public static Unit[] getmatch4Units_towards_onTable(Unit u, Vector2Int diagonal, Unit[,] unitsTable)
{
Unit linkedUnit_corner = BoardUtilities.getSameIdUnit_Towards_onTable(u, diagonal, unitsTable);
Unit linkedUnit_side1 = BoardUtilities.getSameIdUnit_Towards_onTable(u, new Vector2Int(diagonal.x, 0), unitsTable);
Unit linkedUnit_side2 = BoardUtilities.getSameIdUnit_Towards_onTable(u, new Vector2Int(0, diagonal.y), unitsTable);
if (linkedUnit_corner && linkedUnit_side1 && linkedUnit_side2)
{
/*make sure no overlaps*/
if (linkedUnit_corner.BelongingBlocks < 1 &&
linkedUnit_side1.BelongingBlocks < 1 &&
linkedUnit_side2.BelongingBlocks < 1)
{
/*make sure to put self in the first slot*/
Unit[] match4Group = new Unit[] { u, linkedUnit_corner, linkedUnit_side1, linkedUnit_side2 };
return(match4Group);
}
}
return(null);
}