/// <summary>
/// return points array along circle from start point
/// </summary>
/// <param name="startPoint"></param>
/// <param name="center">rotate center</param>
/// <param name="angle">degree</param>
/// <param name="step"></param>
/// <param name="pointsCount"></param>
/// <returns></returns>
public static Vector3[] CirclePointsAroundZ(Vector3 startPoint, Vector3 center, float degAngle, int pointsCount)
{
Vector3[] cList = new Vector3[pointsCount];
cList[0] = startPoint;
float radAngle = degAngle * Mathf.Deg2Rad;
// float startAngle = Mathf.Deg2Rad * Vector2.Angle((startPoint - center), Vector2.right);
float startAngle = Mathf.Deg2Rad * MathMk.GetFullAngleOX((startPoint - center));
float cRadius = Vector3.Distance(startPoint, center);
float dAngle = radAngle / (pointsCount);
for (int i = 1; i < pointsCount; i++)
{
float newAngle = startAngle + i * dAngle;
Vector3 pos = center + cRadius * new Vector3(Mathf.Cos(newAngle), Mathf.Sin(newAngle), 0);
cList[i] = pos;
}
return(cList);
}
/// <summary>
/// Return array of points on arc inbetween two degree angles
/// </summary>
/// <param name="center"></param>
/// <param name="circleRadius"></param>
/// <param name="startAngle"></param>
/// <param name="endAngle"></param>
/// <param name="pointsCount"></param>
/// <returns></returns>
public static Vector3[] ArcPoints(Vector3 center, float circleRadius, Vector2 startDirection, Vector2 endDirection, int pointsCount)
{
float radStart = Mathf.Deg2Rad * MathMk.GetFullAngleOX(startDirection);
Debug.Log("startAngle" + MathMk.GetFullAngleOX(startDirection));
if (pointsCount == 0 || pointsCount == 1 || startDirection == endDirection)
{
return(new Vector3[] { new Vector3(Mathf.Cos(radStart), Mathf.Sin(radStart), 0) * circleRadius });
}
Vector3[] result = new Vector3[pointsCount];
float radEnd = Mathf.Deg2Rad * MathMk.GetFullAngleOX(endDirection);
Debug.Log("endAngle" + MathMk.GetFullAngleOX(endDirection));
float dAngle = (radEnd - radStart) / (pointsCount - 1);
for (int i = 0; i < pointsCount; i++)
{
float currAngle = radStart + i * dAngle;
result[i] = center + new Vector3(Mathf.Cos(currAngle), Mathf.Sin(currAngle), 0) * circleRadius;
}
return(result);
}
