Mercurial > molko
view src/sprite.c @ 13:c188e9603faf
misc: add basic documentation files
author | David Demelier <markand@malikania.fr> |
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date | Tue, 07 Jan 2020 21:34:03 +0100 |
parents | fbb7101b7bd8 |
children | 607bd90aba63 |
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/* * sprite.c -- image sprites * * 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 "sprite.h" #include "texture_p.h" #include "texture.h" void sprite_init(struct sprite *sprite, struct texture *tex, uint16_t cellw, uint16_t cellh) { int w = 0; int h = 0; assert(sprite); assert(tex); SDL_QueryTexture(tex->handle, NULL, NULL, &w, &h); sprite->texture = tex; sprite->cellw = cellw; sprite->cellh = cellh; sprite->nrows = h / cellh; sprite->ncols = w / cellw; } void sprite_draw(struct sprite *sprite, uint16_t r, uint16_t c, int x, int y) { assert(sprite); texture_draw_ex( sprite->texture, c * sprite->cellw, /* src y */ r * sprite->cellh, /* src x */ sprite->cellw, /* src width */ sprite->cellh, /* src height */ x, /* dst x */ y, /* dst y */ sprite->cellw, /* dst width */ sprite->cellh, /* dst height */ 0.0 /* angle */ ); }