142 lines
3.4 KiB
C++
142 lines
3.4 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef QDENGINE_MINIGAMES_ADV_RANGE_H
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#define QDENGINE_MINIGAMES_ADV_RANGE_H
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namespace QDEngine {
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class Rangef {
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public:
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Rangef(float min = 0.f, float max = 0.f)
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: _min(min)
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, _max(max)
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{}
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float minimum() const {
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return _min;
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}
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void setMinimum(float min) {
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_min = min;
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}
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float maximum() const {
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return _max;
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}
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void setMaximum(float max) {
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_max = max;
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}
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void set(float min, float max);
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float length() const {
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return _max - _min;
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}
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float center() const {
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return (_max + _min) / 2.f;
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}
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/// Корректен ли интервал (нет - в случае когда minimum > maximum);
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bool is_valid() const {
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return _min <= _max;
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}
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/// Включает ли отрезок (закрытый интервал) точку \c _value.
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bool include(float value) const {
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return (_min <= value) && (_max >= value);
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}
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/// Включает ли интервал в себя \c _range.
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bool include(const Rangef& range) const {
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return _min <= range._min && _max >= range._max;
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}
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/// Возвращает пересечение интервала *this и \c _range.
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Rangef intersection(const Rangef& range);
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/// Возвращает \c _value в пределах интервала [minimum, maximum].
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float clip(float &value) const;
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private:
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float _min;
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float _max;
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};
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// --------------------- Rangei
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class Rangei {
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public:
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Rangei(int min = 0.f, int max = 0.f)
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: _min(min)
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, _max(max)
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{}
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int minimum() const {
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return _min;
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}
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void setMinimum(int min) {
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_min = min;
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}
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int maximum() const {
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return _max;
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}
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void setMaximum(int max) {
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_max = max;
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}
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void set(int min, int max);
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int length() const {
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return _max - _min;
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}
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int center() const {
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return (_max + _min) / 2;
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}
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/// Корректен ли интервал (нет - в случае когда minimum > maximum);
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bool is_valid() const {
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return _min <= _max;
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}
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/// Включает ли отрезок (закрытый интервал) точку \c _value.
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bool include(int value) const {
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return (_min <= value) && (_max >= value);
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}
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/// Включает ли интервал в себя \c _range.
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bool include(const Rangei& range) const {
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return _min <= range._min && _max >= range._max;
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}
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/// Возвращает пересечение интервала *this и \c _range.
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Rangei intersection(const Rangei& range);
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/// Возвращает \c _value в пределах интервала [minimum, maximum].
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int clip(int &value);
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private:
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int _min;
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int _max;
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};
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} // namespace QDEngine
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#endif // QDENGINE_MINIGAMES_ADV_RANGE_H
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