From 611ff31a56055b1ec05445597087cb042de2c648 Mon Sep 17 00:00:00 2001 From: richiesams Date: Sun, 28 Jul 2013 21:09:20 -0500 Subject: ZVISION: Copy Point struct from rect.h and turn it into a templated class --- engines/zvision/point.h | 80 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 80 insertions(+) create mode 100644 engines/zvision/point.h (limited to 'engines/zvision') diff --git a/engines/zvision/point.h b/engines/zvision/point.h new file mode 100644 index 0000000000..da244e9449 --- /dev/null +++ b/engines/zvision/point.h @@ -0,0 +1,80 @@ +/* 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 2 + * 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, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + */ + +#ifndef COMMON_ZVISION_POINT_H +#define COMMON_ZVISION_POINT_H + +#include "common/types.h" + +namespace ZVision { + +/** + * Simple class for handling both 2D position and size. + */ +template +class Point { +public: + T x; ///< The horizontal part of the point + T y; ///< The vertical part of the point + +public: + Point() : x(0), y(0) {} + Point(T x1, T y1) : x(x1), y(y1) {} + +public: + bool operator==(const Point &p) const { return x == p.x && y == p.y; } + bool operator!=(const Point &p) const { return x != p.x || y != p.y; } + Point operator+(const Point &delta) const { return Point(x + delta.x, y + delta.y); } + Point operator-(const Point &delta) const { return Point(x - delta.x, y - delta.y); } + + void operator+=(const Point &delta) { + x += delta.x; + y += delta.y; + } + + void operator-=(const Point &delta) { + x -= delta.x; + y -= delta.y; + } + + /** + * Return the square of the distance between this point and the point p. + * + * @param p the other point + * @return the distance between this and p + */ + uint sqrDist(const Point &p) const { + int diffx = ABS(p.x - x); + if (diffx >= 0x1000) + return 0xFFFFFF; + + int diffy = ABS(p.y - y); + if (diffy >= 0x1000) + return 0xFFFFFF; + + return uint(diffx * diffx + diffy * diffy); + } +}; + +} // End of namespace ZVision + +#endif -- cgit v1.2.3