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This mod allows you to make technologies upgrade a machine like with module effects. It works by secretly making invisible beacons on every single entity of a given type automatically.

Look at test-suite.lua to see actual working usage.

How to Use

For convenience, data can be passed in using a type called MUpgradeData. Input something like this in data stage:

local my_upgrade_data = {
    {
        handler = "Assembler-speed-boosting",
        technology_name = "steel-processing",
        modifier_icon = {icon="__base__/graphics/icons/electric-furnace.png"},
        entity_names = {"electric-furnace", "oil-refinery"},
        module_effects = {speed = 0.3, pollution = -0.1},
        effect_name = nil, --would make an effect that says "Electric Furnace: +30% Speed”…
    },
    {
        handler = "Actually_uses_assemblers",
        technology_name = "steam-power",
        modifier_icon = {icon="__base__/graphics/icons/chemical-plant.png"},
        entity_names = {"assembling-machine-2"},
        module_effects = {productivity = -0.1, consumption = -0.1, quality = 0.2},
        effect_name = "My custom string", --would make an effect that says "My custom string: -10% Productivity
    }
}

local mupgrades = require("__machine-upgrades__.lib.technology-maker")
mupgrades.handle_modifier_data(my_upgrade_data)

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Manual usage

Not recommended. If you want full manual control, the most important functions in this mod are:

• `mupgrade_lib.make_modifier` : Use this in data stage to create the desired effect in a technology.
• `mupgrade_lib.add_id_flag` : Use this to safely add the get-by-unit-number flag to an entity.
• `remote.call("machine-upgrades-techlink", "add_technology_effect", technology_name, entity_name, effect, entity_handler)`: Use this in control stage in an event callback to tie a specific entity prototype and effect to the technology's research progress.

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Note that entity_handler should be matched to the same entity_name(s) to save on UPS.

Thanks: plexpt for the Big Data String 2 mod, used in packing data for more convenience.