View source for Games/ETS2/Modding guides/1.35

= 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 [[Documentation/Engine/Units|Units documentation]] page.

= Recommendations =
* When basing your model on the original ones, add to your mod also <strong>ALL</strong> 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 <strong>ALL</strong> 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 <strong>HIGHLY RECOMMENDED</strong> 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 =

* If your mod adds Estonia, Latvia, Lithuania, Russia or Finland update your country, ferry, semaphore model and semaphore profile definitions to avoid conflicts.
* Load map
* Do rebuild (F8)
* Save map
* Select correct looks for models where the selection of the looks changed

= Changes & New Features =

== Curve items ==

TBA, map

== Mover/walker unification and improvement ==

Approach to movers and similar object has been completely reworked.

For details see [[Documentation/Engine/Mover_model_group|Mover documentation]].

== AI changes ==

TBA

== Dynamic lods ==

use dynamic_lod_desc[] instead of lod_desc

TBA

== Modded trucks support ==

TBA (in game function)

== COG data in '''accessory_chassis_data''' ==

Center of gravity (COG) data has been moved from trailer definition to [[Documentation/Engine/Units/accessory_chassis_data|chassis data]]. They are easier to edit, they have less count than trailer definitions and on given chassis cargo is typically loaded in same way.

Value logic itself work as before: '''cog_cargo_mass_min''' (float, default 0) and '''cog_cargo_mass_max''' (float, default 20000) sets border limits and '''cog_cargo_offset_min''' (float3, default (0,0,0)) and '''cog_cargo_offset_max''' (float3, default (0,1,0)) set values for interpolation.

In addition, default COG is now in center of model based on some trailer geometry analysis regardless of trailer model scene origin. So the longitudinal offset used as workaround should be discarded.

== Cabin suspension ==

4 point simulation (locator, obsolete/new values in physics.sii)
TBA

== Wheel offsets ?? ==

??

== Wipers duration+delay format ==

In unit '''accessory_interior_data''' attribute '''wiper_delay''' has been removed. Instead, the new attribute '''wiper_duration_and_delay''' (array of float2) has been added. Each element contains animation length (in seconds) and time delay between animation loops (in seconds) of one active state.

If no '''wiper_duration_and_delay''' is correctly stated it is defaulted to single element float2(2.0, 0.0), which serves as single active state in such case.

== Trailer braces sound ==

Default value is now set empty. So there is sound only if data explicitly state it.

== Cargo model randomized ==

If there are stated more than one model of cargo visualization (see '''data_path''' array in '''cargo_model_match''' unit, stored in '''def/cargo/*/''' folders of cargoes for owned trailers) for given trailer, the one used is chosen pseudo-randomly from them.

== Timezone sub-areas ==

Data for time zone sub-areas has been introduced silently in 1.34 update (look for Malheur county, Oregon in ATS or Kaliningrad area, Russia in ETS).

One set of data is in '''city_data''' units and data is used for static city-based zone usage (eg. delivery times in game economy):
* '''time_zone''' (integer, default is undefined value, represented by week of time, 10080) - time zone of given city in minutes
* '''time_zone_name''' (string, default empty) - name of eventual time zone
If city time zone is undefined (or 10080) then there is used time zone of country the city belongs to.

Second set of additional data consists of three synchronized arrays (same length expected) stored in '''country_data''' units and is used for spatial detection of time zone on map:
* '''secondary_time_zone_area''' (float4 array) - elements of rectangle areas in editor coordinates
* '''secondary_time_zone''' (integer array) - time delta of given area in minutes
* '''secondary_time_zone_name''' (string array) - name of time zone in given area
If point is in given country (decided by map logic by road/prefabs & borders) then all existing rectangle elements are checked for different time zone than country has. First matching area element defines the proper time zone. If no area is found, country time zone is used instead.

== Transmission mode names ==

Unit '''accessory_transmission_data''' has two new string attributes - '''auto_mode_name''' (default "A") and '''manual_mode_name''' (default "M"). Their value is used in dashboard computer display as transmission mode element (id 1310) if truck display contains one.