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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 ZVISION_SCRIPT_MANAGER_H
#define ZVISION_SCRIPT_MANAGER_H
#include "common/hashmap.h"
#include "common/stack.h"
#include "zvision/puzzle.h"
#include "zvision/control.h"
namespace Common {
class String;
class SeekableReadStream;
}
namespace ZVision {
class ZVision;
class ActionNode;
struct Location {
char world;
char room;
char node;
char view;
uint32 offset;
};
class ScriptManager {
public:
ScriptManager(ZVision *engine);
private:
ZVision *_engine;
/**
* Holds the global state variable. Do NOT directly modify this. Use the accessors and
* mutators getStateValue() and setStateValue(). This ensures that Puzzles that reference a
* particular state key are checked after the key is modified.
*/
Common::HashMap<uint32, uint> _globalState;
/** Holds the currently active ActionNodes */
Common::List<Common::SharedPtr<ActionNode> > _activeNodes;
/** References _globalState keys to Puzzles */
Common::HashMap<uint32, Common::Array<Puzzle *> > _referenceTable;
/** Holds the Puzzles that should be checked this frame */
Common::Stack<Puzzle *> _puzzlesToCheck;
/** Holds the currently active puzzles */
Common::List<Puzzle> _activePuzzles;
/** Holds the global puzzles */
Common::List<Puzzle>_globalPuzzles;
/** Holds the currently active controls */
Common::HashMap<uint32, Control *> _activeControls;
Location _nextLocation;
bool _changeLocation;
public:
void initialize();
void update(uint deltaTimeMillis);
uint getStateValue(uint32 key);
void setStateValue(uint32 key, uint value);
void addToStateValue(uint32 key, uint valueToAdd);
void addActionNode(const Common::SharedPtr<ActionNode> &node);
void changeLocation(char world, char room, char node, char view, uint32 offset);
private:
void createReferenceTable();
void changeLocationIntern();
void updateNodes(uint deltaTimeMillis);
void checkPuzzleCriteria();
/**
* Parses a script file into triggers and events
*
* @param fileName Name of the .scr file
* @param isGlobal Are the puzzles included in the file global (true). AKA, the won't be purged during location changes
*/
void parseScrFile(const Common::String &fileName, bool isGlobal = false);
/**
* Parses the stream into a Puzzle object
* Helper method for parseScrFile.
*
* @param puzzle The object to store what is parsed
* @param stream Scr file stream
*/
void parsePuzzle(Puzzle &puzzle, Common::SeekableReadStream &stream);
/**
* Parses the stream into a Criteria object
* Helper method for parsePuzzle.
*
* @param criteria Pointer to the Criteria object to fill
* @param stream Scr file stream
* @return Whether any criteria were read
*/
bool parseCriteria(Puzzle::Criteria *criteria, Common::SeekableReadStream &stream) const;
/**
* Parses the stream into a ResultAction objects
* Helper method for parsePuzzle.
*
* @param stream Scr file stream
* @param actionList The list where the results will be added
* @return Created Results object
*/
void parseResults(Common::SeekableReadStream &stream, Common::List<Common::SharedPtr<ResultAction> > &actionList) const;
/**
* Helper method for parsePuzzle. Parses the stream into a bitwise or of the StateFlags enum
*
* @param stream Scr file stream
* @return Bitwise OR of all the flags set within the puzzle
*/
uint parseFlags(Common::SeekableReadStream &stream) const;
/**
* Helper method for parseScrFile. Parses the stream into a Control object
*
* @param line The line initially read
* @param stream Scr file stream
*/
void parseControl(Common::String &line, Common::SeekableReadStream &stream);
};
} // End of namespace ZVision
#endif
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