Unity相机漫游脚本

分享一个Unity中控制相机漫游的脚本，应用于智慧城市、数字孪生等场景操作。

直接上代码

using UnityEngine;[RequireComponent(typeof(Camera))]
public class FreeFlyCamera : MonoBehaviour
{#region UI[Space][SerializeField][Tooltip("The script is currently active")]private bool _active = true;[Space][SerializeField][Tooltip("Camera rotation by mouse movement is active")]private bool _enableRotation = true;[SerializeField][Tooltip("Sensitivity of mouse rotation")]private float _mouseSense = 1.8f;[Space][SerializeField][Tooltip("Camera zooming in/out by 'Mouse Scroll Wheel' is active")]private bool _enableTranslation = true;[SerializeField][Tooltip("Velocity of camera zooming in/out")]private float _translationSpeed = 55f;[Space][SerializeField][Tooltip("Camera movement by 'W','A','S','D','Q','E' keys is active")]private bool _enableMovement = true;[SerializeField][Tooltip("Camera movement speed")]private float _movementSpeed = 10f;[SerializeField][Tooltip("Speed of the quick camera movement when holding the 'Left Shift' key")]private float _boostedSpeed = 50f;[SerializeField][Tooltip("Boost speed")]private KeyCode _boostSpeed = KeyCode.LeftShift;[SerializeField][Tooltip("Move up")]private KeyCode _moveUp = KeyCode.E;[SerializeField][Tooltip("Move down")]private KeyCode _moveDown = KeyCode.Q;[Space][SerializeField][Tooltip("Acceleration at camera movement is active")]private bool _enableSpeedAcceleration = true;[SerializeField][Tooltip("Rate which is applied during camera movement")]private float _speedAccelerationFactor = 1.5f;[Space][SerializeField][Tooltip("This keypress will move the camera to initialization position")]private KeyCode _initPositonButton = KeyCode.R;#endregion UIprivate CursorLockMode _wantedMode;private float _currentIncrease = 1;private float _currentIncreaseMem = 0;private Vector3 _initPosition;private Vector3 _initRotation;#if UNITY_EDITORprivate void OnValidate(){if (_boostedSpeed < _movementSpeed)_boostedSpeed = _movementSpeed;}
#endifprivate void Start(){_initPosition = transform.position;_initRotation = transform.eulerAngles;}private void OnEnable(){if (_active)_wantedMode = CursorLockMode.Locked;}// Apply requested cursor stateprivate void SetCursorState(){if (Input.GetKeyDown(KeyCode.Escape)){Cursor.lockState = _wantedMode = CursorLockMode.None;}/*if (Input.GetMouseButtonDown(0)){_wantedMode = CursorLockMode.Locked;}*/// Apply cursor state//Cursor.lockState = _wantedMode;// Hide cursor when lockingCursor.visible = true;//(CursorLockMode.Locked != _wantedMode);}private void CalculateCurrentIncrease(bool moving){_currentIncrease = Time.deltaTime;if (!_enableSpeedAcceleration || _enableSpeedAcceleration && !moving){_currentIncreaseMem = 0;return;}_currentIncreaseMem += Time.deltaTime * (_speedAccelerationFactor - 1);_currentIncrease = Time.deltaTime + Mathf.Pow(_currentIncreaseMem, 3) * Time.deltaTime;}private void Update(){if (!_active)return;SetCursorState();/*if (Cursor.visible)return;*/// Translationif (_enableTranslation){transform.Translate(Vector3.forward * Input.mouseScrollDelta.y * Time.deltaTime * _translationSpeed);}// Movementif (_enableMovement){Vector3 deltaPosition = Vector3.zero;float currentSpeed = _movementSpeed;if (Input.GetKey(_boostSpeed))currentSpeed = _boostedSpeed;if (Input.GetKey(KeyCode.W))deltaPosition += transform.forward;if (Input.GetKey(KeyCode.S))deltaPosition -= transform.forward;if (Input.GetKey(KeyCode.A))deltaPosition -= transform.right;if (Input.GetKey(KeyCode.D))deltaPosition += transform.right;if (Input.GetKey(_moveUp))deltaPosition += transform.up;if (Input.GetKey(_moveDown))deltaPosition -= transform.up;// Calc accelerationCalculateCurrentIncrease(deltaPosition != Vector3.zero);transform.position += deltaPosition * currentSpeed * _currentIncrease;}if (Input.GetMouseButtonDown(0)){_enableRotation = true;}if(Input.GetMouseButtonUp(0)){_enableRotation = false;}// Rotationif (_enableRotation){// Pitchtransform.rotation *= Quaternion.AngleAxis(-Input.GetAxis("Mouse Y") * _mouseSense,Vector3.right);// Pawtransform.rotation = Quaternion.Euler(transform.eulerAngles.x,transform.eulerAngles.y + Input.GetAxis("Mouse X") * _mouseSense,transform.eulerAngles.z);}// Return to init positionif (Input.GetKeyDown(_initPositonButton)){transform.position = _initPosition;transform.eulerAngles = _initRotation;}}
}

将脚本挂到相机上即可。

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