Mercurial > molko
annotate src/libmlk-core/core/maths.c @ 320:8f9937403749
misc: improve loading of data
author | David Demelier <markand@malikania.fr> |
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date | Fri, 01 Oct 2021 20:30:00 +0200 |
parents | libmlk-core/core/maths.c@d01e83210ca2 |
children | 460c78706989 |
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1 /* |
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2 * maths.c -- basic maths |
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3 * |
314 | 4 * Copyright (c) 2020-2021 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 int |
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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 float |
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31 maths_scale(float in, float old_min, float old_max, float new_min, float new_max) |
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32 { |
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33 return (in / ((old_max - old_min) / (new_max - new_min))) + new_min; |
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34 } |