void Update()
{
// star path
List <Vector2> pts = new List <Vector2>();
List <Vector2> normals = new List <Vector2>();
for (int i = 0; i < numPts * 2; i++)
{
int l = i % 2 == 1 ? 10 : 20;
float a = (float)i / numPts * Mathf.PI;
pts.Add(new Vector2(Mathf.Cos(a) * l, Mathf.Sin(a) * l));
}
for (int i = 0; i < pts.Count; i++)
{
int endI = (i == pts.Count - 1) ? 0 : i + 1;
Vector2 vec = pts[endI] - pts[i];
vec.Normalize();
normals.Add(new Vector2(vec.y, -vec.x));
}
startShape = new Shape(pts, normals);
// random path
List <Vector3> randomPoints = new List <Vector3>();
float time = Time.time * speedAmp;
for (int i = 0; i < 20; i++)
{
float t = 2.0f * i + time;
randomPoints.Add(new Vector3((i) * 50, 50 * Mathf.Sin(t), 0));
//randomPoints.Add( new Vector3( ( i ) * 50, 0, 0 ) );
}
randomSpline = new SplineCurve3(randomPoints);
List <Vector3> extrudePts = randomSpline.getSpacedPoints(step);
for (int i = 0; i < extrudePts.Count; i++)
{
Vector3 pt = extrudePts[i];
Debug.DrawRay(pt, Vector3.one * 2.0f, Color.yellow);
}
// extrudeSettings = new THREE.ExtrudeGeometry.Option();
extrudeSettings.steps = step;
extrudeSettings.bevelEnabled = false;
extrudeSettings.extrudePath = randomSpline;
extrudeSettings.frames = new THREE.TubeGeometry.FrenetFrames(randomSpline, step, false);
// THREE.Geometry extrudeGeo = new THREE.ExtrudeGeometry( new List<Shape>(new Shape[]{ startShape }), extrudeSettings );
// if(shapeAndHole == null){
shapeAndHole = ExtrudeGeometry.GetShapeAndHoleObject(startShape, extrudeSettings);
// }
extrudeGeo.UpdateShape(shapeAndHole, extrudeSettings);
UnityEngine.Mesh mesh = extrudeGeo.CreateAndGetMesh();
meshFilter.mesh = mesh;
}
