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engines/qdengine/minigames/adv/Range.h

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+/* 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;
+	}
+
+	/// Корректен ли интервал (нет - в случае когда minimum > maximum);
+	bool is_valid() const {
+		return _min <= _max;
+	}
+
+	/// Включает ли отрезок (закрытый интервал) точку \c _value.
+	bool include(float value) const {
+		return (_min <= value) && (_max >= value);
+	}
+	/// Включает ли интервал в себя \c _range.
+	bool include(const Rangef& range) const {
+		return _min <= range._min && _max >= range._max;
+	}
+
+	/// Возвращает пересечение интервала *this и \c _range.
+	Rangef intersection(const Rangef& range);
+
+	/// Возвращает \c _value в пределах интервала [minimum, maximum].
+	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;
+	}
+
+	/// Корректен ли интервал (нет - в случае когда minimum > maximum);
+	bool is_valid() const {
+		return _min <= _max;
+	}
+
+	/// Включает ли отрезок (закрытый интервал) точку \c _value.
+	bool include(int value) const {
+		return (_min <= value) && (_max >= value);
+	}
+	/// Включает ли интервал в себя \c _range.
+	bool include(const Rangei& range) const {
+		return _min <= range._min && _max >= range._max;
+	}
+
+	/// Возвращает пересечение интервала *this и \c _range.
+	Rangei intersection(const Rangei& range);
+
+	/// Возвращает \c _value в пределах интервала [minimum, maximum].
+	int clip(int &value);
+
+private:
+	int _min;
+	int _max;
+};
+
+} // namespace QDEngine
+
+#endif // QDENGINE_MINIGAMES_ADV_RANGE_H