public List <Vector3> SubdivideEvenly(int divisions)
{
List <Vector3> verts = new List <Vector3>();
float length = GetLength();
float deltaLength = length / divisions + 0.001f;
float t = 0.000f;
// we always start at the first control point
Vector2 start = ControlPoints[0];
Vector2 end = GetPosition(t);
// increment t until we are at half the distance
while (deltaLength * 0.5f >= Vector2.Distance(start, end))
{
end = GetPosition(t);
t += 0.0001f;
if (t >= 1f)
{
break;
}
}
start = end;
// for each box
for (int i = 1; i < divisions; i++)
{
Vector2 normal = GetPositionNormal(t);
float angle = (float)Math.Atan2(normal.y, normal.x);
verts.Add(new Vector3(end, angle));
// until we reach the correct distance down the curve
while (deltaLength >= Vector2.Distance(start, end))
{
end = GetPosition(t);
t += 0.00001f;
if (t >= 1f)
{
break;
}
}
if (t >= 1f)
{
break;
}
start = end;
}
return(verts);
}
public float GetLength()
{
List <Vector2> verts = GetVertices(ControlPoints.Count * 25);
float length = 0;
for (int i = 1; i < verts.Count; i++)
{
length += Vector2.Distance(verts[i - 1], verts[i]);
}
if (Closed)
{
length += Vector2.Distance(verts[ControlPoints.Count - 1], verts[0]);
}
return(length);
}