Unity 射线检测案例

淡淡的烟草味﹌ 2023-07-21 11:14 34阅读 0赞

### 文章目录 ###

*  1. 射线检测案例2
 *   *  1.1. 前台
     *  1.2. 代码
     *  1.3. 结果
 *  2. 射线检测案例3

# 1. 射线检测案例2 #

## 1.1. 前台 ##

将`myLayer`设为`Default`，`capsuleObj`与Capsule绑定。  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0NPQ081Ng_size_16_color_FFFFFF_t_70]

## 1.2. 代码 ##

using System.Collections;
    using System.Collections.Generic;
    using UnityEngine;
    
    public class NewBehaviourScript : MonoBehaviour
    { 
        Ray myRay;
        RaycastHit myHit;
        public LayerMask myLayer;
        public GameObject capsuleObj;
    
        // Start is called before the first frame update
        void Start()
        { 
            Debug.Log(capsuleObj.gameObject.layer);
        }
    
        // Update is called once per frame
        void Update()
        { 
            myRay = Camera.main.ScreenPointToRay(Input.mousePosition);
    
            if (Physics.Raycast(myRay, out myHit, 100, myLayer))
            { 
                Debug.Log(myHit.transform.name);
                Debug.Log("检测到游戏对象");
                Debug.DrawRay(myRay.origin, myRay.direction * 20, Color.red);
            }
            else
            { 
                Debug.Log("Nothing");
                Debug.DrawRay(myRay.origin, myRay.direction * 20, Color.yellow);
            }
        }
    }

## 1.3. 结果 ##

当鼠标在物体前时，提示`检测到游戏对象`  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0NPQ081Ng_size_16_color_FFFFFF_t_70 1]

# 2. 射线检测案例3 #

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0NPQ081Ng_size_16_color_FFFFFF_t_70]: /images/20230528/297a75d137da455e9d3a137c74089cd8.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0NPQ081Ng_size_16_color_FFFFFF_t_70 1]: /images/20230528/62952b20d4484e239426878fab699988.png