private void SetCartPosition(float distanceAlongPath)
{
if (m_Path != null)
{
m_Position = m_Path.NormalizeUnit(distanceAlongPath, m_PositionUnits);
transform.position = m_Path.EvaluatePositionAtUnit(m_Position, m_PositionUnits);
transform.rotation = m_Path.EvaluateOrientationAtUnit(m_Position, m_PositionUnits);
}
}
/// <summary>Positions the virtual camera according to the transposer rules.</summary>
/// <param name="curState">The current camera state</param>
/// <param name="deltaTime">Used for damping. If 0 or less, no damping is done.</param>
public void MutateCameraState(ref CameraState curState, float deltaTime)
{
// Init previous frame state info
if (deltaTime <= 0)
{
m_PreviousPathPosition = m_PathPosition;
m_PreviousCameraPosition = curState.RawPosition;
}
if (!IsValid)
{
return;
}
//UnityEngine.Profiling.Profiler.BeginSample("CinemachineTrackedDolly.MutateCameraState");
// Get the new ideal path base position
if (m_AutoDolly.m_Enabled && VirtualCamera.Follow != null)
{
float prevPos = m_PreviousPathPosition;
if (m_PositionUnits == CinemachinePathBase.PositionUnits.Distance)
{
prevPos = m_Path.GetPathPositionFromDistance(prevPos);
}
m_PathPosition = m_Path.FindClosestPoint(
VirtualCamera.Follow.transform.position,
Mathf.FloorToInt(prevPos),
(deltaTime <= 0 || m_AutoDolly.m_SearchRadius <= 0)
? -1 : m_AutoDolly.m_SearchRadius,
m_AutoDolly.m_StepsPerSegment);
if (m_PositionUnits == CinemachinePathBase.PositionUnits.Distance)
{
m_PathPosition = m_Path.GetPathDistanceFromPosition(m_PathPosition);
}
// Apply the path position offset
m_PathPosition += m_AutoDolly.m_PositionOffset;
}
float newPathPosition = m_PathPosition;
if (deltaTime > 0)
{
// Normalize previous position to find the shortest path
float maxUnit = m_Path.MaxUnit(m_PositionUnits);
if (maxUnit > 0)
{
float prev = m_Path.NormalizeUnit(m_PreviousPathPosition, m_PositionUnits);
float next = m_Path.NormalizeUnit(newPathPosition, m_PositionUnits);
if (m_Path.Looped && Mathf.Abs(next - prev) > maxUnit / 2)
{
if (next > prev)
{
prev += maxUnit;
}
else
{
prev -= maxUnit;
}
}
m_PreviousPathPosition = prev;
newPathPosition = next;
}
// Apply damping along the path direction
float offset = m_PreviousPathPosition - newPathPosition;
if (Mathf.Abs(offset) > UnityVectorExtensions.Epsilon)
{
offset *= deltaTime / Mathf.Max(m_ZDamping * kDampingScale, deltaTime);
}
newPathPosition = m_PreviousPathPosition - offset;
}
m_PreviousPathPosition = newPathPosition;
Quaternion newPathOrientation = m_Path.EvaluateOrientationAtUnit(newPathPosition, m_PositionUnits);
// Apply the offset to get the new camera position
Vector3 newCameraPos = m_Path.EvaluatePositionAtUnit(newPathPosition, m_PositionUnits);
Vector3 offsetX = newPathOrientation * Vector3.right;
Vector3 offsetY = newPathOrientation * Vector3.up;
Vector3 offsetZ = newPathOrientation * Vector3.forward;
newCameraPos += m_PathOffset.x * offsetX;
newCameraPos += m_PathOffset.y * offsetY;
newCameraPos += m_PathOffset.z * offsetZ;
// Apply damping to the remaining directions
if (deltaTime > 0)
{
Vector3 currentCameraPos = m_PreviousCameraPosition;
Vector3 delta = (currentCameraPos - newCameraPos);
Vector3 delta1 = Vector3.Dot(delta, offsetY) * offsetY;
Vector3 delta0 = delta - delta1;
delta = delta0 * deltaTime / Mathf.Max(m_XDamping * kDampingScale, deltaTime)
+ delta1 * deltaTime / Mathf.Max(m_YDamping * kDampingScale, deltaTime);
newCameraPos = currentCameraPos - delta;
}
curState.RawPosition = m_PreviousCameraPosition = newCameraPos;
// Set the orientation and up
Quaternion newOrientation
= GetTargetOrientationAtPathPoint(newPathOrientation, curState.ReferenceUp);
if (deltaTime <= 0)
{
m_PreviousOrientation = newOrientation;
}
else
{
if (deltaTime > 0)
{
Vector3 relative = (Quaternion.Inverse(m_PreviousOrientation)
* newOrientation).eulerAngles;
Vector3 damping = AngularDamping;
for (int i = 0; i < 3; ++i)
{
if (relative[i] > 180)
{
relative[i] -= 360;
}
if (Mathf.Abs(relative[i]) > UnityVectorExtensions.Epsilon)
{
relative[i] *= deltaTime / Mathf.Max(damping[i], deltaTime);
}
}
newOrientation = m_PreviousOrientation * Quaternion.Euler(relative);
}
m_PreviousOrientation = newOrientation;
}
curState.RawOrientation = newOrientation;
curState.ReferenceUp = curState.RawOrientation * Vector3.up;
//UnityEngine.Profiling.Profiler.EndSample();
}
/// <summary>Positions the virtual camera according to the transposer rules.</summary>
/// <param name="curState">The current camera state</param>
/// <param name="deltaTime">Used for damping. If 0 or less, no damping is done.</param>
public void MutateCameraState(ref CameraState curState, float deltaTime)
{
// Init previous frame state info
if (deltaTime <= 0)
{
m_PreviousPathPosition = m_PathPosition;
m_PreviousCameraPosition = curState.RawPosition;
}
if (!IsValid)
{
return;
}
// Get the new ideal path base position
if (m_AutoDolly.m_Enabled && VirtualCamera.Follow != null)
{
float prevPos = m_PreviousPathPosition;
if (m_PositionUnits == CinemachinePathBase.PositionUnits.Distance)
{
prevPos = m_Path.GetPathPositionFromDistance(prevPos);
}
m_PathPosition = m_Path.FindClosestPoint(
VirtualCamera.Follow.transform.position,
Mathf.FloorToInt(prevPos),
(deltaTime <= 0 || m_AutoDolly.m_SearchRadius <= 0)
? -1 : m_AutoDolly.m_SearchRadius,
m_AutoDolly.m_StepsPerSegment);
if (m_PositionUnits == CinemachinePathBase.PositionUnits.Distance)
{
m_PathPosition = m_Path.GetPathDistanceFromPosition(m_PathPosition);
}
}
float newPathPosition = m_PathPosition;
if (deltaTime > 0)
{
// Normalize previous position to find the shortest path
float maxUnit = m_Path.MaxUnit(m_PositionUnits);
if (maxUnit > 0)
{
float prev = m_Path.NormalizeUnit(m_PreviousPathPosition, m_PositionUnits);
float next = m_Path.NormalizeUnit(newPathPosition, m_PositionUnits);
if (m_Path.Looped && Mathf.Abs(next - prev) > maxUnit / 2)
{
if (next > prev)
{
prev += maxUnit;
}
else
{
prev -= maxUnit;
}
}
m_PreviousPathPosition = prev;
newPathPosition = next;
}
// Apply damping along the path direction
float offset = m_PreviousPathPosition - newPathPosition;
if (Mathf.Abs(offset) > UnityVectorExtensions.Epsilon)
{
offset *= deltaTime / Mathf.Max(m_ZDamping * kDampingScale, deltaTime);
}
newPathPosition = m_PreviousPathPosition - offset;
}
m_PreviousPathPosition = newPathPosition;
Quaternion newPathOrientation = m_Path.EvaluateOrientationAtUnit(newPathPosition, m_PositionUnits);
// Apply the offset to get the new camera position
Vector3 newCameraPos = m_Path.EvaluatePositionAtUnit(newPathPosition, m_PositionUnits);
Vector3[] offsetDir = new Vector3[3];
offsetDir[2] = newPathOrientation * Vector3.forward;
offsetDir[1] = newPathOrientation * Vector3.up;
offsetDir[0] = Vector3.Cross(offsetDir[1], offsetDir[2]);
for (int i = 0; i < 3; ++i)
{
newCameraPos += m_PathOffset[i] * offsetDir[i];
}
// Apply damping to the remaining directions
if (deltaTime > 0)
{
Vector3 currentCameraPos = m_PreviousCameraPosition;
Vector3 delta = (currentCameraPos - newCameraPos);
Vector3 delta1 = Vector3.Dot(delta, offsetDir[1]) * offsetDir[1];
Vector3 delta0 = delta - delta1;
delta = delta0 * deltaTime / Mathf.Max(m_XDamping * kDampingScale, deltaTime)
+ delta1 * deltaTime / Mathf.Max(m_YDamping * kDampingScale, deltaTime);
newCameraPos = currentCameraPos - delta;
}
curState.RawPosition = m_PreviousCameraPosition = newCameraPos;
// Set the up
switch (m_CameraUp)
{
default:
case CameraUpMode.World:
break;
case CameraUpMode.Path:
curState.ReferenceUp = newPathOrientation * Vector3.up;
curState.RawOrientation = newPathOrientation;
break;
case CameraUpMode.PathNoRoll:
curState.RawOrientation = Quaternion.LookRotation(
newPathOrientation * Vector3.forward, Vector3.up);
curState.ReferenceUp = curState.RawOrientation * Vector3.up;
break;
case CameraUpMode.FollowTarget:
if (VirtualCamera.Follow != null)
{
curState.RawOrientation = VirtualCamera.Follow.rotation;
curState.ReferenceUp = curState.RawOrientation * Vector3.up;
}
break;
case CameraUpMode.FollowTargetNoRoll:
if (VirtualCamera.Follow != null)
{
curState.RawOrientation = Quaternion.LookRotation(
VirtualCamera.Follow.rotation * Vector3.forward, Vector3.up);
curState.ReferenceUp = curState.RawOrientation * Vector3.up;
}
break;
}
}