public JudgeResult?UserPressed(time_t position)
{
// This check just makes sure that we can process ticks.
// If there are no state ticks, there should never be score ticks left.
if (HasStateTicks)
{
Debug.Assert(HasScoreTicks);
}
else
{
SpawnKeyBeam?.Invoke(Label, JudgeKind.Passive, false);
return(null);
}
switch (m_state)
{
case JudgeState.Idle:
{
var nextStateTick = NextStateTick;
time_t difference = position - (nextStateTick.Position + JudgementOffset);
time_t absDifference = Math.Abs((double)difference);
if (nextStateTick.State == JudgeState.ChipAwaitPress && absDifference <= m_chipMissRadius)
{
var scoreTick = NextScoreTick;
Debug.Assert(scoreTick.Kind == TickKind.Chip);
Debug.Assert(scoreTick.Position == nextStateTick.Position);
// `difference` applies to both ticks, don't recalculate
JudgeResult result;
if (absDifference <= m_chipPerfectRadius)
{
result = new JudgeResult(difference, JudgeKind.Perfect);
}
else if (absDifference <= m_chipCriticalRadius)
{
result = new JudgeResult(difference, JudgeKind.Critical);
}
else if (absDifference <= m_chipNearRadius)
{
result = new JudgeResult(difference, JudgeKind.Near);
}
// TODO(local): Is this how we want to handle misses?
else
{
result = new JudgeResult(difference, JudgeKind.Bad);
}
OnTickProcessed?.Invoke(scoreTick.Entity, position, result, difference < 0);
OnChipPressed?.Invoke(position, scoreTick.Entity);
SpawnKeyBeam?.Invoke(scoreTick.Entity.Lane, result.Kind, difference < 0);
AdvanceStateTick();
AdvanceScoreTick();
// state stays idle after a chip press, chips are instantaneous
IsBeingPlayed = true;
return(result);
}
else if (nextStateTick.State == JudgeState.HoldAwaitPress && absDifference <= m_holdActivateRadius)
{
OnHoldPressed?.Invoke(position, nextStateTick.Entity);
AdvanceStateTick();
// No need to advance a score tick, we haven't judged anything
// state is `hold on` because ofc we pressed the hold!
m_state = JudgeState.HoldOn;
m_currentStateTick = nextStateTick;
IsBeingPlayed = true;
}
// do nothing when pressed otherwise
else
{
SpawnKeyBeam?.Invoke(Label, JudgeKind.Passive, false);
}
} break;
case JudgeState.HoldOff:
{
OnHoldPressed?.Invoke(position, m_currentStateTick.Entity);
m_state = JudgeState.HoldOn;
IsBeingPlayed = true;
} break;
case JudgeState.HoldOn: throw new InvalidOperationException();
}
return(null);
}