问按住shift键进行移动和冲刺

EN

public class Dash : MonoBehaviour
{

private Rigidbody rb;

public float dashSpeed;
private float dashTime;
public float startDashTime;
private int direction;


void Update()
{
    //dash
    if (direction == 0)
    {
        if (Input.GetKey(KeyCode.LeftShift) && Input.GetKeyDown(KeyCode.A))
        {
            direction = 1;
        }
        else if (Input.GetKey(KeyCode.LeftShift) && Input.GetKeyDown(KeyCode.D))
        {
            direction = 2;
        }
        else if (Input.GetKey(KeyCode.LeftShift) && Input.GetKeyDown(KeyCode.W))
        {
            direction = 3;
        }
        else if (Input.GetKey(KeyCode.LeftShift) && Input.GetKeyDown(KeyCode.S))
        {
            direction = 4;
        }