[Jetpack] all remaining energy in the inventory and remote interfaces

[yalov]

1. Hi, I am trying to get all remaining energy in the inventory, could you make it remote interface if you already calculate it in the mod?

2. .get_fuels() has unknown (mods' ?) fuels, and therefore this:

   local fuels = remote.call("jetpack", "get_fuels")
   local maininventory = player.get_inventory(defines.inventory.character_main)
   local m = ""
   for i, fuel in pairs(fuels) do
    -- m = m .. " " .. fuel.fuel_name .. " " .. maininventory.get_item_count(fuel.fuel_name)
   end

   has

   Error: Unknown item name: rocket-booster

3. get_current_fuels() gives me only one item in array, is it expected? How is it different from the get_current_fuel_for_character() ?

[Wiwiweb]

1. I don't think we do, we just get the info on the spot every fuel load from Factorio.
2. Yes, we don't verify that all fuel items exist. You can do it with if game.item_prototypes[fuel_name] then ...
3. get_current_fuels gives the current fuels for all characters, get_current_fuel_for_character is only for 1 character (which is more performant if you only care about that one character)