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comparison libmlk-rpg/rpg/walksprite.c @ 243:71b3b7036de7

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misc: lot of cleanups, - prefix libraries with libmlk, - move assets from source directories closes #2520, - prefix header guards closes #2519
author David Demelier <markand@malikania.fr>
date Sat, 28 Nov 2020 22:37:30 +0100
parents librpg/rpg/walksprite.c@86b71e1f9dd5
children d01e83210ca2
comparison
equal deleted inserted replaced
242:4c24604efcab 243:71b3b7036de7
1 /*
2 * walksprite.c -- sprite designed for walking entities
3 *
4 * Copyright (c) 2020 David Demelier <markand@malikania.fr>
5 *
6 * Permission to use, copy, modify, and/or distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19 #include <assert.h>
20 #include <string.h>
21
22 #include <core/sprite.h>
23
24 #include "walksprite.h"
25
26 void
27 walksprite_init(struct walksprite *ws, struct sprite *sprite, unsigned int delay)
28 {
29 assert(ws);
30 assert(sprite);
31
32 memset(ws, 0, sizeof (*ws));
33 ws->sprite = sprite;
34 ws->delay = delay;
35 }
36
37 void
38 walksprite_reset(struct walksprite *ws)
39 {
40 assert(ws);
41
42 ws->index = 0;
43 }
44
45 void
46 walksprite_update(struct walksprite *ws, unsigned int ticks)
47 {
48 assert(ws);
49
50 ws->elapsed += ticks;
51
52 if (ws->elapsed >= ws->delay) {
53 ws->index += 1;
54
55 if (ws->index >= ws->sprite->ncols)
56 ws->index = 0;
57
58 ws->elapsed = 0;
59 }
60 }
61
62 void
63 walksprite_draw(const struct walksprite *ws, unsigned int orientation, int x, int y)
64 {
65 assert(ws);
66 assert(orientation < 8);
67
68 sprite_draw(ws->sprite, orientation, ws->index, x, y);
69 }