private bool Moved()
{
TimePositionInfo LastPosition = timeBuffer.Peek();
return(transform.position != LastPosition.position ||
transform.rotation != LastPosition.rotation ||
(rigidBody && (rigidBody.velocity != LastPosition.velocity)));
}
/// <summary>
/// Dumb (inneficient) mechanism for testing if the object moved since the last frame, since `transform.hasChanged` seems really buggy.
/// </summary>
/// <returns></returns>
private bool MovedSignificantly()
{
TimePositionInfo LastPosition = timeBuffer.Peek();
return(Vector3.Distance(transform.position, LastPosition.position) > Settings.PositionChangeThreshold ||
Quaternion.Angle(transform.rotation, LastPosition.rotation) > Settings.RotationChangeThreshold ||
(rigidBody && Vector3.Distance(rigidBody.velocity, LastPosition.velocity) > Settings.VelocityChangeThreshold));
}
private void Start()
{
Reset();
InitialPosition = new TimePositionInfo
{
position = transform.position,
rotation = transform.rotation,
velocity = rigidBody != null ? rigidBody.velocity : Vector3.zero,
framesSpendInThisState = long.MaxValue / 2, // the object has been there 'forever'
};
timeBuffer.Push(InitialPosition);
}
public void RewindTime()
{
// we can't go back in time further than the initial position
if (!IsAtInitialPosition)
{
TimePositionInfo pos = timeBuffer.Pop();
transform.position = pos.position;
transform.rotation = pos.rotation;
if (rigidBody != null)
{
rigidBody.velocity = pos.velocity;
}
// push it back if it is still viable
if (pos.framesSpendInThisState > 1)
{
pos.framesSpendInThisState -= 1;
timeBuffer.Push(pos);
}
}
}
