internal static float BezierLength(NativeArray <ShapeControlPoint> shapePoints, int splineDetail)
{
// Expand the Bezier.
int controlPointContour = shapePoints.Length - 1;
float spd = 0;
float fmax = (float)(splineDetail - 1);
for (int i = 0; i < controlPointContour; ++i)
{
int j = i + 1;
ShapeControlPoint cp = shapePoints[i];
ShapeControlPoint pp = shapePoints[j];
Vector3 p0 = cp.position;
Vector3 p1 = pp.position;
Vector3 sp = p0;
Vector3 rt = p0 + cp.rightTangent;
Vector3 lt = p1 + pp.leftTangent;
for (int n = 0; n < splineDetail; ++n)
{
float t = (float)n / fmax;
Vector3 bp = BezierPoint(rt, p0, p1, lt, t);
spd += math.distance(bp, sp);
sp = bp;
}
}
return(spd);
}
public void SetTangentMode(int index, ShapeTangentMode mode)
{
ShapeControlPoint newPoint = m_ControlPoints[index];
newPoint.mode = mode;
m_ControlPoints[index] = newPoint;
}
public void SetPosition(int index, Vector3 point)
{
if (!IsPositionValid(index, index + 1, point))
{
throw new ArgumentException("Internal error: Point too close to neighbor");
}
ShapeControlPoint newPoint = m_ControlPoints[index];
newPoint.position = point;
m_ControlPoints[index] = newPoint;
}
public void SetPosition(int index, Vector3 point)
{
if (!IsPositionValid(index, index + 1, point))
{
throw new ArgumentException(KErrorMessage);
}
ShapeControlPoint newPoint = m_ControlPoints[index];
newPoint.position = point;
m_ControlPoints[index] = newPoint;
}
public void SetRightTangent(int index, Vector3 tangent)
{
ShapeTangentMode mode = GetTangentMode(index);
if (mode == ShapeTangentMode.Linear)
{
return;
}
ShapeControlPoint newPoint = m_ControlPoints[index];
newPoint.rightTangent = tangent;
m_ControlPoints[index] = newPoint;
}
// Start is called before the first frame update
void Start()
{
_spriteShapeController = GetComponent <SpriteShapeController>();
var a = new UnityEngine.U2D.ShapeControlPoint();
}