Mercurial > molko
annotate libmlk-rpg/mlk/rpg/walksprite.c @ 468:91ce23a36143
core: sprite -> mlk_sprite
author | David Demelier <markand@malikania.fr> |
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date | Mon, 27 Feb 2023 11:08:28 +0100 |
parents | 773a082f0b91 |
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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 #include <string.h> |
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21 |
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22 #include <mlk/core/sprite.h> |
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23 |
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24 #include "walksprite.h" |
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25 |
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26 void |
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27 walksprite_init(struct walksprite *ws, struct mlk_sprite *sprite, unsigned int delay) |
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28 { |
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29 assert(ws); |
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30 assert(sprite); |
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31 |
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32 memset(ws, 0, sizeof (*ws)); |
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33 ws->sprite = sprite; |
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34 ws->delay = delay; |
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35 } |
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36 |
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37 void |
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38 walksprite_reset(struct walksprite *ws) |
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39 { |
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40 assert(ws); |
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41 |
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42 ws->index = 0; |
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43 } |
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44 |
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45 void |
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46 walksprite_update(struct walksprite *ws, unsigned int ticks) |
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47 { |
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48 assert(ws); |
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49 |
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50 ws->elapsed += ticks; |
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51 |
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52 if (ws->elapsed >= ws->delay) { |
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53 ws->index += 1; |
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54 |
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55 if (ws->index >= ws->sprite->ncols) |
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56 ws->index = 0; |
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57 |
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58 ws->elapsed = 0; |
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59 } |
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60 } |
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61 |
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62 void |
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63 walksprite_draw(const struct walksprite *ws, unsigned int orientation, int x, 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 } |