protected virtual void OnEnable()
{
this.point = (BezierPoint3D)this.target;
this.handleType = this.serializedObject.FindProperty("handleType");
this.leftHandleLocalPosition = this.serializedObject.FindProperty("leftHandleLocalPosition");
this.rightHandleLocalPosition = this.serializedObject.FindProperty("rightHandleLocalPosition");
}
private static void AddDefaultPoints(BezierCurve3D curve)
{
BezierPoint3D startPoint = curve.AddKeyPoint();
startPoint.LocalPosition = new Vector3(-1f, 0f, 0f);
startPoint.LeftHandleLocalPosition = new Vector3(-0.35f, -0.35f, 0f);
BezierPoint3D endPoint = curve.AddKeyPoint();
endPoint.LocalPosition = new Vector3(1f, 0f, 0f);
endPoint.LeftHandleLocalPosition = new Vector3(-0.35f, 0.35f, 0f);
}
public static void DrawPointsSceneGUI(BezierCurve3D curve, BezierPoint3D exclude = null)
{
for (int i = 0; i < curve.KeyPointsCount; i++)
{
if (curve.KeyPoints[i] == exclude)
{
continue;
}
BezierPoint3DEditor.handleCapSize = BezierPoint3DEditor.CircleCapSize;
BezierPoint3DEditor.DrawPointSceneGUI(curve.KeyPoints[i]);
}
}
public static void DrawPointsSceneGUI(BezierCurve3D curve, BezierPoint3D exclude = null)
{
for (int i = 0; i < curve.KeyPointsCount; i++)
{
if (curve.KeyPoints[i] == exclude)
{
continue;
}
BezierPoint3DEditor.handleCapSize = BezierPoint3DEditor.CircleCapSize;
BezierPoint3DEditor.DrawPointSceneGUI(curve.KeyPoints[i]);
}
}
public static void DrawPointSceneGUI(BezierPoint3D point, Handles.DrawCapFunction drawPointFunc, Handles.DrawCapFunction drawHandleFunc)
{
// Draw a label for the point
Handles.color = Color.black;
Handles.Label(point.Position + new Vector3(0f, HandleUtility.GetHandleSize(point.Position) * 0.4f, 0f), point.gameObject.name);
// Draw the center of the control point
Handles.color = Color.yellow;
Vector3 newPointPosition = Handles.FreeMoveHandle(point.Position, point.transform.rotation,
HandleUtility.GetHandleSize(point.Position) * BezierPoint3DEditor.pointCapSize, Vector3.one * 0.5f, drawPointFunc);
if (point.Position != newPointPosition)
{
Undo.RegisterCompleteObjectUndo(point.transform, "Move Point");
point.Position = newPointPosition;
}
// Draw the left and right handles
Handles.color = Color.white;
Handles.DrawLine(point.Position, point.LeftHandlePosition);
Handles.DrawLine(point.Position, point.RightHandlePosition);
Handles.color = Color.cyan;
Vector3 newLeftHandlePosition = Handles.FreeMoveHandle(point.LeftHandlePosition, point.transform.rotation,
HandleUtility.GetHandleSize(point.LeftHandlePosition) * BezierPoint3DEditor.handleCapSize, Vector3.zero, drawHandleFunc);
if (point.LeftHandlePosition != newLeftHandlePosition)
{
Undo.RegisterCompleteObjectUndo(point, "Move Left Handle");
point.LeftHandlePosition = newLeftHandlePosition;
}
Vector3 newRightHandlePosition = Handles.FreeMoveHandle(point.RightHandlePosition, point.transform.rotation,
HandleUtility.GetHandleSize(point.RightHandlePosition) * BezierPoint3DEditor.handleCapSize, Vector3.zero, drawHandleFunc);
if (point.RightHandlePosition != newRightHandlePosition)
{
Undo.RegisterCompleteObjectUndo(point, "Move Right Handle");
point.RightHandlePosition = newRightHandlePosition;
}
}
public static void DrawPointSceneGUI(BezierPoint3D point, Handles.DrawCapFunction drawPointFunc, Handles.DrawCapFunction drawHandleFunc)
{
// Draw a label for the point
Handles.color = Color.black;
Handles.Label(point.Position + new Vector3(0f, HandleUtility.GetHandleSize(point.Position) * 0.4f, 0f), point.gameObject.name);
// Draw the center of the control point
Handles.color = Color.yellow;
Vector3 newPointPosition = Handles.FreeMoveHandle(point.Position, point.transform.rotation,
HandleUtility.GetHandleSize(point.Position) * BezierPoint3DEditor.pointCapSize, Vector3.one * 0.5f, drawPointFunc);
if (point.Position != newPointPosition)
{
Undo.RegisterCompleteObjectUndo(point.transform, "Move Point");
point.Position = newPointPosition;
}
// Draw the left and right handles
Handles.color = Color.white;
Handles.DrawLine(point.Position, point.LeftHandlePosition);
Handles.DrawLine(point.Position, point.RightHandlePosition);
Handles.color = Color.cyan;
Vector3 newLeftHandlePosition = Handles.FreeMoveHandle(point.LeftHandlePosition, point.transform.rotation,
HandleUtility.GetHandleSize(point.LeftHandlePosition) * BezierPoint3DEditor.handleCapSize, Vector3.zero, drawHandleFunc);
if (point.LeftHandlePosition != newLeftHandlePosition)
{
Undo.RegisterCompleteObjectUndo(point, "Move Left Handle");
point.LeftHandlePosition = newLeftHandlePosition;
}
Vector3 newRightHandlePosition = Handles.FreeMoveHandle(point.RightHandlePosition, point.transform.rotation,
HandleUtility.GetHandleSize(point.RightHandlePosition) * BezierPoint3DEditor.handleCapSize, Vector3.zero, drawHandleFunc);
if (point.RightHandlePosition != newRightHandlePosition)
{
Undo.RegisterCompleteObjectUndo(point, "Move Right Handle");
point.RightHandlePosition = newRightHandlePosition;
}
}
public void GetCubicSegment(float time, out BezierPoint3D startPoint, out BezierPoint3D endPoint, out float timeRelativeToSegment)
{
startPoint = null;
endPoint = null;
timeRelativeToSegment = 0f;
float subCurvePercent = 0f;
float totalPercent = 0f;
float approximateLength = GetApproximateLength();
int subCurveSampling = (Sampling / (KeyPointsCount - 1)) + 1;
for (int i = 0; i < KeyPointsCount - 1; i++)
{
subCurvePercent = GetApproximateLengthOfCubicCurve(KeyPoints[i], KeyPoints[i + 1], subCurveSampling) / approximateLength;
if (subCurvePercent + totalPercent > time)
{
startPoint = KeyPoints[i];
endPoint = KeyPoints[i + 1];
break;
}
totalPercent += subCurvePercent;
}
if (endPoint == null)
{
// If the evaluated point is very near to the end of the curve we are in the last segment
startPoint = KeyPoints[KeyPointsCount - 2];
endPoint = KeyPoints[KeyPointsCount - 1];
// We remove the percentage of the last sub-curve
totalPercent -= subCurvePercent;
}
timeRelativeToSegment = (time - totalPercent) / subCurvePercent;
}
public static Quaternion GetRotationOnCubicCurve(float time, Vector3 up, BezierPoint3D startPoint, BezierPoint3D endPoint)
{
return GetRotationOnCubicCurve(time, up, startPoint.Position, endPoint.Position, startPoint.RightHandlePosition, endPoint.LeftHandlePosition);
}
public static void DrawPointSceneGUI(BezierPoint3D point)
{
DrawPointSceneGUI(point, Handles.RectangleCap, Handles.CircleCap);
}
public void GetCubicSegment(float time, out BezierPoint3D startPoint, out BezierPoint3D endPoint, out float timeRelativeToSegment)
{
startPoint = null;
endPoint = null;
timeRelativeToSegment = 0f;
float subCurvePercent = 0f;
float totalPercent = 0f;
float approximateLength = this.GetApproximateLength();
int subCurveSampling = (this.Sampling / (this.KeyPointsCount - 1)) + 1;
for (int i = 0; i < this.KeyPointsCount - 1; i++)
{
subCurvePercent = BezierCurve3D.GetApproximateLengthOfCubicCurve(this.KeyPoints[i], this.KeyPoints[i + 1], subCurveSampling) / approximateLength;
if (subCurvePercent + totalPercent > time)
{
startPoint = this.KeyPoints[i];
endPoint = this.KeyPoints[i + 1];
break;
}
totalPercent += subCurvePercent;
}
if (endPoint == null)
{
// If the evaluated point is very near to the end of the curve
startPoint = this.KeyPoints[this.KeyPointsCount - 2];
endPoint = this.KeyPoints[this.KeyPointsCount - 1];
totalPercent -= subCurvePercent; // We remove the percentage of the last sub-curve
}
timeRelativeToSegment = (time - totalPercent) / subCurvePercent;
}
public static float GetApproximateLengthOfCubicCurve(BezierPoint3D startPoint, BezierPoint3D endPoint, int sampling)
{
return GetApproximateLengthOfCubicCurve(startPoint.Position, endPoint.Position, startPoint.RightHandlePosition, endPoint.LeftHandlePosition, sampling);
}
public static Vector3 GetNormalOnCubicCurve(float time, Vector3 up, BezierPoint3D startPoint, BezierPoint3D endPoint)
{
return GetNormalOnCubicCurve(time, up, startPoint.Position, endPoint.Position, startPoint.RightHandlePosition, endPoint.LeftHandlePosition);
}
public static Quaternion GetRotationOnCubicCurve(float time, Vector3 up, BezierPoint3D startPoint, BezierPoint3D endPoint)
{
return(GetRotationOnCubicCurve(time, up, startPoint.Position, endPoint.Position, startPoint.RightHandlePosition, endPoint.LeftHandlePosition));
}
public static Vector3 GetTangentOnCubicCurve(float time, BezierPoint3D startPoint, BezierPoint3D endPoint)
{
return(GetTangentOnCubicCurve(time, startPoint.Position, endPoint.Position, startPoint.RightHandlePosition, endPoint.LeftHandlePosition));
}
protected virtual void OnEnable()
{
this.point = (BezierPoint3D)this.target;
this.handleType = this.serializedObject.FindProperty("handleType");
this.leftHandleLocalPosition = this.serializedObject.FindProperty("leftHandleLocalPosition");
this.rightHandleLocalPosition = this.serializedObject.FindProperty("rightHandleLocalPosition");
}
public static Vector3 GetTangentOnCubicCurve(float time, BezierPoint3D startPoint, BezierPoint3D endPoint)
{
return GetTangentOnCubicCurve(time, startPoint.Position, endPoint.Position, startPoint.RightHandlePosition, endPoint.LeftHandlePosition);
}
public static void DrawPointSceneGUI(BezierPoint3D point)
{
DrawPointSceneGUI(point, Handles.RectangleCap, Handles.CircleCap);
}
public static float GetApproximateLengthOfCubicCurve(BezierPoint3D startPoint, BezierPoint3D endPoint, int sampling)
{
return GetApproximateLengthOfCubicCurve(startPoint.Position, endPoint.Position, startPoint.RightHandlePosition, endPoint.LeftHandlePosition, sampling);
}
public static Vector3 GetBinormalOnCubicCurve(float time, Vector3 up, BezierPoint3D startPoint, BezierPoint3D endPoint)
{
return GetBinormalOnCubicCurve(time, up, startPoint.Position, endPoint.Position, startPoint.RightHandlePosition, endPoint.LeftHandlePosition);
}
