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72 lines
2.4 KiB
C#
72 lines
2.4 KiB
C#
3 months ago
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// Copyright (c) Meta Platforms, Inc. and affiliates.
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using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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namespace Lofelt.NiceVibrations
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{
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/// <summary>
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/// This class lets you output the value corresponding to one of the basic signal types it contains. Useful to draw basic signal curves.
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/// </summary>
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public class MMSignal : MonoBehaviour
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{
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public enum SignalType
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{
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DigitalNoise,
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Pulse,
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Sawtooth,
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Sine,
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Square,
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Triangle,
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WhiteNoise
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}
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/// <summary>
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/// Returns the corresponding value based on the selected SignalType for a given time value
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/// </summary>
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/// <param name="time"></param>
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/// <param name="signalType"></param>
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/// <param name="phase"></param>
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/// <param name="amplitude"></param>
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/// <param name="frequency"></param>
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/// <param name="offset"></param>
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/// <param name="Invert"></param>
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/// <returns></returns>
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public static float GetValue(float time, SignalType signalType, float phase, float amplitude, float frequency, float offset, bool Invert = false)
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{
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float value = 0f;
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float invert = Invert ? -1 : 1;
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float t = frequency * time + phase;
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switch (signalType)
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{
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case SignalType.Sine:
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value = (float)Mathf.Sin(2f * Mathf.PI * t);
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break;
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case SignalType.Square:
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value = Mathf.Sign(Mathf.Sin(2f * Mathf.PI * t));
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break;
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case SignalType.Triangle:
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value = 1f - 4f * (float)Mathf.Abs(Mathf.Round(t - 0.25f) - (t - 0.25f));
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break;
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case SignalType.Sawtooth:
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value = 2f * (t - (float)Mathf.Floor(t + 0.5f));
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break;
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case SignalType.Pulse:
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value = (Mathf.Abs(Mathf.Sin(2 * Mathf.PI * t)) < 1.0 - 10E-3) ? (0) : (1);
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break;
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case SignalType.WhiteNoise:
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value = 2f * Random.Range(0, int.MaxValue) / int.MaxValue - 1f;
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break;
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case SignalType.DigitalNoise:
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value = Random.Range(0, 2);
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break;
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}
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return (invert * amplitude * value + offset);
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}
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}
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}
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