smart-bow-infrared/Assets/FruitMaster/Scripts/FullscreenClearBubbleBehavior.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class FullscreenClearBubbleBehavior : MonoBehaviour
{
    const float SpreadSpeed = 120f;
    const float Lifetime = 2f;
    float Age = 0f;
    private SphereCollider ClearCollider;

    // Start is called before the first frame update
    void Start()
    {
        ClearCollider = gameObject.GetComponent<SphereCollider>();
    }

    // Update is called once per frame
    void Update()
    {
        Age += Time.deltaTime;
        if (Age > Lifetime)
        {
            Destroy(gameObject);
            return;
        }

        float radius = SpreadSpeed * Time.deltaTime;
        ClearCollider.radius += radius;
    }
}