【Unity3D】使用鼠標鍵盤控制Camera視角（即時戰略類游戲視角）：縮近，拉遠，旋轉

今天寫一個demo，要用到鼠標鍵盤控制三維視角，因此寫了個腳本用於控制。

該腳本可以用於即時戰略類游戲的視角，提供了縮進，拉伸，旋轉。同時按住鼠標右鍵不放，移動鼠標可以實現第一人稱視角的效果。

 

using UnityEngine;
using System.Collections;

public class CameraController : MonoBehaviour {


    public float near = 20.0f;
    public float far = 100.0f;

    public float sensitivityX = 10f;
    public float sensitivityY = 10f;
    public float sensitivetyZ = 2f;
    public float sensitivetyMove = 2f;
    public float sensitivetyMouseWheel = 2f;


    void Update () {
        // 滾輪實現鏡頭縮進和拉遠
        if (Input.GetAxis("Mouse ScrollWheel") != 0)
        {
            this.camera.fieldOfView =this.camera.fieldOfView - Input.GetAxis("Mouse ScrollWheel")*sensitivetyMouseWheel;
            this.camera.fieldOfView = Mathf.Clamp(this.camera.fieldOfView, near, far);
        }
        //鼠標右鍵實現視角轉動，類似第一人稱視角
        if (Input.GetMouseButton(1))
        { 
            float rotationX = Input.GetAxis("Mouse X") * sensitivityX;
            float rotationY = Input.GetAxis("Mouse Y") * sensitivityY;
            transform.Rotate(-rotationY, rotationX, 0);            
        }

        //鍵盤按鈕←和→實現視角水平旋轉
        if (Input.GetAxis("Horizontal")!=0)
        {
            float rotationZ=Input.GetAxis("Horizontal") * sensitivetyZ;
            transform.Rotate(0, 0, rotationZ); 
        }
    }
}

 

直接把腳本拖到攝像機上就可以使用了~