更改Gizmos.DrawWireCube多维数据集限制，基于childs transform.position

Question

如何更改Gizmos.DrawWireCube的宽度，基于子变换（Gizmos.DrawWireSphere）transform.position或者变换的左/右极限？

到目前为止我的代码：

position.cs

using UnityEngine;
using System.Collections;

public class Position : MonoBehaviour {
    void OnDrawGizmos () {
        Gizmos.DrawWireSphere(transform.position, 0.75f);
    }


}

FormationController.cs

using UnityEngine;
using System.Collections;

public class FormationController : MonoBehaviour {
    public GameObject enemyPrefab;
    public float width = 10;
    public float height = 5;
    public float speed = 5;
    public float padding = 1.5f;
    public float SpawnDelaySeconds = 1;
    private int direction = 1;
    private float boundaryLeftEdge,boundaryRightEdge;
    private PlayerController playerController;
    // Use this for initialization

    void Start () {
        float distance = transform.position.z - Camera.main.transform.position.z;
        Vector3 leftmost = Camera.main.ViewportToWorldPoint(new Vector3(0, 0, distance));
        Vector3 rightmost = Camera.main.ViewportToWorldPoint(new Vector3(1, 0, distance));
        boundaryLeftEdge = leftmost.x + padding;
        boundaryRightEdge = rightmost.x - padding;
        SpawnUntilFull();
    }



    void OnDrawGizmos () {
        Gizmos.DrawWireCube(transform.position, new Vector3 (width, height));
    }

    // Update is called once per frame
    void Update () {
        float formationRightEdge = transform.position.x + 0.5f * width;
        float formationLeftEdge = transform.position.x - 0.5f * width;
        if (formationRightEdge > boundaryRightEdge) {
            direction = -1;
        }
        if (formationLeftEdge < boundaryLeftEdge) {
            direction = 1;
        }
        transform.position += new Vector3(direction * speed * Time.deltaTime, 0, 0);
        if (AllEnemiesAreDead()) {
            SpawnUntilFull();
        }
    }

    void SpawnUntilFull () {
        Transform freePos = NextFreePosition();
        GameObject enemy = Instantiate(enemyPrefab, freePos.position, Quaternion.identity) as GameObject;
        enemy.transform.parent = freePos;
        if (FreePositionExists()) {
            Invoke ("SpawnUntilFull", SpawnDelaySeconds);
        }

    }

    bool FreePositionExists () {
        foreach( Transform position in transform) {
            if (position.childCount <= 0) {
                return true;
            }
        }
        return false;
    }

    Transform NextFreePosition() {
        foreach (Transform position in transform) {
            if (position.childCount <= 0) {
                return position;
            }
        }
        return null;
    }

    bool AllEnemiesAreDead () {
        foreach(Transform position in transform) {
            if (position.childCount > 0) {
            return false;
            }           
        }
        return true;
    }
}

示例：

我正在做一个像“太空入侵者”这样的游戏，但是我无法弄清楚当最左边的入侵者死亡时，入侵者阵型会变成更小的阵型...所以新的最左边的入侵者“接触”了左边界。

我的场景：

忽略最顶部的小发明（圆圈）

Answer 1

试试这个：

using UnityEngine;
using System.Collections;

public class FormationController : MonoBehaviour {
    public GameObject enemyPrefab;
    public float widthToLeft = 5;
    public float widthToRight = 5;
    public float height = 5;
    public float speed = 5;
    public float padding = 1.5f;
    public float SpawnDelaySeconds = 1;
    private int direction = 1;
    private float boundaryLeftEdge,boundaryRightEdge;
    private PlayerController playerController;
    // Use this for initialization

    void Start () {
        float distance = transform.position.z - Camera.main.transform.position.z;
        Vector3 leftmost = Camera.main.ViewportToWorldPoint(new Vector3(0, 0, distance));
        Vector3 rightmost = Camera.main.ViewportToWorldPoint(new Vector3(1, 0, distance));
        boundaryLeftEdge = leftmost.x + padding;
        boundaryRightEdge = rightmost.x - padding;
        SpawnUntilFull();
    }



    void OnDrawGizmos () {
        Gizmos.DrawWireCube(transform.position, new Vector3 (widthToLeft+widthToRight, height));
    }

    // Update is called once per frame
    void Update () {
        float formationRightEdge = transform.position.x + 0.5f * widthToRight;
        float formationLeftEdge = transform.position.x - 0.5f * widthToLeft;
        if (formationRightEdge > boundaryRightEdge) {
            direction = -1;
        }
        if (formationLeftEdge < boundaryLeftEdge) {
            direction = 1;
        }
        transform.position += new Vector3(direction * speed * Time.deltaTime, 0, 0);
        if (AllEnemiesAreDead()) {
            SpawnUntilFull();
        }
    }

    void SpawnUntilFull () {
        Transform freePos = NextFreePosition();
        GameObject enemy = Instantiate(enemyPrefab, freePos.position, Quaternion.identity) as GameObject;
        enemy.transform.parent = freePos;
        if (FreePositionExists()) {
            Invoke ("SpawnUntilFull", SpawnDelaySeconds);
        }

    }

    bool FreePositionExists () {
        foreach( Transform position in transform) {
            if (position.childCount <= 0) {
                return true;
            }
        }
        return false;
    }

    Transform NextFreePosition() {
        foreach (Transform position in transform) {
            if (position.childCount <= 0) {
                return position;
            }
        }
        return null;
    }

    bool AllEnemiesAreDead () {
        foreach(Transform position in transform) {
            if (position.childCount > 0) {
            return false;
            }           
        }
        return true;
    }
}

我刚刚将width更改为widthToLeft和widthToRight

当入侵者死亡时：

public void OnInvaderDeath() {
    float mostLeft = 10000;
    float mostRight = -10000;
    foreach( Transform invaderTransform in invaderList ) {
        if( invaderTransform.position.x < mostLeft )
            mostLeft = invaderTransform.position.x;
        if( invaderTransform.position.x > mostRight )
            mostRight = invaderTransform.position.x;
    }
    widthToLeft = mostLeft + 0.75f;
    widthToRight = mostRight + 0.75f;
}