Question

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

public class MoveObjects : MonoBehaviour
{
    public float speed = 3f;

    private GameObject[] objectstoMove;
    private List<GameObject> objectsMoving = new List<GameObject>();
    private float distanceTravelled = 0;
    private Vector3 lastPosition;

    // Use this for initialization
    public void Init()
    {
        objectstoMove = GameObject.FindGameObjectsWithTag("Test");
        objectsMoving = new List<GameObject>(objectstoMove);
        lastPosition = objectstoMove[objectstoMove.Length].transform.position;
    }

    // Update is called once per frame
    void Update()
    {
        if (objectstoMove != null)
        {
            float step = speed * Time.deltaTime;
            for (int i = 0; i < objectstoMove.Length; i++)
            {
                if(distanceTravelled >= 50.0f)
                {
                    objectsMoving.Remove(objectsMoving[objectsMoving.Count]);
                }

                objectsMoving[i].transform.Translate((objectsMoving[i].transform.up + objectsMoving[i].transform.forward) * step);

                distanceTravelled += Vector3.Distance(objectsMoving[objectsMoving.Count].transform.position, lastPosition);
                lastPosition = objectsMoving[objectsMoving.Count].transform.position;
            }
        }
    }
}

在这一部分中，我要获取列表中的最后一个对象并将其移动到列表的开头：

if(distanceTravelled >= 50.0f)
                    {
                        objectsMoving.Remove(objectsMoving[objectsMoving.Count]);
                    }

通常的想法是将最后一个项目对象从列表移动到列表的开头，并一直保持移动对象，但是每次列表中的最后一个对象距离为DistanceTravelled> = 50.0f时，都将其移动到列表的开始。如果我没记错的话，与循环相同。

Answer 1

执行以下操作：

if(distanceTravelled >= 50.0f)
{
    var moveToFirst = objectsMoving.Last();
    objectsMoving.RemoveAt(objectsMoving.Count-1);
    objectsMoving.Insert(0, moveToFirst);
}

如何将项目从列表末尾移到开始？

1 个答案: