Grid/Base/GridRules.cs
using Sandbox;

    public static class GridRules
    {
        public static bool CanMoveTo(GridMap map, int x, int y)
        {
            if (!map.InBounds(x, y)) return false;
            if (map.IsWall(x, y)) return false;

            // Ansoihin ja ovien alle saa mennä
            return true;
        }
    }