释放按钮后重置浮点值

Question

我正在尝试在我的游戏中实现车辆加速机制，当用户在移动中按住 shift 时，车辆会加速。这方面工作正常！ 但我的问题是当按钮被释放并再次按下时，它会记住提升值，然后将其相乘。相反，我希望它在释放时重置为默认值，并且仅在按下按钮时增加。

这是我尝试过的：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class PlayerController : MonoBehaviour
{
[SerializeField]
private float movementSpeed;


private float movementBoost = 2f;
private float resetBoost = 10f;
void Start()
{

}


void Update()
{
    HandleMovementInput();
    Reset();
}

//Handle the player's movement using the keyboard.
void HandleMovementInput()
{
    float moveVertical = Input.GetAxis("Vertical");
    float moveHorizontal = Input.GetAxis("Horizontal");

    Vector3 _movement = new Vector3(moveHorizontal, 0.0f, moveVertical);

    transform.Translate(_movement * movementSpeed * Time.deltaTime, Space.World);

//If the player holds down the shift button while moving, increase speed.
    if (Input.GetButtonDown("Fire3"))
    {
        movementSpeed = movementSpeed * movementBoost;
        _movement *= movementSpeed;
        Debug.Log(movementSpeed);
    }
}

private void Reset()
{
    movementSpeed = resetBoost;
}


}

Answer 1

见https://docs.unity3d.com/ScriptReference/Input.GetButtonUp.html Input.GetButtonUp()的描述和规则

if (Input.GetButtonUp("Fire3"))
{
    Reset();
}