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using System.Collections;
using System.Collections.Generic;
using UnityEngine;
[RequireComponent(typeof(Light))]
public class LightFlicker : MonoBehaviour
{
[Tooltip("Base Brightness of the flickering light (used when Normality happens)")]
[Range(0.0f, 8.0f)]
public float baseBrightness = 1.0f;
[Tooltip("Intensity of the periodic brightness fluctuations")]
[Range(0.0f, 10.0f)]
public float oscillationIntensity = 2.0f;
[Tooltip("Frequency of the periodic brightness fluctuations")]
[Range(0.0f, 100.0f)]
public float oscillationSpeed = 44.0f;
[Tooltip("Intensity of the random brightness flicker")]
[Range(0.0f, 10.0f)]
public float flickerIntensity = 2.0f;
[Tooltip("Frequency of the random brightness flicker")]
[Range(0.0f, 1.0f)]
public float flickerSpeed = 0.1f;
[Tooltip("Off vs On-percentage of the random brightness flicker")]
[Range(0.0f, 1.0f)]
public float flickerOffVsOn = 0.5f;
[Tooltip("Frequency of the normality effect (where flicker and oscillations are switched off)")]
[Range(0.0f, 1.0f)]
public float normalitySpeed = 0.1f;
[Tooltip("Likelyhood of the normality effect to happen (where flicker and oscillations are switched off)")]
[Range(0.0f, 1.0f)]
public float normalityLikelyhood = 0.5f;
float randomWalk = 0.0f;
float flickerBrightness = 0.0f;
float upperBound = 1.0f;
float lowerBound = -1.0f;
float oscillationBrightness = 0.0f;
float randomWalk2 = 0.0f;
float upperBound2 = 1.0f;
float lowerBound2 = 0.0f;
Light thisLight;
// Start is called before the first frame update
void Start()
{
thisLight = this.gameObject.GetComponent<Light>();
}
// Update is called once per frame
void Update()
{
// Flicker
randomWalk += Random.Range(-flickerSpeed, flickerSpeed);
if (randomWalk >= upperBound) { randomWalk = upperBound; }
if (randomWalk <= lowerBound) { randomWalk = lowerBound; }
flickerBrightness = (randomWalk * flickerIntensity) + (-8.0f + flickerOffVsOn * 16.0f) * flickerIntensity;
// Oscillation
oscillationBrightness = ((Mathf.PingPong(Time.time*oscillationSpeed, 8.0f) * Mathf.PingPong(Time.time*oscillationSpeed*1.131517f,4.0f)) - 4.0f) * oscillationIntensity*0.1f;
// Normality
randomWalk2 += Random.Range(-normalitySpeed * 0.2f, normalitySpeed * 0.2f);
if (randomWalk2 >= upperBound2) { randomWalk2 = upperBound2; }
if (randomWalk2 <= lowerBound2) { randomWalk2 = lowerBound2; }
if (randomWalk2 <= normalityLikelyhood)
{
thisLight.intensity = baseBrightness;
} else {
thisLight.intensity = baseBrightness + flickerBrightness + oscillationBrightness;
}
}
}