) {
m_SavedID = PersistMgr->GetDWORD();
int numInstances = PersistMgr->GetDWORD();
for (int i = 0; i < numInstances; i++) {
if (m_Persistent) {
int instId = PersistMgr->GetDWORD();
if (i > 0) {
Game->LOG(0, "Warning: attempting to load multiple instances of persistent class %s (%d)", m_Name.c_str(), numInstances);
continue;
}
Instances::iterator it = m_Instances.begin();
if (it != m_Instances.end()) {
(*it)->SetSavedID(instId);
CSysClassRegistry::GetInstance()->AddInstanceToTable((*it), (*it)->GetInstance());
} else Game->LOG(0, "Warning: instance %d of persistent class %s not found", i, m_Name.c_str());
}
// normal instances, create empty objects
else {
void *emptyObject = m_Build();
AddInstance(emptyObject, CSysClassRegistry::GetInstance()->GetNextID(), PersistMgr->GetDWORD());
}
}
}
//////////////////////////////////////////////////////////////////////////
void CSysClass::SaveInstances(CBGame *Game, CBPersistMgr *PersistMgr) {
Instances::iterator it;
for (it = m_Instances.begin(); it != m_Instances.end(); ++it) {
// write instace header
PersistMgr->PutDWORD(m_ID);
PersistMgr->PutDWORD((*it)->GetID());
m_Load((*it)->GetInstance(), PersistMgr);
}
}
//////////////////////////////////////////////////////////////////////////
void CSysClass::LoadInstance(void *instance, CBPersistMgr *PersistMgr) {
m_Load(instance, PersistMgr);
}
//////////////////////////////////////////////////////////////////////////
void CSysClass::ResetSavedIDs() {
Instances::iterator it;
for (it = m_Instances.begin(); it != m_Instances.end(); ++it) {
(*it)->SetSavedID(-1);
}
}
//////////////////////////////////////////////////////////////////////////
void CSysClass::InstanceCallback(SYS_INSTANCE_CALLBACK lpCallback, void *lpData) {
Instances::iterator it;
for (it = m_Instances.begin(); it != m_Instances.end(); ++it) {
lpCallback((*it)->GetInstance(), lpData);
}
}
} // end of namespace WinterMute
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