是否可以将Unity GameObject强制转换为ScriptableObject类类型?

时间:2020-01-04 17:26:52

标签: c# unity3d game-engine

我创建了可编写脚本的对象自定义类Card:

[CreateAssetMenu(fileName = "Card", menuName = "Card")]
public class Card : ScriptableObject
{
    public new string name;
    public string Description;
    public Sprite HeroImage;
    public int Attack;
    public int Health;
    public int XCoord;
    public int YCoord;
}

我已经通过Unity Editor添加了大量此类对象,并在2d Canvas上实例化了诸如 GameObjects 之类的对象:

for (int i = 0; i < 5; i++)
{
    GameObject go = Instantiate(CardPrefabTemplate, new Vector3(x_delt, 0, 0), Quaternion.identity) as GameObject;
    go.transform.SetParent(MPlayerOpenedCards.transform, false);
    go.gameObject.name = "CardUIPrefabOpened" + i;
    x_delt += (int)(CardPrefabTemplBackgrRect.rect.width * CardPrefabTemplateBackground.localScale.x) + x_card_margin;
}

通过鼠标单击Raycast后,我得到当前单击的卡 GameObject

GameObject RaycastOpenedCard(string prefabName)
{
    //Set up the new Pointer Event
    m_PointerEventData = new PointerEventData(m_EventSystem);
    //Set the Pointer Event Position to that of the mouse position
    m_PointerEventData.position = Input.mousePosition;
    //Create a list of Raycast Results
    List<RaycastResult> results = new List<RaycastResult>();
    //Raycast using the Graphics Raycaster and mouse click position
    m_Raycaster.Raycast(m_PointerEventData, results);

    if (Input.GetMouseButtonDown(0))
    {
        foreach (RaycastResult result in results)
        {
            if (result.gameObject.transform.parent != null && Regex.IsMatch(result.gameObject.transform.parent.name, prefabName))
            {
                Debug.Log("Hit " + result.gameObject.transform.parent.name);
                return result.gameObject.transform.parent.gameObject;
            }
        }
    }
    return null;
}

在程序的其他部分,我有List<Card> ActiveCards列表,我无法投射光线投射 GameObject 到可脚本化对象类 Card >:

GameObject g = RaycastOpenedCard("CardUIPrefabOpened");
if (g != null)
{
    if (ActiveCards != null && ActiveCards.Count < 5)
    {
        Mplayer.ActiveCards.Add(g.GetComponent<Card>());
    }
}

是否可以将Unity GameObject 转换为 ScriptableObject 类类型?

错误:

ArgumentException:GetComponent要求所请求的组件'Card'源自MonoBehaviour或Component或为接口。 UnityEngine.GameObject.GetComponent [T]()(在C:/buildslave/unity/build/Runtime/Export/Scripting/GameObject.bindings.cs:28) BoardManager.Update()(位于Assets / Scripts / BoardManager.cs:202)

1 个答案:

答案 0 :(得分:1)

简单地说,不,不可能将GameObject强制转换为ScriptableObject,与此相反。这是因为GameObject不继承自ScriptableObjectScriptableObject也不继承自GameObject。但是,它们都直接继承自Object

GameObject go = Instantiate(CardPrefabTemplate, new Vector3(x_delt, 0, 0), Quaternion.identity) as GameObject;行的原因是因为InstantiateObject作为参数并将其克隆并返回ObjectScriptableObjectObject,因此可以使用。而且您可以将Object投射到GameObject上,这样也可以工作。但这并不能带来太大的效果,因为您要做的唯一事情就是Object部分,因此在您的示例中,Object.name

现在GetComponent失败的原因是因为它只能寻找MonoBehaviourScriptableObject(卡)不是)。 MonoBehaviour还会从Object继承一点。

所以真正的问题是,您首先想实现什么目标?