unity3d - 如何使 map 的边界和该 map 的平移相同？

Question

我使用的 map 比我查看的屏幕大。因此，我需要能够平移该 map 。我在夹紧相机和 map 时遇到问题。我希望能够使用图像的尺寸作为夹具的宽度和高度。问题是单位。

图像为 2144 x 1708
相机换位是个位数 (14 x 7) 或类似的东西。

我使用的所有代码都在下面。

private Vector3 mouseOrigin;    // Position of cursor when mouse dragging starts
private bool isPanning;     // Is the camera being panned?

public bool useBoundary = true;
public Vector2 boundaryMin;
public Vector2 boundaryMax;

public Image map;


void Start()
{

    Camera cam = Camera.main;

    float mapRatio = map.rectTransform.rect.width / map.rectTransform.rect.height;

    float mapScreenHeight = (1.5f * cam.orthographicSize);
    float mapScreenWidth = (3f * mapScreenHeight) * cam.aspect;

    boundaryMin = new Vector2(0, 1);
    boundaryMax = new Vector2(map.rectTransform.rect.width, map.rectTransform.rect.height);



}


void Update()
{
    // Get the left mouse button
    if (Input.GetMouseButtonDown(0))
    {
        // Get mouse origin
        mouseOrigin = Input.mousePosition;
        isPanning = true;
    }


    // Disable movements on button release
    if (!Input.GetMouseButton(0)) isPanning = false;

    // Rotate camera along X and Y axis

    // Move the camera on it's XY plane
    if (isPanning)
    {
        Vector3 pos = Camera.main.ScreenToViewportPoint(Input.mousePosition - mouseOrigin);
        Vector3 move = new Vector3(pos.x * panSpeed, pos.y * panSpeed, 0);
        transform.Translate(move, Space.Self);
        BoundaryCheck();
    }

}

void BoundaryCheck()
{
    if (!useBoundary)
        return;

    Vector3 newPos = transform.position;

    newPos.x = Mathf.Clamp(newPos.x, boundaryMin.x, boundaryMax.x);
    newPos.y = Mathf.Clamp(newPos.y, boundaryMin.y, boundaryMax.y);
    transform.position = newPos;
}

}

任何帮助将不胜感激。

Answer 1

您可以使用 Unity UI - Scroll Rect 执行此操作。

退房 Unity UI - Scroll Rect - Introduction