关于移动

小咪咪 2022-07-14 06:13 86阅读 0赞

using UnityEngine;
    using System.Collections;
    
    public class MoveCamera : MonoBehaviour 
    {
    	public float MoveSpeed = 200f;
    	private Transform mainCamTrans;
    	private float deltaTime = 0f;
    	private float minFov = 15f;
    	private float maxFov = 120f;
    	private float sensitivity = 10f;
    	private float fov = 0f;
    	private bool isMouseDown = false;
    	private Vector3 lastMousePosition;
    	private Ray ray;
    	private RaycastHit hit;
    	private Vector2 curDir;
    	private Vector2 vInputPos;
    	private Vector2 vPlayerPos = Vector2.zero;
    	void Start () 
    	{
    		mainCamTrans = Camera.main.transform;
    	}
    
    	void OnGUI()
    	{
    		GUI.Label (new Rect (10,10,200,30), "当前fov = " + fov);
    		GUI.Label (new Rect (10,30,200,30), "前：w  后：s ");
    		GUI.Label (new Rect (10,50,200,30), "左：a  右：d ");
    		GUI.Label (new Rect (10,80,200,30), "滚动滑轮调节fov");
    		if( GUI.Button(new Rect(10,110,80,30),"reset fov" ))
    		{
    			Camera.main.fieldOfView = 60f;
    		}
    	}
    	// Update is called once per frame
    	void Update () 
    	{
    		fov = Camera.main.fieldOfView;
    		fov += Input.GetAxis("Mouse ScrollWheel") * sensitivity;
    		fov = Mathf.Clamp(fov, minFov, maxFov);
    		Camera.main.fieldOfView = fov;
    	
    		if (Input.GetKey(KeyCode.W))
    		{
    			mainCamTrans.Translate(Vector3.up * Time.deltaTime * MoveSpeed);
    		}
    		
    		if (Input.GetKey(KeyCode.S))
    		{
    			mainCamTrans.Translate(Vector3.down * Time.deltaTime * MoveSpeed);
    		}
    		
    		if (Input.GetKey(KeyCode.A))
    		{
    			mainCamTrans.Translate(Vector3.left * Time.deltaTime * MoveSpeed);
    		}
    		
    		if (Input.GetKey(KeyCode.D))
    		{
    			mainCamTrans.Translate(Vector3.right * Time.deltaTime * MoveSpeed);
    		}
            if (Input.GetMouseButtonDown(0))
            {
                isMouseDown = true;
            }
            if (Input.GetMouseButtonUp(0))
            {
                isMouseDown = false;
                lastMousePosition = Vector3.zero;
            }  
    		if(isMouseDown)
    		{
    			if(lastMousePosition!=Vector3.zero)
    			{  
    				ClickScreen(Input.mousePosition);
    			}  
    			lastMousePosition = Input.mousePosition;
    		}
    		vPlayerPos.x = mainCamTrans.position.x;
    		vPlayerPos.y = mainCamTrans.position.y;
    		if( Vector2.Distance( vInputPos, vPlayerPos ) > 10f)
    		{
    			mainCamTrans.Translate(curDir.x * Time.deltaTime * MoveSpeed, -curDir.y * Time.deltaTime * MoveSpeed,0f);	
    		}
    	}
    
    	private void ClickScreen( Vector3 pos )
    	{
    		vInputPos = Vector2.zero;
    		curDir = Vector2.zero;
    		ray = Camera.main.ScreenPointToRay( pos );
    		bool bHit = Physics.Raycast( ray, out hit, Mathf.Infinity );
            
    		if (bHit && hit.collider.gameObject.CompareTag("MapCollider")) 
    		{
    			curDir.x = mainCamTrans.position.x;
    			curDir.y = mainCamTrans.position.y;
    			vInputPos.x = hit.point.x;
    			vInputPos.y = hit.point.y;
    			curDir = curDir - vInputPos;
    			curDir.Normalize();
    		}
    	}
    }