pressuretracker.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.
 *
 * Additional copyright for this file:
 * Copyright (C) 1995-1997 Presto Studios, Inc.
 *
 * 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 PEGASUS_NEIGHBORHOOD_NORAD_PRESSURETRACKER_H
#define PEGASUS_NEIGHBORHOOD_NORAD_PRESSURETRACKER_H

#include "pegasus/input.h"

namespace Pegasus {

// This class assumes that the globe movie is built at 15 frames per second with a
// time scale of 600, yielding 40 time unit per frame.

enum PressureTrackDirection {
    kTrackPressureUp,
    kTrackPressureDown
};

static const int kPressureDoorTrackInterval = 45;

class PressureDoor;
class Sprite;

class PressureTracker : public Tracker {
public:
    PressureTracker(PressureDoor *);
    ~PressureTracker() override {}

    void setTrackParameters(const Hotspot *, Sprite *);
    void continueTracking(const Input &) override;
    void startTracking(const Input &) override;
    void stopTracking(const Input &) override;
    void activateHotspots() override;
    bool stopTrackingInput(const Input &) override;

protected:
    void trackPressure();

    PressureDoor *_pressureDoor;
    const Hotspot *_trackSpot;
    Sprite *_trackButton;
    long _trackTime;
};

} // End of namespace Pegasus

#endif