Rough draw spherecast debug code using lines

DebugExt.cs

public static void DrawSphereCast(Vector3 origin, float radius, Color color, float duration = 0.1f) {

  for(int x = -1; x < 2; x++)
      for(int y = -1; y < 2; y++)
          for (int z = -1; z < 2; z++) {
              Vector3 end = origin + new Vector3(x, y, z) * radius;
              Debug.DrawLine(origin, end, color, duration);
          }

}