58 lines
1.7 KiB
C#
58 lines
1.7 KiB
C#
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using UnityEngine;
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using System.Collections.Generic;
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public class FireMovement : MonoBehaviour
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{
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[Tooltip("External light to flicker; you can leave this null if you attach script to a light")]
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public new Light light;
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[Tooltip("Minimum random light intensity")]
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public float minIntensity = 0f;
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[Tooltip("Maximum random light intensity")]
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public float maxIntensity = 1f;
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[Tooltip("How much to smooth out the randomness; lower values = sparks, higher = lantern")]
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[Range(1, 50)]
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public int smoothing = 5;
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// Continuous average calculation via FIFO queue
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// Saves us iterating every time we update, we just change by the delta
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Queue<float> smoothQueue;
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float lastSum = 0;
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/// <summary>
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/// Reset the randomness and start again. You usually don't need to call
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/// this, deactivating/reactivating is usually fine but if you want a strict
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/// restart you can do.
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/// </summary>
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public void Reset() {
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smoothQueue.Clear();
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lastSum = 0;
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}
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void Start() {
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smoothQueue = new Queue<float>(smoothing);
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// External or internal light?
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if (light == null) {
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light = GetComponent<Light>();
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}
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}
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void Update() {
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if (light == null)
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return;
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// pop off an item if too big
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while (smoothQueue.Count >= smoothing) {
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lastSum -= smoothQueue.Dequeue();
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}
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// Generate random new item, calculate new average
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float newVal = Random.Range(minIntensity, maxIntensity);
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smoothQueue.Enqueue(newVal);
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lastSum += newVal;
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// Calculate new smoothed average
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light.intensity = lastSum / (float)smoothQueue.Count;
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}
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}
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