CODEWITHSUNDEEP
c#unity-game-engine
Frieder Hannenheim
Frieder Hannenheim

Reputation: 1232

Can i get all the Vector2Ints from an Boundsint? C# Unity

I want to have all of the cells in a Tilemap into an array, I've tried:

Vector3Int[] Example = Examplemap.cellBounds

but that didn't work. Please help me

Upvotes: 0

Views: 1759

Answers (1)

Programmer
Programmer

Reputation: 125245

Enumerate over Tilemap.cellBounds.allPositionsWithin which should return BoundsInt in each loop. Use the HasTile to check if there is a tile that position in the Tilemap. If there is a tile in that position, use Tilemap.CellToWorld to covert the position to world then add it to a List.

List<Vector3> GetCellsFromTilemap(Tilemap tilemap)
{
    List<Vector3> worldPosCells = new List<Vector3>();
    foreach (var boundInt in tilemap.cellBounds.allPositionsWithin)
    {
        //Get the local position of the cell
        Vector3Int relativePos = new Vector3Int(boundInt.x, boundInt.y, boundInt.z);
        //Add it to the List if the local pos exist in the Tile map
        if (tilemap.HasTile(relativePos))
        {
            //Convert to world space
            Vector3 worldPos = tilemap.CellToWorld(relativePos);
            worldPosCells.Add(worldPos);
        }
    }
    return worldPosCells;
}

To use:

Tilemap Examplemap = ...;
List<Vector3> cells = GetCellsFromTilemap(Examplemap);

If you prefer the cell positions to be returned in local space, replace tilemap.CellToWorld(relativePos) with tilemap.CellToLocal(relativePos).

List<Vector3> GetCellsFromTilemap(Tilemap tilemap)
{
    List<Vector3> worldPosCells = new List<Vector3>();
    foreach (var boundInt in tilemap.cellBounds.allPositionsWithin)
    {
        //Get the local position of the cell
        Vector3Int relativePos = new Vector3Int(boundInt.x, boundInt.y, boundInt.z);
        //Add it to the List if the local pos exist in the Tile map
        if (tilemap.HasTile(relativePos))
        {
            //Convert to world space
            Vector3 localPos = tilemap.CellToLocal(relativePos);
            worldPosCells.Add(localPos);
        }
    }
    return worldPosCells;
}

Finally, if you just want the Vector2Ints with no conversion then just add the data from the loop directly to the List:

List<Vector3Int> GetCellsFromTilemap(Tilemap tilemap)
{
    List<Vector3Int> cells = new List<Vector3Int>();
    foreach (var boundInt in tilemap.cellBounds.allPositionsWithin)
    {
        //Get the local position of the cell
        Vector3Int relativePos = new Vector3Int(boundInt.x, boundInt.y, boundInt.z);
        //Add it to the List if the local pos exist in the Tile map
        if (tilemap.HasTile(relativePos))
            cells.Add(relativePos);
    }
    return cells;
}

Upvotes: 1

Related Questions