/** Check if animation sound playback is in progress.
* Currently #AV_SOUND_CHANNEL is used only for animation sounds.
* \return 0 means busy playing audio; 1 means idle
*/
char
AnimSoundCheck(void)
{
/* assume sound channel */
av_step();
if (Channels[AV_SOUND_CHANNEL].chunk)
return (0);
return (1);
}
/**
* Block until an SDL event comes in.
*
* We have a 30ms timer going, so that is the
* maximum wait time.
*/
void
av_block(void)
{
SDL_Event ev;
if (SDL_WaitEvent(&ev)) {
av_process_event(&ev);
av_step(); /* soak up any other currently available events */
}
}
int
bioskey(int peek)
{
int c;
av_step();
if (peek)
{
if (keybuf_in_idx != keybuf_out_idx)
return (1);
return (0);
}
if (keybuf_in_idx == keybuf_out_idx)
return (0);
c = keybuf[keybuf_out_idx];
keybuf_out_idx = (keybuf_out_idx + 1) % KEYBUF_SIZE;
return (c);
}
void
NUpdateVoice(void)
{
av_step();
}
