mirror of
https://github.com/libretro/scummvm.git
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149 lines
3.9 KiB
C++
149 lines
3.9 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#ifndef LASTEXPRESS_SAVEPOINT_H
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#define LASTEXPRESS_SAVEPOINT_H
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#include "lastexpress/entities/entity.h"
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#include "lastexpress/helpers.h"
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#include "common/array.h"
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#include "common/list.h"
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#include "common/serializer.h"
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/*
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Savepoint format
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----------------
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Save point: max: 127 - FIFO list (ie. goes back and overwrites first save point when full)
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uint32 {4} - Entity 1
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uint32 {4} - Action
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uint32 {4} - Entity 2
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uint32 {4} - Parameter
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Save point Data
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uint32 {4} - Entity 1
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uint32 {4} - Action
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uint32 {4} - Entity 2
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uint32 {4} - function pointer to ??
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*/
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namespace LastExpress {
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class LastExpressEngine;
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struct SavePoint {
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EntityIndex entity1;
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ActionIndex action;
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EntityIndex entity2;
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union {
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uint32 intValue;
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char charValue[5];
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} param;
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SavePoint() {
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entity1 = kEntityPlayer;
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action = kActionNone;
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entity2 = kEntityPlayer;
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param.intValue = 0;
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}
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Common::String toString() {
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return Common::String::format("{ %s - %d - %s - %s }", ENTITY_NAME(entity1), action, ENTITY_NAME(entity2), param.charValue);
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}
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};
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class SavePoints : Common::Serializable {
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private:
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typedef Common::Functor1<const SavePoint&, void> Callback;
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public:
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struct SavePointData {
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EntityIndex entity1;
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ActionIndex action;
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EntityIndex entity2;
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uint32 param;
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SavePointData() {
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entity1 = kEntityPlayer;
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action = kActionNone;
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entity2 = kEntityPlayer;
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param = 0;
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}
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Common::String toString() {
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return Common::String::format(" { %s - %d - %s - %d }", ENTITY_NAME(entity1), action, ENTITY_NAME(entity2), param);
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}
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};
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SavePoints(LastExpressEngine *engine);
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~SavePoints();
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// Savepoints
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void push(EntityIndex entity2, EntityIndex entity1, ActionIndex action, uint32 param = 0);
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void push(EntityIndex entity2, EntityIndex entity1, ActionIndex action, const char *param);
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void pushAll(EntityIndex entity, ActionIndex action, uint32 param = 0);
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void process();
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void reset();
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// Data
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void addData(EntityIndex entity, ActionIndex action, uint32 param);
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// Callbacks
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void setCallback(EntityIndex index, Entity::Callback *callback);
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Callback *getCallback(EntityIndex entity) const;
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void call(EntityIndex entity2, EntityIndex entity1, ActionIndex action, uint32 param = 0) const;
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void call(EntityIndex entity2, EntityIndex entity1, ActionIndex action, const char *param) const;
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void callAndProcess();
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// Serializable
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void saveLoadWithSerializer(Common::Serializer &s);
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/**
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* Convert this object into a string representation.
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*
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* @return A string representation of this object.
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*/
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Common::String toString();
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uint32 count() { return _savepoints.size(); }
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private:
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static const uint32 _savePointsMaxSize = 128;
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LastExpressEngine *_engine;
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Common::List<SavePoint> _savepoints; ///< could be a queue, but we need to be able to iterate on the items
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Common::Array<SavePointData> _data;
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Callback *_callbacks[40];
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SavePoint pop();
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bool updateEntityFromData(const SavePoint &point);
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};
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} // End of namespace LastExpress
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#endif // LASTEXPRESS_SAVEPOINT_H
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