C# 在特定位置实例化对象？

我想先说我。。。这是很新的。希望这不是一个愚蠢的问题。我刚刚完成了一个脚本，它允许我砍倒一棵树，并在树消失后生成3块木头。我遇到的问题是，一旦原木产卵，它们就会站起来产卵，并在树的同一位置相互堆叠

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.AI;
public class TreeAi : MonoBehaviour
{
GameObject thisTree;
public int treeHealth = 35;
private bool isFallen = false;
public GameObject treeLog;
public GameObject treeLogOne;
public GameObject treeLogTwo;
public AudioClip treeFall;
private void Start()
{
thisTree = transform.gameObject;
}
void DeductPoints(int damageAmount)
{
treeHealth -= damageAmount;
}
void Update()
{
if (treeHealth <= 0 && isFallen == false)
{
Rigidbody rb = thisTree.AddComponent<Rigidbody>();
rb.isKinematic = false;
rb.useGravity = true;
rb.AddForce(Vector3.forward, ForceMode.Impulse);
StartCoroutine(destroyTree());
isFallen = true;
AudioSource.PlayClipAtPoint(treeFall, this.gameObject.transform.position);
}
}
private IEnumerator destroyTree()
{
yield return new WaitForSeconds(2.2f);
Destroy(thisTree);
Instantiate(treeLog, transform.position, transform.rotation);
Instantiate(treeLogOne, transform.position, transform.rotation);
Instantiate(treeLogTwo, transform.position, transform.rotation);
}
}

有没有办法让它们稍微散开产卵，然后躺在树倒下的地方

这是我的树脚本

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.AI;
public class TreeAi : MonoBehaviour
{
GameObject thisTree;
public int treeHealth = 35;
private bool isFallen = false;
public GameObject treeLog;
public GameObject treeLogOne;
public GameObject treeLogTwo;
public AudioClip treeFall;
private void Start()
{
thisTree = transform.gameObject;
}
void DeductPoints(int damageAmount)
{
treeHealth -= damageAmount;
}
void Update()
{
if (treeHealth <= 0 && isFallen == false)
{
Rigidbody rb = thisTree.AddComponent<Rigidbody>();
rb.isKinematic = false;
rb.useGravity = true;
rb.AddForce(Vector3.forward, ForceMode.Impulse);
StartCoroutine(destroyTree());
isFallen = true;
AudioSource.PlayClipAtPoint(treeFall, this.gameObject.transform.position);
}
}
private IEnumerator destroyTree()
{
yield return new WaitForSeconds(2.2f);
Destroy(thisTree);
Instantiate(treeLog, transform.position, transform.rotation);
Instantiate(treeLogOne, transform.position, transform.rotation);
Instantiate(treeLogTwo, transform.position, transform.rotation);
}
}

使用系统集合；
使用System.Collections.Generic；
使用UnityEngine；
使用UnityEngine.AI；
公共类树：单一行为
{
游戏对象树；
公共int treeHealth=35；
private bool isfall=false；
公共游戏对象树；
公共游戏对象树；
公共游戏对象树2；
公共音频剪辑treeFall；
私有void Start（）
{
ThistTree=transform.gameObject；
}
空扣点数（内部损坏金额）
{
树木健康-=损害金额；
}
无效更新（）
{
if（treeHealth进入
Instantiate（）
的第二个参数是您希望放置对象的位置。在这种情况下，您使用的位置与树相同

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.AI;
public class TreeAi : MonoBehaviour
{
GameObject thisTree;
public int treeHealth = 35;
private bool isFallen = false;
public GameObject treeLog;
public GameObject treeLogOne;
public GameObject treeLogTwo;
public AudioClip treeFall;
private void Start()
{
thisTree = transform.gameObject;
}
void DeductPoints(int damageAmount)
{
treeHealth -= damageAmount;
}
void Update()
{
if (treeHealth <= 0 && isFallen == false)
{
Rigidbody rb = thisTree.AddComponent<Rigidbody>();
rb.isKinematic = false;
rb.useGravity = true;
rb.AddForce(Vector3.forward, ForceMode.Impulse);
StartCoroutine(destroyTree());
isFallen = true;
AudioSource.PlayClipAtPoint(treeFall, this.gameObject.transform.position);
}
}
private IEnumerator destroyTree()
{
yield return new WaitForSeconds(2.2f);
Destroy(thisTree);
Instantiate(treeLog, transform.position, transform.rotation);
Instantiate(treeLogOne, transform.position, transform.rotation);
Instantiate(treeLogTwo, transform.position, transform.rotation);
}
}

您需要稍微修改位置向量。Unity有一个
Random
方法，在这种情况下非常有用

您可以像这样更新代码以使用此偏移量

// How far the random offset can stretch
var randomSpawnRadius = 2.0f;
// Take the current position and add a random offset times the radius
var treeLogOffset = transform.position += Random.insideUnitSphere * randomSpawnRadius;
Instantiate(treeLog, treeLogOffset , transform.rotation);
// Get another random position inside the radius
treeLogOffset = transform.position += Random.insideUnitSphere * randomSpawnRadius;
Instantiate(treeLogOne, treeLogOffset , transform.rotation);
treeLogOffset = transform.position += Random.insideUnitSphere * randomSpawnRadius;
Instantiate(treeLogTwo, treeLogOffset , transform.rotation);
}
//随机偏移可以延伸多远
var半径=2.0f；
//取当前位置并添加一个随机偏移乘以半径
var treeLogOffset=transform.position+=Random.insideuUnitSphere*randomSpawnRadius；
实例化（treeLog、treeLogOffset、transform.rotation）；
//在半径内获得另一个随机位置
treeLogOffset=transform.position+=Random.insideUnitSphere*Random半径；
实例化（treeLogOne、TreeLoGoOffset、transform.rotation）；
treeLogOffset=transform.position+=Random.insideUnitSphere*Random半径；
实例化（treeLogTwo、treeLogOffset、transform.rotation）；
}
另一种方法是将其作为一个函数，因为它是相当重复的

private void InstantiateAtRandomOffset(GameObject objectToInstantiate, Transform transform, float randomSpawnRadius)
{
  var itemOffset= transform.position += Random.insideUnitSphere * randomSpawnRadius;
  Instantiate(objectToInstantiate, itemOffset, transform.rotation);
}
私有void实例化随机偏移（GameObject ObjectToInstance、Transform Transform、float randomSpawnRadius）
{
var itemOffset=transform.position+=Random.InsideuUnitSphere*randomRadius；
实例化（ObjectToInstate、itemOffset、transform.rotation）；
}
然后，您可以将代码中的调用替换为

InstantiateAtRandomOffset(treeLog, transform, 2.0f);
InstantiateAtRandomOffset(treeLogOne, transform, 2.0f);
InstantiateAtRandomOffset(treeLogTwo, transform, 2.0f);
实例化随机偏移（树状图、变换、2.0f）；
实例化随机偏移（treeLogOne，变换，2.0f）；
实例化随机偏移（树高2，变换，2.0f）；
当您调用“实例化（treeLogTwo，transform.position，transform.rotation）；”transform.position是生成工件的位置，将其更改为所需的位置我知道了！现在是相对于树的位置吗？或者如果我更改了位置，它是否基于地图上的其他位置？取决于您是针对该位置还是localPosition