Question

您好我正在尝试将在3D项目上工作的代码转换为游戏对象，我点击鼠标即可在2D上工作，因为我现在正在进行2D项目

public class SetTower : MonoBehaviour {

    public int selected;
    public GameObject[] towers;
    public float[] prices;
    public GameObject tile;

    private Money moneyScript;

    // Use this for initialization
    void Start ()
    {
        moneyScript = GameObject.Find("GameLogic").GetComponent<Money>();
    }

    // Update is called once per frame
    void Update ()
    {
        Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
        RaycastHit hit;

        if (Physics.Raycast(ray, out hit, 20))
        {
            if(hit.transform.tag == "Tile")
            {
                tile = hit.transform.gameObject;
            }
            else
            {
                tile = null;
            }

            if (Input.GetMouseButtonDown(0) && tile != null)
            {
                TileTaken tileScript = tile.GetComponent<TileTaken>();

                if(!tileScript.isTaken && moneyScript.money >= prices[selected])
                {
                    moneyScript.money -= prices[selected];
                    Vector2 pos = new Vector2(tile.transform.position.x, tile.transform.position.y);

                    tileScript.tower = (GameObject)Instantiate(towers[selected], pos, Quaternion.identity);
                    tileScript.isTaken = true;
                }
            }
        }
    }
}

Answer 1

将Camera.main.ScreenPointToRay替换为Camera.main.ScreenToWorldPoint，将Physics.Raycast替换为Physics2D.Raycast，将RaycastHit替换为RaycastHit2D。确保还切换到 2D碰撞器。例如， Box Collider 应替换为 Box Collider 2D 。

public class SetTower : MonoBehaviour
{
    public int selected;
    public GameObject[] towers;
    public float[] prices;
    public GameObject tile;

    private Money moneyScript;

    // Use this for initialization
    void Start()
    {
        moneyScript = GameObject.Find("GameLogic").GetComponent<Money>();
    }

    // Update is called once per frame
    void Update()
    {
        Vector2 ray = Camera.main.ScreenToWorldPoint(Input.mousePosition);
        RaycastHit2D hit = Physics2D.Raycast(ray, Vector2.zero, 20);

        if (hit)
        {
            if (hit.transform.tag == "Tile")
            {
                tile = hit.transform.gameObject;
            }
            else
            {
                tile = null;
            }

            if (Input.GetMouseButtonDown(0) && tile != null)
            {
                TileTaken tileScript = tile.GetComponent<TileTaken>();

                if (!tileScript.isTaken && moneyScript.money >= prices[selected])
                {
                    //moneyScript.money -= prices[selected];
                    Vector2 pos = new Vector2(tile.transform.position.x, tile.transform.position.y);

                    //tileScript.tower = (GameObject)Instantiate(towers[selected], pos, Quaternion.identity);
                    //tileScript.isTaken = true;
                }
            }
        }
    }
}

将Raycast从3D转换为2D

1 个答案: