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91 lines
3.2 KiB
91 lines
3.2 KiB
11 months ago
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using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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public class PanoramaCameraOrbit : MonoBehaviour {
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//float yRotSpeed = 30f;
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public float mouseSensivity = 120;
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private Vector3 mousePrevPos;
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public float camMoveSpeed = 700f;
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public float camXRot = 0;
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public float camYRot = 0;
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public float camZRot = 0;
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public Vector3 camFreeModePos;
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float FildOfViewSpeed = 50; //视角拉近速度
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void Start()
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{
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}
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void Update()
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{
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Vector3 camPos = GetComponent<Camera>().transform.position;
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Vector3 camMoveDir = new Vector3();
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Vector3 camDesiredRot = Vector3.zero;
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if (mouseCursorInFrame())
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{
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if (Input.GetMouseButton(1))
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{
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camYRot -= Input.GetAxis("Mouse X") * (Time.deltaTime * mouseSensivity);
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camYRot = ClampAngle(camYRot, -360, 360);
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camXRot += Input.GetAxis("Mouse Y") * (Time.deltaTime * mouseSensivity);
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camXRot = ClampAngle(camXRot, -85, 85);
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}
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if (Input.GetAxis("Mouse ScrollWheel") > 0)
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{
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if (this.GetComponent<Camera>().fieldOfView > 50)
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{
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camMoveDir = GetComponent<Camera>().transform.forward;
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this.GetComponent<Camera>().fieldOfView -= Time.deltaTime * FildOfViewSpeed;//视角拉近
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}
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}
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if (Input.GetAxis("Mouse ScrollWheel") < 0)
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{
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if (this.GetComponent<Camera>().fieldOfView < 70)
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{
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camMoveDir = -GetComponent<Camera>().transform.forward;
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this.GetComponent<Camera>().fieldOfView += Time.deltaTime * FildOfViewSpeed;//视角拉远
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}
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}
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}
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camDesiredRot = new Vector3(camXRot, camYRot, camZRot);
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camMoveDir.Normalize();
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camMoveDir *= (camMoveSpeed * Time.deltaTime);
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camFreeModePos += camMoveDir;
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Vector3 finalPosition = Vector3.Lerp(camPos, camFreeModePos, Time.deltaTime + 0.1f);
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GetComponent<Camera>().transform.position = finalPosition;
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GetComponent<Camera>().transform.rotation = Quaternion.Slerp(GetComponent<Camera>().transform.rotation, Quaternion.Euler(camDesiredRot), Time.deltaTime + 0.05f);
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}
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private bool mouseCursorInFrame()
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{
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Vector3 cursorPos = Input.mousePosition;
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float xMinCoord = Screen.width * GetComponent<Camera>().rect.xMin;
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float yMinCoord = Screen.height * GetComponent<Camera>().rect.yMin;
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float xMaxCoord = Screen.width * GetComponent<Camera>().rect.xMax;
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float yMaxCoord = Screen.height * GetComponent<Camera>().rect.yMax;
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if (cursorPos.x > xMinCoord && cursorPos.x < xMaxCoord &&
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cursorPos.y > yMinCoord && cursorPos.y < yMaxCoord)
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return true;
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else
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return false;
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}
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private static float ClampAngle(float angle, float min, float max)
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{
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if (angle < -360)
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angle += 360;
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if (angle > 360)
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angle -= 360;
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return Mathf.Clamp(angle, min, max);
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}
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}
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