public void AddSegment(Vector2 anchorPos)
{
points.Add(new Point(points[points.Count - 1].Position * 2 - points[points.Count - 2].Position, PointType.Handle));
points.Add(new Point((points[points.Count - 1].Position + anchorPos) * .5f, PointType.Handle));
points.Add(new Point(anchorPos, PointType.Point));
length = PathCreator.ApproxBezierLength(this);
}
public void MovePoint(int i, Vector2 pos)
{
Vector2 deltaMove = pos - points[i].Position;
points[i].Position = pos;
if (i % 3 == 0)
{
if (i + 1 < points.Count)
{
points[i + 1].Position += deltaMove;
}
if (i - 1 >= 0)
{
points[i - 1].Position += deltaMove;
}
}
else
{
bool nextPointIsAnchor = (i + 1) % 3 == 0;
int correspondingControlIndex = (nextPointIsAnchor) ? i + 2 : i - 2;
int anchorIndex = (nextPointIsAnchor) ? i + 1 : i - 1;
if (correspondingControlIndex >= 0 && correspondingControlIndex < points.Count)
{
float dst = (points[anchorIndex].Position - points[correspondingControlIndex].Position).magnitude;
Vector2 dir = (points[anchorIndex].Position - pos).normalized;
points[correspondingControlIndex].Position = points[anchorIndex].Position + dir * dst;
}
}
length = PathCreator.ApproxBezierLength(this);
}
public Path(Vector2 centre)
{
points = new List <Point>
{
new Point(centre + Vector2.left, PointType.Point),
new Point(centre + (Vector2.left + Vector2.up) * .5f, PointType.Handle),
new Point(centre + (Vector2.right + Vector2.down) * .5f, PointType.Handle),
new Point(centre + Vector2.right, PointType.Point)
};
length = PathCreator.ApproxBezierLength(this);
}