c# - 为什么我的 Sprite 没有移动到第一个路点之外？

Question

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

public class ZombieControl : MonoBehaviour {

[SerializeField]
Transform[] waypoints;

[SerializeField]
float moveSpeed = 2f;

int wayPointIndex =0;

void Start()
{
    transform.position = waypoints[wayPointIndex].transform.position;
}

void Update() {
    Move ();
}

void Move()
{
    transform.position = Vector2.MoveTowards (transform.position, waypoints [wayPointIndex].transform.position, moveSpeed * Time.deltaTime);

    if (transform.position == waypoints [wayPointIndex].transform.position) {
        wayPointIndex += 1;
    }

    if (wayPointIndex == waypoints.Length)
        wayPointIndex = 0;
}
}

Answer 1

我猜这是因为你的 transform.position 由于 float 的准确性而永远不会完全等于你的航点位置。将等式与 float 一起使用时，您应该使用公差。

if (Vector2.Distance(transform.position, waypoints[wayPointIndex].transform.position) < .05f) // or some other small distance
{
    wayPointIndex += 1;
}