Unity ViewtoWorldPoint 不工作，我做错了什么？

Question

我正在尝试按照本教程制作一个 Space Invaders 副本，但我可能稍后会对其进行调整，使其更具几何战争风格。

无论如何，我同时自学 C# 和 Unity，所以这相当困难，我了解大部分代码，但有些我不明白，这就是我相信挂断的地方...

该代码应该在屏幕上左右移动我的编队，但经过数小时尝试编辑我的代码并对其进行调整后，我唯一注意到的是当我更改 BoundaryLeftEdge 和BoundaryRightEdge Vector 3 有不同的行为......但它仍然向左移动并像它应该的那样向后和第四个移动，除了它像从屏幕偏移或向右移动并卡住依此类推，第四……我希望它从 A 点向后移动到第四点，但我似乎无法做到这一点：（对不起，我是一个需要帮助的菜鸟，自学比我想象的要困难得多猜测

using UnityEngine;
using System.Collections;

public class FormationController : MonoBehaviour
{   //Spawning Variables
    public GameObject EnemyPrefab;
    public float W = 10, H = 5;
    //Movement Variables
    public float Speed = 5;
    private int Direction;
    private float BoundaryRightEdge, BoundaryLeftEdge;
    public float Padding = 0.25f;


void Start() //Setting Boundary
{
    Camera camera = GameObject.Find("Player").GetComponentInChildren<Camera>();
    float distance = camera.transform.position.z - camera.transform.position.z;
    BoundaryLeftEdge = camera.ViewportToWorldPoint(new Vector3(0, 0, distance)).x + Padding;
    BoundaryRightEdge = camera.ViewportToWorldPoint(new Vector3(1, 1, distance)).x - Padding;
}

void OnDrawGizmos()
{
    float xmin, xmax, ymin, ymax;
    xmin = transform.position.x - 0.5f * W;
    xmax = transform.position.x + 0.5f * W;
    ymin = transform.position.y - 0.5f * H;
    ymax = transform.position.y + 0.5f * H;
    Gizmos.DrawLine(new Vector3(xmin, ymin, 0), new Vector3(xmin, ymax));
    Gizmos.DrawLine(new Vector3(xmin, ymax, 0), new Vector3(xmax, ymax));
    Gizmos.DrawLine(new Vector3(xmax, ymax, 0), new Vector3(xmax, ymin));
    Gizmos.DrawLine(new Vector3(xmax, ymin, 0), new Vector3(xmin, ymin));

}

void Update()
{
    float formationRightEdge = transform.position.x + 0.5f * W;
    float formationLeftEdge = transform.position.x - 0.5f * W;
    if (formationRightEdge > BoundaryRightEdge)
    {
        Direction = -1;
    }
    if (formationLeftEdge < BoundaryLeftEdge)
    {
        Direction = 1;
    }
    transform.position += new Vector3(Direction * Speed * Time.deltaTime, 0, 0);

    //Spawn Enemies on Keypress
    if (Input.GetKeyDown(KeyCode.S))
    {
        foreach (Transform child in transform)
        {
            GameObject enemy = Instantiate(EnemyPrefab, child.transform.position, Quaternion.identity) as GameObject;
            enemy.transform.parent = child;
        }
    }
}

} `

Answer 1

根据您的代码，我只能假设formationRightEdge 应该小于BoundaryLeftEdge 并且formationLeftEdge 应该大于BoundaryLeftEdge，除非您在世界点进行反向转换。

试试这个 -

if (formationRightEdge < BoundaryRightEdge)
{
    Direction = -1;
}
if (formationLeftEdge > BoundaryLeftEdge)
{
    Direction = 1;
}

也许您的Direction = 1 和Direction = -1 应该颠倒过来。当然，检查您是否在检查器中为公共变量设置了不同的值。您可以在此处重置为默认值（在此脚本中定义）。