Mercurial > molko
annotate libmlk-core/mlk/core/maths.h @ 623:20b818193ce0
ui: remove useless stuff
author | David Demelier <markand@malikania.fr> |
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date | Wed, 23 Aug 2023 20:01:00 +0200 |
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1 /* |
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2 * maths.h -- basic maths |
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3 * |
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4 * Copyright (c) 2020-2023 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 #ifndef MLK_CORE_MATHS_H |
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20 #define MLK_CORE_MATHS_H |
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21 |
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22 /** |
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23 * \file mlk/core/maths.h |
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24 * \brief Basic maths |
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25 */ |
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26 |
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27 #if defined(__cplusplus) |
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28 extern "C" { |
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29 #endif |
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30 |
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31 /** |
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32 * Returns non-zero if the coordinates x, y inside the bounding rectangle. |
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33 * |
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34 * \param x the x coordinate |
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35 * \param y the y coordinate |
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36 * \param px rectangle x coordinate |
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37 * \param py rectangle y coordinate |
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38 * \param pw rectangle width |
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39 * \param ph rectangle height |
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40 * \return non-zero if x, y is within pw, ph, px, py |
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41 */ |
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42 int |
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43 mlk_maths_is_boxed(int x, int y, int px, int py, unsigned int pw, unsigned int ph); |
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44 |
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45 /** |
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46 * Scale a value within two ranges. |
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47 * |
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48 * \param in the value to scale |
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49 * \param old_min old minimum |
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50 * \param old_max old maximum |
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51 * \param new_min new minimum |
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52 * \param new_max new maximum |
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53 * \return scaled value |
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54 */ |
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55 float |
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56 mlk_maths_scale(float in, float old_min, float old_max, float new_min, float new_max); |
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57 |
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58 #if defined(__cplusplus) |
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59 } |
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60 #endif |
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61 |
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62 #endif /* !MLK_CORE_MATHS_H */ |