Unity3D 第三人稱移動解決方法彙總

Movement Solutions

private float speed;
    private Rigidbody rb;

    void Start()
    {
        rb = GetComponent<Rigidbody>();
    }
    void FixedUpdate()
    {
        float h = Input.GetAxis("Horizontal");
        float v = Input.GetAxis("Vertical");

        MovementSolution1(h, v);
    }

    private void MovementSolution1(float h, float v)
    {
        Vector3 dir = new Vector3(h, 0, v);
        rb.MovePosition(rb.position + dir * speed * Time.fixedDeltaTime);
    }

    private void MovementSolution2(float h, float v)
    {
        Vector3 movement = new Vector3(0, 0, 0);
        movement.Set(h, 0f, v);
        movement = movement.normalized * speed * Time.fixedDeltaTime;
        rb.MovePosition(rb.position + movement);
    }

    private void MovementSolution3(float h, float v)
    {
        Vector3 movement = new Vector3(h, 0f, v);
        movement = movement.normalized * speed * Time.fixedDeltaTime;
        transform.Translate(movement);
    }

    private void MovementSolution4(float h, float v)
    {
        Vector3 movement = new Vector3(h, 0f, v);
        movement = movement.normalized * speed * Time.fixedDeltaTime;
        //持續遞增       
        rb.AddForce(movement);
    }

    private void MovementSolution5(float h, float v)
    {
        Vector3 movement = new Vector3(h, 0f, v);
        movement = movement.normalized * speed * Time.fixedDeltaTime;
        //持續不變      
        rb.velocity = movement;
    }
           

Rotation Solution

private Rigidbody rb;
private float rotateSpeed;
private float rotateLimit;

private void Start()
{
    rb = GetComponent<Rigidbody>();
}

void FixedUpdate(){
    //水準
    float mouseX = Input.GetAxis("Mouse X");
    //垂直
    float mouseY = Input.GetAxis("Mouse Y"); 

    RotationSolution1(mouseX, mouseY);
    RotationSolution2(mouseX, mouseY);
}

private float ClampRotation(float rotation, float currentLocalRotation){
    float currentRotationY = currentLocalRotation;
    currentRotationY += rotation;
    currentRotationY = Mathf.Clamp(currentRotationY, -rotateLimit, rotateLimit);
    return currentRotationY;
}

//相機上下旋轉，人物左右旋轉
private void RotationSolution1(float mouseX, float mouseY){
    //相機垂直旋轉
    camera.transform.localRotation = Quaternion.Euler(ClmapRotation(mouseY, camera.transfrom.localRotation.y), camera.transform.localRotation.x , 0);

    //人物水準旋轉
    transform.localRotation = transform.localRotation * Quaternion.Euler(0, mouseX, 0);
}

//人物上下左右旋轉
private void RotationSolution2(float mouseX, float mouseY){
    //設定垂直旋轉範圍
    float currentRotationY = transfrom.localRotation.y;
    currentRotationY += mouseY;
    currentRotationY = Mathf.Clamp(currentRotationY, -rotateLimit, rotateLimit);

    transform.localRotation = transform.localRotation * Quaternion.Euler(0, mouseX, 0);
}

private void RotationSolution3(){
    //人物左右旋轉
    rb.MoveRotation(rb.rotation * Quaternion.Euler(rotation));

    //相機上下旋轉
    currentCameraRotationX += cameraRotationX;
    currentCameraRotationX = Mathf.Clamp(currentCameraRotationX, -cameraRotationLimit,     cameraRotationLimit);

    camera.transform.localEulerAngles = new Vector3(-currentCameraRotationX, 0f, 0f);
}