snail.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/>.
 *
 */

/*
 * This code is based on original Soltys source code
 * Copyright (c) 1994-1995 Janusz B. Wisniewski and L.K. Avalon
 */

#ifndef CGE_COMMANDHANDLER_H
#define CGE_COMMANDHANDLER_H

#include "cge/cge.h"

namespace CGE {

#define kCommandFrameRate 80
#define kCommandFrameDelay (1000 / kCommandFrameRate)
#define kDressed 3

enum CommandType {
    kCmdLabel,  kCmdPause,  kCmdWait,        kCmdLevel,       kCmdHide,
    kCmdSay,    kCmdInf,    kCmdTime,        kCmdCave,        kCmdKill,
    kCmdRSeq,   kCmdSeq,    kCmdSend,        kCmdSwap,        kCmdKeep,
    kCmdGive,   kCmdIf,     kCmdGame,        kCmdSetX0,       kCmdSetY0,
    kCmdSlave,  kCmdSetXY,  kCmdRelX,        kCmdRelY,        kCmdRelZ,
    kCmdSetX,   kCmdSetY,   kCmdSetZ,        kCmdTrans,       kCmdPort,
    kCmdNext,   kCmdNNext,  kCmdTNext,       kCmdRNNext,      kCmdRTNext,
    kCmdRMNear, kCmdRmTake, kCmdFlag,        kCmdSetRef,      kCmdBackPt,
    kCmdFlash,  kCmdLight,  kCmdSetVBarrier, kCmdSetHBarrier, kCmdWalk,
    kCmdReach,  kCmdCover,  kCmdUncover,     kCmdClear,       kCmdTalk,
    kCmdMouse,  kCmdSound,  kCmdCount,       kCmdExec,        kCmdStep,
    kCmdZTrim,  kCmdGhost
};

class CommandHandler {
public:
    struct Command {
        CommandType _commandType;
        int _ref;
        int _val;
        void *_spritePtr;
        CallbackType _cbType;
    } *_commandList;
    static const char *_commandText[];
    bool _talkEnable;

    CommandHandler(CGEEngine *vm, bool turbo);
    ~CommandHandler();
    void runCommand();
    void addCommand(CommandType com, int ref, int val, void *ptr);
    void addCallback(CommandType com, int ref, int val, CallbackType cbType);
    void insertCommand(CommandType com, int ref, int val, void *ptr);
    bool idle();
    void reset();
private:
    CGEEngine *_vm;
    bool _turbo;
    uint8 _head;
    uint8 _tail;
    bool _busy;
    bool _textDelay;
    uint32 _timerExpiry;
};

} // End of namespace CGE

#endif