I am switching from Java to C# and I am wondering if this is possible? What I want to do is create a two dimensional array of the type Enum {north, south, east, west}. That way I can call map[1,2].north to find out if that cell on the map has a north wall or not.
Sorry for the crude code, I do not have access to my computer at the moment, so I am being a bit abstract.
For the enum:
enum Dirs { North, South, East, West } Just declare an array as:
Dirs[,] dirs = new Dirs[10, 10]; If you need each cell to be able to have several walls, mark the enum with the [Flags] attribute and make the values to be powers of 2:
[Flags] enum Dirs { North = 1 << 0, South = 1 << 1, East = 1 << 2, West = 1 << 3 } Thus you'll be able to set, for instance:
dirs[1, 2] = Dirs.North | Dirs.East; And as @Scott Chamberlain mentioned in his comment - to check a direction you can do:
bool hasNorthWall = dirs[1, 2].HasFlag(Dirs.North); 
Flags attribute does not change the values of the enum members. If you use it, you need to explicitly set the values to be powers of 2, otherwise you'll end up with some undesired behavior.
var hasNorthWall = dirs[1,2].HasFlag(Dirs.North);
[Flags] enum Dirs { North = 1<<0, South = 1<<1, East = 1<<2, West = 1<<3 }. It makes it a lot easier to read when you start getting in to enums that use a lot of possible flag values, for example SomeFlag = 1048576 vs SomeFlag = 1<<20.try that:
private EnumName[,] arrayName; This is how you declare and test for walls using an enum.
namespace ConsoleApplication1 { [Flags] enum Wall { North = 1, South = 2, East = 4, West = 8 } static class Program { static void Main(string[] args) { int grid = 10; var map=new Wall[grid, grid]; // fill in values here ... if(map[1, 2].HasFlag(Wall.North)) { // cell (2, 3) has a wall in the north direction } } } } 
enumsin C# are quite a bit weaker.