/// <summary>
/// Gets the state of the object and records it into the given sample.
/// Returns the number of bytes that were recorded.
/// </summary>
/// <param name="o"></param>
private int RecordState(object o, byte[][] sample)
{
RecordableMetadata meta = GetMetadata(o);
StateDefinition def;
definitions.TryGetValue(o.GetType(), out def);
sample[meta.id] = def.GetState(o);
return(sample[meta.id].Length);
}
/// <summary>
/// Sets the state of an object to the state it had in the given sample index.
/// If there was no recording data for the given sample, or the sample index is
/// out of range, the state will not be set.
/// Returns true if the state was set.
/// </summary>
/// <param name="o"></param>
/// <param name="sampleIdx"></param>
private bool SetState(object o, int sampleIdx)
{
RecordableMetadata meta = GetMetadata(o);
StateDefinition def = GetDefinition(o.GetType());
byte[][] sample = samples[sampleIdx];
if (meta.id < sample.Length)
{
def.SetState(o, sample[meta.id]);
return(true);
}
return(false);
}
/// <summary>
/// Updates the state of the object, if it needs it.
/// </summary>
/// <param name="o"></param>
/// <param name="meta"></param>
private void UpdateState(object o)
{
RecordableMetadata meta = GetMetadata(o);
switch (meta.state)
{
case TimeState.NOMINAL:
case TimeState.SLOW:
case TimeState.FAST_FORWARD:
case TimeState.PAUSE:
meta.jumpFrameIdx++;
break;
case TimeState.REWIND:
SetState(o, meta.jumpFrameIdx);
//Debug.Log("Set state of " + o + " to frame " + meta.jumpFrameIdx);
meta.jumpFrameIdx--;
if (meta.jumpFrameIdx < 0)
{
meta.jumpFrameIdx = 0;
}
break;
case TimeState.PLAYBACK:
// Set the state, advance the jump frame
SetState(o, meta.jumpFrameIdx);
meta.jumpFrameIdx++;
// ensure the frame index never goes out of range.
// once this happens, the state is set to nominal
if (meta.jumpFrameIdx >= samples.Count)
{
SetTimeState(o, TimeState.NOMINAL);
}
break;
default:
throw new InvalidProgramException("Invalid time flow state: " + meta.state);
}
}