using UnityEngine;
//============================================================
//支持中文，文件使用UTF-8编码
//@author	Adam
//@create	20221005
//@company	Umawerse
//
//@description:
//============================================================

public class DistanceAdjuster : MonoBehaviour
{
    private float minDistance = 10;
    private float maxDistance = 120;
    private float minScale = 0.3f;
    public float maxScale = 1;
    private Camera _camera;
    // Use this for initialization
    private void Start()
    {
        string distCode = GetComponentInParent<CityInfo>().distCode;
        if (distCode.Length == 6)
        {
            minScale = 0.1f;
            maxScale = 0.8f;
        }
        _camera = Camera.main;
    }

    private void Update()
    {
        var d = Vector3.Distance(transform.position, _camera.transform.position);
        var s = Remap(d, minDistance, maxDistance, minScale, maxScale);
        s = Mathf.Max(s, minScale);
        s = Mathf.Min(s, maxScale);
        transform.localScale = Vector3.one * s;
    }

    private float Remap(float value, float inMin, float inMax, float outMin, float outMax)
    {
        return (value - inMin) / (inMax - inMin) * (outMax - outMin) + outMin;
    }
}