鼠标滚轮实现缩放界面

using UnityEngine;public class FllowPlayer : MonoBehaviour{ private Transform player; private Vector3 offsetPosition; public float scrollSpeed = 10; public float rotateSpeed = 5; private float distance; private bool isRotating = false; void Awake() { player = GameObject.FindGameObjectWithTag(Tags.Player).transform; } void Start() { offsetPosition = transform.position - player.position; transform.LookAt(player.position); ; } void Update() { transform.position = player.position + offsetPosition; //鼠标放大和缩放界面 ScrollView(); //旋转界面 RotateView(); } //放大和缩放界面 private void ScrollView() { distance = offsetPosition.magnitude; distance -= Input.GetAxis("Mouse ScrollWheel") * scrollSpeed; distance = Mathf.Clamp(distance, 3, 15); offsetPosition = offsetPosition.normalized * distance; } //按鼠标右键旋转界面 private void RotateView() { if (Input.GetMouseButtonDown(1)) { isRotating = true; } if (Input.GetMouseButtonUp(1)) { isRotating = false; } if (isRotating) { //左右旋转 transform.RotateAround(player.position, player.up, Input.GetAxis("Mouse X") * rotateSpeed); Vector3 origionPosition = transform.position; Quaternion origionRotation = transform.rotation; //上下旋转 transform.RotateAround(player.position, transform.right, -Input.GetAxis("Mouse Y") * rotateSpeed); float x = transform.eulerAngles.x; if (x < 30 || x > 80) { transform.position = origionPosition; transform.rotation = origionRotation; } offsetPosition = transform.position - player.position; } }}

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