Content Configuration
- For a new-user walk-through explaining how to create various types of content, see the HowToGuides page instead.
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Overview of Trainz Content
This page acts as reference manual for all Trainz content, and it's legal data types (KINDs) and data structures (generally, Containers). It is intended to provide accurate and concise description of the capabilities and configuration of Trainz current-version content. To the new user, particularly those with no familiarity with programming language practices, the information in this page can become a starting point to understanding. Every Trainz asset from the mighty collection of assets contained in a route to the lowliest scenery item such as imitation grass, the color of a rock or field—all have two things in common: The list of common legal tag names which begin the definition of the asset found in the TrainzBaseSpec, and the container which lists and defines them, the initialization file type known as config.txt.
All configuration files are not created equal for they also hold data fields which define which type of asset they are intended to weld together from disparate parts, and depending upon the need (a flower, for all it's beauty and lovely fragrance has no where near the animative complexity of a diesel locomotive and a steam loco is more complicated still). The solution for Trainz software writers was a common self-descriptive and self-defining data structure that was because of the self-definition property, a common starting point for parsing a content creators meaning and translating it into the binary representation needed by the Auran JET graphics engine.
Auran and later N3V Games installed content differs in kind from downloaded or other types of add on content. The installed assets are located in the software's CAB files, binary compressed data cabinet files which in Trainz have the .ja extension. Whereas the imported cdp files and other third party or self-developed content reside in directories in the .../local folder (directories) and sub-folders, as do the asset config.txt files any user needs to contend with directly.
Structure of a Trainz Asset
Each item of Trainz content ("an asset") is created as the contents of a single operating system folder, containing a config.txt file and some number of supporting files and/or folders and their files. Files located in the content folder must obey the Filename character restrictions and each item should be directly relevant to the asset in question. When committed or as in newer Trainz releases, tested for validation before commitment, the asset's folder contents and the config.txt file will be validated against one another, the ideal minimum definitions will be bounced against those and each must be in balance and correct with respect to one another. Older Pre-TS2009 versions were comparatively lacking in this error-checking-in-advance process, and the legacy errors one sometimes still sees when downloading older content from the DLS is directly attributable to this earlier leniency. Sometimes Trainz would crash in run time modes because of such errors, so today, today's Trainz are more restrictive to avoid those run-time un-ohs!
Content Types
Each asset built for the Trainz environment follows a preset template, which defines what tags can be included in the config.txt file, what capabilities the asset will have, and how the user can manipulate the asset in-game. The following types of custom content are supported by Trainz:
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Category Tags
Category tags were added to Trainz content and the TrainzBaseSpec per user suggestion around the time of TRS2004 and are an aid to sorting and selecting appropriate content that would be found in a time or place, or of narrowing down a particular sort of asset (Category Class codes), mainly in filters and when running Content Manager.
- Category Class - For Category search.
- Category Region - For Region search
- Category Era - For Era Search
Feedback
Content Configuration Feature Requests - ask here for new config.txt files features
Categories
Categories are the sometimes overlooked superhighways of getting around in a Wiki project, and the user will find these listed are index pages to finding things faintly remembered efficiently and effectively:
See also
The following category pages will list and index Trainz specific articles throughout this Wiki
