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annotate libcore/core/maths.c @ 135:eadfed7674ac

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misc: fix all warnings
author David Demelier <markand@malikania.fr>
date Sun, 11 Oct 2020 15:01:26 +0200
parents 789b23e01f52
children 9733d379be89
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1 /*
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2 * maths.c -- basic maths
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3 *
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4 * Copyright (c) 2020 David Demelier <markand@malikania.fr>
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5 *
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6 * Permission to use, copy, modify, and/or distribute this software for any
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7 * purpose with or without fee is hereby granted, provided that the above
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8 * copyright notice and this permission notice appear in all copies.
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9 *
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10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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17 */
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18
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19 #include "maths.h"
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20
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21 bool
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22 maths_is_boxed(int x, int y, unsigned int w, unsigned int h, int px, int py)
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23 {
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24 return px >= x &&
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25 py >= y &&
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26 px <= x + (int)w &&
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27 py <= y + (int)h;
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28 }
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29
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30 void
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31 maths_centerize(int *x,
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32 int *y,
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33 unsigned int w,
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34 unsigned int h,
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35 int px,
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36 int py,
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37 unsigned int pw,
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38 unsigned int ph)
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39 {
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40 if (x)
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41 *x = px + (pw / 2) - (w / 2);
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42 if (y)
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43 *y = py + (ph / 2) - (h / 2);
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44 }