Factorio Forums

Posted: **Sun Jan 15, 2017 4:04 am**

Could someone run up a simple mod that transfers train attributes into the mod? I want to be able to tweak the attributes of trains without changing the base game. Mostly I want to change weight, speed, power consumption rate, hit points, resistances, and production costs.

Thanks in advance!

edit: I have received information and have made the mod. Link to mod page: https://mods.factorio.com/mods/thereave ... /TrainEdit

Posted: **Sun Jan 15, 2017 9:28 am**

thereaverofdarkness wrote: I want to be able to tweak the attributes of trains without changing the base game.

Not possible, Everything you want to change is only changeable by changing (or creating new copies of) prototypes in the data stage. Which means your game changes. Which means a full restart every time you want to change the value

Posted: **Mon Jan 16, 2017 12:30 am**

Nexela wrote:Everything you want to change is only changeable by changing (or creating new copies of) prototypes in the data stage. Which means your game changes. Which means a full restart every time you want to change the value

What I meant was I want the values to change, but I don't want to directly edit my copy of Factorio.

Posted: **Mon Jan 16, 2017 12:54 am**

Not sure what you are trying to ask for.

You would need a mod. and for any changes to take affect you would have to restart the game every time.

Posted: **Mon Jan 16, 2017 1:27 am**

Just create these two files in a folder named "TrainEdit_0.0.1 and put that into mods folder.

info.json

data.lua

Posted: **Mon Jan 16, 2017 1:33 am**

Adil wrote:

info.json

Have you tested this? I'm pretty sure a factorio_version line is mandatory since 0.13.

EDIT: It is. You'll have to add the following line somewhere in that file:

Code: Select all

  "factorio_version" : "0.14",

Posted: **Tue Jan 17, 2017 4:36 am**

Adil wrote:Just create these two files in a folder named "TrainEdit_0.0.1 and put that into mods folder.

But how does that help me edit the train stats? It doesn't contain the existing stats (though I could find those in the game files myself). More importantly, the lines are all contained within a comment. What code format do I use to actually write in each attribute I want to change?

Posted: **Tue Jan 17, 2017 5:21 pm**

thereaverofdarkness wrote:But how does that help me edit the train stats? It doesn't contain the existing stats (though I could find those in the game files myself). More importantly, the lines are all contained within a comment. What code format do I use to actually write in each attribute I want to change?

Use this data.lua, it is preseeded with vanilla values:

Code: Select all

local train=data.raw.locomotive['diesel-locomotive']
train.weight = 2000
train.max_speed = 1.2
train.max_power = "600kW"
train.reversing_power_modifier = 0.6
train.braking_force = 10
train.friction_force = 0.50
train.vertical_selection_shift = 0.5
train.air_resistance = 0.0075
train.connection_distance = 3
train.joint_distance = 4
train.energy_per_hit_point = 5

Posted: **Wed Jan 18, 2017 3:38 am**

Thanks! It seems to be working!

I'm trying to expand the mod by adding more attributes. I put in some code and tried to match the format but something isn't working and I'm not sure what. I think I got the hit points working fine but when I tried to add a section for the cargo wagon it stopped working. I'm not sure what to put in for the local line up top so that's probably where the error is.

Code: Select all

local train=data.raw.locomotive['diesel-locomotive']
local cargo=data.raw.cargo-wagon['cargo-wagon']
train.max_health = 1000
train.weight = 2000
train.max_speed = 1.2
train.max_power = "600kW"
train.reversing_power_modifier = 0.6
train.braking_force = 10
train.friction_force = 0.50
train.vertical_selection_shift = 0.5
train.air_resistance = 0.0075
train.connection_distance = 3
train.joint_distance = 4
train.energy_per_hit_point = 5
cargo.inventory_size = 40
cargo.max_health = 600
cargo.weight = 1000
cargo.max_speed = 1.5
cargo.braking_force = 3
cargo.friction_force = 0.50
cargo.air_resistance = 0.01
cargo.connection_distance = 3
cargo.joint_distance = 4
cargo.energy_per_hit_point = 5

When I load it up, it says it's trying to access 'wagon' which is a nil value. If I switch it to "local cargo=data.raw.locomotive" then it says it's trying to access 'cargo' which is a nil value.

Also, how would I put in lines for resistances? They are indented from the other attributes.

Posted: **Wed Jan 18, 2017 6:32 am**

It's stopped working because lua does recognize dashes (-) as a language construct in this case a minus sign. So your line says, "data.raw.cargo" (minus) "wagon['cargo-wagon']" which gives you an error.
However you can replace a 'field name' with a string in brackets, so the solution would be

Code: Select all

local cargo=data.raw['cargo-wagon']['cargo-wagon']

if you want to set resistances you can do this using the "resistances" field like this

Code: Select all

cargo.resistances = { -- this bracket opens a LIST of resistances
      {  -- this is a list element with resistance data
        type = "fire",
        decrease = 15,
        percent = 50
      },
      {
        type = "physical",
        decrease = 15,
        percent = 30
      },
      {
        type = "impact",
        decrease = 50,
        percent = 60
      },
      {
        type = "explosion",
        decrease = 15,
        percent = 30
      },
      {
        type = "acid",
        decrease = 10,
        percent = 20
      }
 }

Posted: **Wed Jan 18, 2017 8:31 am**

edit: never mind, I had an extra period in the code. It works now! Thanks everyone for all the help! I added in the recipe for crafting it so that the item costs can be changed. I noticed, however, that changing item costs for a recipe does not affect existing saves. Is there some way to change the existing save game's recipe cost?

Here's my mod page: https://mods.factorio.com/mods/thereave ... /TrainEdit

--------------------------------

dandielo wrote:
Code: Select all
local cargo=data.raw['cargo-wagon']['cargo-wagon']

Now it gives this error: "<name> expected near '['"

I figured in the line local train=data.raw.locomotive['diesel-locomotive'] the diesel-locomotive was connected to the name given in the entities file of the base mod, whereas its type was given by locomotive at the end of the data.raw.locomotive.

Posted: **Wed Jan 18, 2017 2:39 pm**

thereaverofdarkness wrote: Is there some way to change the existing save game's recipe cost?

If you change a technology/recipe without updating the version number of your mod you will need to run these commands

/c game.player.force.reset_recipes()
/c game.player.force.reset_technologies()

Posted: **Thu Jan 19, 2017 3:10 am**

Thanks, it worked! It said it'd disable my achievements if I reset it, but I saved the reset to a different save slot and the change affected my main game, so that seemed to work out well.

I tweaked the train stats for my game such that the train is far more massive and expensive, and burns through fuel much faster. It goes well with the Hard Storage mod, making trains able to carry large amounts of stuff if you're willing to pay the costs. I've also got Warehousing and I tweaked all of the inventory space values to match the same style of limited storage space. The large warehouses have a very comfortable amount of room inside, but they take up a lot of land and are costly to build. This actually has a very interesting effect on gameplay: rather than make the game more difficult, it seems to open up a lot of logistics options. The larger storage units can handle more inserters at once, so you can use them for increased throughput in your bins. Also, you can use a single large storage unit to make crafting simple: hook up assemblers on the sides with inserters pulling from the bin and putting back into it, and toss all of the raw materials into the bin. It's great for manufacturing a specific amount of a complex product.

Let me know if any of you are interested in my mods and settings.

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[REQUEST] [DONE] train stats editor

[REQUEST] [DONE] train stats editor

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