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/>.
 *
 */

#ifndef MADS_EVENTS_H
#define MADS_EVENTS_H

#include "common/scummsys.h"
#include "common/events.h"
#include "common/stack.h"
#include "mads/nebular/core/assets.h"
#include "mads/nebular/core/sprites.h"

namespace MADS {
namespace Nebular {

enum CursorType {
    CURSOR_NONE = 0, CURSOR_ARROW = 1, CURSOR_WAIT = 2, CURSOR_GO_DOWN = 3,
    CURSOR_GO_UP = 4, CURSOR_GO_LEFT = 5, CURSOR_GO_RIGHT = 6
};

#define GAME_FRAME_RATE 50
#define GAME_FRAME_TIME (1000 / GAME_FRAME_RATE)

class RexNebularEngine;

class EventTarget {
public:
    virtual ~EventTarget() {
    }
    virtual bool onEvent(Common::Event &event) {
        return false;
    }
};

class EventsManager {
private:
    RexNebularEngine *_vm;
    uint32 _frameCounter;
    uint32 _priorFrameTime;
    Common::Point _mousePos;
    Common::Point _currentPos;
    EventTarget *_eventTarget;

    void changeCursor();
public:
    SpriteAsset *_cursorSprites;
    CursorType _cursorId;
    CursorType _newCursorId;
    bool _mouseClicked;
    bool _mouseReleased;
    byte _mouseButtons;
    bool _rightMousePressed;
    int _mouseStatus;
    int _strokeGoing;
    int _mouseStatusCopy;
    bool _mouseMoved;
    Common::Stack<Common::KeyState> _pendingKeys;
    Common::Stack<Common::CustomEventType> _pendingActions;
public:
    EventsManager(RexNebularEngine *vm);

    ~EventsManager();

    void loadCursors(const Common::Path &spritesName);

    void setCursor(CursorType cursorId);

    void setCursor2(CursorType cursorId);

    void showCursor();

    void hideCursor();

    bool isCursorVisible();

    void waitCursor();

    void freeCursors();

    void pollEvents();

    void setEventTarget(EventTarget *target) {
        _eventTarget = target;
    }

    Common::Point mousePos() const {
        return _mousePos;
    }

    Common::Point currentPos() const {
        return _currentPos;
    }

    void delay(int amount);

    void waitForNextFrame();

    bool checkForNextFrameCounter();

    uint32 getFrameCounter() const {
        return _frameCounter;
    }

    void initVars();

    void clearEvents();

    bool isKeyPressed() const {
        return !_pendingKeys.empty();
    }

    bool isActionTriggered() const {
        return !_pendingActions.empty();
    }

    Common::KeyState getKey() {
        return _pendingKeys.pop();
    }

    Common::CustomEventType getAction() {
        return _pendingActions.pop();
    }
};

} // namespace Nebular
} // namespace MADS

#endif