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67 lines
2.0 KiB
67 lines
2.0 KiB
using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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public class CameraOrbit : MonoBehaviour
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{
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public float distance; // 摄像头与指定点的距离
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public float xSpeed = 120.0f; // 水平旋转速度
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public float ySpeed = 120.0f; // 垂直旋转速度
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public bool canScroll = true;
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private float x = 0.0f;
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private float y = 0.0f;
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private float z = 1.0f;
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void Start()
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{
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Vector3 angles = transform.eulerAngles;
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x = angles.y;
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y = angles.x;
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distance = Vector3.Distance(transform.position, new Vector3(0, z, 0));
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}
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void LateUpdate()
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{
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if (Input.GetMouseButton(1))
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{
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x += Input.GetAxis("Mouse X") * xSpeed * distance * 0.02f;
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y -= Input.GetAxis("Mouse Y") * ySpeed * 0.02f;
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Quaternion rotation = Quaternion.Euler(y, x, 0);
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Vector3 position = rotation * new Vector3(0.0f, 0.0f, -distance) + new Vector3(0, z, 0);
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transform.rotation = rotation;
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transform.position = position;
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}
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else if (Input.GetAxis("Mouse ScrollWheel") != 0 && canScroll)
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{
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if (Input.GetAxis("Mouse ScrollWheel") < 0)
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{
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if (Camera.main.fieldOfView <= 100)
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Camera.main.fieldOfView += 2;
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if (Camera.main.orthographicSize <= 20)
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Camera.main.orthographicSize += 0.5F;
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}
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if (Input.GetAxis("Mouse ScrollWheel") > 0)
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{
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if (Camera.main.fieldOfView > 2)
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Camera.main.fieldOfView -= 2;
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if (Camera.main.orthographicSize >= 1)
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Camera.main.orthographicSize -= 0.5F;
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}
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}
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else if (Input.GetMouseButton(0))
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{
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var d = Input.GetAxis("Mouse Y") * ySpeed * 0.0005f;
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z -= d;
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Vector3 position = transform.position;
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position.y -= d;
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transform.position = position;
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}
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}
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}
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