/// <summary>
/// 取得目前所有播放中的state的最大剩餘時間
/// </summary>
/// <returns></returns>
private float CalculateQueueTimes()
{
float longestTime = -1f;
for (int i = 0; i < m_States.Count; i++)
{
StateInfo state = m_States[i];
//Skip deleted states
if (state == null || !state.enabled || !state.playable.IsValid())
{
continue;
}
if (state.wrapMode == WrapMode.Loop)
{
return(Mathf.Infinity);
}
float speed = state.speed;
float stateTime = m_States.GetStateTime(state.index);
float remainingTime;
if (speed > 0)
{
remainingTime = (state.clip.length - stateTime) / speed;
}
else if (speed < 0)
{
remainingTime = (stateTime) / speed;
}
else
{ // speed == 0
remainingTime = Mathf.Infinity;
}
// Maximum
if (remainingTime > longestTime)
{
longestTime = remainingTime;
}
}
return(longestTime);
}
private void UpdateStates(float deltaTime)
{
for (int i = 0; i < m_States.Count; i++)
{
StateInfo state = m_States[i];
//Skip deleted states
if (state == null)
{
continue;
}
//Update crossfade weight
if (state.fading)
{
state.weight = Mathf.MoveTowards(state.weight, state.targetWeight, state.fadeSpeed * deltaTime);
if (state.weight == state.targetWeight)
{
state.fadeSpeed = 0f;
state.fading = false;
}
state.weightDirty = true;
}
if (state.enabledDirty)
{
state.playable.SetPlayState(state.enabled ? PlayState.Playing : PlayState.Paused);
if (!keepStoppedPlayablesConnected)
{
Playable input = m_Mixer.GetInput(i);
//if state is disabled but the corresponding input is connected, disconnect it
if (input.IsValid() && !state.enabled)
{
DisconnectInput(i);
}
else if (state.enabled && !input.IsValid())
{
ConnectInput(state.index);
}
}
state.weightDirty = true;
state.enabledDirty = false;
}
if (state.enabled && state.wrapMode == WrapMode.Once)
{
bool stateIsDone = state.playable.IsDone();
float speed = m_States.GetStateSpeed(state.index);
float time = m_States.GetStateTime(state.index);
float duration = m_States.GetStatePlayableDuration(state.index);
stateIsDone |= speed < 0f && time < 0f;
stateIsDone |= speed >= 0f && time >= duration;
if (stateIsDone)
{
state.weight = 0f;
state.time = 0f;
state.playable.SetTime(state.time);
state.playable.SetTime(state.time);
m_States.DisableState(i);
if (!keepStoppedPlayablesConnected)
{
DisconnectInput(state.index);
}
state.weightDirty = true;
}
}
if (state.weightDirty)
{
m_Mixer.SetInputWeight(state.index, state.weight);
state.weightDirty = false;
}
}
}
