Unity3D位置在gameObject改变时更新答案

【问题标题】：Unity3D position Update when gameObject is changedUnity3D位置在gameObject改变时更新
【发布时间】：2021-02-07 15:38:12
【问题描述】：

我正在尝试制作一个车辆更换游戏，其中有 3 个游戏对象：汽车、坦克和悬停，如果我按下按钮从汽车更改为坦克/悬停，我希望它们处于汽车所在的位置.

z 轴向前

我在下面尝试了这段代码，但是当我向后退时，这将不起作用

UnityEngine;

public class Carswitcer : MonoBehaviour
{
public Transform car;
public Transform hover;
public Transform tank;

void Start()
{
    car.gameObject.SetActive(true);
    tank.gameObject.SetActive(false);
    hover.gameObject.SetActive(false);
}


public void Car()
    {
    
        if (car.position.z < hover.position.z)
            {
                car.position = hover.position;
            }
        if (car.position.z < tank.position.z)
            {
                car.position = tank.position;
            }

        car.gameObject.SetActive(true);
        tank.gameObject.SetActive(false);
        hover.gameObject.SetActive(false);
    }


public void Tank()
    {

        if (tank.position.z < hover.position.z)
            {
                tank.position = hover.position;
            }
        if (tank.position.z < car.position.z)
            {
                tank.position = car.position;
            }
        car.gameObject.SetActive(false);
        tank.gameObject.SetActive(true);
        hover.gameObject.SetActive(false);
    }



public void Hover()
    {

        if (hover.position.z < car.position.z)
            {
                hover.position = car.position;
            }
        if (hover.position.z < tank.position.z)
            {
                hover.position = tank.position;
            }

        car.gameObject.SetActive(false);
        tank.gameObject.SetActive(false);
        hover.gameObject.SetActive(true);

    }

【问题讨论】：

标签： c# unity3d position transform

【解决方案1】：

为什么要比较z？只需始终复制当前活动车辆的位置：

public class Carswitcer : MonoBehaviour
{
    public Transform car;
    public Transform hover;
    public Transform tank;

    // Store the current vehicle
    private Transform currentVehicle;

    void Start()
    {
        tank.gameObject.SetActive(false);
        hover.gameObject.SetActive(false);

        SetActiveVehicle(car);           
    }

    private void SetActiveVehicle(Transform newActiveVehicle)
    {
        // Is there a current vehicle?
        if(currentVehicle)
        {
            // If so copy its position and set it inactive
            newActiveVehicle.position = currentVehicle.position;
            currentVehicle.gameObject.SetActive(false);
        }

        // Store the new active reference and set it active
        currentVehicle = newActiveVehicle;
        currentVehicle.gameObject.SetActive(true);
    }

    public void Car()
    {
        SetActiveVehicle(car);
    }


    public void Tank()
    {
        SetActiveVehicle(tank);
    }

    public void Hover()
    {        
        SetActiveVehicle(hover);
    }

【讨论】：