小编Але*_*ндр的帖子

我需要制作一张地图UI。地图很大，因此用户需要缩放和拖动它。对于缩放现在我使用这个：

public class ScaleMaps : MonoBehaviour
{
    private float zoom;
    public float zoomSpeed;
    public Image map;

    public float zoomMin;
    public float zoomMax;

    void Update()
    {
        zoom = (Input.GetAxis("Mouse ScrollWheel") * Time.deltaTime * zoomSpeed);
        map.transform.localScale += new Vector3(map.transform.localScale.x * zoom, map.transform.localScale.y * zoom, 0);
        Vector3 scale = map.transform.localScale;
        scale = new Vector3(Mathf.Clamp(map.transform.localScale.x, zoomMin, zoomMax), Mathf.Clamp(map.transform.localScale.y, zoomMin, zoomMax), 0);
        map.transform.localScale = scale;
    }
}

如何用 拖动图像mouse？