97 lines
1.8 KiB
C++
97 lines
1.8 KiB
C++
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#include "object.h"
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#include "engines/grim/savegame.h"
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#include "engines/grim/lua/lobject.h"
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namespace Grim {
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typedef Object *(*CreatorFunc)();
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Common::HashMap<Common::String, CreatorFunc> ObjectManager::_creators;
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Object::Object() : _refCount(0) {
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}
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Object::~Object() {
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luaO_resetObject(this); //after climbing the ties rope an ObjectState gets deleted but not removed
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//from the lua's userdata list, resulting in a dangling pointer
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//that breaks the saving. We need to reset to NULL the pointer manually.
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for (Common::List<Pointer *>::iterator i = _pointers.begin(); i != _pointers.end(); ++i) {
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(*i)->resetPointer();
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}
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}
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void Object::save(SaveGame *state) const {
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state->writeLEUint32(_refCount);
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saveState(state);
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}
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bool Object::restore(SaveGame *state) {
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_refCount = state->readLEUint32();
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return restoreState(state);
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}
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void Object::saveState(SaveGame */*state*/) const {
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}
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bool Object::restoreState(SaveGame */*state*/) {
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return false;
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}
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void Object::ref() {
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++_refCount;
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}
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void Object::deref() {
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if (_refCount > 0) {
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--_refCount;
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}
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if (_refCount == 0) {
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_refCount = -1;
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delete this;
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}
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}
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void ObjectManager::saveObject(SaveGame *state, Object *object) {
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const char *str = object->typeName();
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int32 len = strlen(str);
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state->writeLEUint32(len);
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state->write(str, len);
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object->save(state);
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}
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Object *ObjectManager::restoreObject(SaveGame *state) {
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int32 len = state->readLEUint32();
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char *str = new char[len + 1];
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state->read(str, len);
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str[len] = '\0';
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Object *o = newObject(str);
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delete[] str;
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o->restore(state);
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return o;
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}
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Object *ObjectManager::newObject(const char *typeName) {
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Common::String type = typeName;
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if (_creators.contains(type)) {
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CreatorFunc func = _creators.getVal(type);
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Object *o = (func)();
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return o;
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} else {
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warning("Type name \"%s\" not registered", typeName);
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}
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return 0;
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}
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}
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