/// <summary>
/// Tests if a tile can successfully be removed.
/// </summary>
public Exception CanRemoveTile(ITile tile, double authority = 0)
{
if (!tile.IsPlaced)
return new InvalidOperationException("Cannot remove an unplaced tile.");
Rule<TileMovementArguments> rule;
var args = new TileMovementArguments {Space = tile.Space, Tile = tile};
return !TileRemovalRules.CheckAction(args, authority, out rule) ? rule.GetException() : null;
}
/// <summary>
/// Tests if a tile can successfully be placed.
/// </summary>
public Exception CanPlaceTile(ITile tile, ISpace space, double authority = 0)
{
if (tile != null && tile.IsPlaced)
return new InvalidOperationException("Cannot place an already placed tile.");
if (space.Tile != null)
return new InvalidOperationException("Cannot place a tile in an already occupied space.");
Rule<TileMovementArguments> rule;
var args = new TileMovementArguments {Space = space, Tile = tile};
//ternary is a pain in the ass to debug!!!
//return !TilePlacementRules.CheckAction(args, authority, out rule) ? rule.GetException(args) : null;
return !TilePlacementRules.CheckAction(args, authority, out rule) ? rule.GetException() : null;
}