public CCBezierSpline Clone()
{
CCBezierSpline myResult = new CCBezierSpline();
myResult.BeginEditSpline();
_myPoints.ForEach(p => myResult._myPoints.Add(p));
myResult.EndEditSpline();
return(myResult);
}
/// <summary>
/// Interpolate a position on the spline </summary>
/// <param name="theBlend"> a value from 0 to 1 that represent the position between the first control point and the last one </param>
/// <returns> the position </returns>
public virtual CCBezierSpline SubSpline(float theBlendA, float theBlendB)
{
if (_myPoints.Count == 0)
{
return(null);
}
if (_mySegmentsLength == null || _mySegmentsLength.Count == 0)
{
return(null);
}
float myLocalBlendA;
int indexA = InterpolationValues(theBlendA, out myLocalBlendA) * _myInterpolationIncrease;
float myLocalBlendB;
int indexB = InterpolationValues(theBlendB, out myLocalBlendB) * _myInterpolationIncrease;
Vector3 inControlA;
Vector3 anchorA;
Vector3 outControlA;
Bezier(_myPoints[indexA], _myPoints[indexA + 1], _myPoints[indexA + 2], _myPoints[indexA + 3], myLocalBlendA, out inControlA, out anchorA, out outControlA);
CCBezierSpline myResult = new CCBezierSpline();
myResult.BeginEditSpline();
myResult._myPoints.Add(anchorA);
if (indexA == indexB)
{
myResult._myPoints.Add(Vector3.Lerp(anchorA, outControlA, myLocalBlendB));
}
else
{
myResult._myPoints.Add(outControlA);
}
if (indexB > indexA + 3)
{
Vector3 inControlA0 = _myPoints[indexA + 3 - 1];
Vector3 anchorA0 = _myPoints[indexA + 3];
Vector3 outControlA0 = _myPoints[indexA + 3 + 1];
myResult._myPoints.Add(Vector3.Lerp(inControlA0, anchorA0, myLocalBlendA));
myResult._myPoints.Add(anchorA0);
myResult._myPoints.Add(outControlA0);
for (int i = indexA + 6; i < indexB; i += 3)
{
Vector3 inControl = _myPoints[i - 1];
Vector3 anchor = _myPoints[i];
Vector3 outControl = _myPoints[i + 1];
myResult._myPoints.Add(inControl);
myResult._myPoints.Add(anchor);
myResult._myPoints.Add(outControl);
}
Vector3 inControlB0 = _myPoints[indexB - 1];
Vector3 anchorB0 = _myPoints[indexB];
Vector3 outControlB0 = _myPoints[indexB + 1];
myResult._myPoints.Add(inControlB0);
myResult._myPoints.Add(anchorB0);
myResult._myPoints.Add(Vector3.Lerp(anchorB0, outControlB0, myLocalBlendB));
}
else if (indexB == indexA + 3)
{
Vector3 inControlA0 = _myPoints[indexA + 3 - 1];
Vector3 anchorA0 = _myPoints[indexA + 3];
Vector3 outControlA0 = _myPoints[indexA + 3 + 1];
myResult._myPoints.Add(Vector3.Lerp(inControlA0, anchorA0, myLocalBlendA));
myResult._myPoints.Add(anchorA0);
myResult._myPoints.Add(Vector3.Lerp(anchorA0, outControlA0, myLocalBlendB));
}
Vector3 inControlB;
Vector3 anchorB;
Vector3 outControlB;
Bezier(_myPoints[indexB], _myPoints[indexB + 1], _myPoints[indexB + 2], _myPoints[indexB + 3], myLocalBlendB, out inControlB, out anchorB, out outControlB);
if (indexA == indexB)
{
myResult._myPoints.Add(Vector3.Lerp(inControlB, anchorB, myLocalBlendA));
}
else
{
myResult._myPoints.Add(inControlB);
}
myResult._myPoints.Add(anchorB);
myResult.EndEditSpline();
return(myResult);
}