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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.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#ifndef LASTEXPRESS_SAVEPOINT_H
+#define LASTEXPRESS_SAVEPOINT_H
+
+#include "lastexpress/entities/entity.h"
+
+#include "lastexpress/helpers.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::printf("{ %s - %d - %s - %s }", ENTITY_NAME(entity1), action, ENTITY_NAME(entity2), param.charValue);
+ }
+};
+
+class SavePoints : Common::Serializable {
+private:
+ typedef Common::Functor1<const SavePoint&, void> Callback;
+
+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::printf(" { %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, Entity::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();
+
+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