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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 RIVEN_SCRIPTS_H
#define RIVEN_SCRIPTS_H
#include "common/str-array.h"
#include "common/ptr.h"
#include "common/textconsole.h"
#define DECLARE_OPCODE(x) void x(uint16 op, uint16 argc, uint16 *argv)
namespace Common {
class ReadStream;
}
namespace Mohawk {
// Script Types
enum {
kMouseDownScript = 0,
kMouseDragScript = 1,
kMouseUpScript = 2,
kMouseEnterScript = 3,
kMouseInsideScript = 4,
kMouseLeaveScript = 5,
kCardLoadScript = 6,
kCardLeaveScript = 7,
kCardEnterScript = 9,
kCardUpdateScript = 10
};
class MohawkEngine_Riven;
class RivenCommand;
class RivenScript;
typedef Common::SharedPtr<RivenScript> RivenScriptPtr;
typedef Common::SharedPtr<RivenCommand> RivenCommandPtr;
/**
* Scripts in Riven are a list of Commands
*
* This class should only be used through the RivenScriptPtr
* type to ensure the underlying memory is not freed when changing card.
*/
class RivenScript {
public:
RivenScript();
~RivenScript();
/** Append a command to the script */
void addCommand(RivenCommandPtr command);
/** True if the script does not contain any command */
bool empty() const;
/**
* Run the script
*
* Script execution must go through the ScriptManager,
* this method should not be called directly.
*/
void run();
/** Print script details to the standard output */
void dumpScript(byte tabs);
/** Stop the script after the current command */
void stopRunning() { _continueRunning = false; }
/** Append the commands of the other script to this script */
RivenScript &operator+=(const RivenScript &other);
/** Get a caption for a script type */
static const char *getTypeName(uint16 type);
private:
Common::Array<RivenCommandPtr> _commands;
bool _continueRunning;
};
/** Append the commands of the rhs Script to those of the lhs Script */
RivenScriptPtr &operator+=(RivenScriptPtr &lhs, const RivenScriptPtr &rhs);
/**
* A script and its type
*
* The type defines when the script should be run
*/
struct RivenTypedScript {
uint16 type;
RivenScriptPtr script;
};
typedef Common::Array<RivenTypedScript> RivenScriptList;
/**
* Script manager
*
* Reads scripts from raw data.
* Can run scripts immediately, or store them for future execution.
*/
class RivenScriptManager {
public:
RivenScriptManager(MohawkEngine_Riven *vm);
~RivenScriptManager();
/** Read a single script from a stream */
RivenScriptPtr readScript(Common::ReadStream *stream);
/** Create a script from the caller provided arguments containing raw data */
RivenScriptPtr createScriptFromData(uint16 commandCount, ...);
/**
* Create a script with a single user provided command
*
* The script takes ownership of the command.
*/
RivenScriptPtr createScriptWithCommand(RivenCommand *command);
/** Read a list of typed scripts from a stream */
RivenScriptList readScripts(Common::ReadStream *stream);
/** Run a script */
void runScript(const RivenScriptPtr &script, bool queue);
/** Are scripts running in the background */
bool hasQueuedScripts() const;
/** Run queued scripts */
void runQueuedScripts();
bool runningQueuedScripts() const;
void stopAllScripts();
struct StoredMovieOpcode {
RivenScriptPtr script;
uint32 time;
uint16 id;
};
uint16 getStoredMovieOpcodeID() { return _storedMovieOpcode.id; }
uint32 getStoredMovieOpcodeTime() { return _storedMovieOpcode.time; }
void setStoredMovieOpcode(const StoredMovieOpcode &op);
void runStoredMovieOpcode();
void clearStoredMovieOpcode();
private:
MohawkEngine_Riven *_vm;
Common::Array<RivenScriptPtr> _queue;
bool _runningQueuedScripts;
StoredMovieOpcode _storedMovieOpcode;
RivenCommandPtr readCommand(Common::ReadStream *stream);
};
/**
* An abstract command
*
* Commands are unit operations part of a script
*/
class RivenCommand {
public:
RivenCommand(MohawkEngine_Riven *vm);
virtual ~RivenCommand();
/** Print details about the command to standard output */
virtual void dump(byte tabs) = 0;
/** Execute the command */
virtual void execute() = 0;
protected:
MohawkEngine_Riven *_vm;
};
/**
* A simple Command
*
* Simple commands have a type and a list of arguments.
* The operation to be executed when running the command
* depends on the type.
*/
class RivenSimpleCommand : public RivenCommand {
public:
static RivenSimpleCommand *createFromStream(MohawkEngine_Riven *vm, int type, Common::ReadStream *stream);
virtual ~RivenSimpleCommand();
// RivenCommand API
virtual void dump(byte tabs) override;
virtual void execute() override;
private:
typedef Common::Array<uint16> ArgumentArray;
typedef void (RivenSimpleCommand::*OpcodeProcRiven)(uint16 op, uint16 argc, uint16 *argv);
struct RivenOpcode {
OpcodeProcRiven proc;
const char *desc;
};
RivenSimpleCommand(MohawkEngine_Riven *vm, int type, const ArgumentArray &arguments);
void setupOpcodes();
Common::String describe() const;
DECLARE_OPCODE(empty) { warning ("Unknown Opcode %04x", op); }
// Opcodes
DECLARE_OPCODE(drawBitmap);
DECLARE_OPCODE(switchCard);
DECLARE_OPCODE(playScriptSLST);
DECLARE_OPCODE(playSound);
DECLARE_OPCODE(setVariable);
DECLARE_OPCODE(enableHotspot);
DECLARE_OPCODE(disableHotspot);
DECLARE_OPCODE(stopSound);
DECLARE_OPCODE(changeCursor);
DECLARE_OPCODE(delay);
DECLARE_OPCODE(runExternalCommand);
DECLARE_OPCODE(transition);
DECLARE_OPCODE(refreshCard);
DECLARE_OPCODE(beginScreenUpdate);
DECLARE_OPCODE(applyScreenUpdate);
DECLARE_OPCODE(incrementVariable);
DECLARE_OPCODE(disableMovie);
DECLARE_OPCODE(disableAllMovies);
DECLARE_OPCODE(enableMovie);
DECLARE_OPCODE(playMovieBlocking);
DECLARE_OPCODE(playMovie);
DECLARE_OPCODE(stopMovie);
DECLARE_OPCODE(unk_36);
DECLARE_OPCODE(fadeAmbientSounds);
DECLARE_OPCODE(storeMovieOpcode);
DECLARE_OPCODE(activatePLST);
DECLARE_OPCODE(activateSLST);
DECLARE_OPCODE(activateMLSTAndPlay);
DECLARE_OPCODE(activateBLST);
DECLARE_OPCODE(activateFLST);
DECLARE_OPCODE(zipMode);
DECLARE_OPCODE(activateMLST);
const RivenOpcode *_opcodes;
int _type;
ArgumentArray _arguments;
};
/**
* A switch branch command
*
* Switch commands have a variable id and a list of branches.
* Each branch associates a value to a script.
* The branch matching the variable's value is executed,
* if not found an optional default branch can be executed.
*/
class RivenSwitchCommand : public RivenCommand {
public:
static RivenSwitchCommand *createFromStream(MohawkEngine_Riven *vm, int type, Common::ReadStream *stream);
virtual ~RivenSwitchCommand();
// RivenCommand API
virtual void dump(byte tabs) override;
virtual void execute() override;
private:
RivenSwitchCommand(MohawkEngine_Riven *vm);
struct Branch {
uint16 value;
RivenScriptPtr script;
};
uint16 _variableId;
Common::Array<Branch> _branches;
};
/**
* A command to go to a different stack
*
* Changes the active stack and sets the initial card.
* The stack can be specified by global id or name id in the initial stack.
* The destination card must be specified by global id.
*/
class RivenStackChangeCommand : public RivenCommand {
public:
RivenStackChangeCommand(MohawkEngine_Riven *vm, uint16 stackId, uint32 globalCardId, bool byStackId);
static RivenStackChangeCommand *createFromStream(MohawkEngine_Riven *vm, int type, Common::ReadStream *stream);
virtual ~RivenStackChangeCommand();
// RivenCommand API
virtual void dump(byte tabs) override;
virtual void execute() override;
private:
uint16 _stackId;
uint32 _cardId;
bool _byStackId; // Otherwise by stack name id
};
} // End of namespace Mohawk
#undef DECLARE_OPCODE
#endif
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