events.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 Sfinx source code
 * Copyright (c) 1994-1997 Janusz B. Wisniewski and L.K. Avalon
 */

#ifndef CGE2_EVENTS_H
#define CGE2_EVENTS_H

#include "common/events.h"
#include "cge2/talk.h"
#include "cge2/vga13h.h"

namespace CGE2 {

/*----------------- KEYBOARD interface -----------------*/

#define kEventMax   256

enum EventMask {
    kMouseRoll = 1 << 0,
    kMouseLeftDown = 1 << 1,
    kMouseLeftUp = 1 << 2,
    kMouseRightDown = 1 << 3,
    kMouseRightUp = 1 << 4,
    kEventAttn = 1 << 5,
    kMouseMask = (kMouseRoll | kMouseLeftDown | kMouseLeftUp |  kMouseRightDown | kMouseRightUp),
    kEventEsc = 1 << 7
};

class Keyboard {
private:
    CGE2Engine *_vm;
public:
    Sprite *_client;

    void handleAction(Common::Event &event);
    Sprite *setClient(Sprite *spr);

    Keyboard(CGE2Engine *vm);
    ~Keyboard();
};

/*----------------- MOUSE interface -----------------*/

struct CGE2Event {
    uint16 _mask;
    uint16 _x;
    uint16 _y;
    Sprite *_spritePtr;
};

class Mouse : public Sprite {
public:
    V2D _point;
    Sprite *_hold;
    bool _active;
    int _hx;
    int _hy;
    bool _exist;
    int _buttons;
    Sprite *_busy;
    Mouse(CGE2Engine *vm);
    ~Mouse() override;
    void on();
    void off();
    void newMouse(Common::Event &event);
private:
    CGE2Engine *_vm;
};

/*----------------- EventManager interface -----------------*/

class EventManager {
private:
    CGE2Engine *_vm;
    Common::Event _event;
    CGE2Event _eventQueue[kEventMax];
    uint16 _eventQueueHead;
    uint16 _eventQueueTail;

    void handleEvents();
public:
    EventManager(CGE2Engine *vm);
    void poll();
    void clearEvent(Sprite *spr);

    CGE2Event &getNextEvent();
};

} // End of namespace CGE

#endif // #define CGE2_EVENTS_H