LuaTile.get_light_level()

[PyroFire]

Can has a method to get the light level on a surface's x,y position (or a LuaTile) please?

[captain828]

What do you mean by light level? related to the day-night schedule or something else?

AFAIK light level is only at the surface-level and you can get it from LuaSurface.darkness

[PyroFire]

Another name for this function could be LuaTile.get_luminosity()

The use is to return some value showing how "lit" a given position is, taking into account things like lamps, time of day, darkness and the player flashlight.

Screenshot illustrating what i'm hoping to get from this request:

[captain828]

Ah, okay.
Not sure if it would make sense to keep this info at the tile level though as there are many things that can affect a tile's light + there could be an object covering the tile.
All that sounds expensive to keep per-tile as it is outside the scope of a single tile and would have to be recalculated every time an entity is added + the tod changes.

A higher-level LuaLighting might make more sense from an engine perspective - it could act as an opacity layer and you could request the light level at x, y and it would return the opacity (float 0-1), where 0 is max light and 1 pitch black.

So something like this:

Code: Select all

LuaLighting.get_opacity(surface, x, y)

[boskid]

It is not going to happen. Light levels are rendered from png and so headless server would not be able to compute this values.

[darkfrei]

No lamp-powered solar panels.

[Rseding91]

It is not going to happen. Light levels are rendered from png and so headless server would not be able to compute this values.

Graphics in general are not deterministic (different qualities/settings/resolutions). There's no supported system to read light level at a specific tile. It's all just rendering (or lack of rendering the dark overlay on the game).