using UnityEngine;

[System.Serializable]
public class ParallaxLayerConfig
{
    public GameObject layer; // 背景层的游戏对象
    public float scrollSpeed; // 每层的滚动速度

    public float scrollOffset;
}

public class ParallaxManager : MonoBehaviour
{
    public ParallaxLayerConfig[] layerConfigs; // 背景层配置数组
    //public float scrollOffset = 39.69f;            // 背景循环的偏移量
    

    void Update()
    {
        foreach (var config in layerConfigs)
        {
            // 根据配置的速度滚动背景
            float parallax = config.scrollSpeed * Time.deltaTime;
            config.layer.transform.position += new Vector3(-parallax, 0, 0);

            // 如果背景移出视野范围，则将其重新放到另一边
            if (config.layer.transform.position.x <= -config.scrollOffset)
            {
                config.layer.transform.position = new Vector3(config.layer.transform.position.x + 2 * config.scrollOffset, config.layer.transform.position.y, config.layer.transform.position.z);
            }
        }
    }
}