1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
/*
* This file is part of OpenTTD.
* 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.
* 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.
* 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/>.
*/
/** @file geometry_func.cpp Geometry functions. */
#include "../stdafx.h"
#include "geometry_func.hpp"
#include "math_func.hpp"
#include "../safeguards.h"
/**
* Compute bounding box of both dimensions.
* @param d1 First dimension.
* @param d2 Second dimension.
* @return The bounding box of both dimensions, the smallest dimension that surrounds both arguments.
*/
Dimension maxdim(const Dimension &d1, const Dimension &d2)
{
Dimension d;
d.width = std::max(d1.width, d2.width);
d.height = std::max(d1.height, d2.height);
return d;
}
/**
* Compute the bounding rectangle around two rectangles.
* @param r1 First rectangle.
* @param r2 Second rectangle.
* @return The bounding rectangle, the smallest rectangle that contains both arguments.
*/
Rect BoundingRect(const Rect &r1, const Rect &r2)
{
/* If either the first or the second is empty, return the other. */
if (IsEmptyRect(r1)) return r2;
if (IsEmptyRect(r2)) return r1;
Rect r;
r.top = std::min(r1.top, r2.top);
r.bottom = std::max(r1.bottom, r2.bottom);
r.left = std::min(r1.left, r2.left);
r.right = std::max(r1.right, r2.right);
return r;
}
|
