CharacterController 碰撞问题

Question

我在游戏中添加了蹲伏的功能。我这样做的方法是改变控制器的高度和中心 y 值。问题是当我蹲下到平台下方时，玩家仍然会与平台发生碰撞，即使平台足够明显 space。

如果我将控制器高度设置为蹲伏高度作为默认高度，玩家就可以顺利地进入平台下方。虽然，如果我使用中心偏移，则会发生碰撞问题。

bool isCrouching; float defaultHeight; Vector3 localCameraPos;

private CharacterController controller = null;
private Camera camera;

void Start()
{
    controller = GetComponent<CharacterController>();
    camera = camera.main;
    localCameraPos = camera.transform.localPosition;
    defaultHeight = controller.height;
}
void Update()
{
    isCrouching = Input.GetKey(KeyCode.C);
}
void FixedUpdate()
{
    DoCrouch();
}
void DoCrouch()
{
    var height = isCrouching ? defaultHeight / 2 : defaultHeight;

    controller.height = Mathf.Lerp(controller.height, height, 5 * Time.deltaTime);
    controller.center = Vector3.down * (defaultHeight - controller.height) / 2.0f;

    var camPos = new Vector3(0, camera.transform.localPosition.y, 0);
    camPos.y = Mathf.Lerp(camPos.y, localCameraPos.y - (defaultHeight - controller.height), 5 * Time.deltaTime);

    camera.transform.localPosition = camPos + localCameraPos;
}

玩家通过调用CharacterController.move()函数移动。

void FixedUpdate()
{
    float horizontal = Input.GetAxis("Horizontal");
    float vertical = Input.GetAxis("Vertical");

    isWalking = !Input.GetKey(KeyCode.LeftShift);

    Vector2 _inputVector = new Vector2(horizontal, vertical);

    if (_inputVector.sqrMagnitude > 1) { _inputVector.Normalize(); }

    Vector3 desireMoveDir = transform.right * _inputVector.x;
    desireMoveDir += transform.forward * _inputVector.y;

    if (Physics.SphereCast(transform.position, controller.radius, Vector3.down, out RaycastHit hit, controller.height / 2f, 1))
    {
        desireMoveDir = Vector3.ProjectOnPlane(desireMoveDir, hit.normal).normalized;
    }

    moveDirection = desireMoveDir * MoveSpeed;

    controller.Move(moveDirection * Time.fixedDeltaTime);
}

如何解决这个问题？谢谢

Answer 1

嗯，刚刚解决了这个问题。我有一个 step offset 设置为 0.7。将其更改为 0，解决了问题。才用了两天...不错

CharacterController 碰撞问题

CharacterController collision issue

c#

controller

collision-detection

unity3d

game-physics