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comparison librpg/rpg/walksprite.c @ 148:c577c15df07f

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misc: split libraries, closes #2496
author David Demelier <markand@malikania.fr>
date Thu, 15 Oct 2020 10:32:18 +0200
parents libcore/core/walksprite.c@789b23e01f52
children 852d0b7817ce
comparison
equal deleted inserted replaced
147:b386d25832c8 148:c577c15df07f
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 (struct walksprite));
33 ws->sprite = sprite;
34 ws->delay = delay;
35 }
36
37 void
38 walksprite_update(struct walksprite *ws, unsigned int ticks)
39 {
40 assert(ws);
41
42 ws->elapsed += ticks;
43
44 if (ws->elapsed >= ws->delay) {
45 ws->index += 1;
46
47 if (ws->index >= ws->sprite->ncols)
48 ws->index = 0;
49
50 ws->elapsed = 0;
51 }
52 }
53
54 void
55 walksprite_draw(struct walksprite *ws, unsigned int orientation, int x, int y)
56 {
57 assert(ws);
58 assert(orientation < 8);
59
60 sprite_draw(ws->sprite, orientation, ws->index, x, y);
61 }