FOSS gamedev and creative worlds

I'm developing an underground area. Using worldedit I put searchlights (lights mod) across the entire ceiling.

But then I wasn't able to place any nodes/blocks on the floor. When I tried the node would disappear. The only way to place a node was to fly up and punch a section of searchlights off.

I got tired of doing this so I used worldedit again to replace the searchlights with the default torches.

OK, now I can place nodes on the floor. However, I noticed something curious during the transistion between searchlights and torches - even though the light source was gone the ambient light persisted.

To further test this I removed all the lights from the ceiling.

The underground area should have gone pitch black but instead it was bright as day. Also, the stone ceiling now has a checkerboard light effect.

I've tried replacing the stone ceiling with different nodes, even air, but the ambient light and the checkerboard effect still persist.

I've attached a screenshot to help better illustrate.

(NOTE: I turned the "smooth lighting" option off in the settings for a bump up in speed. Turning smooth lighting off and on didn't fix the problem.)

Any ideas?

Thanks.

lighting is not updated on light source changing, but on node changing.

Restart the game, or place some nodes around there

Same problem in my walking-light mod. I had to remove the light node, replace it with a non-transparent node (cobble) and replace that with air.

should be two new lua functions added.

+1

rubenwardy wrote:should be two new lua functions added.

Your phone or window isn't wide enough to display the code box. If it's a phone, try rotating it to landscape mode.

Code: Select all

minetest.force_update(pos) -- does all the active block stuff at pos

minetest.force_update_light(pos) -- re-does light rendering in that zone

Added to the walking_light mod or as a seperate init.lua file?

I copy/pasted the lines (as is) into the walking_light mod's init.lua and Minetest refused to run when it tried to load that mod.

I don't understand Lua well enough yet to implement this myself. If you wouldn't mind, please post where and how these lines are to be added.

Thanks.

LazyJ wrote:

rubenwardy wrote:should be two new lua functions added.

Your phone or window isn't wide enough to display the code box. If it's a phone, try rotating it to landscape mode.

Code: Select all

minetest.force_update(pos) -- does all the active block stuff at pos

minetest.force_update_light(pos) -- re-does light rendering in that zone

Added to the walking_light mod or as a seperate init.lua file?

I copy/pasted the lines (as is) into the walking_light mod's init.lua and Minetest refused to run when it tried to load that mod.

I don't understand Lua well enough yet to implement this myself. If you wouldn't mind, please post where and how these lines are to be added.

Thanks.

The functions dont exist. Its a feature request from rubenwardy.

uh... you people do know you can directly call nodeupdate(pos), right...?

GloopMaster wrote:uh... you people do know you can directly call nodeupdate(pos), right...?

Thats only for falling nodes (make falling nodes fall): https://github.com/celeron55/minetest_game/blob/master/mods/default/init.lua#L1727