Add LuaGameScript::take_map_screenshot

[bencvt]

Factorio's map view provides an excellent overview of the game world, but there is no API to take screenshots of it.

This suggestion is to add LuaGameScript::take_map_screenshot (or take_chart_screenshot or take_remote_view_screenshot).

Its parameters could somewhat match the existing LuaGameScript::take_screenshot. Additional parameters (all boolean):

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logistic_networks
electric_networks
turret_coverage
pollution
train_stop_names
player_names
tags
worker_robots
rail_signal_states
recipe_icons
show_pipelines

Irrelevant parameters:

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show_entity_info
hide_clouds
hide_fog
daytime
water_tick

Related threads from many years ago:

• [0.15.3] Screenshot command won't take picture of map
• Allow taking map screenshot

[Osmo]

There is a more bare-bones version of this in form of https://lua-api.factorio.com/latest/cla ... hunk_chart

[bencvt]

Thanks. It's good to know that at least some of the pixel data is available.

However, LuaForce::get_chunk_chart cannot render tags, pipelines, coverage areas, etc. Re-implementing all that rendering code is possible, but it would be a lot of work to mimic the game's behavior.

testing

I played around with the API to confirm the above:

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/c helpers.write_file('rgb565.raw', game.player.force.get_chunk_chart('nauvis', {0,0}))

online tool to view: https://rinechran.github.io/raw_pixels_viewer/