Mercurial > molko
view libmlk-rpg/rpg/walksprite.c @ 278:cc676046aac9
core: add sprite_scale function
author | David Demelier <markand@malikania.fr> |
---|---|
date | Tue, 15 Dec 2020 22:06:32 +0100 |
parents | 71b3b7036de7 |
children | d01e83210ca2 |
line wrap: on
line source
/* * walksprite.c -- sprite designed for walking entities * * Copyright (c) 2020 David Demelier <markand@malikania.fr> * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include <assert.h> #include <string.h> #include <core/sprite.h> #include "walksprite.h" void walksprite_init(struct walksprite *ws, struct sprite *sprite, unsigned int delay) { assert(ws); assert(sprite); memset(ws, 0, sizeof (*ws)); ws->sprite = sprite; ws->delay = delay; } void walksprite_reset(struct walksprite *ws) { assert(ws); ws->index = 0; } void walksprite_update(struct walksprite *ws, unsigned int ticks) { assert(ws); ws->elapsed += ticks; if (ws->elapsed >= ws->delay) { ws->index += 1; if (ws->index >= ws->sprite->ncols) ws->index = 0; ws->elapsed = 0; } } void walksprite_draw(const struct walksprite *ws, unsigned int orientation, int x, int y) { assert(ws); assert(orientation < 8); sprite_draw(ws->sprite, orientation, ws->index, x, y); }