Преобразование Raycast из 3D в 2D

Question

Привет им пытаются преобразовать код, который работает на 3D-проекта, чтобы получить GameObject, который я нажимаю на моей мыши работать на 2D, так как им в настоящее время делает проект 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() 
    { 
     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

Заменить Camera.main.ScreenPointToRay с Camera.main.ScreenToWorldPoint, Physics.Raycast с Physics2D.Raycast и RaycastHit с RaycastHit2D. Обязательно переключитесь на 2D-коллайдеры. Например, Box Collider следует заменить на 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; 
       } 
      } 
     } 
    } 
}