mirror of https://github.com/OpenTTD/OpenTTD.git
51 lines
1.7 KiB
C++
51 lines
1.7 KiB
C++
/*
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* This file is part of OpenTTD.
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* OpenTTD 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, version 2.
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* OpenTTD 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.
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* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file geometry_func.cpp Geometry functions. */
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#include "../stdafx.h"
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#include "geometry_func.hpp"
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#include "math_func.hpp"
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#include "../safeguards.h"
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/**
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* Compute bounding box of both dimensions.
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* @param d1 First dimension.
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* @param d2 Second dimension.
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* @return The bounding box of both dimensions, the smallest dimension that surrounds both arguments.
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*/
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Dimension maxdim(const Dimension &d1, const Dimension &d2)
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{
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Dimension d;
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d.width = std::max(d1.width, d2.width);
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d.height = std::max(d1.height, d2.height);
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return d;
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}
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/**
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* Compute the bounding rectangle around two rectangles.
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* @param r1 First rectangle.
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* @param r2 Second rectangle.
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* @return The bounding rectangle, the smallest rectangle that contains both arguments.
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*/
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Rect BoundingRect(const Rect &r1, const Rect &r2)
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{
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/* If either the first or the second is empty, return the other. */
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if (IsEmptyRect(r1)) return r2;
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if (IsEmptyRect(r2)) return r1;
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Rect r;
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r.top = std::min(r1.top, r2.top);
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r.bottom = std::max(r1.bottom, r2.bottom);
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r.left = std::min(r1.left, r2.left);
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r.right = std::max(r1.right, r2.right);
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return r;
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}
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