breakhack/src/sprite.c

156 lines
3.7 KiB
C

/*
* BreakHack - A dungeone crawler RPG
* Copyright (C) 2018 Linus Probert <linus.probert@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdlib.h>
#include "sprite.h"
#include "util.h"
static Sprite*
sprite_create_default(void)
{
Sprite *s = ec_malloc(sizeof(Sprite));
s->textures[0] = NULL;
s->textures[1] = NULL;
s->clip = (SDL_Rect) { 0, 0, 0, 0 };
s->destroyTextures = false;
s->pos = (Position) { 0, 0 };
s->dim = DEFAULT_DIMENSION;
s->angle = 0;
s->rotationPoint = (SDL_Point) { 0, 0 };
s->flip = SDL_FLIP_NONE;
s->renderTimer = timer_create();
s->texture_index = 0;
s->fixed = false;
s->animate = true;
s->hidden = false;
s->onRender = NULL;
return s;
}
Sprite*
sprite_create(void)
{
return sprite_create_default();
}
void
sprite_load_texture(Sprite *sprite,
const char *path,
int index,
SDL_Renderer *renderer)
{
if (index > 1)
fatal("in sprite_load_texture() index out of bounds");
if (sprite->destroyTextures && sprite->textures[index] != NULL) {
texture_destroy(sprite->textures[index]);
sprite->textures[index] = NULL;
}
sprite->textures[index] = texture_create();
texture_load_from_file(sprite->textures[index], path, renderer);
sprite->destroyTextures = true;
}
void sprite_load_text_texture(Sprite *sprite, const char * path, int index, int size, int outline)
{
if (index > 1)
fatal("in sprite_load_texture() index out of bounds");
if (sprite->destroyTextures && sprite->textures[index] != NULL) {
texture_destroy(sprite->textures[index]);
sprite->textures[index] = NULL;
}
sprite->textures[index] = texture_create();
texture_load_font(sprite->textures[index], path, size, outline);
sprite->destroyTextures = true;
}
void
sprite_set_texture(Sprite *s, Texture *t, int index)
{
if (index > 1)
fatal("in sprite_set_texture() index out of bounds");
if (s->destroyTextures)
fatal("in sprite_set_texture() sprite contains loaded textures");
s->textures[index] = t;
}
void
sprite_render(Sprite *s, Camera *cam)
{
if (s->hidden)
return;
if (s->onRender)
s->onRender(s);
if (s->textures[1] && s->animate) {
if (!timer_started(s->renderTimer))
timer_start(s->renderTimer);
if (timer_get_ticks(s->renderTimer) > 300) {
timer_stop(s->renderTimer);
timer_start(s->renderTimer);
s->texture_index = s->texture_index == 0 ? 1 : 0;
}
}
Position cameraPos;
if (!s->fixed)
cameraPos = camera_to_camera_position(cam, &s->pos);
else
cameraPos = s->pos;
SDL_Rect box = {
cameraPos.x, cameraPos.y, s->dim.width, s->dim.height
};
if (s->angle != 0 || s->flip != SDL_FLIP_NONE) {
texture_render_clip_ex(s->textures[s->texture_index],
&box,
&s->clip,
s->angle,
&s->rotationPoint,
s->flip,
cam);
} else if (s->clip.w && s->clip.h) {
texture_render_clip(s->textures[s->texture_index],
&box,
&s->clip,
cam);
} else {
texture_render(s->textures[s->texture_index],
&box,
cam);
}
}
void sprite_destroy(Sprite *sprite)
{
if (sprite->destroyTextures) {
if (sprite->textures[0])
texture_destroy(sprite->textures[0]);
if (sprite->textures[1])
texture_destroy(sprite->textures[1]);
}
timer_destroy(sprite->renderTimer);
free(sprite);
}