Question

我有一块微薄的地图(Tl),当火箭击中它时,某些半径的碎片应当销毁。

我曾试图利用GetTilesBlock和Destroy功能,但我没有工作。

public void OnCollisionEnter2D(Collision2D collision)
    {
        
            int posx = (int)transform.position.x;
            int posy = (int)transform.position.y;
            int posz = (int)transform.position.z;
            Vector3Int pos = new Vector3Int(posx, posy, posz);
            Vector3Int radiusBox = new Vector3Int(3, 3, 3);
            BoundsInt Box = new BoundsInt(pos, radiusBox);
            TileBase[] tiles = Tl.GetTilesBlock(Box);
            foreach(TileBase x in tiles)
            {
                Destroy(x);
            }
            

        Destroy(gameObject);
    }

Answer 1

What I did was loop through all tiles within a box with sides of the radius and then check distance to make it a circle. If that sounds confusing then heres my code. A little messy but it gets the job done.

        Vector2 pos = transform.position; //center of the circle

    ground = FindAnyObjectByType<Tilemap>();//Get the tilemap

    for (int x = -ExplosionRadius; x < ExplosionRadius; x++)
    {
        for (int y = -ExplosionRadius; y < ExplosionRadius; y++) //find the box
        {
            Vector3Int Tilepos = ground.WorldToCell(new Vector2(pos.x + x, pos.y + y));
            if (Vector3.Distance(pos, Tilepos) <= ExplosionRadius) //check distance to make it a circle
            {
                ground.SetTile(Tilepos, null);
            }
        }
    }

Hope this helps.

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