breakhack/src/sprite.c

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#include <stdlib.h>
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#include "sprite.h"
#include "util.h"
static
Sprite* sprite_create_default(void)
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{
Sprite *s = ec_malloc(sizeof(Sprite));
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s->textures[0] = NULL;
s->textures[1] = NULL;
s->clip = (SDL_Rect) { 0, 0, 16, 16 };
s->destroyTextures = false;
s->pos = (Position) { 0, 0 };
s->renderTimer = timer_create();
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s->texture_index = 0;
s->fixed = false;
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return s;
}
Sprite* sprite_create()
{
return sprite_create_default();
}
void
sprite_load_texture(Sprite *sprite,
char *path,
int index,
SDL_Renderer *renderer)
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{
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;
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}
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sprite->textures[index] = texture_create();
texture_load_from_file(sprite->textures[index], path, renderer);
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;
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}
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void sprite_render(Sprite *s, Camera *cam)
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{
if (s->textures[1]) {
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;
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texture_render_clip(s->textures[s->texture_index],
&cameraPos,
&s->clip,
cam);
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}
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);
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free(sprite);
}