public static float AngleDifference(Vector3 pointOfView, Vector3 angle_1, Vector3 angle_2)
{
float deltaX = (float)Math.Sin(MathF.DegreesToRadians(angle_1.X - angle_2.X));
float deltaY = (float)Math.Sin(MathF.DegreesToRadians(angle_1.Y - angle_2.Y));
return((deltaX * deltaX + deltaY * deltaY) * pointOfView.Length());
}
public static float AngleDifference(float distance, Vector3 viewAngle, Vector3 targetAngle)
{
double pitch = Math.Sin(MathF.DegreesToRadians(viewAngle.X - targetAngle.X)) * distance;
double yaw = Math.Sin(MathF.DegreesToRadians(viewAngle.Y - targetAngle.Y)) * distance;
return((float)Math.Sqrt(pitch * pitch + yaw * yaw));
}
public static float GetFov(Vector3 viewAngle, Vector3 targetAngle, float distance)
{
double deltaX = Math.Sin(MathF.DegreesToRadians(Math.Abs(viewAngle.X - targetAngle.X)));
double deltaY = Math.Sin(MathF.DegreesToRadians(Math.Abs(viewAngle.Y - targetAngle.Y)));
return((float)Math.Sin(deltaX * deltaX + deltaY * deltaY) * distance);
}
