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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 MYST_SCRIPTS_H
#define MYST_SCRIPTS_H
#include "common/ptr.h"
#include "common/scummsys.h"
#include "common/util.h"
#include "mohawk/myst_state.h"
namespace Mohawk {
typedef Common::Array<uint16> ArgumentsArray;
#define DECLARE_OPCODE(x) void x(uint16 var, const ArgumentsArray &args)
class MohawkEngine_Myst;
class MystArea;
enum MystScriptType {
kMystScriptNone,
kMystScriptNormal,
kMystScriptInit,
kMystScriptExit
};
struct MystScriptEntry {
MystScriptEntry();
MystScriptType type;
uint16 resourceId;
uint16 opcode;
uint16 var;
ArgumentsArray args;
uint16 u1;
};
typedef Common::SharedPtr<Common::Array<MystScriptEntry> > MystScript;
class MystScriptParser {
public:
explicit MystScriptParser(MohawkEngine_Myst *vm);
virtual ~MystScriptParser();
void runScript(MystScript script, MystArea *invokingResource = nullptr);
void runOpcode(uint16 op, uint16 var = 0, const ArgumentsArray &args = ArgumentsArray());
const Common::String getOpcodeDesc(uint16 op);
MystScript readScript(Common::SeekableReadStream *stream, MystScriptType type);
void setInvokingResource(MystArea *resource) { _invokingResource = resource; }
/**
* Is a script is running?
*
* Allows to detect if some inner loop is running instead of the main loop.
*/
bool isScriptRunning() const;
virtual void disablePersistentScripts() = 0;
virtual void runPersistentScripts() = 0;
virtual uint16 getVar(uint16 var);
virtual void toggleVar(uint16 var);
virtual bool setVarValue(uint16 var, uint16 value);
virtual uint16 getMap() { return 0; }
void showMap();
void animatedUpdate(const ArgumentsArray &args, uint16 delay);
void soundWaitStop() const;
// Common opcodes
DECLARE_OPCODE(o_toggleVar);
DECLARE_OPCODE(o_setVar);
DECLARE_OPCODE(o_changeCardSwitch4);
DECLARE_OPCODE(o_changeCardSwitchLtR);
DECLARE_OPCODE(o_changeCardSwitchRtL);
DECLARE_OPCODE(o_takePage);
DECLARE_OPCODE(o_redrawCard);
DECLARE_OPCODE(o_goToDest);
DECLARE_OPCODE(o_goToDestForward);
DECLARE_OPCODE(o_goToDestRight);
DECLARE_OPCODE(o_goToDestLeft);
DECLARE_OPCODE(o_goToDestUp);
DECLARE_OPCODE(o_triggerMovie);
DECLARE_OPCODE(o_toggleVarNoRedraw);
DECLARE_OPCODE(o_drawAreaState);
DECLARE_OPCODE(o_redrawAreaForVar);
DECLARE_OPCODE(o_changeCardDirectional);
DECLARE_OPCODE(o_changeCardPush);
DECLARE_OPCODE(o_changeCardPop);
DECLARE_OPCODE(o_enableAreas);
DECLARE_OPCODE(o_disableAreas);
DECLARE_OPCODE(o_directionalUpdate);
DECLARE_OPCODE(o_toggleAreasActivation);
DECLARE_OPCODE(o_playSound);
DECLARE_OPCODE(o_stopSoundBackground);
DECLARE_OPCODE(o_playSoundBlocking);
DECLARE_OPCODE(o_copyBackBufferToScreen);
DECLARE_OPCODE(o_copyImageToBackBuffer);
DECLARE_OPCODE(o_changeBackgroundSound);
DECLARE_OPCODE(o_soundPlaySwitch);
DECLARE_OPCODE(o_copyImageToScreen);
DECLARE_OPCODE(o_soundResumeBackground);
DECLARE_OPCODE(o_changeCard);
DECLARE_OPCODE(o_drawImageChangeCard);
DECLARE_OPCODE(o_changeMainCursor);
DECLARE_OPCODE(o_hideCursor);
DECLARE_OPCODE(o_showCursor);
DECLARE_OPCODE(o_delay);
DECLARE_OPCODE(o_changeStack);
DECLARE_OPCODE(o_changeCardPlaySoundDirectional);
DECLARE_OPCODE(o_directionalUpdatePlaySound);
DECLARE_OPCODE(o_saveMainCursor);
DECLARE_OPCODE(o_restoreMainCursor);
DECLARE_OPCODE(o_soundWaitStop);
DECLARE_OPCODE(o_exitMap);
// Used in multiple stacks
DECLARE_OPCODE(o_quit);
DECLARE_OPCODE(NOP);
protected:
MohawkEngine_Myst *_vm;
MystGameState::Globals &_globals;
typedef Common::Functor2<uint16, const ArgumentsArray &, void> OpcodeProcMyst;
#define REGISTER_OPCODE(op, cls, method) \
registerOpcode( \
op, #method, new Common::Functor2Mem<uint16, const ArgumentsArray &, void, cls>(this, &cls::method) \
)
#define OVERRIDE_OPCODE(op, cls, method) \
overrideOpcode( \
op, #method, new Common::Functor2Mem<uint16, const ArgumentsArray &, void, cls>(this, &cls::method) \
)
void registerOpcode(uint16 op, const char *name, OpcodeProcMyst *command);
void overrideOpcode(uint16 op, const char *name, OpcodeProcMyst *command);
uint16 _savedCardId;
uint16 _savedMapCardId;
uint16 _savedCursorId;
int16 _tempVar; // Generic temp var used by the scripts
uint32 _startTime; // Generic start time used by the scripts
static const uint8 _stackMap[];
static const uint16 _startCard[];
void setupCommonOpcodes();
template<class T>
T *getInvokingResource() const;
private:
struct MystOpcode {
MystOpcode(uint16 o, OpcodeProcMyst *p, const char *d) : op(o), proc(p), desc(d) {}
uint16 op;
Common::SharedPtr<OpcodeProcMyst> proc;
const char *desc;
};
Common::Array<MystOpcode> _opcodes;
MystArea *_invokingResource;
int32 _scriptNestingLevel;
Common::String describeCommand(const MystOpcode &command, uint16 var, const ArgumentsArray &args);
};
template<class T>
T *MystScriptParser::getInvokingResource() const {
T *resource = dynamic_cast<T *>(_invokingResource);
if (!resource) {
error("Invoking resource has unexpected type");
}
return resource;
}
} // End of namespace Mohawk
#undef DECLARE_OPCODE
#endif
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