function.h

/* 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 MEDIASTATION_MEDIASCRIPT_FUNCTION_H
#define MEDIASTATION_MEDIASCRIPT_FUNCTION_H

#include "common/array.h"
#include "common/hashmap.h"

#include "mediastation/clients.h"
#include "mediastation/datafile.h"
#include "mediastation/mediascript/codechunk.h"

namespace MediaStation {

enum Platform {
    kPlatformParamTokenUnknown = 0,
    kPlatformParamTokenWindows = 0x76D,
    kPlatformParakTokenMacintosh = 0x76E
};

class ScriptFunction {
public:
    ScriptFunction(Chunk &chunk);
    ~ScriptFunction();

    ScriptValue execute(Common::Array<ScriptValue> &args);

    uint _contextId = 0;
    uint _id = 0;

private:
    byte *_bytecodeBuffer = nullptr;
    uint32 _bytecodeSize = 0;
};

class FunctionManager : public ParameterClient {
public:
    FunctionManager() {};
    virtual ~FunctionManager();

    virtual bool attemptToReadFromStream(Chunk &chunk, uint sectionType) override;
    ScriptValue call(uint functionId, Common::Array<ScriptValue> &args);
    void deleteFunctionsForContext(uint contextId);

    uint _scriptBlockCallDepth = 0;

private:
    Common::HashMap<uint, ScriptFunction *> _functions;

    void script_GetPlatform(Common::Array<ScriptValue> &args, ScriptValue &returnValue);
    void script_Random(Common::Array<ScriptValue> &args, ScriptValue &returnValue);
    void script_TimeOfDay(Common::Array<ScriptValue> &args, ScriptValue &returnValue);
    void script_SquareRoot(Common::Array<ScriptValue> &args, ScriptValue &returnValue);
    void script_GetUniqueRandom(Common::Array<ScriptValue> &args, ScriptValue &returnValue);
    void script_CurrentRunTime(Common::Array<ScriptValue> &args, ScriptValue &returnValue);
    void script_SetGammaCorrection(Common::Array<ScriptValue> &args, ScriptValue &returnValue);
    void script_GetDefaultGammaCorrection(Common::Array<ScriptValue> &args, ScriptValue &returnValue);
    void script_GetCurrentGammaCorrection(Common::Array<ScriptValue> &args, ScriptValue &returnValue);
    void script_SetAudioVolume(Common::Array<ScriptValue> &args, ScriptValue &returnValue);
    void script_GetAudioVolume(Common::Array<ScriptValue> &args, ScriptValue &returnValue);
    void script_SystemLanguagePreference(Common::Array<ScriptValue> &args, ScriptValue &returnValue);
    void script_SetRegistry(Common::Array<ScriptValue> &args, ScriptValue &returnValue);
    void script_GetRegistry(Common::Array<ScriptValue> &args, ScriptValue &returnValue);
    void script_SetProfile(Common::Array<ScriptValue> &args, ScriptValue &returnValue);
    void script_DebugPrint(Common::Array<ScriptValue> &args, ScriptValue &returnValue);

    // 101 Dalmatians.
    void script_MazeGenerate(Common::Array<ScriptValue> &args, ScriptValue &returnValue);
    void script_MazeApplyMoveMask(Common::Array<ScriptValue> &args, ScriptValue &returnValue);
    void script_MazeSolve(Common::Array<ScriptValue> &args, ScriptValue &returnValue);
    void script_BeginTimedInterval(Common::Array<ScriptValue> &args, ScriptValue &returnValue);
    void script_EndTimedInterval(Common::Array<ScriptValue> &args, ScriptValue &returnValue);

    // Hercules.
    void script_Checkers(Common::Array<ScriptValue> &args, ScriptValue &returnValue);

    // IBM/Crayola.
    void script_Drawing(Common::Array<ScriptValue> &args, ScriptValue &returnValue);
};

} // End of namespace MediaStation

#endif