|
public static GetPointOnCubicCurve ( float time, |
||
| time | float | |
| startPoint | ||
| endPoint | ||
| return | ||
/// <summary>
/// Add a key point at a specified index
/// </summary>
/// <param name="index">The index at which the key point will be added</param>
/// <returns>The new key point</returns>
public BezierPoint3D AddKeyPointAt(int index)
{
BezierPoint3D newPoint = new GameObject("Point " + this.KeyPoints.Count, typeof(BezierPoint3D)).GetComponent <BezierPoint3D>();
newPoint.Curve = this;
newPoint.transform.parent = this.transform;
newPoint.transform.localRotation = Quaternion.identity;
if (this.KeyPointsCount == 0 || this.KeyPointsCount == 1)
{
newPoint.LocalPosition = Vector3.zero;
}
else
{
if (index == 0)
{
newPoint.Position = (this.KeyPoints[0].Position - this.KeyPoints[1].Position).normalized + this.KeyPoints[0].Position;
}
else if (index == this.KeyPointsCount)
{
newPoint.Position = (this.KeyPoints[index - 1].Position - this.KeyPoints[index - 2].Position).normalized + this.KeyPoints[index - 1].Position;
}
else
{
newPoint.Position = BezierCurve3D.GetPointOnCubicCurve(0.5f, this.KeyPoints[index - 1], this.KeyPoints[index]);
}
}
this.KeyPoints.Insert(index, newPoint);
return(newPoint);
}
/// <summary>
/// Evaluates a position along the curve at a specified normalized time [0, 1]
/// </summary>
/// <param name="time">The normalized length at which we want to get a position [0, 1]</param>
/// <returns>The evaluated Vector3 position</returns>
public Vector3 GetPoint(float time)
{
// The evaluated points is between these two points
BezierPoint3D startPoint;
BezierPoint3D endPoint;
float timeRelativeToSegment;
this.GetCubicSegment(time, out startPoint, out endPoint, out timeRelativeToSegment);
return(BezierCurve3D.GetPointOnCubicCurve(timeRelativeToSegment, startPoint, endPoint));
}
private static BezierPoint3D AddKeyPointAt(BezierCurve3D curve, int index)
{
BezierPoint3D newPoint = new GameObject("Point " + curve.KeyPointsCount, typeof(BezierPoint3D)).GetComponent <BezierPoint3D>();
newPoint.transform.parent = curve.transform;
newPoint.transform.localRotation = Quaternion.identity;
newPoint.Curve = curve;
if (curve.KeyPointsCount == 0 || curve.KeyPointsCount == 1)
{
newPoint.LocalPosition = Vector3.zero;
}
else
{
if (index == 0)
{
newPoint.Position = (curve.KeyPoints[0].Position - curve.KeyPoints[1].Position).normalized + curve.KeyPoints[0].Position;
}
else if (index == curve.KeyPointsCount)
{
newPoint.Position = (curve.KeyPoints[index - 1].Position - curve.KeyPoints[index - 2].Position).normalized + curve.KeyPoints[index - 1].Position;
}
else
{
newPoint.Position = BezierCurve3D.GetPointOnCubicCurve(0.5f, curve.KeyPoints[index - 1], curve.KeyPoints[index]);
}
}
Undo.IncrementCurrentGroup();
Undo.RegisterCreatedObjectUndo(newPoint.gameObject, "Create Point");
Undo.RegisterCompleteObjectUndo(curve, "Save Curve");
curve.KeyPoints.Insert(index, newPoint);
RenamePoints(curve);
//Undo.RegisterCompleteObjectUndo(curve, "Save Curve");
return(newPoint);
}
