如果我按下某个键，我怎么才能在相机之间切换？

Question

好了，所以我有2个摄像头设置在我的层次在Unity：

我想知道，当在游戏中，我怎么能这两款相机之间切换，当某个键被按下？我知道我可能需要为此做一个脚本，只是不知道我该怎么做。

Answer 1

您可以添加多台摄像机

using UnityEngine; 

using System.Collections; 

public class CameraController : MonoBehaviour { 

// Use this for initialization 
public Camera[] cameras; 
private int currentCameraIndex; 

// Use this for initialization 
void Start() { 
    currentCameraIndex = 0; 

    //Turn all cameras off, except the first default one 
    for (int i=1; i<cameras.Length; i++) 
    { 
     cameras[i].gameObject.SetActive(false); 
    } 

    //If any cameras were added to the controller, enable the first one 
    if (cameras.Length>0) 
    { 
     cameras [0].gameObject.SetActive (true); 
     Debug.Log ("Camera with name: " + cameras [0].GetComponent<Camera>().name + ", is now enabled"); 
    } 
} 

// Update is called once per frame 
void Update() { 
    //If the c button is pressed, switch to the next camera 
    //Set the camera at the current index to inactive, and set the next one in the array to active 
    //When we reach the end of the camera array, move back to the beginning or the array. 


} 

public void Change() 
{ 
     currentCameraIndex ++; 
     Debug.Log ("C button has been pressed. Switching to the next camera"); 
     if (currentCameraIndex < cameras.Length) 
     { 
      cameras[currentCameraIndex-1].gameObject.SetActive(false); 
      cameras[currentCameraIndex].gameObject.SetActive(true); 
      Debug.Log ("Camera with name: " + cameras [currentCameraIndex].GetComponent<Camera>().name + ", is now enabled"); 
     } 
     else 
     { 
      cameras[currentCameraIndex-1].gameObject.SetActive(false); 
      currentCameraIndex = 0; 
      cameras[currentCameraIndex].gameObject.SetActive(true); 
      Debug.Log ("Camera with name: " + cameras [currentCameraIndex].GetComponent<Camera>().name + ", is now enabled"); 
     } 
    } 

}

Answer 2

非常基本的问题，你应该去一些C＃教程。

无论如何，这是可以做到的。把这个更新方法：

if (Input.GetKeyDown("space")) 
    { 
     //don't forget to set one as active either in the Start() method 
     //or deactivate 1 camera in the Editor before playing 
     if (Camera1.active == true) 
     { 
      Camera1.SetActive(false); 
      Camera2.SetActive(true); 
     } 

     else 
     { 
      Camera1.SetActive(true); 
      Camera2.SetActive(false); 
     } 
    }