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engines/titanic/star_control/fpoint.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 TITANIC_FPOINT_H
+#define TITANIC_FPOINT_H
+
+#include "common/rect.h"
+
+namespace Titanic {
+
+/**
+ * Floating point Point class
+ */
+class FPoint {
+public:
+	float _x, _y;
+public:
+	FPoint() : _x(0), _y(0) {}
+	FPoint(float x, float y) : _x(x), _y(y) {}
+	FPoint(const Common::Point &pt) : _x(pt.x), _y(pt.y) {}
+
+	bool operator==(const FPoint &p) const { return _x == p._x && _y == p._y; }
+	bool operator!=(const FPoint &p) const { return _x != p._x || _y != p._y; }
+	FPoint operator+(const FPoint &delta) const { return FPoint(_x + delta._x, _y + delta._y); }
+	FPoint operator-(const FPoint &delta) const { return FPoint(_x - delta._x, _y - delta._y); }
+
+	void operator+=(const FPoint &delta) {
+		_x += delta._x;
+		_y += delta._y;
+	}
+
+	void operator-=(const FPoint &delta) {
+		_x -= delta._x;
+		_y -= delta._y;
+	}
+
+	/**
+	 * Normalises the X and Y coordinates as fractions relative to the
+	 * value of the hypotenuse formed by a triangle from the origin (0,0)
+	 */
+	float normalize();
+};
+
+} // End of namespace Titanic
+
+#endif /* TITANIC_FPOINT_H */