所以，我還在 Unity 中開發游戲，我現在唯一的問題是我不知道如何在釋放左移后慢慢降低角色的速度。按住 shift 的同時緩慢增加速度是我唯一做過的，因為我使用了遞增技術，但釋放左 shift 后速度緩慢降低不是。有人能幫我嗎？這是代碼，我很抱歉，我實際上是這方面的初學者：
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class PlayerMovement : MonoBehaviour
{
public CharacterController controller;
//Codes for setting walk and sprint speed (You should put speed in "Default Speed". "Walk Speed" is public so I can see if my speed is increasing)
public float defaultSpeed = 8f;
public float walkSpeed = 8f;
public float sprintIncrease = 15f;
public float sprintLimit = 16f;
//Gravity force
public float gravity = -60f;
//Probably jump height?
public float jumpHeight = 2f;
//For checking if you're on the ground
public Transform groundCheck;
public float groundDistance = 0.5f;
public LayerMask groundMask;
//Code to check if you are on the ground
Vector3 velocity;
bool isGrounded;
// Update is called once per frame
void Update()
{
//For checking again if you're on the ground
isGrounded = Physics.CheckSphere(groundCheck.position, groundDistance, groundMask);
//Code to slowly increase sprint FORWARD while holding left shift
if (Input.GetKey(KeyCode.LeftShift) && Input.GetAxis("Vertical") > 0)
{
walkSpeed = sprintIncrease * Time.deltaTime;
}
//Code to prevent sprinting while holding S and when combined with A or D
else if (Input.GetKey(KeyCode.LeftShift) && Input.GetAxis("Vertical") < 0)
{
walkSpeed = defaultSpeed;
}
//Code for allowing to slowly increase sprint LEFT sideways
else if (Input.GetKey(KeyCode.LeftShift) && Input.GetAxis("Horizontal") < 0)
{
walkSpeed = sprintIncrease * Time.deltaTime;
}
//Code for allowing to slowly increase sprint RIGHT sideways
else if (Input.GetKey(KeyCode.LeftShift) && Input.GetAxis("Horizontal") > 0)
{
walkSpeed = sprintIncrease * Time.deltaTime;
}
//To stop Sprint Speed while holding shift from exceeding Sprint Limit
if (walkSpeed > sprintLimit)
{
walkSpeed = sprintLimit;
}
//Executes when shift is released, to slowly go back to default speed(This is my problem)
if (Input.GetKeyUp(KeyCode.LeftShift))
{
walkSpeed = defaultSpeed;
}
//To check if you're grounded so velocity doesn't increase
if (isGrounded && velocity.y < 0)
{
velocity.y = -2f;
}
//The basic horizontal and vertical axises
float x = Input.GetAxis("Horizontal");
float z = Input.GetAxis("Vertical");
//The basic code for movement
Vector3 move = transform.right * x transform.forward * z;
controller.Move(move * walkSpeed * Time.deltaTime);
//The code for jumping
if (Input.GetButtonDown("Jump") && isGrounded)
{
velocity.y = Mathf.Sqrt(jumpHeight * -2f * gravity);
}
velocity.y = gravity * Time.deltaTime;
controller.Move(velocity * Time.deltaTime);
}
}
我提前感謝大家。
uj5u.com熱心網友回復：
if (!Input.GetKey(KeyCode.LeftShift))
{
walkSpeed -= sprintIncrease * Time.deltaTime;
}
上面的代碼將按照您的要求進行。請注意，您實作東西的方式對初學者友好，但對性能不友好。
uj5u.com熱心網友回復：
好的，我自己已經弄清楚了。我重新排列了 ifs 和 else 陳述句，看起來更有條理。我添加了 else 陳述句，如果你在步行時不按住 shift，它會隨著 sprint 的增加不斷地減去步行速度，但是為了防止它低于默認速度，我添加了一個 if 陳述句，如果步行速度變為低于默認速度，則變為等于默認速度。請注意，我重新排列了我的陳述句以觸發 else 陳述句。
using System.Collections;
使用 System.Collections.Generic；使用 UnityEngine；
公共類 PlayerMovement : MonoBehaviour { 公共 CharacterController 控制器；
//Codes for setting walk and sprint speed (You should put speed in "Default Speed". "Walk Speed" is public so I can see if my speed is changing or not)
public float defaultSpeed = 8f;
public float walkSpeed = 8f;
public float sprintIncrease = 15f;
public float sprintLimit = 16f;
//Gravity force
public float gravity = -60f;
//Probably jump height?
public float jumpHeight = 2f;
//For checking if you're on the ground
public Transform groundCheck;
public float groundDistance = 0.5f;
public LayerMask groundMask;
//Code to check if you are on the ground
Vector3 velocity;
bool isGrounded;
// Update is called once per frame
void Update()
{
//For checking again if you're on the ground
isGrounded = Physics.CheckSphere(groundCheck.position, groundDistance, groundMask);
//Code to prevent sprinting while holding S and when combined with A or D(New Code)
if (Input.GetKey(KeyCode.LeftShift) && Input.GetAxis("Vertical") < 0)
{
walkSpeed -= sprintIncrease * Time.deltaTime;
}
//Code to slowly increase sprint FORWARD while holding left shift
else if (Input.GetKey(KeyCode.LeftShift) && Input.GetAxis("Vertical") > 0)
{
walkSpeed = sprintIncrease * Time.deltaTime;
}
//Code for allowing to slowly increase sprint LEFT sideways
else if (Input.GetKey(KeyCode.LeftShift) && Input.GetAxis("Horizontal") < 0)
{
walkSpeed = sprintIncrease * Time.deltaTime;
}
//Code for allowing to slowly increase sprint RIGHT sideways
else if (Input.GetKey(KeyCode.LeftShift) && Input.GetAxis("Horizontal") > 0)
{
walkSpeed = sprintIncrease * Time.deltaTime;
}
//To make sure that your speed decrease smoothly if not holding left shift(New code)
else
{
walkSpeed -= sprintIncrease * Time.deltaTime;
}
//To stop Sprint Speed while holding shift from exceeding Sprint Limit
if (walkSpeed > sprintLimit)
{
walkSpeed = sprintLimit;
}
//To stop Walk Speed from getting lower than Default Speed(New Code)
if (walkSpeed < defaultSpeed)
{
walkSpeed = defaultSpeed;
}
//To check if you're grounded so velocity doesn't increase
if (isGrounded && velocity.y < 0)
{
velocity.y = -2f;
}
//The basic horizontal and vertical axises
float x = Input.GetAxis("Horizontal");
float z = Input.GetAxis("Vertical");
//The basic code for movement
Vector3 move = transform.right * x transform.forward * z;
controller.Move(move * walkSpeed * Time.deltaTime);
//The code for jumping
if (Input.GetButtonDown("Jump") && isGrounded)
{
velocity.y = Mathf.Sqrt(jumpHeight * -2f * gravity);
}
velocity.y = gravity * Time.deltaTime;
controller.Move(velocity * Time.deltaTime);
}
}
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