Mercurial > molko
view libmlk-core/mlk/core/animation.c @ 516:6af0524913b3
misc: fix
author | David Demelier <markand@malikania.fr> |
---|---|
date | Sat, 04 Mar 2023 11:23:10 +0100 |
parents | a1b118127f47 |
children | 459ff09c09b3 |
line wrap: on
line source
/* * animation.c -- basic animations * * Copyright (c) 2020-2023 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 "animation.h" #include "sprite.h" void mlk_animation_start(struct mlk_animation *an) { assert(an); an->row = 0; an->column = 0; an->elapsed = 0; } int mlk_animation_completed(const struct mlk_animation *an) { assert(an); return an->elapsed >= an->delay && an->row >= an->sprite->nrows && an->column >= an->sprite->ncols; } int mlk_animation_update(struct mlk_animation *an, unsigned int ticks) { assert(an); assert(!mlk_animation_completed(an)); an->elapsed += ticks; if (an->elapsed < an->delay) return 0; /* Increment column first */ if (++an->column >= an->sprite->ncols) { /* * Increment row, if we reach the last row it means we are * at the last frame. */ if (++an->row >= an->sprite->nrows) an->row = an->sprite->nrows; else an->column = an->elapsed = 0; } else an->elapsed = 0; return mlk_animation_completed(an); } int mlk_animation_draw(const struct mlk_animation *an, int x, int y) { assert(an); assert(!mlk_animation_completed(an)); return mlk_sprite_draw(an->sprite, an->row, an->column, x, y); }