如何停止对角线运动-Unity 2d？

Question

这是我在Unity（2d）中进​​行玩家移动的脚本。

当按下两个方向键时-而不是沿对角线移动-我需要玩家沿最近按下的方向移动（如果释放该方向，则已经按住的方向）

if (!attacking)
{
    if (Input.GetAxisRaw("Horizontal") > 0.5f || Input.GetAxisRaw("Horizontal") < -0.5f)
    {
        //transform.Translate (new Vector3(Input.GetAxisRaw("Horizontal") * moveSpeed * Time.deltaTime, 0f, 0f ));
        myRigidBody.velocity = new Vector2(Input.GetAxisRaw("Horizontal") * currentMoveSpeed, myRigidBody.velocity.y);
        PlayerMoving = true;
        lastMove = new Vector2(Input.GetAxisRaw("Horizontal"), 0f);
    }

    if (Input.GetAxisRaw("Vertical") > 0.5f || Input.GetAxisRaw("Vertical") < -0.5f)
    {
        //transform.Translate(new Vector3(0f, Input.GetAxisRaw("Vertical") * moveSpeed * Time.deltaTime, 0f));
        myRigidBody.velocity = new Vector2(myRigidBody.velocity.x, Input.GetAxisRaw("Vertical") * currentMoveSpeed);
        PlayerMoving = true;
        lastMove = new Vector2(0f, Input.GetAxisRaw("Vertical"));
    }
}

Answer 1

这是我的处理方式：当只有一个轴处于活动状态（水平或垂直）时，请记住该方向。 如果两者都存在，则优先考虑不是的优先级。 以下代码完全按照您的描述工作，但必须适应您的其他要求。

void Update()
{
    float currentMoveSpeed = moveSpeed * Time.deltaTime;

    float horizontal = Input.GetAxisRaw("Horizontal");
    bool isMovingHorizontal = Mathf.Abs(horizontal) > 0.5f;

    float vertical = Input.GetAxisRaw("Vertical");
    bool isMovingVertical = Mathf.Abs(vertical) > 0.5f;

    PlayerMoving = true;

    if (isMovingVertical && isMovingHorizontal)
    {
        //moving in both directions, prioritize later
        if (wasMovingVertical)
        {
            myRigidBody.velocity = new Vector2(horizontal * currentMoveSpeed, 0);
            lastMove = new Vector2(horizontal, 0f);
        }
        else
        {
            myRigidBody.velocity = new Vector2(0, vertical * currentMoveSpeed);
            lastMove = new Vector2(0f, vertical);
        }
    }
    else if (isMovingHorizontal)
    {
        myRigidBody.velocity = new Vector2(horizontal * currentMoveSpeed, 0);
        wasMovingVertical = false;
        lastMove = new Vector2(horizontal, 0f);
    }
    else if (isMovingVertical)
    {
        myRigidBody.velocity = new Vector2(0, vertical * currentMoveSpeed);
        wasMovingVertical = true;
        lastMove = new Vector2(0f, vertical);
    }
    else
    {
        PlayerMoving = false;
        myRigidBody.velocity = Vector2.zero;
    }
}

结果示例（粉色线是lastMove ）：