如何在unity中随机禁用盒子碰撞器

Question

我有两个简单的三维立方体对象a,b。所以我的任务是在每次游戏开始时随机禁用一个对象的盒子碰撞器。

我最初的想法是随机生成布尔值，如果它是假的，那么禁用盒子碰撞器。

Answer 1

您可以将您的多维数据集添加到数组中，并使用Random.Range(0, yourArray.Length)获取应该停用的多维数据集的索引。在您的情况下，这将是一些开销，但这个解决方案将适用于不同的立方体计数在未来。在代码中，它看起来像:

// You can serialize this array and add cubes from Inspector in Editor
// or add script with this code to the parent gameobject 
// and use GetComponentsInChildren<BoxCollider>() to get all colliders
var cubes = new BoxCollider[2] {firstCube, secondCube};
var cubeToDeactivationIndex = Random.Range(0, cubes.Length);
cubes[cubeToDeactivationIndex].enabled = false;

关于你的第二个问题。如果我理解正确的话，接下来是实现:

using System;
using UnityEngine;
using UnityEngine.Assertions;
using Random = UnityEngine.Random;
// Interface need to provide limited API
// without open references to gameobject and transform of the object
public interface ICollidable
{
event Action<ICollidable> OnCollided;
int HierarchyIndex { get; }
void DisableCollider();
}
// This component you should add to the object which will collide with player
public class CollidableObject : MonoBehaviour, ICollidable
{
[SerializeField] 
private Collider _objectCollider;
public event Action<ICollidable> OnCollided;
public int HierarchyIndex => transform.GetSiblingIndex();
private void Start()
{
Assert.IsNotNull(_objectCollider);
}
//Here you can use your own logic how to detect collision
//I written it as example
private void OnCollisionEnter(Collision collision)
{

if (collision.transform.CompareTag("Player")) {
OnCollided?.Invoke(this);
}
}
public void DisableCollider()
{
_objectCollider.enabled = false;
}
}
// This component should be on the parent gameobject for your ` 
// collidable objects. As alternative you can serialize array
// and add all collidable objects from the Inspector but in that 
// case signature of the array should be CollidableObject[] 
// because Unity can`t serialize interfaces 
public class RamdomizedActivitySwitcher : MonoBehaviour
{
private ICollidable[] _collidableObjects;
private void Awake()
{
_collidableObjects = GetComponentsInChildren<ICollidable>(true);
foreach (var collidable in _collidableObjects)
{
collidable.OnCollided += DisableObjectWhenMatch;
}
}
private void DisableObjectWhenMatch(ICollidable collidedObject)
{
var randomIndex = Random.Range(0, _collidableObjects.Length);
if (randomIndex == collidedObject.HierarchyIndex) {
collidedObject.DisableCollider();
}
}
}

}