At present there isn't a way via the API to check on the amount of fluid needed in a fluid-turret for it to activate. I wanted to do this as a check during an RCON command by Streamers to create and fill up fluid-turrets. To alert them if they were putting in less fluid than the turret required to a...

If you create a fire with the max initial_ground_flame_count of 255, the fire doesn't burn like the a high fire count should. This can be seen by creating a fire at 255 and at 254 (1 less). The 254 fire spreads out from the center for a bit and will catch any near by trees on fire. But the 255 value...

At present an orientated light doesn't align to a projectiles orientation, it stays facing north. data.raw["projectile"]["rocket"].light = { type = "oriented", picture = { filename = "__core__/graphics/light-cone.png", priority = "extra-high", flags ...

LuaSurface.create_entity for projectile has a few missing details: https://lua-api.factorio.com/latest/LuaSurface.html#LuaSurface.create_entity [list=1] [*]max_range is optional [*]the type "artillery-projectile" appears to have the same options/requirements as "projectile". Wit...

The LuaControl.mining_state lists the `position` field as optional, however, if you don't provide it for your player an on screen warning text appears stating that its needed, or the script causes an error. https://lua-api.factorio.com/latest/LuaControl.html#LuaControl.mining_state The warning text...

The descriptions for the alignments in rendering are not terribly clear. i.e. https://lua-api.factorio.com/latest/LuaRendering.html#LuaRendering.draw_text When you set something to "left" it doesn't appear to the left of the target, instead it's on the right of it. each.PNG From a casual u...

When running LuaSurface.request_path and a path_resolution_modifier value of 10 for a valid pathable route the game crashes. With a path_resolution_modifier value of 1 or 0 (default) it doesn't crash. Sample vanilla save that the below command breaks: pathfinder_crash.zip /c game.surfaces[1].request...

The recently added range_modifier, cooldown_modifier, consumption_modifier fields to AmmoType concept don't look to have been included in the documentation. Added in to 1.1.64 as part of this Modding Interface request: https://forums.factorio.com/viewtopic.php?f=65&t=103012 -> This was added so...

I noticed that the `follows_player` attribute set in the data stage for `combat-robot` prototype isn't readable during the runtime stage in the `LuaEntityPrototype` class. Data stage: https://wiki.factorio.com/Prototype/CombatRobot#follows_player Runtime class I'd hope/expect the field is added to: ...

At present the runtime AmmoType object doesn't expose some fields, this makes calculating via scripting the true runtime values of for a specific ammo in a weapon impossible, i.e. max range of a atomic-bomb ammo in a rocket-launcher, as atomic-rocket has a range_modifier of 1.5 https://wiki.factorio...

LuaSurface.get_tile() says it accepts either x and y of int values or a TilePosition object. However it seems to work fine if you pass it x and y double values or a MapPosition object. This difference appears more when using Sumneko for typing or that it implies to the modder they need to floor the...

LuaItemPrototype.get_ammo_type() says its only argument is a `string?`, but it doesn't say what its behaviour is if you don't provide it. I assume `default` as its first in the allowed values list? https://lua-api.factorio.com/latest/LuaItemPrototype.html#LuaItemPrototype.get_ammo_type -> "def...

It would be interesting to know how the responses differ between respondents who say they are a mod maker, vs a mod user. i.e. as a mod creator the Mod Detail Pages are very important to me as they limit how I can describe and demonstrate my mod. As a mod user I would likely not realise that it does...

A lot of the events are missing an explanation for when the `player_index` will be empty. As for some it relates to how a script raised the event and what options it passed in (which may not always be apparent). i.e. https://lua-api.factorio.com/latest/events.html#on_marked_for_deconstruction on the...

When you try to run a replay of a save made in an older version the below message is shown. The message lists the current version twice and not the version the replay was made in.
In this example as seen by the saves map version and Mods > base version.

Edit: Moved to right thread

The function LuaPlayer.remove_alert takes a table of fields, including one named "prototype". In the API docs its listed as type "LuaEntityPrototype?", however, if you provide an entity prototype object (LuaEntity.prototype) you get back the error message: 'prototype': string exp...

In the API Docs the function LuaInventory.set_filter has the param filter of type string . However I believe it should be string? based on its description for setting a nil value to clear the filter. Page: https://lua-api.factorio.com/latest/LuaInventory.html#LuaInventory.set_filter Param highlighte...

When a prototype has a selection_box (possibly also collision_box ?) set to be non centered, this is placed based on the entities 4 main directions (N, E, S, W) cleanly, but for the extra rotations (NE, SE, SW, NW) in an 8 way rotatable entity the offsets are always as if the rotation is north. Exam...

Yea I hit this as well.
Had to do a whole process to; catch build, review validity, if bad refund and show to player valid placement positions.
Was a bunch of code and added complexity to work around this issue.