(Solved) How does Space Age calculate the rocket capacity of items that don't have weights in the lua file?

[Plantagen]

I am trying to do some calculations on rocket capacity and looking into the data files, specifically these

https://github.com/wube/factorio-data/b ... s/item.lua

https://github.com/wube/factorio-data/b ... s/item.lua


A lot of the items have weights that correspond to their rocket capacity. For example, Iron ore has a weight of `2 * kg` and the rocket capacity is 500 for iron ore, so this makes sense.

But some other items do not have a weight in the Lua file. stone-brick does not. iron-plate doesn't either. The rocket capacity of iron-plate is 1000 while stone-brick is 500, so they can't have some default value for all items missing a weight.

Does anyone know where in the data files this is specified? I searched the repo for "stone-brick" and could not find a weight defined near any of the matches.


Update: I found this description. Is it valid? Seems a bit complex for what I'm trying to do.

https://lua-api.factorio.com/latest/aux ... eight.html

Update 2: Is it possible to run an in-game script to just print out the rocket capacity of each items? That would solve my problem too.

[Plantagen]

With some help from Google, I now have this script that I can run in the game console and it prints a file with weight and rocket capacity for items. I could not find any errors for those items I remember the actual in-game capacity, so I think it is correct.

Code: Select all

/c local output = "Item Name,Weight (kg),Rocket Capacity\n" for name, item in pairs(prototypes.item) do if item.weight and item.weight > 0 then local weight_kg = item.weight / 1000 local cap = math.floor(1000 / weight_kg) output = output .. string.format('"%s",%.3f,"%s"\n', name, weight_kg, cap) end end helpers.write_file("rocket_weights.csv", output) game.print("Data successfully written to script-output/rocket_weights.csv")

This gives me the data I need for my calculations. I don't need to know how they are calculated (as originally asked in the topic).


Update:

With some more Google help, I got a script that exports the recipes as json too

Code: Select all

/c local list = {} for _, r in pairs(game.player.force.recipes) do table.insert(list, {name = r.name, categories = r.prototype.categories, energy = r.energy, ingredients = r.ingredients, products = r.products}) end helpers.write_file("recipes.json", helpers.table_to_json(list))