Range.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 QDENGINE_MINIGAMES_ADV_RANGE_H
#define QDENGINE_MINIGAMES_ADV_RANGE_H

namespace QDEngine {

class Rangef {
public:
    Rangef(float min = 0.f, float max = 0.f)
        : _min(min)
        , _max(max)
    {}

    float minimum() const {
        return _min;
    }
    void setMinimum(float min) {
        _min = min;
    }

    float maximum() const {
        return _max;
    }
    void setMaximum(float max) {
        _max = max;
    }

    void set(float min, float max);

    float length() const {
        return _max - _min;
    }
    float center() const {
        return (_max + _min) / 2.f;
    }

    bool is_valid() const {
        return _min <= _max;
    }

    bool include(float value) const {
        return (_min <= value) && (_max >= value);
    }
    bool include(const Rangef& range) const {
        return _min <= range._min && _max >= range._max;
    }

    Rangef intersection(const Rangef& range);

    float clip(float &value) const;

private:
    float _min;
    float _max;
};

// --------------------- Rangei

class Rangei {
public:
    Rangei(int min = 0.f, int max = 0.f)
        : _min(min)
        , _max(max)
    {}

    int minimum() const {
        return _min;
    }
    void setMinimum(int min) {
        _min = min;
    }

    int maximum() const {
        return _max;
    }
    void setMaximum(int max) {
        _max = max;
    }

    void set(int min, int max);

    int length() const {
        return _max - _min;
    }
    int center() const {
        return (_max + _min) / 2;
    }

    bool is_valid() const {
        return _min <= _max;
    }

    bool include(int value) const {
        return (_min <= value) && (_max >= value);
    }
    bool include(const Rangei& range) const {
        return _min <= range._min && _max >= range._max;
    }

    Rangei intersection(const Rangei& range);

    int clip(int &value);

private:
    int _min;
    int _max;
};

} // namespace QDEngine

#endif // QDENGINE_MINIGAMES_ADV_RANGE_H