Introduction

The following page contains modding guidelines for the new update of the game.

To better understand changes in units it is recommended to check Units documentation page.

Recommendations

When basing your model on the original ones, add to your mod also ALL original /automat/ files used by it. The names of the files are generated as CityHash64 hash of theirs content so whenever we change the parameters of the material in any way, a different file will be used to store them and the original file might cease to exist if there is no other model utilizing the original parameters.
When modifying original models, always include ALL components of the model (pmg+pmd) instead of just those you changed. Otherwise you risk crash if we change the model.
As always when adding new objects to files which support multi-file approach (e.g. road_look.sii) it is HIGHLY RECOMMENDED to use suffix or prefix in the name to avoid conflicts with new objects we are adding in patches. Otherwise you might have to use the batch renaming functionality (see Batch renaming) to fix the conflicts when new patch appears.

How to convert map

Ensure that ALL map files are updated to version compatible with 1.30 update by resaving them in 1.30 version. Otherwise you will be unable to load the map in 1.31 editor.
Load map
If the editor shows a warning dialog about items referencing obsolete TERRAIN ONLY road flag, you MUST remove or replace all those items in the map before saving the map. Otherwise the editor might crash when loading the resaved map.
Run prefab node corrections (F3 - "Prefab node correction")
Save map
Do rebuild (F8)
Save map
Run shoulder check from "Map\Validate road shoulders" This will generate list of all items which could cause issues with random events (mostly models clipping through). You have following options:
- Adjust the items so they do not cause issues by moving them or removing them
- Mark the related road as having blocked shoulder ("Shoulder blocked" checkboxes in Road item properties) to prevent generation of events.
- If you do not care about the issues, you can ignore the item.
Save map

Changes

Map format changes

Game data

Added blinker_auto_off_trigger attribute defining angle below which blinker auto disable is performed previously.

Economy data

Added cargo_damage_cost attribute defining how much money player has to pay to for 1% of the damage.
Added cargo_damage_cost_factor attribute defining factor damage penalty is multiplied with every 1% of the damage.
Added exp_park_load_bonus attribute defining how big XP bonus player gets for parking trailer during loading of the job.
Added revenue_per_km_base attribute defining base revenue per km for the ai drivers.
Added revenue_coef_per_km attribute defining salary coefficient per km for the freight market and online jobs.
Added cargo_market_revenue_coef_per_km attribute defining salary coefficient per km for the cargo market jobs.
Added driver_revenue_coef_per_km attribute defining salary coefficient for ai drivers and players quick jobs.
Added driver_cargo_market_revenue_coef_per_km attribute defining salary coefficient for ai drivers cargo market jobs.
Removed revenue_per_km.
Removed driver_revenue_per_km.
Removed brands, game will now collect truck and trailer brands on startup from /def/vehicle/truck_dealer and /def/vehicle/trailer_dealer directories. Each directory inside that can be interpret as token is a new brand.

Country data

Country data has a new attribute called mass_limit_per_axle_count. It defines GVW (gross vehicle weight) - maximum allowed mass limit in KG of the whole vehicle set (truck + trailer(s) + cargo) with the given amount of axles (total truck + trailer(s)) in the every country. Empty array impose no limit.

The first element is describing mass limit for vehicle with 2 axles, second for 3 axles etc. If vehicle has more axles than defined last entry will be used as limit.

country_data: country.data.uk
{
	# [...]

	mass_limit_per_axle_count[]: 18000	# 2-axle vehicle
	mass_limit_per_axle_count[]: 26000      # 3-axle vehicle
	mass_limit_per_axle_count[]: 38000      # 4-axle vehicle
	mass_limit_per_axle_count[]: 40000      # 5-axle vehicle
	mass_limit_per_axle_count[]: 44000      # 6 and more-axle vehicle
}

Cargo generator

The whole cargo generator was dramatically changed since previous versions.

Main changes:

More importantly cargo is now being defined by units instead of weight.
Another new concept are body types, new trailers are being matched with the compatible cargo by body types. Trailer that has body type flatbed will have only generated jobs that consists of cargo that is compatible with flatbed body.

Cargo data

Attributes price_coef, mass (array, per trailer from list) and cog_height_offset (array, per trailer) was removed. Attribute array trailers remain only for compatibility reasons of some cargoes.

Instead of explicit trailer list, trailers are linked through body_types (array or tokens). Mass and price are now defined by system of units. Unit of cargo has mass (float), volume (float) and unit_reward_per_km (float), unit_load_time (float). Mass and volume limits how many units of cargo could be loaded on given trailer, rest is loading time and reward. Attribute overweight (bool) uses cargo as is and ignores any trailer or country limitations.

Trailer def

Structure trailer_def was greatly improved and redesigned as its core of the economy. Old system with list of trailers for given cargo is used for rest of old trailers only (using cargo folder placement with filled trailer link and fake underscored trailer body_types).

New fields support system that matches cargoes to trailer only through trailer body types with additional information. Most important are:

gross_trailer_weight_limit (float, technical or logical limit of trailer+cargo mass)
body_type (token)
country_validity (token array).

Then there are cached/precomputed values for fast access without necessity of loading all accessories (instead of summing all chassis and body weights in chain) as well as data for trailers that do not have all accessories defined (eg freight market ones):

trailer_mass (float)
body_mass (float)
volume (float)
axles (int)
length (float)
chain_type (token)

In addition, there are also cog placement parameters - unlike older mechanics right now its plain cargo cog offset in meters (before height was halved due to historical reasons).

Body types

flatbed
curtainsider
dryvan
insulated
refrigerated

Vehicles data

New cables accessory data

Accessory head lights data

The algorithms for sign illuminations have been changed, from now on the illumination of signs is calculated based on the color and the range of the regular truck lights. The following attributes were made obsolete and are no longer used:

low_beam_sign_color
low_beam_sign_range
hi_beam_sign_color
hi_beam_sign_range
front_beam_sign_color
front_beam_sign_range
roof_beam_aspect
roof_beam_sign_color
roof_beam_sign_range
front_roof_beam_sign_color
front_roof_beam_sign_range

Trailer data

Accessory trailer data

The new unit describing series of the trailer. Very similar to well known accessory_truck_data.

The attributes of the unit are:

[string] info[0] - (optional) brand name, if empty string is passed no brand is displayed.
[string] info[1] - (optional) trailer series name.
[string array] fallback - (optional) list of fallback accessories following format type|path
other regular rules and requirements for given vehicle

Accessory trailer body data

New accessory type defining trailer body.

Required attributes are:

[float] volume - The volume of the body in m3. Limits amount of cargo units that can be loaded in.
[token] body_type - The type of the body. Only cargoes with given body_type can be loaded.
[float] mass - The mass of the empty body in kg.
[float3] total_size - The total size of the trailer in meters (currently unused).
[float3] size - The internal size of the trailer body in meters, shown in tooltip.

Optional attributes are:

[string] detail_model - The detailed model of the body.
[string] model - The default model of the body.
[string array] lods - The LOD models.
[string] collision - The collision of the body.
[token] variant - The variant of the model to use.
[token] look - The look of the model to use.

Trailer dealer data

Trailer dealer offer is defined by exactly same way as truck dealer offer. In folder /def/vehicle/trailer_dealer/ are folders for every trailer brand and in them are complete definitions (sii unit).

Games/ETS2/Modding guides/1.32

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