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https://github.com/libretro/scummvm.git
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80 lines
2.2 KiB
C++
80 lines
2.2 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
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#ifndef ZVISION_VECTOR2_H
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#define ZVISION_VECTOR2_H
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#include "common/scummsys.h"
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namespace ZVision {
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/**
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* Simple class for handling both 2D position and size.
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*/
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class Vector2 {
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public:
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int16 x; ///< The horizontal part of the point
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int16 y; ///< The vertical part of the point
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public:
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Vector2() : x(0), y(0) {}
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Vector2(int16 x1, int16 y1) : x(x1), y(y1) {}
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public:
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bool operator==(const Vector2 &p) const { return x == p.x && y == p.y; }
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bool operator!=(const Vector2 &p) const { return x != p.x || y != p.y; }
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Vector2 operator+(const Vector2 &delta) const { return Vector2(x + delta.x, y + delta.y); }
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Vector2 operator-(const Vector2 &delta) const { return Vector2(x - delta.x, y - delta.y); }
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void operator+=(const Vector2 &delta) {
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x += delta.x;
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y += delta.y;
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}
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void operator-=(const Vector2 &delta) {
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x -= delta.x;
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y -= delta.y;
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}
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/**
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* Return the square of the distance between this point and the point p.
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*
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* @param p the other point
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* @return the distance between this and p
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*/
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uint sqrDist(const Vector2 &p) const {
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int diffx = ABS(p.x - x);
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if (diffx >= 0x1000)
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return 0xFFFFFF;
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int diffy = ABS(p.y - y);
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if (diffy >= 0x1000)
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return 0xFFFFFF;
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return uint(diffx * diffx + diffy * diffy);
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}
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};
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} // End of namespace ZVision
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#endif
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