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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 SCI_ENGINE_MESSAGE_H
#define SCI_ENGINE_MESSAGE_H
#include "sci/resource.h"
#include "sci/engine/vm_types.h"
#include "common/stack.h"
namespace Sci {
class SegManager;
struct MessageRecord;
struct MessageTuple {
byte noun;
byte verb;
byte cond;
byte seq;
MessageTuple(byte noun_ = 0, byte verb_ = 0, byte cond_ = 0, byte seq_ = 1)
: noun(noun_), verb(verb_), cond(cond_), seq(seq_) { }
};
class CursorStack : public Common::Stack<MessageTuple> {
public:
void init(int module, MessageTuple t) {
clear();
push(t);
_module = module;
}
int getModule() const { return _module; }
private:
int _module;
};
typedef Common::Stack<CursorStack> CursorStackStack;
class MessageState {
public:
MessageState(SegManager *segMan) : _segMan(segMan), _lastReturnedModule(0) { }
int getMessage(int module, MessageTuple &t, reg_t buf);
int nextMessage(reg_t buf);
int messageSize(int module, MessageTuple &t);
bool messageRef(int module, const MessageTuple &t, MessageTuple &ref);
void lastQuery(int &module, MessageTuple &tuple);
void pushCursorStack();
void popCursorStack();
private:
bool getRecord(CursorStack &stack, bool recurse, MessageRecord &record);
void outputString(reg_t buf, const Common::String &str);
Common::String processString(const char *s);
int hexDigitToInt(char h);
bool stringHex(Common::String &outStr, const Common::String &inStr, uint &index);
bool stringLit(Common::String &outStr, const Common::String &inStr, uint &index);
bool stringStage(Common::String &outStr, const Common::String &inStr, uint &index);
CursorStack _cursorStack;
CursorStackStack _cursorStackStack;
MessageTuple _lastReturned;
int _lastReturnedModule;
SegManager *_segMan;
};
} // End of namespace Sci
#endif // SCI_ENGINE_MESSAGE_H
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