void voice_update(struct Voice *v) {
if (v->volume > 0) {//voice is on
v->ticks++;
switch (v->adsr_phase) {
case 1:
if (v->volume >= v->velocity) {
v->adsr_phase = 2;
} else {
handle_increase(v->attack, v);
}
break;
case 2:
if (v->volume <= v->velocity * v->decay / 0xFF) {
v->adsr_phase = 3;
} else {
handle_decrease(v->attack, v);
}
break;
case 3: //sustain
handle_decrease(v->sustain, v);
break;
case 4: //release
handle_decrease(v->rel, v);
break;
}
if (v->volume > UINT16_MAX) {
v->volume = UINT16_MAX;
}
if (v->volume < 0) {
v->volume = 0;
}
}
}
void spicker::handle_left(image *screen, InputManager *inm)
{
if (!vert)
handle_decrease(screen, inm);
}