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From GRFSpecs
Sprite types
- Action0 - Defines new graphics feature properties
- Action0General - Action 0 properties common to all vehicle types
- Action0Trains - Action 0 properties for trains
- Action0RoadVehicles - Action 0 properties for road vehicles
- Action0Ships - Action 0 properties for ships
- Action0Planes - Action 0 properties for planes
- Action0Stations - Action 0 properties for new stations
- Action0Canals - Action 0 - Properties for canals / rivers
- Action0Bridges - Defining properties of bridges
- Action0Houses - Action 0 properties of houses
- Action0GlobalVariables - Action 0 properties for global variables
- Action0IndustryTiles - Action 0 properties for industry tiles
- Action0Industries - Action 0 properties for industries
- Action0Cargos - Action 0 properties for cargo types
- Action0SoundEffects - Action 0 properties for new sound effects
- Action0Objects - Action 0 properties for new objects
- Action0Railtypes - Action 0 properties for rail types
- Action0AirportTiles - Action 0 properties for airport tiles
- Action0Airports - Action 0 properties for airports
- Action2Vehicles - Defining set-IDs for vehicles
- Action2Stations - Defining station set-IDs
- Action2Canals - Defining an action2 for canals
- Action2HousesIndustryTiles - Defining an action 2 for houses, industry tiles and object
- Action2Industries - Defining the industry production callback
- Action2Cargos - Defining set-IDs for cargos
- Action2Objects - Action2 for Objects
- Action2Railtypes - Action2 for Railtypes
- VariationalAction2 - Variational Action 2
- VarAction2Advanced - Advanced features of Variational Action 2
- VarAction2Vehicles - Variational Action 2 Variables for Vehicles
- VarAction2Stations - Variational Action 2 Variables for Stations
- VarAction2Cities - Variational Action 2 Variables for Cities
- VarAction2Canals - Variational Action 2 Variables for Canals
- VarAction2Bridges - Variational Action 2 Variables for Bridges
- VarAction2Houses - Variational Action 2 Variables for Houses
- VarAction2IndustryTiles - Variational Action 2 Variables for Industry and Airport Tiles
- VarAction2Industries - Variational Action 2 Variables for Industries
- VarAction2Cargos - Variational Action 2 Variables for cargos
- VarAction2NewSignals - Variational Action 2 Variables for New Signals
- VarAction2Objects - Variational Action 2 Variables for Objects
- VarAction2Railtypes - Variational Action 2 for Railtypes
- VarAction2AirportTiles - Variational Action 2 Variables for Industry and Airport Tiles
- RandomAction2 - Randomized Action 2
- Callbacks - List of available callbacks
- Action3 - Associates vehicles with graphics set IDs
- Action3LiveryOverride - Change wagon livery to match the engine
- Action4 - Defines text strings
- Action5 - Defines specific base graphics sets
- Action6 - Modifies the contents of the following sprite
- Action7 - Conditionally skips sprites or jumps to a label
- GameConfigFlags - Configuration flags for Action 7/9 Variable 85
- Action8 - Defines GRF ID, Name and Description
- Action9 - (see action 7 above)
- ActionA - Modifies TTD base set sprites
- ActionB - Generates an error message
- ActionC - Does nothing.
- ActionD - Assigns parameters and calculates results
- ReadingOtherGRFParameters - Reading another GRF file's parameters
- ReadingGameSettings - Reading game configuration settings
- GRFResourceManagement - Preventing conflicts with limited resources
- ActionE - Deactivates a NewGRF file
- ActionF - Defines new town name styles
- Action10 - Defines GOTO label for action 7/9
- Action11 - Defines new sound data
- Action12 - Load font glyphs
- Action13 - Translates GRF-specific strings (TTDPatch only)
- Action14 - Static NewGRF Information (OpenTTD only)
- RealSprites - Sprites that actually get drawn on the screen
- RecolorSprites - Changing how other sprites are drawn
Graphics properties
- Palettes - Palettes used by the game
- Coordinates - Coordinates used for sprite alignement
TTD defaults
- DefaultHouseProps - Default property values for TTD's houses
- IndustryTileDefaultProps - Default property values for TTD's industry tiles
- IndustryDefaultProps - Default properties values for TTD's industries
- CargoDefaultProps - Default property values for TTD's cargo types
NewGRF commons
- Cargo classes - Commonly used cargo classes
- Cargo labels - Commonly used cargo labels
- Object classes - Commonly used object clases
- Railtype labels - Commonly used railtype labels
