maze.js

  var x = 1;
  var y = 1;
  
  $posx = 1;
  $posy = 1;
  
  macros['navigate'] =
	{
		handler: function(obj, fnc, val)
		{
			x = $posx; y = $posy;
			if(maze[y-1][x] eq 1) { 
				$North = 1; 
			} else if(maze[x][y+1] eq 2) {
				$Exit = 1;
			} else {
				$North = 0;
			}
         
			if(maze[y+1][x] eq 1) { 
				$South = 1; 
			} else if(maze[x][y-1] eq 2) {
				$Exit = 1;
			} else {
				$South = 0;
			}
         
			if(maze[y][x-1] eq 1) { 
				$West = 1; 
			} else if(maze[x-1][y] eq 2) {
				$Exit = 1;
			} else {
				$West = 0;
			}
         
			if(maze[y][x+1] eq 1) { 
				$East = 1; 
			} else if(maze[x+1][y] eq 2) {
				$Exit = 1;
			} else {
				$East = 0;
			}
		}
	 }