如题，U3d小白，搜索到的很多相似问题都无法解决，困扰了三天只能上来求助了……
Unity报错：NullReferenceException: Object reference not set to an instance of an object
Enemy_2.Start () (at Assets/_Scripts/Enemy_2.cs:21)
问题出现在21行
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class Enemy_2 :Enemy
{
[Header("Set in Inspector:Enemy_2 ")]
public float sinEccentricity = 0.6f;
public float lifeTime = 10;
[Header("Set Dynamically:Enemy_2 ")]
public Vector3 p0;
public Vector3 p1;
public float birthTime;
// Start is called before the first frame update
void Start()
{
p0 = Vector3.zero;
p0.x = -bndCheck.camWidth - bndCheck.radius;
p0.y = Random.Range(-bndCheck.camHeight, bndCheck.camHeight);
p1 = Vector3.zero;
p1.x = bndCheck.camWidth + bndCheck.radius;
p1.y = Random.Range(-bndCheck.camHeight, bndCheck.camHeight);
if (Random.value > 0.5f)
{
p0.x *= -1;
p1.x *= -1;
}
birthTime = Time.time;
}
public override void Move()
{
float u = (Time.time - birthTime) / lifeTime;
if (u >1)
{
Destroy(this.gameObject);
return;
}
u = u + sinEccentricity * (Mathf.Sin(u * Mathf.PI * 2));
pos = (1 - u) * p0 + u * p1;
}
}
