我怎样才能让小队成员之间的距离相等？

Question

当它是方阵时我可以设置 space 很好。但我不确定如何用圆圈形成。在 FormationSquare 方法中，我使用 space 变量来生成正方形。现在我也需要对圆的形成做同样的想法。

也许在 RandomCircle 内部改变一些东西并使用 space 变量？

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

public class SquadFormation : MonoBehaviour
{
    enum Formation
    {
        Square, Circle
    }

    public Transform squadMemeber;
    public int columns = 4;
    public int space = 10;
    public int numObjects = 20;
    public float yOffset = 1;

    private Formation formation;

    // Use this for initialization
    void Start()
    {
        formation = Formation.Square;
        ChangeFormation();
    }

    // Update is called once per frame
    void Update()
    {
        if (Input.GetKeyDown(KeyCode.F))
        {
            GameObject[] objects = GameObject.FindGameObjectsWithTag("Squad Member");
            if (objects.Length > 0)
            {
                foreach (GameObject obj in objects)
                    Destroy(obj);
            }

            ChangeFormation();
        }
    }

    private void ChangeFormation()
    {
        switch (formation)
        {
            case Formation.Square:

                for (int i = 0; i < 23; i++)
                {
                    Transform go = Instantiate(squadMemeber);
                    Vector3 pos = FormationSquare(i);
                    go.position = new Vector3(transform.position.x + pos.x, 0, transform.position.y + pos.y);
                    go.Rotate(new Vector3(0, -90, 0));
                    go.tag = "Squad Member";
                }
                formation = Formation.Circle;
                break;

            case Formation.Circle:

                Vector3 center = transform.position;
                for (int i = 0; i < numObjects; i++)
                {
                    Vector3 pos = RandomCircle(center, 5.0f);
                    var rot = Quaternion.LookRotation(center - pos);
                    pos.y = Terrain.activeTerrain.SampleHeight(pos);
                    pos.y = pos.y + yOffset;
                    Transform insObj = Instantiate(squadMemeber, pos, rot);
                    insObj.rotation = rot;
                    insObj.tag = "Squad Member";
                }
                formation = Formation.Square;
                break;
        }
    }

    Vector2 FormationSquare(int index) // call this func for all your objects
    {
        float posX = (index % columns) * space;
        float posY = (index / columns) * space;
        return new Vector2(posX, posY);
    }

    Vector3 RandomCircle(Vector3 center, float radius)
    {
        float ang = Random.value * 360;
        Vector3 pos;
        pos.x = center.x + radius * Mathf.Sin(ang * Mathf.Deg2Rad);
        pos.z = center.z + radius * Mathf.Cos(ang * Mathf.Deg2Rad);
        pos.y = center.y;
        return pos;
    }
}

Answer 1

这里的问题是您的 RandomCircle() 方法是......好吧，随机的。你只是随意抓住圆圈的一个角度，而不考虑其他小队成员的位置，这意味着他们实际上永远不会均匀分布。

考虑预先计算将每个小队成员分开的角度（如果均匀分布），然后执行与 FormationSquare() 类似的方法，在该方法中迭代小队以分配他们。

这可能更接近您想要的（基于 RandomCircle() 已经按设计工作的假设）：

Vector3 FormationCircle(Vector3 center, float radius, int index, float angleIncrement)
{
    float ang = index * angleIncrement;
    Vector3 pos;
    pos.x = center.x + radius * Mathf.Sin(ang * Mathf.Deg2Rad);
    pos.z = center.z + radius * Mathf.Cos(ang * Mathf.Deg2Rad);
    pos.y = center.y;
    return pos;
}

要调用它，您需要：

Vector3 center = transform.position;
float radius = (float)space / 2;
float angleIncrement = 360 / (float)numObjects;

for (int i = 0; i < numObjects; i++)
{
    Vector3 pos = FormationCircle(center, radius, i, angleIncrement);
    // ...
}

希望对您有所帮助！如果您有任何问题，请告诉我。

我怎样才能让小队成员之间的距离相等？

How can i make equal spaces between the squad members in the circle formation?

c#

unity3d

unity5