static void game_draw_bullets(game_t *g) {
SDL_Rect DestR;
ll_node_t *node;
bullet_t *bullet;
node = ll_get_first_node(g->state->player_bullets);
while(node) {
bullet = (bullet_t *)ll_get_item(node);
DestR.x = bullet->xpos;
DestR.y = bullet->ypos;
SDL_BlitSurface(sprite_get_basic_bullet()->pic, NULL, g->surface, &DestR);
node = ll_next_node(g->state->player_bullets, node);
}
node = ll_get_first_node(g->state->alien_bullets);
while(node) {
bullet = (bullet_t *)ll_get_item(node);
DestR.x = bullet->xpos;
DestR.y = bullet->ypos;
SDL_BlitSurface(sprite_get_basic_bullet()->pic, NULL, g->surface, &DestR);
node = ll_next_node(g->state->alien_bullets, node);
}
}
static void game_draw_aliens(game_t *g) {
SDL_Rect DestR;
ll_node_t *node;
alien_t *alien;
node = ll_get_first_node(g->state->level->aliens);
while(node) {
alien = (alien_t *)ll_get_item(node);
DestR.x = alien->ship->xpos;
DestR.y = alien->ship->ypos;
SDL_BlitSurface(alien->ship->sprite->pic, NULL, g->surface, &DestR);
node = ll_next_node(g->state->level->aliens, node);
}
}
/* validate that the given connection exists in the xbee instance
can return the conType, or ignore of **conType = NULL */
int _xbee_conValidate(struct xbee *xbee, struct xbee_con *con, struct xbee_conType **conType) {
int i;
/* check parameters */
if (!xbee) {
if (!xbee_default) return XBEE_ENOXBEE;
xbee = xbee_default;
}
if (!xbee_validate(xbee)) return XBEE_ENOXBEE;
if (!xbee->mode) return XBEE_ENOMODE;
if (!con) return XBEE_EMISSINGPARAM;
/* try to find the provided connection in any of the xbee's conTypes */
for (i = 0; xbee->mode->conTypes[i].name; i++) {
/* look for, and break if we find it */
if (ll_get_item(&(xbee->mode->conTypes[i].conList), con)) break;
}
if (!xbee->mode->conTypes[i].name) {
/* no connection was found */
if (conType) *conType = NULL;
return XBEE_EFAILED;
}
/* provide the conType to the caller */
if (conType) *conType = &(xbee->mode->conTypes[i]);
/* this mapping is implemented as an extension, therefore it is entirely optional! */
if (xbee->f->conValidate) {
int ret;
/* call the conValidate extension */
if ((ret = xbee->f->conValidate(xbee, con, conType)) != 0) {
/* ret should be either 0 / XBEE_ESTALE */;
return ret;
}
}
return XBEE_ENONE;
}
