void SamplePath(int stepsPerSegment)
{
curve = new AnimationCurve();
float minPos = path.MinPos;
float maxPos = path.MaxPos;
float stepSize = 1f / Mathf.Max(1, stepsPerSegment);
pathLength = 0;
Vector3 p0 = path.EvaluatePosition(0);
curve.AddKey(new Keyframe(0, 0));
for (float pos = minPos + stepSize; pos < (maxPos + stepSize / 2); pos += stepSize)
{
Vector3 p = path.EvaluatePosition(pos);
pathLength += Vector3.Distance(p0, p);
curve.AddKey(new Keyframe(pathLength, pos));
p0 = p;
}
for (int i = 0; i < curve.keys.Length; i++)
{
// TODO: replace this with something that does not depend on editor
AnimationUtility.SetKeyLeftTangentMode(curve, i, AnimationUtility.TangentMode.Linear);
AnimationUtility.SetKeyRightTangentMode(curve, i, AnimationUtility.TangentMode.Linear);
}
}
internal static void DrawPathGizmos(CinemachinePath path, GizmoType selectionType)
{
// Draw the path
Color colorOld = Gizmos.color;
Gizmos.color = (Selection.activeGameObject == path.gameObject)
? path.m_Appearance.pathColor : path.m_Appearance.inactivePathColor;
float step = 1f / path.m_Appearance.steps;
Vector3 lastPos = path.EvaluatePosition(path.MinPos);
Vector3 lastW = (path.EvaluateOrientation(path.MinPos)
* Vector3.right) * path.m_Appearance.width / 2;
for (float t = path.MinPos + step; t <= path.MaxPos + step / 2; t += step)
{
Vector3 p = path.EvaluatePosition(t);
Vector3 w = (path.EvaluateOrientation(t) * Vector3.right) * path.m_Appearance.width / 2;
Vector3 w2 = w * 1.2f;
Vector3 p0 = p - w2;
Vector3 p1 = p + w2;
Gizmos.DrawLine(p0, p1);
Gizmos.DrawLine(lastPos - lastW, p - w);
Gizmos.DrawLine(lastPos + lastW, p + w);
lastPos = p;
lastW = w;
}
Gizmos.color = colorOld;
}
void SetCartPosition(float distanceAlongPath)
{
if (m_Path == null)
{
return;
}
m_CurrentDistance = m_Path.NormalizePathDistance(distanceAlongPath);
float pathPos = m_Path.GetPathPositionFromDistance(m_CurrentDistance);
transform.position = m_Path.EvaluatePosition(pathPos);
transform.rotation = m_Path.EvaluateOrientation(pathPos);
}
internal static void DrawPathGizmos(CinemachinePath path, GizmoType selectionType)
{
// Draw the path
Color colorOld = Gizmos.color;
Gizmos.color = (Selection.activeGameObject == path.gameObject)
? path.m_Appearance.pathColor : path.m_Appearance.inactivePathColor;
float step = 1f / path.m_Resolution;
Vector3 lastPos = path.EvaluatePosition(path.MinPos);
Vector3 lastW = (path.EvaluateOrientation(path.MinPos)
* Vector3.right) * path.m_Appearance.width / 2;
for (float t = path.MinPos + step; t <= path.MaxPos + step / 2; t += step)
{
Vector3 p = path.EvaluatePosition(t);
Quaternion q = path.EvaluateOrientation(t);
Vector3 w = (q * Vector3.right) * path.m_Appearance.width / 2;
Vector3 w2 = w * 1.2f;
Vector3 p0 = p - w2;
Vector3 p1 = p + w2;
Gizmos.DrawLine(p0, p1);
Gizmos.DrawLine(lastPos - lastW, p - w);
Gizmos.DrawLine(lastPos + lastW, p + w);
#if false
// Show the normals, for debugging
Gizmos.color = Color.red;
Vector3 y = (q * Vector3.up) * path.m_Appearance.width / 2;
Gizmos.DrawLine(p, p + y);
Gizmos.color = (Selection.activeGameObject == path.gameObject)
? path.m_Appearance.pathColor : path.m_Appearance.inactivePathColor;
#endif
lastPos = p;
lastW = w;
}
Gizmos.color = colorOld;
}
