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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.
*
*/
#ifndef LASTEXPRESS_SAVEPOINT_H
#define LASTEXPRESS_SAVEPOINT_H
#include "lastexpress/helpers.h"
#include "lastexpress/shared.h"
#include "common/array.h"
#include "common/list.h"
#include "common/serializer.h"
/*
Savepoint format
----------------
Save point: max: 127 - FIFO list (ie. goes back and overwrites first save point when full)
uint32 {4} - Entity 1
uint32 {4} - Action
uint32 {4} - Entity 2
uint32 {4} - Parameter
Save point Data
uint32 {4} - Entity 1
uint32 {4} - Action
uint32 {4} - Entity 2
uint32 {4} - function pointer to ??
*/
namespace LastExpress {
class LastExpressEngine;
struct SavePoint {
EntityIndex entity1;
ActionIndex action;
EntityIndex entity2;
union {
uint32 intValue;
char charValue[5];
} param;
SavePoint() {
entity1 = kEntityPlayer;
action = kActionNone;
entity2 = kEntityPlayer;
param.intValue = 0;
}
Common::String toString() {
return Common::String::format("{ %s - %d - %s - %s }", ENTITY_NAME(entity1), action, ENTITY_NAME(entity2), param.charValue);
}
};
typedef Common::Functor1<const SavePoint&, void> Callback;
class SavePoints : Common::Serializable {
public:
struct SavePointData {
EntityIndex entity1;
ActionIndex action;
EntityIndex entity2;
uint32 param;
SavePointData() {
entity1 = kEntityPlayer;
action = kActionNone;
entity2 = kEntityPlayer;
param = 0;
}
Common::String toString() {
return Common::String::format(" { %s - %d - %s - %d }", ENTITY_NAME(entity1), action, ENTITY_NAME(entity2), param);
}
};
SavePoints(LastExpressEngine *engine);
~SavePoints();
// Savepoints
void push(EntityIndex entity2, EntityIndex entity1, ActionIndex action, uint32 param = 0);
void push(EntityIndex entity2, EntityIndex entity1, ActionIndex action, const char *param);
void pushAll(EntityIndex entity, ActionIndex action, uint32 param = 0);
void process();
void reset();
// Data
void addData(EntityIndex entity, ActionIndex action, uint32 param);
// Callbacks
void setCallback(EntityIndex index, Callback *callback);
Callback *getCallback(EntityIndex entity) const;
void call(EntityIndex entity2, EntityIndex entity1, ActionIndex action, uint32 param = 0) const;
void call(EntityIndex entity2, EntityIndex entity1, ActionIndex action, const char *param) const;
void callAndProcess();
// Serializable
void saveLoadWithSerializer(Common::Serializer &s);
/**
* Convert this object into a string representation.
*
* @return A string representation of this object.
*/
Common::String toString();
uint32 count() { return _savepoints.size(); }
private:
static const uint32 _savePointsMaxSize = 128;
LastExpressEngine *_engine;
Common::List<SavePoint> _savepoints; ///< could be a queue, but we need to be able to iterate on the items
Common::Array<SavePointData> _data;
Callback *_callbacks[40];
SavePoint pop();
bool updateEntityFromData(const SavePoint &point);
};
} // End of namespace LastExpress
#endif // LASTEXPRESS_SAVEPOINT_H
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