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annotate libmlk-rpg/mlk/rpg/walksprite.c @ 629:fee7bd30725c

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rpg: cleanup tileset-loader-file
author David Demelier <markand@malikania.fr>
date Sat, 26 Aug 2023 16:09:35 +0200
parents cb8ca73f1aa4
children
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1 /*
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2 * walksprite.c -- sprite designed for walking entities
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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 #include <assert.h>
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20
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21 #include <mlk/core/sprite.h>
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22
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23 #include "walksprite.h"
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24
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25 void
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26 mlk_walksprite_init(struct mlk_walksprite *ws)
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27 {
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28 assert(ws);
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29
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30 mlk_walksprite_reset(ws);
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31 }
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32
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33 void
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34 mlk_walksprite_reset(struct mlk_walksprite *ws)
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35 {
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36 assert(ws);
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37
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38 ws->index = 0;
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39 ws->elapsed = 0;
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40 }
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42 void
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43 mlk_walksprite_update(struct mlk_walksprite *ws, unsigned int ticks)
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44 {
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45 assert(ws);
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47 ws->elapsed += ticks;
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48
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49 if (ws->elapsed >= ws->delay) {
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50 ws->index += 1;
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51
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52 if (ws->index >= ws->sprite->ncols)
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53 ws->index = 0;
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54
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55 ws->elapsed = 0;
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56 }
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57 }
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58
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59 void
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60 mlk_walksprite_draw(const struct mlk_walksprite *ws,
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61 unsigned int orientation,
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62 int x,
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63 int y)
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64 {
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65 assert(ws);
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66 assert(orientation < 8);
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67
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68 mlk_sprite_draw(ws->sprite, orientation, ws->index, x, y);
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69 }