如何根據用戶輸入在預制件中旋轉多個剛體

我目前正在嘗試根據不同Rigidbody的輸入在預制件中旋轉不同的s。當每個Rigidbody腳本都有一個帶有指定輸入的單獨腳本時，我就可以使用它，但是我需要將它們組合成一個“主控制”腳本，這樣我最終可以將玩家角色垂直分成兩半，以便 1 個玩家可以控制左半部分并且 1 名玩家可以在鏡像網路 API 中控制身體的右半部分四肢。

作業代碼僅附加到一個肢體上，在這種情況下，是左二頭肌。肢體之間唯一改變的是鍵盤輸入和乘數變數。

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

public class LeftBicep : MonoBehaviour
{
    public float amount = 6000f;
    protected Rigidbody rb;
    public float multiplier = 4f;

    void Start()
    {
        rb = GetComponent<Rigidbody>();
    }

    void FixedUpdate()
    {
        float h = Input.GetAxis("leftbicep") * amount * Time.deltaTime;

        GetComponent<Rigidbody>().AddTorque(Vector3.right * h * multiplier); 
    }
}

這是附加到我無法作業的全身預制件的“主控制”腳本。

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

public class Movement : MonoBehaviour
{
    public Rigidbody forearmL;
    public Rigidbody forearmR;
    public Rigidbody shoulderL;
    public Rigidbody shoulderR;
    public Rigidbody thighL;
    public Rigidbody thighR;
    public Rigidbody legL;
    public Rigidbody legR;

    public float amount = 6000f;
    public float multiplier = 4f;

    // Start is called before the first frame update
    void Start()
    {
        forearmL = (Rigidbody)GetComponent("LeftForearm2");
        forearmR = (Rigidbody)GetComponent("RightForearm2");
        shoulderL = (Rigidbody)GetComponent("LeftBicep2");
        shoulderR = (Rigidbody)GetComponent("RightBicep2");
        thighL = (Rigidbody)GetComponent("LeftThigh2");
        thighR = (Rigidbody)GetComponent("RightThigh2");
        legL = (Rigidbody)GetComponent("LeftLeg2");
        legR = (Rigidbody)GetComponent("RightLeg2");
        
    }
    
    void FixedUpdate()
    {
            float lBicep = Input.GetAxis("leftbicep") * amount * Time.deltaTime;
            shoulderL.AddTorque(Vector3.right * lBicep * multiplier);

            float lFArm = Input.GetAxis("leftforearm") * amount * Time.deltaTime;
            forearmL.AddTorque(Vector3.right * lFArm * multiplier);
            
            float lThigh = Input.GetAxis("leftthigh") * amount * Time.deltaTime;
            thighL.AddTorque(Vector3.right * lThigh * multiplier);
            
            float lLeg = Input.GetAxis("leftleg") * amount * Time.deltaTime;
            legL.AddTorque(Vector3.right * lLeg * multiplier);

            float rBicep = Input.GetAxis("rightbicep") * amount * Time.deltaTime;
            shoulderR.AddTorque(Vector3.right * rBicep * multiplier);
            
            float rFArm = Input.GetAxis("rightforearm") * amount * Time.deltaTime;
            forearmR.AddTorque(Vector3.right * rFArm * multiplier);
            
            float rThigh = Input.GetAxis("rightthigh") * amount * Time.deltaTime;
            thighR.AddTorque(Vector3.right * rThigh * multiplier);
            
            float rLeg = Input.GetAxis("rightleg") * amount * Time.deltaTime;
            legR.AddTorque(Vector3.right * rLeg * multiplier);

            
    }
}

使用場景中具有“主控制”腳本的玩家預制件運行游戲時遇到的例外是

NullReferenceException: Object reference not set to an instance of an object
Movement.FixedUpdate () (at Assets/Scripts/test/Movement.cs:38)

我該如何讓它發揮作用？

uj5u.com熱心網友回復：

我很確定你的問題是所有這些

forearmL = (Rigidbody)GetComponent("LeftForearm2");
forearmR = (Rigidbody)GetComponent("RightForearm2");
shoulderL = (Rigidbody)GetComponent("LeftBicep2");
shoulderR = (Rigidbody)GetComponent("RightBicep2");
thighL = (Rigidbody)GetComponent("LeftThigh2");
thighR = (Rigidbody)GetComponent("RightThigh2");
legL = (Rigidbody)GetComponent("LeftLeg2");
legR = (Rigidbody)GetComponent("RightLeg2");

將回傳，null因為您正在尋找的組件被稱為Rigidbody.. 不是LeftForearm2等，請參閱GetComponent(string type)

鍵入
該型別組件的檢索。

只需通過 Unity Inspector 在公開欄位中進行所有參考，然后Start完全洗掉您的方法！

或者，聽起來您傳入的GetComponent實際上是直接嵌套在主控制器下的子物件的名稱，因此您可以這樣做（但我不會那樣說）

// See https://docs.unity3d.com/ScriptReference/Transform.Find.html
forearmL = transform.Find("LeftForearm2").GetComponent<Rigidbody>();
forearmR = transform.Find("RightForearm2").GetComponent<Rigidbody>();
shoulderL = transform.Find("LeftBicep2").GetComponent<Rigidbody>();
shoulderR = transform.Find("RightBicep2").GetComponent<Rigidbody>();
thighL = transform.Find("LeftThigh2").GetComponent<Rigidbody>();
thighR = transform.Find("RightThigh2").GetComponent<Rigidbody>();
legL = transform.Find("LeftLeg2").GetComponent<Rigidbody>();
legR = transform.Find("RightLeg2").GetComponent<Rigidbody>();

標籤：C＃ 统一3d 刚体 预制件

上一篇：我想做一個統一的P2P網路（考慮使用鏡像）游戲，沒有專用服務器，類似于泰拉瑞亞和瓦爾海姆

下一篇：Google移動廣告(Admob)-在測驗和生產之間切換？