Mercurial > molko
comparison libcore/core/maths.c @ 121:789b23e01f52
misc: reorganize hierarchy, closes #2490
author | David Demelier <markand@malikania.fr> |
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date | Mon, 05 Oct 2020 13:25:06 +0200 |
parents | src/core/maths.c@ed1a6bb02a78 |
children | eadfed7674ac |
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120:b3429b26d60d | 121:789b23e01f52 |
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1 /* | |
2 * maths.c -- basic maths | |
3 * | |
4 * Copyright (c) 2020 David Demelier <markand@malikania.fr> | |
5 * | |
6 * Permission to use, copy, modify, and/or distribute this software for any | |
7 * purpose with or without fee is hereby granted, provided that the above | |
8 * copyright notice and this permission notice appear in all copies. | |
9 * | |
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
17 */ | |
18 | |
19 #include "maths.h" | |
20 | |
21 bool | |
22 maths_is_boxed(int x, int y, unsigned int w, unsigned int h, int px, int py) | |
23 { | |
24 return px >= x && | |
25 py >= y && | |
26 px <= x + w && | |
27 py <= y + h; | |
28 } | |
29 | |
30 void | |
31 maths_centerize(int *x, | |
32 int *y, | |
33 unsigned int w, | |
34 unsigned int h, | |
35 int px, | |
36 int py, | |
37 unsigned int pw, | |
38 unsigned int ph) | |
39 { | |
40 if (x) | |
41 *x = px + (pw / 2) - (w / 2); | |
42 if (y) | |
43 *y = py + (ph / 2) - (h / 2); | |
44 } |