There's some changes coming to ModAPI (and PB API) that would have made this a lot easier. Instead of parsing DetailedInfo, I gave PB access to the dictionary of remaining blocks. This includes the MyDefinitionBase and count of those block types. I actually had exactly this purpose in mind when I wrote that bit :P

Soon(tm): ```namespace Sandbox.ModAPI.Ingame { public interface IMyProjector : IMyFunctionalBlock { [Obsolete( "Use ProjectionOffset vector instead." )] int ProjectionOffsetX { get; }

    [Obsolete( "Use ProjectionOffset vector instead." )]
    int ProjectionOffsetY { get; }

    [Obsolete( "Use ProjectionOffset vector instead." )]
    int ProjectionOffsetZ { get; }

    [Obsolete( "Use ProjectionRotation vector instead." )]
    int ProjectionRotX { get; }

    [Obsolete( "Use ProjectionRotation vector instead." )]
    int ProjectionRotY { get; }

    [Obsolete( "Use ProjectionRotation vector instead." )]
    int ProjectionRotZ { get; }

    /// <summary>
    /// Checks if there is an active projection
    /// </summary>
    bool IsProjecting { get; }

    /// <summary>
    /// Total number of blocks in the projection
    /// </summary>
    int TotalBlocks { get; }

    /// <summary>
    /// Number of blocks left to be welded
    /// </summary>
    int RemainingBlocks { get; }

    /// <summary>
    /// A comprehensive list of blocks left to be welded
    /// </summary>
    Dictionary<MyDefinitionBase, int> RemainingBlocksPerType { get; }

    /// <summary>
    /// Number of armor blocks left to be welded
    /// </summary>
    int RemainingArmorBlocks { get; }

    /// <summary>
    /// Count of blocks which can be welded now
    /// </summary>
    int BuildableBlocksCount { get; }

    Vector3I ProjectionOffset { get; set; }

    /// <summary>
    /// These values are not in degrees. 1 = 90 degrees, 2 = 180 degrees
    /// </summary>
    Vector3I ProjectionRotation { get; set; }

    /// <summary>
    /// Call this after setting ProjectionOffset and ProjectionRotation to update the projection
    /// </summary>
    void UpdateOffsetAndRotation();

    bool LoadRandomBlueprint( string searchPattern );
    bool LoadBlueprint( string name );
}

}```