自機の挙動＆ブーストの挙動

moveCube

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

public class CubeMove : MonoBehaviour
{
    [SerializeField]
    private float _baseMoveSpeed;
    [SerializeField]
    private AnimationCurve _curve;

    private float _curveTime;
    [SerializeField]
    private float _curveTimeSpeed;
    private bool _boostFlag;


    // Start is called before the first frame update
    void Start()
    {
        
    }

    // Update is called once per frame
    void Update()
    {
        float moveSpeed;

        if(Input.GetKey(KeyCode.Space))
        {
            if (_boostFlag == false)
                _boostFlag = true;
            if (_curveTime != 0f)
                _curveTime = 0f;
        }

        if(_boostFlag == true)
        {
            _curveTime = _curveTime + _curveTimeSpeed;
            if(_curveTime > 1.0)
            {
                _curveTime = 0;
                _boostFlag = false;
            }
        }

        moveSpeed = _baseMoveSpeed + _curve.Evaluate(_curveTime);

        if (Input.GetKey(KeyCode.W))
        {
            this.gameObject.transform.Translate(0f, 0f, 1f * moveSpeed);
        }
        if (Input.GetKey(KeyCode.A))
        {
            this.gameObject.transform.Translate(-1f * moveSpeed, 0f, 0f);
        }
        if (Input.GetKey(KeyCode.S))
        {
            this.gameObject.transform.Translate(0f, 0f, -1f * moveSpeed);
        }
        if (Input.GetKey(KeyCode.D))
        {
            this.gameObject.transform.Translate(1f * moveSpeed, 0f, 0f);
        }
    }
}