NML:Industries

Industry properties

Industry properties. Default industry type numbers can be found at default industries.

property	value range	comment
substitute	industry type	Number of the original industry type that replaces this one, should it not be available for some reason (e.g. missing NewGRF). This property must be set first, before any other properties or graphics. All properties of the old type are copied to your new industry.
override	industry type	Number of the original industry type overridden. This will cause other grfs / industries to consider your industry type the same as the old type. Only set this property if your type is (more or less) the same as the old type.
layouts	Array of tilelayouts	See Tilelayout syntax.
life_type	One of IND_LIFE_TYPE_XXX, XXX = BLACK_HOLE | EXTRACTIVE | ORGANIC | PROCESSING	The generic type of industry. This determines the production changes that occur by default (when not using the callback). Examples are respectively power plants, coal mines, forests en steel mills.
closure_msg	string	Message displayed when the industry announces closure. Use a custom string or one of the default TTD strings.
prod_increase_msg	string	Message displayed when industry increases production. Use a custom string or one of the default TTD strings.
prod_decrease_msg	string	Message displayed when industry decreases production. Use a custom string or one of the default TTD strings.
fund_cost_multiplier	0..255	Fund cost multiplier. Note that in OpenTTD the unmodified base cost is 8x higher for building (not prospecting) raw (=extractive / organic, see life_type) industries.
cargo_types	array of up to 16 accept_cargo("ACME") and up to 16 produce_cargo("ACME", 0)	NML 0.5 1.9 Types of cargo (1) accepted, using a label from the cargotable (2) produced, using a label from the cargo table, and an amount which will be produced 8 or 9 times per month.
prod_cargo_types	array of up to 2 ints	NML 0.4Types of cargo produced. Use the cargotype(<label>) built-in function to specify a label from the cargotable.	NML 0.5Removed, use cargo_types instead.
accept_cargo_types	array of up to 3 ints	NML 0.4Types of cargo accepted. Use the cargotype(<label>) built-in function to specify a label from the cargotable	NML 0.5Removed, use cargo_types instead.
prod_multiplier	array of up to 2 ints (0..255)	NML 0.4Amount of each output cargo to produce every 256 ticks (8 or 9 times a month)	NML 0.5Removed, use cargo_types instead.
min_cargo_distr	0..255	Minimal amount of cargo before transporting to stations.
random_sound_effects	array of ints	Sound effect numbers that are played some times.
conflicting_ind_types	array of up to 3x industry_type(IND_TYPE_OLD | IND_TYPE_NEW, id)	Three industry types that should not be nearby. Use the builtin function industry_type(..) to define either an old industry (using the global ID) or a new industry from your grf (using the grf-local ID).
prob_random	0..255	(up to NML v5796-418, use prob_map_gen otherwise) Probability of occurring while generating initial industries. If the random game probability value is nonzero and IND_FLAG_DO_NOT_FORCE_INSTANCE_AT_MAP_GENERATION is not set, at least one instance of this type is guaranteed to appear on the map.
prob_map_gen	0..255	(NML v5796-418 or newer) Probability of occurring while generating initial industries. If the random game probability value is nonzero and IND_FLAG_DO_NOT_FORCE_INSTANCE_AT_MAP_GENERATION is not set, at least one instance of this type is guaranteed to appear on the map.
prob_in_game	0..255	Probability of occurring while creating industries during the game.
map_colour	0..255	Colour index from the DOS palette to use on the minimap for this industry.
spec_flags	bitmask(flags)	for flag values see Industry special flags
new_ind_msg	string	Message displayed when industry gets built during game play.
input_multiplier_1	array of up to 2 floats (0..255)	NML 0.4 Output cargo multiplication factors for getting a unit of the first accepted cargo.	NML 0.5Removed, use cargo_types instead.
input_multiplier_2	array of up to 2 floats (0..255)	NML 0.4 Output cargo multiplication factors for getting a unit of the second accepted cargo.	NML 0.5Removed, use cargo_types instead.
input_multiplier_3	array of up to 2 floats (0..255)	NML 0.4 Output cargo multiplication factors for getting a unit of the third accepted cargo.	NML 0.5Removed, use cargo_types instead.
name	string	Name of the industry, use a custom string or one of the default TTD strings.
prospect_chance	0 .. 1 (float)	Chance of successful prospecting.
callback_flags	bitmask(flags)	Do not set this, unless you use old-style callbacks.
remove_cost_multiplier	int	Cost multiplier for removing the industry (currently only possible with magic bulldozer).
nearby_station_name	string	Default additional name for a nearby station

Industry special flags

flag	meaning
IND_FLAG_PLANT_FIELDS_PERIODICALLY	The industry periodically plants fields around itself (temperate and arctic farms)
IND_FLAG_CUT_TREES	The industry cuts trees around itself and produces its first output cargo from them (lumber mill)
IND_FLAG_BUILT_ON_WATER	The industry is built on water (oil rig)
IND_FLAG_ONLY_IN_LARGE_TOWNS	The industry can only be built in towns (i.e. it has to replace houses) with population larger than 1200 (temperate bank)
IND_FLAG_ONLY_IN_TOWNS	The industry can only be built in towns (i.e. it has to replace houses) (arctic and tropic banks, water tower)
IND_FLAG_BUILT_NEAR_TOWN	The industry is always built near towns (i.e. near town sign; additionally the industry is allowed to replace houses) (toy shop)
IND_FLAG_PLANT_FIELDS_WHEN_BUILT	Fields are planted around the industry when it's built (all farms)
IND_FLAG_NO_PRODUCTION_INCREASE	The industry cannot increase its production on the temperate climate (oil wells)
IND_FLAG_BUILT_ONLY_BEFORE_1950	The industry is built only before 1950 (oil wells)
IND_FLAG_BUILT_ONLY_AFTER_1960	The industry is built only after 1960 (oil rig)
IND_FLAG_AI_CREATES_AIR_AND_SHIP_ROUTES	AI players will attempt to establish air and ship routes going to this industry (oil rig)
IND_FLAG_MILITARY_AIRPLANE_CAN_EXPLODE	The industry can be exploded by a military airplane (oil refinery)
IND_FLAG_MILITARY_HELICOPTER_CAN_EXPLODE	The industry can be exploded by a military helicopter (factory)
IND_FLAG_CAN_CAUSE_SUBSIDENCE	The industry can cause a subsidence (coal mine)
IND_FLAG_AUTOMATIC_PRODUCTION_MULTIPLIER	Automatic production multiplier handing (No industry has this bit set by default.).
IND_FLAG_RANDOM_BITS_IN_PRODUCTION_CALLBACK	The production callback needs random bits in var. 10 (No industry has this bit set by default.)
IND_FLAG_DO_NOT_FORCE_INSTANCE_AT_MAP_GENERATION	Do not force one instance of this type to appear during initial map generation (No industry has this bit set by default.)
IND_FLAG_ALLOW_CLOSING_LAST_INSTANCE	Allow closing down the last instance of this type (No industry has this bit set by default.)

Common variables

The following variables are available to both industries and industry tiles. All of them require an x, y offset. For industries, this offset is unsigned and relative to the northernmost tile. For industry tiles, it is signed and relative to the current tile.

name	value range	comment
nearby_tile_slope	SLOPE_XXX	See tile slopes for an overview of possible values
nearby_tile_is_water	1 if the tile is water, 0 otherwise
nearby_tile_terrain_type	TILETYPE_XX	TILETYPE_NORMAL, TILETYPE_DESERT, TILETYPE_RAIN_FOREST, TILETYPE_SNOW
nearby_tile_water_class	WATER_CLASS_XXX	XXX = [NONE | SEA | CANAL | RIVER] Note that tiles for which nearby_tile_is_water is 0 may still have a water class, e.g. industry tiles with water beneath them.
nearby_tile_height	0..120	The height of the lowest corner of the given tile.
nearby_tile_class	Tile class
nearby_tile_animation_frame	0..255	Animation frame of the given tile
nearby_tile_industrytile_id	0x00aa, 0xFFbb, 0xFFFE or 0xFFFF	0x00aa: The tile is an industry tile defined in this GRF with tile id aa. 0xFFbb: The tile is an original industry tile with id bb. 0xFFFE: The tile is an industry tile defined in another GRF. 0xFFFF: The tile is not an industry tile or it belongs to another industry.