替换脚本PlayerMovement_04.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;public class PlayerMovement_05 : MonoBehaviour
{private float moveSpeed; // 玩家移动速度public float walkSpeed = 7; // 行走速度public float sprintSpeed = 10; // 冲刺速度public float slideSpeed = 30; // 滑动速度public float wallrunSpeed = 8.5f;public float climbSpeed = 3;private float desiredMoveSpeed; // 期望的移动速度private float lastDesiredMoveSpeed; // 上一次的期望移动速度public float speedIncreaseMultiplier = 1.5f; // 速度增加倍数public float slopeIncreaseMultiplier = 2.5f; // 斜坡增加倍数public float groundDrag = 5; // 地面时的阻力public float playerHeight = 2; // 玩家身高public LayerMask whatIsGround; // 地面的LayerMaskpublic bool grounded; // 是否在地面上public float jumpForce = 6; // 跳跃力度public float jumpCooldown = 0.25f; // 跳跃冷却时间public float airMultiplier = 0.4f; // 空中移动速度衰减private bool readyToJump = true; // 是否可以跳跃public float crouchSpeed = 3.5f; // 蹲伏时的移动速度public float crouchYScale = 0.5f; // 蹲伏时的Y轴缩放比例private float startYScale; // 初始Y轴缩放比例public float maxSlopAngle = 40; // 最大坡度角度private RaycastHit slopeHit; // 坡度检测的射线信息private bool exitingSlope = true; // 是否正在离开坡度public KeyCode jumpKey = KeyCode.Space; // 跳跃键public KeyCode sprintKey = KeyCode.LeftShift; // 冲刺键public KeyCode crouchKey = KeyCode.LeftControl; // 下蹲键public Climbing climbingScript;public Transform orientation; // 玩家朝向的Transformprivate float h; // 水平输入private float v; // 垂直输入private Vector3 moveDirection; // 移动方向private Rigidbody rb; // 玩家刚体public MovementState state; // 当前玩家的移动状态public enum MovementState{walking,    // 行走sprinting,  // 冲刺wallrunning,//墙跑climbing,crouching,  // 蹲伏sliding,    // 滑动air         // 空中}public bool sliding; // 是否正在滑动public bool wallrunning;public bool climbing;private void Start(){rb = GetComponent<Rigidbody>();rb.freezeRotation = true; // 防止刚体旋转startYScale = transform.localScale.y;  // 记录初始的Y轴缩放}private void Update(){grounded = Physics.Raycast(transform.position, Vector3.down, playerHeight * 0.5f + 0.2f, whatIsGround);MyInput();SpeedControl();StateHandler();if (grounded)rb.drag = groundDrag;elserb.drag = 0;}private void FixedUpdate(){MovePlayer();}private void MyInput(){// 获取水平和垂直输入h = Input.GetAxisRaw("Horizontal");v = Input.GetAxisRaw("Vertical");// 如果按下跳跃键且准备好跳，并且在地面上if (Input.GetKey(jumpKey) && readyToJump && grounded){readyToJump = false;Jump();Invoke(nameof(ResetJump), jumpCooldown);}if (Input.GetKeyDown(crouchKey)){// 调整玩家缩放以模拟蹲下效果transform.localScale = new Vector3(transform.localScale.x, crouchYScale, transform.localScale.z);rb.AddForce(Vector3.down * 5f, ForceMode.Impulse);}// 如果释放下蹲键if (Input.GetKeyUp(crouchKey)){// 恢复到原始Y轴缩放transform.localScale = new Vector3(transform.localScale.x, startYScale, transform.localScale.z);}}private void MovePlayer(){if (climbingScript.exitingWall) return;// 根据朝向计算移动方向moveDirection = orientation.forward * v + orientation.right * h;// 如果在斜坡上并且不是即将离开斜坡if (OnSlope() && !exitingSlope){// 在斜坡上施加力，以便更好地移动rb.AddForce(GetSlopeMoveDirection(moveDirection) * moveSpeed * 20f, ForceMode.Force);// 如果垂直速度为正（上升），则额外施加向下的力，以克服斜坡引起的垂直速度变慢if (rb.velocity.y > 0){rb.AddForce(Vector3.down * 80f, ForceMode.Force);}}else if (grounded) // 如果在地面上{rb.AddForce(moveDirection.normalized * moveSpeed * 10f, ForceMode.Force); // 在地面上施加移动力}else if (!grounded) // 如果在空中{// 在空中施加移动力，乘以空中移动速度衰减系数rb.AddForce(moveDirection.normalized * moveSpeed * 10f * airMultiplier, ForceMode.Force);}// 根据是否在斜坡上决定是否启用重力if (!wallrunning)rb.useGravity = !OnSlope();}private void SpeedControl(){// 如果在斜坡上并且不是即将离开斜坡if (OnSlope() && !exitingSlope){// 如果速度的大小超过了设定的移动速度if (rb.velocity.magnitude > moveSpeed){// 将速度归一化，并乘以设定的移动速度，以限制速度在设定范围内rb.velocity = rb.velocity.normalized * moveSpeed;}}// 如果不在斜坡上else{// 获取水平方向的速度Vector3 flatVel = new Vector3(rb.velocity.x, 0f, rb.velocity.z);// 如果水平速度的大小超过了设定的移动速度if (flatVel.magnitude > moveSpeed){// 限制水平速度在设定范围内Vector3 limitedVel = flatVel.normalized * moveSpeed;// 更新刚体的速度，保持垂直速度不变rb.velocity = new Vector3(limitedVel.x, rb.velocity.y, limitedVel.z);}}}private void Jump(){exitingSlope = true;//rb.velocity = new Vector3(rb.velocity.x, 0f, rb.velocity.z);rb.velocity = Vector3.zero;// 添加向上的力以实现跳跃rb.AddForce(transform.up * jumpForce, ForceMode.Impulse);}private void ResetJump(){readyToJump = true;exitingSlope = false;}private void StateHandler(){if (climbing){state = MovementState.climbing;desiredMoveSpeed = climbSpeed;}else if (wallrunning){state = MovementState.wallrunning;desiredMoveSpeed = wallrunSpeed;}else if (sliding){state = MovementState.sliding;  // 设置当前状态为滑动状态if (OnSlope() && rb.velocity.y < 0.1f){desiredMoveSpeed = slideSpeed;  // 如果在斜坡上并且垂直速度小于0.1，则设置期望移动速度为滑动速度}else{desiredMoveSpeed = sprintSpeed;  // 否则，设置期望移动速度为冲刺速度}}// 如果按住蹲伏键else if (Input.GetKey(crouchKey)){// 设置当前状态为蹲伏状态state = MovementState.crouching;// 设置移动速度为蹲伏速度desiredMoveSpeed = crouchSpeed;}// 如果在地面上并且按住冲刺键else if (grounded && Input.GetKey(sprintKey)){// 设置当前状态为冲刺状态state = MovementState.sprinting;// 设置移动速度为冲刺速度desiredMoveSpeed = sprintSpeed;}// 如果在地面上但没有按住冲刺键else if (grounded){// 设置当前状态为行走状态state = MovementState.walking;// 设置移动速度为行走速度desiredMoveSpeed = walkSpeed;}// 如果不在地面上else{// 设置当前状态为空中状态state = MovementState.air;}if (Mathf.Abs(desiredMoveSpeed - lastDesiredMoveSpeed) > 4f && moveSpeed != 0){StopAllCoroutines();  // 停止所有协程StartCoroutine(SmoothlyLerpMoveSpeed());  // 启动平滑插值移动速度的协程}else{moveSpeed = desiredMoveSpeed;  // 否则，直接将移动速度设置为期望移动速度}lastDesiredMoveSpeed = desiredMoveSpeed;  // 更新上一次的期望移动速度}public bool OnSlope(){// 使用射线检测当前位置向下，获取击中信息存储在slopeHit中if (Physics.Raycast(transform.position, Vector3.down, out slopeHit, playerHeight * 0.5f + 0.3f)){// 计算斜坡的角度float angle = Vector3.Angle(Vector3.up, slopeHit.normal);// 如果角度小于最大允许斜坡角度且不等于0，表示在斜坡上return angle < maxSlopAngle && angle != 0;}// 如果没有击中信息，或者角度不符合条件，表示不在斜坡上return false;}public Vector3 GetSlopeMoveDirection(Vector3 direction){// 使用Vector3.ProjectOnPlane将移动方向投影到斜坡法线上，然后进行归一化return Vector3.ProjectOnPlane(direction, slopeHit.normal).normalized;}private IEnumerator SmoothlyLerpMoveSpeed(){float time = 0;  // 记录经过的时间float difference = Mathf.Abs(desiredMoveSpeed - moveSpeed);  // 计算期望移动速度与当前移动速度的差值float startValue = moveSpeed;  // 记录开始时的移动速度while (time < difference){moveSpeed = Mathf.Lerp(startValue, desiredMoveSpeed, time / difference);  // 使用插值平滑地改变移动速度if (OnSlope()){float slopeAngle = Vector3.Angle(Vector3.up, slopeHit.normal);  // 计算当前坡度的角度float slopeAngleIncrease = 1 + (slopeAngle / 90f);  // 根据坡度角度增加速度// 根据时间、速度增加倍数、坡度增加倍数进行平滑插值time += Time.deltaTime * speedIncreaseMultiplier * slopeIncreaseMultiplier * slopeAngleIncrease;}else{// 在平地上，只考虑时间和速度增加倍数time += Time.deltaTime * speedIncreaseMultiplier;}yield return null;  // 等待下一帧}moveSpeed = desiredMoveSpeed;  // 最终将移动速度设置为期望移动速度}
}

新增脚本Climbing.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;public class Climbing : MonoBehaviour
{public Transform orientation; // 角色朝向public Rigidbody rb; // 角色刚体public PlayerMovement_05 pm_05; // 角色基本运动脚本public LayerMask whatIsWall; // 定义哪些是墙的图层public float climbSpeed = 10; // 攀爬速度public float maxClimbTime = 0.75f; // 最大攀爬时间private float climbTimer; // 攀爬计时器private bool climbing; // 是否正在攀爬public float climbJumpUpForce = 14; // 攀爬跳跃向上的力public float climbJumpBackForce = 12; // 攀爬跳跃向后的力public KeyCode jumpKey = KeyCode.Space; // 跳跃键public int climbJumps = 1; // 攀爬跳跃次数private int climbJumpsLeft; // 剩余可用的攀爬跳跃次数public float detectionLength = 0.7f; // 检测墙的射线长度public float sphereCastRadius = 0.25f; // 射线球的半径public float maxWallLookAngle = 30; // 最大墙面角度private float wallLookAngle; // 当前墙面角度private RaycastHit frontWallHit; // 射线检测到的前方墙面信息private bool wallFront; // 是否在墙面前方private Transform lastWall; // 上一次攀爬的墙面private Vector3 lastWallNormal; // 上一次攀爬的墙面法线方向public float minWallNormalAngleChange = 5; // 最小墙面法线方向变化角度public bool exitingWall; // 是否正在退出墙面public float exitWallTime = 0.2f; // 退出墙面的时间private float exitWallTimer; // 退出墙面计时器private void Update(){WallCheck();StateMachine();if (climbing && !exitingWall){ClimbingMovement();}}private void StateMachine(){// 检查是否在墙面前方，按下攀爬键，墙面角度小于最大角度，且正在退出墙面if (wallFront && Input.GetKey(KeyCode.W) && wallLookAngle < maxWallLookAngle && !exitingWall){// 如果尚未开始攀爬且攀爬时间尚未用完if (!climbing && climbTimer > 0){Debug.Log("开始攀爬");StartClimbing(); // 开始攀爬}// 如果攀爬时间尚未用完if (climbTimer > 0){climbTimer -= Time.deltaTime;}// 如果攀爬时间用完if (climbTimer < 0){Debug.Log("攀爬时间用完，停止攀爬！");StopClimbing(); // 停止攀爬}}// 如果正在退出墙面else if (exitingWall){// 如果正在攀爬if (climbing){StopClimbing(); // 停止攀爬}// 如果退出墙面计时尚未用完if (exitWallTimer > 0)exitWallTimer -= Time.deltaTime;// 如果退出墙面计时用完if (exitWallTimer < 0)exitingWall = false;}else{// 如果正在攀爬if (climbing){StopClimbing(); // 停止攀爬}}// 如果在墙面前方，按下跳跃键，且剩余可用的攀爬跳跃次数大于0if (wallFront && Input.GetKeyDown(jumpKey) && climbJumpsLeft > 0){Debug.Log("进行攀爬跳跃");ClimbJump(); // 进行攀爬跳跃}}private void WallCheck(){// 发出前方射线，检测是否有墙wallFront = Physics.SphereCast(transform.position, sphereCastRadius, orientation.forward, out frontWallHit, detectionLength, whatIsWall);// 计算墙面角度wallLookAngle = Vector3.Angle(orientation.forward, -frontWallHit.normal);// 判断是否是新的墙面，或者墙面法线方向变化大于最小变化角度，或者角色在地面上bool newWall = frontWallHit.transform != lastWall || Mathf.Abs(Vector3.Angle(lastWallNormal, frontWallHit.normal)) > minWallNormalAngleChange;// 如果在墙面前方且是新的墙面if ((wallFront && newWall) || pm_05.grounded){climbTimer = maxClimbTime; // 重置攀爬时间climbJumpsLeft = climbJumps; // 重置可用的攀爬跳跃次数}}private void StartClimbing(){climbing = true; // 设置正在攀爬pm_05.climbing = true; // 触发攀爬状态lastWall = frontWallHit.transform; // 记录上一次攀爬的墙面lastWallNormal = frontWallHit.normal; // 记录上一次攀爬的墙面法线方向}private void ClimbingMovement(){rb.velocity = new Vector3(rb.velocity.x, climbSpeed, rb.velocity.z); // 应用攀爬速度}private void StopClimbing(){climbing = false; // 设置停止攀爬pm_05.climbing = false; // 触发停止攀爬状态}private void ClimbJump(){exitingWall = true; // 设置正在退出墙面exitWallTimer = exitWallTime; // 重置退出墙面计时器// 计算施加到角色身上的力，包括向上的力和沿墙的后退力Vector3 forceToApply = transform.up * climbJumpUpForce + frontWallHit.normal * climbJumpBackForce;rb.velocity = new Vector3(rb.velocity.x, 0f, rb.velocity.z); // 将垂直速度置为0，确保在墙面上的水平移动rb.AddForce(forceToApply, ForceMode.Impulse); // 应用力到刚体，实现攀爬跳跃效果climbJumpsLeft--; // 减少可用的攀爬跳跃次数}
}