/// <summary>
/// Returns a path of zigzaguing points.
/// </summary>
/// <param name="origin">Origin of the path.</param>
/// <param name="direction">Direction in which the path extents.</param>
/// <param name="deviation">Deviation of the path center from the origin. Values on range [-1, 1]: first point, center, first turning point.</param>
/// <param name="extent">Length of the path.</param>
/// <param name="amplitude">Distance between the two sides of the zigzag.</param>
/// <param name="turns">Number of turning points of the path.</param>
/// <param name="subdivisions">Number of divisions of the vector represented by two turning points.</param>
/// <param name="rotation">Rotation of the path around the direction vector.</param>
/// <returns></returns>
public static List <Vector3> Zigzag(Vector3 origin, Vector3 direction, int deviation, float extent, float amplitude, int turns, int subdivisions, float rotation)
{
Components.Plane plane = new Components.Plane(direction);
float width = amplitude / 2;
float span = extent / (turns - 1);
float horizontalDeviation = width * Mathf.Clamp(deviation, -1, 1);
float vectorDirection = 1;
List <Vector3> vectors = new List <Vector3>();
for (int i = 0; i < turns; i++)
{
Vector3 point = new Vector3();
point.x = vectorDirection * width + horizontalDeviation;
point.y = 0f;
point.z = span * i;
point = plane.Rotate(point, rotation, Components.Plane.Axis.N);
point = origin + plane.TransformPoint(point);
vectors.Add(point);
vectorDirection = -vectorDirection;
}
if (subdivisions <= 1)
{
return(vectors);
}
List <Vector3> points = new List <Vector3>();
for (int i = 1; i < vectors.Count; i++)
{
List <Vector3> dividedVector = Subdivide(vectors[i - 1], vectors[i], subdivisions);
points.AddRange(dividedVector);
}
points = points.Distinct().ToList();
return(points);
}
/// <summary>
/// Returns points in a defined wave.
/// </summary>
/// <param name="origin">Origin of the wave.</param>
/// <param name="direction">Direction in which the wave spans.</param>
/// <param name="extent">Length of th wave.</param>
/// <param name="amplitude">Amplitude of the wave; the distance between opposing peaks.</param>
/// <param name="frequency">Frecuency of periods in the wave.</param>
/// <param name="points">Points to draw accross the wave.</param>
/// <param name="rotation">Rotation of the wave around the direction vector.</param>
/// <returns></returns>
public static List <Vector3> Wave(Vector3 origin, Vector3 direction, float extent, float amplitude, float frequency, int points, float rotation)
{
Components.Plane plane = new Components.Plane(direction);
float separation = extent / (points - 1);
List <Vector3> wavePoints = new List <Vector3>();
for (int i = 0; i < points; i++)
{
Vector3 point = new Vector3();
point.x = amplitude * Mathf.Sin(frequency * (separation * i));
point.y = 0f;
point.z = separation * i;
point = plane.Rotate(point, rotation, Components.Plane.Axis.N);
point = origin + plane.TransformPoint(point);
wavePoints.Add(point);
}
return(wavePoints);
}
