public List<Vector2> TranslateTo(Vector2 point)
{
Vector2 center = Gesture.GetCenter(this.Points);
List<Vector2> translatedPoints = new List<Vector2>();
for (int i = 0; i < this.Points.Count; i++)
{
float x = this.Points[i].x + point.x - center.x;
float y = this.Points[i].y + point.y - center.y;
translatedPoints.Add(new Vector2(x, y));
}
return translatedPoints;
}
public List<Vector2> RotateBy(float angle)
{
Vector2 center = Gesture.GetCenter(this.Points);
float cos = Mathf.Cos(angle);
float sin = Mathf.Sin(angle);
List<Vector2> rotatedPoints = new List<Vector2>();
for (int i = 0; i < this.Points.Count; i++)
{
float x = (this.Points[i].x - center.x) * cos - (this.Points[i].y - center.y) * sin + center.x;
float y = (this.Points[i].x - center.x) * sin + (this.Points[i].y - center.y) * cos + center.y;
rotatedPoints.Add(new Vector2(x, y));
}
return rotatedPoints;
}
public static float GetIndicativeAngle(List<Vector2> points)
{
Vector2 centroid = Gesture.GetCenter(points);
return Mathf.Atan2(centroid.y - points[0].y, centroid.x - points[0].x);
}
