NML:Block syntax
Vehicles, Stations, Canals, Bridges, Towns, Houses, Industries (Tiles), Cargos, Airports+Tiles, Objects, Railtypes, Roadtypes, Tramtypes, Terrain
Syntax
In the next sections you'll often see a word enclosed by the less-than and greater-than symbols. These words should not be written literally, instead they reference to another block/item you should put there. The following words will be used:
- <literal-string>
- A string enclosed by quotes, for example
"this is a literal string" - <string>
- A string defined in the language file, for example
string(STR_GRF_NAME) - <expression>
- An expression, this can be a computation or single value constructed using <number>, <float>, <parameter>, <variable>, <function-call>
- <ID>
- The name of an item or block. IDs should start with a letter or underscore. The rest of the ID may consist of letters, underscores and numbers.
If something is enclosed by square brackets [] it's optional.
Railtypetable / Roadtypetable / Tramtypetable
Overriding vehicles in other NewGRFs
Sorting vehicles in the purchase list
Features
NewGRFs can be used to modify various types of items. Examples include trains, stations and industries. Such a type of item is called a feature. The following table contains a list of features and their identifiers. These identifiers may be used to refer to the feature when needed.
| Name | Description |
|---|---|
| FEAT_TRAINS | Trains |
| FEAT_ROADVEHS | Road vehicles |
| FEAT_SHIPS | Ships |
| FEAT_AIRCRAFT | Aircraft |
| FEAT_STATIONS | Train stations |
| FEAT_CANALS | Canals |
| FEAT_BRIDGES | Bridges |
| FEAT_HOUSES | Town houses |
| FEAT_GLOBALVARS | Various global variables |
| FEAT_INDUSTRYTILES | Industry tiles (visible part of industries) |
| FEAT_INDUSTRIES | Industries |
| FEAT_CARGOS | Cargo types |
| FEAT_SOUNDEFFECTS | Sound effects |
| FEAT_AIRPORTS | Airports |
| FEAT_SIGNALS | Train signals |
| FEAT_OBJECTS | Non-interactive objects (example: lighthouse) |
| FEAT_RAILTYPES | Rail types |
| FEAT_ROADTYPES | Road types |
| FEAT_TRAMTYPES | Tram types |
| FEAT_AIRPORTTILES | Airport tiles (visible part of airports) |
