// Converts an angle to an equivalent angle within the range with the given center.
// The range will always be 360 degrees in size.
public Angle MoveIntoInterval(Angle centerOfTheInterval)
{
IntervalFloat interval = IntervalFloat.FromCenterRadius(
centerOfTheInterval.GetDegrees(), 180.0f);
degrees = UtilPeriodic.MoveIntoInterval(degrees, interval);
return(this);
}
// Makes the oscillator progress through time by a given amount
// and then returns its amplitude at the new time.
public float SampleAmplitude(float deltaTime)
{
progress += deltaTime * speed;
/*
* while (progress > Angle.TWO_PI)
* {
* progress -= UtilCircle.TWO_PI;
* }
* while (progress < 0.0f)
* {
* progress += UtilCircle.TWO_PI;
* }
*/
progress = UtilPeriodic.MoveIntoInterval(progress, Angle.INTERVAL_UNSIGNED_RADIANS);
return(magnitude * waveform(progress));
}
// Returns the sign of the shortest rotation between the two angles.
public static int SignShortestRotation(Angle start, Angle end)
{
return(UtilPeriodic.SignShortestRotation(
start.GetDegrees(), end.GetDegrees(), INTERVAL_UNSIGNED_DEGREES));
}
// Like the approach float function, but rotates current along the shortest path
// to the target, like an angle moving along a circle towards a different angle.
public Angle Approach(Angle target, Angle stepSize)
{
degrees = UtilPeriodic.Approach(degrees, target.GetDegrees(),
stepSize.GetDegrees(), INTERVAL_UNSIGNED_DEGREES);
return(this);
}
// Returns true if the shortest path between the two given angles is a
// positive (counterclockwise on the unit circle) rotation from the start angle.
public static bool IsShortestRotationPositive(Angle start, Angle end)
{
return(UtilPeriodic.IsShortestRotationPositive(
start.GetDegrees(), end.GetDegrees(), INTERVAL_UNSIGNED_DEGREES));
}
// Returns the larger distance between the two angles.
public static Angle GetLargerDistance(Angle angle1, Angle angle2)
{
return(Angle.FromDegrees(UtilPeriodic.GetLargerDistance(
angle1.GetDegrees(), angle2.GetDegrees(), INTERVAL_UNSIGNED_DEGREES)));
}
// Converts an angle to an equivalent angle within the [0, 360) range.
public Angle MoveIntoUnsignedInterval()
{
degrees = UtilPeriodic.MoveIntoInterval(degrees, INTERVAL_UNSIGNED_DEGREES);
return(this);
}
// Mirrors an angle across the x-axis of a circle.
public Angle MirrorVertical()
{
degrees = UtilPeriodic.MirrorVertical(degrees, INTERVAL_UNSIGNED_DEGREES);
return(this);
}
// Rotates the angle by 180 degrees, effectively reversing its direction.
public Angle Reverse()
{
degrees = UtilPeriodic.Reverse(degrees, INTERVAL_UNSIGNED_DEGREES);
return(this);
}
// Returns the signed degree measure of the angle.
public float GetDegreesSigned()
{
return(UtilPeriodic.MoveIntoInterval(degrees, INTERVAL_SIGNED_DEGREES));
}
