using System;

namespace SFXR;

public class SFXRFrequency
{
    /// <summary>
    /// Base tone of the sound, before sliding
    /// (Default: 400, Range: 0 - 3000)
    /// </summary>
    public SFXRFloat Start { get; set; } = 400;

    /// <summary>
    /// Amount by which the frequency is increased or decreased over time
    /// (Default: 0, Range: -3000 - 3000)
    /// </summary>
    public SFXRFloat Slide { get; set; } = 0;

    /// <summary>
    /// Amount by which the slide is increased or decreased over time
    /// (Default: 0, Range: -3000 - 3000)
    /// </summary>
    public SFXRFloat DeltaSlide { get; set; } = 0;

    /// <summary>
    /// Gets the frequency at a given time
    /// </summary>
    /// <param name="time"></param>
    /// <returns>The frequency in Hz</returns>
    public float GetFrequency( float time )
    {
        // Calculate the frequency
        float frequency = Start + Slide * time + DeltaSlide * time * time;

        return frequency;
    }
}