int sd_sprite_save(sd_writer *w, const sd_sprite *sprite) {
if(w == NULL || sprite == NULL) {
return SD_INVALID_INPUT;
}
sd_write_uword(w, sprite->len);
sd_write_word(w, sprite->pos_x);
sd_write_word(w, sprite->pos_y);
sd_write_uword(w, sprite->width);
sd_write_uword(w, sprite->height);
sd_write_ubyte(w, sprite->index);
sd_write_ubyte(w, sprite->missing);
if(!sprite->missing) {
sd_write_buf(w, sprite->data, sprite->len);
}
return SD_SUCCESS;
}
void sd_animation_save(sd_writer *writer, sd_animation *ani) {
// Animation header
sd_write_word(writer, ani->start_x);
sd_write_word(writer, ani->start_y);
sd_write_buf(writer, ani->unknown_a, 4);
sd_write_uword(writer, ani->col_coord_count);
sd_write_ubyte(writer, ani->frame_count);
// collision table
uint32_t tmp;
for(int i = 0; i < ani->col_coord_count; i++) {
tmp = (ani->col_coord_table[i].y_ext & 0x3f);
tmp = tmp << 10;
tmp = (tmp | (ani->col_coord_table[i].y & 0x3ff));
tmp = tmp << 6;
tmp = (tmp | (ani->col_coord_table[i].x_ext & 0x3f));
tmp = tmp << 10;
tmp = (tmp | (ani->col_coord_table[i].x & 0x3ff));
sd_write_udword(writer, tmp);
}
// Animation string header
uint16_t a_size = strlen(ani->anim_string);
sd_write_uword(writer, a_size);
sd_write_buf(writer, ani->anim_string, a_size);
sd_write_ubyte(writer, 0);
// Extra animation strings
uint16_t s_size = 0;
sd_write_ubyte(writer, ani->extra_string_count);
for(int i = 0; i < ani->extra_string_count; i++) {
s_size = strlen(ani->extra_strings[i]);
sd_write_uword(writer, s_size);
sd_write_buf(writer, ani->extra_strings[i], s_size);
sd_write_ubyte(writer, 0);
}
// Sprites
for(int i = 0; i < ani->frame_count; i++) {
sd_sprite_save(writer, ani->sprites[i]);
}
}
