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engines/bagel/hodjnpodj/libs/vector.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 BAGEL_HODJNPODJ_LIBS_VECTOR_H
+#define BAGEL_HODJNPODJ_LIBS_VECTOR_H
+
+#include "bagel/boflib/stdinc.h"
+
+namespace Bagel {
+namespace HodjNPodj {
+
+#define PI      (double)3.141592653
+#define RADCNVT ((double)180/PI)               // PI is 180 degrees
+
+#define Deg2Rad(d) (d/RADCNVT)                  // converts degrees to radians
+#define Rad2Deg(r) (r*RADCNVT)                  // converts radians to degrees
+
+typedef Bagel::Vector VECTOR;
+
+class CVector : public VECTOR {
+public:
+	CVector();
+	CVector(const VECTOR &src);
+	CVector(double xx, double yy, double zz = 0);
+
+	// vector operations
+	void    Unitize();
+	void    Normalize();
+	void    SetVector(double xx, double yy, double zz = 0);
+	double  DotProduct(const VECTOR &rhs) const;
+	void    Rotate(double angle);
+	void    Reflect(const VECTOR &rhs);
+	double  AngleBetween(const VECTOR &rhs);
+	double  RealAngle(const VECTOR &rhs);
+	double  Length() const;
+
+	// Generic operations
+	CVector operator +(const VECTOR &rhs) const;
+	CVector operator +(double) const;
+	CVector operator -(const VECTOR &rhs) const;
+	CVector operator -(double) const;
+	CVector operator *(double) const;
+	CVector operator /(double) const;
+	void    operator +=(const VECTOR &rhs);
+	void    operator -=(const VECTOR &rhs);
+	void    operator *=(double);
+	void    operator /=(double);
+	bool operator ==(const VECTOR &rhs) const;
+
+protected:
+
+private:
+};
+
+// misc Vector add-ons
+extern double distanceBetweenPoints(const VECTOR &v1, const VECTOR &v2);
+
+} // namespace HodjNPodj
+} // namespace Bagel
+
+#endif