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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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef DGDS_ADS_H
#define DGDS_ADS_H
#include "dgds/scripts.h"
#include "dgds/ttm.h"
namespace Dgds {
class ADSData : public ScriptParserData {
public:
ADSData() : _maxSegments(0), _scriptDelay(-1), _hitTTMOp0110(false), _hitBranchOp(false),
_gotoTarget(-1), _runningSegmentIdx(0) {
for (int i = 0; i < ARRAYSIZE(_state); i++)
_state[i] = 8;
for (int i = 0; i < ARRAYSIZE(_segments); i++)
_segments[i] = -1;
ARRAYCLEAR(_countdown);
ARRAYCLEAR(_charWhile);
}
Common::Array<Common::String> _scriptNames;
Common::Array<TTMEnviro> _scriptEnvs;
Common::Array<Common::SharedPtr<TTMSeq>> _ttmSeqs; // Pointers as we need to shuffle them but keep _usedSeqs below valid
int _maxSegments;
// TODO: replace these with dynamic arrays - fixed arrays inherited from original.
int _state[80];
int _countdown[80];
// note: originals uses char * but we use offsets into script for less pointers. -1 is nullptr
int32 _segments[80];
int32 _charWhile[80];
Common::Array<Common::SharedPtr<TTMSeq>> _usedSeqs[80];
int32 _scriptDelay;
int32 _gotoTarget;
bool _hitTTMOp0110;
bool _hitBranchOp;
int16 _runningSegmentIdx;
Common::Error syncState(Common::Serializer &s);
};
class ADSInterpreter {
public:
ADSInterpreter(DgdsEngine *vm);
~ADSInterpreter();
bool load(const Common::String &filename);
void unload();
bool run();
int numArgs(uint16 opcode) const;
void segmentOrState(int16 seg, uint16 val);
void segmentSetState(int16 seg, uint16 val);
void setHitTTMOp0110(bool val = true); // TODO: better name for this global?
bool getHitTTMOp0110() const { return _adsData->_hitTTMOp0110; }
void setGotoTarget(int32 target);
int16 getStateForSceneOp(uint16 segnum);
void setScriptDelay(int16 delay) { _adsData->_scriptDelay = delay; }
Common::Error syncState(Common::Serializer &s);
protected:
bool handleOperation(uint16 code, Common::SeekableReadStream *scr);
void handleRandomOp(Common::SeekableReadStream *scr);
bool handleLogicOp(uint16 code, Common::SeekableReadStream *scr);
bool logicOpResult(uint16 code, const TTMEnviro *env, const TTMSeq *seq, uint16 arg);
int16 randomOpGetProportion(uint16 code, Common::SeekableReadStream *scr);
bool playScene();
bool skipToElseOrEndif();
bool skipToEndIf();
bool skipToEndWhile();
bool skipSceneLogicBranch();
Common::SharedPtr<TTMSeq> findTTMSeq(int16 enviro, int16 seq);
TTMEnviro *findTTMEnviro(int16 enviro);
bool runUntilBranchOpOrEnd();
void findUsedSequencesForSegment(int segno);
void findEndOrInitOp();
bool updateSeqTimeAndFrame(const TTMEnviro *env, Common::SharedPtr<TTMSeq> seq);
int getArrIndexOfSegNum(uint16 segnum);
DgdsEngine *_vm;
TTMInterpreter *_ttmInterpreter;
Common::HashMap<Common::String, ADSData> _adsTexts;
ADSData *_adsData;
Common::SharedPtr<TTMSeq> _currentTTMSeq;
};
} // end namespace Dgds
#endif // DGDS_ADS_H
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