Lua Labs

Moderator: Forum Moderators

New Topic

264 topics

Page 1 of 9
- Jump to page:
1
2
3
4
5
…
9
Next

Announcements

Replies

Views

Last post

Call for mainline portraits and story art

Last post by egallager « January 13th, 2026, 12:32 am
Posted in Art Contributions
Replies: 18
by nemaara » April 18th, 2024, 11:03 pm » in Art Contributions
1

2
Several of our mainline campaigns are in the works for upgrades at the moment, which includes adding characters and enhancing existing scenarios. We are looking for more artwork to supplement these upgrades, including the following:

5 portraits
Female Captain (Mari)
Asheviere - 4 variations...
18 Replies

304885 Views

Last post by egallager
January 13th, 2026, 12:32 am
Wesnoth on Liberapay

Last post by tr0ll « January 1st, 2024, 3:29 am
Posted in Users’ Forum
Replies: 32
by Pentarctagon » April 5th, 2019, 2:09 pm » in Users’ Forum
1

2

3
Greetings!

We are happy to announce that Wesnoth is now able to accept donations on Liberapay . While Wesnoth does rely on the work of dedicated volunteers, no project can function completely cost-free. Revenue from the Apple App Store and from donations goes towards maintaining our servers,...
32 Replies

1652546 Views

Last post by tr0ll
January 1st, 2024, 3:29 am
[Policy] Important links for new users

Last post by Forum Moderators Team « September 3rd, 2011, 1:45 am
Posted in Users’ Forum

by Forum Moderators Team » September 3rd, 2011, 1:45 am » in Users’ Forum

There have been numerous important forum posts and wiki articles written by users and developers. We reference these pages a lot, and decided to put them together in a convenient list.

------

0 Replies

849059 Views

Last post by Forum Moderators Team
September 3rd, 2011, 1:45 am
[Policy] Community Guidelines — Updated June 10th 2024

Last post by Forum Moderators Team « June 10th, 2024, 7:58 pm
Posted in Users’ Forum
Replies: 6
by Forum Moderators Team » October 17th, 2010, 2:38 am » in Users’ Forum

Write clearly, be nice to others, and be very careful when posting anything related to politics or religion. When asking for help, remember that everyone here is a volunteer. Prefer editing your previous post over double posting. No animated avatars or graphical signatures. Don’t plagiarize other’s...

6 Replies

5967670 Views

Last post by Forum Moderators Team
June 10th, 2024, 7:58 pm

Topics

Replies

Views

Last post

[SOLVED] Wesnoth hanging on map generation

Last post by Sventimir « December 17th, 2025, 9:57 am
Replies: 4
by Sventimir » December 16th, 2025, 12:57 pm

Hello,
I'm developing a random map generator for my campaign. It's currently over 3000 lines of Lua code and probably not a very well-optimized at that. As I try to add a new feature to it. I'm going into the situation, where Wesnoth hangs on map generation. The window stops refreshing. When I call...

4 Replies

172 Views

Last post by Sventimir
December 17th, 2025, 9:57 am
[SOLVED] wesnoth.game_events and undoing moves.

Last post by Celtic_Minstrel « September 30th, 2025, 8:43 pm
Replies: 3
by Sventimir » September 30th, 2025, 5:06 pm

Hello,
the EventWML documentation describes allow_undo and on_undo direct action tags. However, there seems to be no equivalent for them in the LUA API, wesnorth.game_events.add and wesnoth.game_events.add_menu don't mention any option of allowing undo. wesnoth.game_events.add_repeating does have...

3 Replies

589 Views

Last post by Celtic_Minstrel
September 30th, 2025, 8:43 pm
Another basic lua query

Last post by Spannerbag « August 30th, 2025, 9:21 am
Replies: 84
by Spannerbag » May 2nd, 2025, 11:57 am
1

2

3

4

5

6
Hi,
Still playing with the forest animals micro ai and am rather lost after some progress.
The following test setup was merely to check I was capturing correct data and it sent me down a rabbit hole.

Yes, it is basically and I have a cutdown version that works. :shock:
Here though I have a couple...
84 Replies

12439 Views

Last post by Spannerbag
August 30th, 2025, 9:21 am
Proposed micro_ai logic sanity check

Last post by Spannerbag « May 27th, 2025, 11:00 am
Replies: 14
by Spannerbag » May 10th, 2025, 12:23 pm

Hello,
As a project I've decided to try and create a new micro_ai.
I did have quite a bit of the logic below working using WML but my implementation was messy and inelegant, hence an attempt at a purely lua implementation.

Below is a breakdown of the proposed logic.

All thoughts and comments...

14 Replies

3697 Views

Last post by Spannerbag
May 27th, 2025, 11:00 am
Gui Debug Tools 0.10.6 for 1.18 BfW

Last post by SigurdFireDragon « May 11th, 2025, 11:45 pm
Replies: 62
by SigurdFireDragon » August 6th, 2016, 5:16 pm
1

2

3

4

5
This is my fifth add-on, Gui Debug Tools.
It is written completely in Lua.
Current version is 0.10.6 for the 1.18 series.
First released for BfW 1.13.5.

I have found the tools in this add-on useful in making bug reports and developing add-ons.

It is mostly based on code from the Wesnoth Lua Pack...
62 Replies

89442 Views

Last post by SigurdFireDragon
May 11th, 2025, 11:45 pm
Unit movement animation problem

Last post by ZombieKnight « April 23rd, 2025, 5:13 am
Replies: 2
by ZombieKnight » April 22nd, 2025, 2:20 pm

Hey, I'd like to animate two units, switching their places, in standart time rate, (which is 200ms)
This code almost works, except the animator:add(u, movement , hit ,{with_bars = false}) part takes 500ms (because some units do have longer animation, which is played over more tiles), resulting in...

2 Replies

3409 Views

Last post by ZombieKnight
April 23rd, 2025, 5:13 am
Micro AIs new question

Last post by Spannerbag « April 17th, 2025, 9:56 am
Replies: 15
by Spannerbag » March 31st, 2025, 11:16 pm
1

2
Hi, hope I'm posting this in the right place.

Moved over to the Lua Labs.

Edit: Oops and thanks!

Basically I want a nuisance micro ai that gets in the way by moving its units randomly around the map, ignoring other units (be they friend or enemy).
The (hoped for) result would be combat vs...
15 Replies

8609 Views

Last post by Spannerbag
April 17th, 2025, 9:56 am
Horrible lua hack almost working

Last post by Spannerbag « March 24th, 2025, 11:36 pm
Replies: 6
by Spannerbag » March 21st, 2025, 1:09 pm

Hi,
I so often need to extract the x,y of a unit that I decided to write a quick WML inline hack to do this.
It works as expected except for units on recall.

Here's the relevant code:

This all works fine ( $gux and $guy return values expected) except for recall.

Ideally I'd like to:
Allow...

6 Replies

8823 Views

Last post by Spannerbag
March 24th, 2025, 11:36 pm
Teleport Function

Last post by Spannerbag « March 20th, 2025, 8:14 pm
Replies: 8
by Saizo-Luz » November 27th, 2024, 11:05 pm

About the function.

I believe this is the code of the teleport tag.

Would anyone here be able to create a teleport code that could teleport more than one unit at the same time? Similar to the tag, where we can animate multiple units at once using .

Is it possible? :hmm:

8 Replies

5002 Views

Last post by Spannerbag
March 20th, 2025, 8:14 pm
Lua error

Last post by Spannerbag « December 23rd, 2024, 12:40 am
Replies: 2
by Spannerbag » December 22nd, 2024, 10:47 pm

Hi,
During playtesting got this error, I use the goto micro_ai a lot in this scenario and it's never given me any problems.

The relevant lua is

I am continually tweaking code but haven't changed the micro_ai stuff recently.
If I can reproduce it I'll post details here.
Apologies but when...

2 Replies

16453 Views

Last post by Spannerbag
December 23rd, 2024, 12:40 am
Invocation of synced command outside of the players turn

Last post by Celtic_Minstrel « December 17th, 2024, 12:19 am
Replies: 3
by Tonk » December 16th, 2024, 10:19 am

Hi,

I've working on a mod that's allows it's players to place down different marks on the battleground's tiles.
The KEY FEATURE would be to any player at any time could place any marker at any tile trough the context menu . I'm trying to achieve similar behaviour to the built in Set Label or...

3 Replies

3368 Views

Last post by Celtic_Minstrel
December 17th, 2024, 12:19 am
Converting LUA table to WML array[solved]

Last post by Inkerrio « December 2nd, 2024, 8:26 pm
Replies: 5
by Inkerrio » November 29th, 2024, 6:00 am

Apparently, you do this through wml.array_access.set, but it doesn't work, not creating new WML variables and not modifying exiting. What am I missing?

5 Replies

4071 Views

Last post by Inkerrio
December 2nd, 2024, 8:26 pm
I have Lua error that I dont get it :P

Last post by white_haired_uncle « November 29th, 2024, 8:34 pm
Replies: 2
by ChaosRider » November 29th, 2024, 6:27 pm

I have error of Lua that I dont get it.
Error.png

2 Replies

4108 Views

Last post by white_haired_uncle
November 29th, 2024, 8:34 pm
unit.flying does not appear.

Last post by white_haired_uncle « November 6th, 2024, 7:32 pm
Replies: 3
by B099 » November 1st, 2024, 11:08 pm

unit.flying does not appear.

Units that fly, according to flying = yes , should have a unit.flying variable.
For me, in this circumstance, it does not appear. The code below triggers with gryphons, bats, gliders.
And unit.flying never appears.

3 Replies

4289 Views

Last post by white_haired_uncle
November 6th, 2024, 7:32 pm
wesnoth.game_events.fire how to pass [event data]?

Last post by ZombieKnight « November 3rd, 2024, 7:37 pm
Replies: 2
by ZombieKnight » November 3rd, 2024, 11:29 am

wesnoth.game_events.fire(name, [first location, ], )
The most common use of event data is to pass in the weapons for an attack event - to do this, add a primary_attack and secondary_attack tag to the config. Other data used by built-in events includes the damage_inflicted value in an attack hit...

2 Replies

3558 Views

Last post by ZombieKnight
November 3rd, 2024, 7:37 pm
Macro/file is missing

Last post by B099 « October 26th, 2024, 10:02 pm
Replies: 2
by B099 » October 26th, 2024, 9:46 pm

The following is code I copypasted from the wiki.

for i,loc in ipairs(wesnoth.map.find{terrain = Gg }) do
wesnoth.current.map = Rr
end

The error: Macro/file 'terrain' is missing

Tracestack:

-> (preload)->

I suspect that scenario and/or preload has something to do with this, because...

2 Replies

3793 Views

Last post by B099
October 26th, 2024, 10:02 pm
Accuracy does not work

Last post by B099 « September 25th, 2024, 8:05 am
Replies: 13
by B099 » September 9th, 2024, 6:47 pm

This code gets called whenever attack starts (to turn on) and ends (to turn off):

The problem: During the attck, unit will still use their normal accuracy, meaning they miss attacks, AND after the attack it says on their weapon -100% , so they can not hit anything.
The intention is that the code...

13 Replies

6907 Views

Last post by B099
September 25th, 2024, 8:05 am
event to overwrite marksman

Last post by Dalas120 « September 6th, 2024, 5:20 pm
Replies: 1
by B099 » September 6th, 2024, 4:35 pm

I noticed that effect apply_to= attack increase_accuracy=1000 and also set_accuracy=100 both get overwritten by marksman/etc. So they have 60% chance instead of 100%. Is there, a solution?
What is there out there?

1 Replies

3619 Views

Last post by Dalas120
September 6th, 2024, 5:20 pm
on_event context does not give me

Last post by B099 « September 6th, 2024, 10:38 am
Replies: 2
by B099 » September 5th, 2024, 7:19 pm

Hi, my code here:

The error says that weapon is a nil value. It also said so if i data is a nil value i tried ctx.data.weapon.damage .
Can somebody help mE?

2 Replies

3721 Views

Last post by B099
September 6th, 2024, 10:38 am
[GUI] various questions on lining stuff up

Last post by white_haired_uncle « August 31st, 2024, 2:12 am
Replies: 2
by white_haired_uncle » April 2nd, 2024, 3:09 am

At this point, I simply detest trying to get anything to line up nicely in a gui. After countless hours of error and trial, I've come no closer to having even a theory about how this stuff works.

I have two lists of units. In the right column, a header and a list of units on the recall list. It's...

2 Replies

7202 Views

Last post by white_haired_uncle
August 31st, 2024, 2:12 am
[solved] wml.get_child for unit

Last post by white_haired_uncle « August 23rd, 2024, 10:09 am
Replies: 22
by hermestrismi » August 21st, 2024, 8:18 pm
1

2
hi,
I am trying to iterate over the modifications of a unit to get a specific modifications (trait) but I got an error except a lua or wml table but get unit .
how to fix that? and if someone can tell why is it wrong?
22 Replies

9038 Views

Last post by white_haired_uncle
August 23rd, 2024, 10:09 am
[solved] Updating side variables from LUA script.

Last post by Sventimir « July 23rd, 2024, 2:22 pm
Replies: 2
by Sventimir » July 23rd, 2024, 1:24 pm

In Wesnoth 1.18.2, in my scenario WML, for some sides I have the following variables section:

When I'm trying to access these variable from a LUA script, this seems to work, although not exactly like the documentation describes it. states that:

An array variable with given name foo is assigned...

2 Replies

4830 Views

Last post by Sventimir
July 23rd, 2024, 2:22 pm
weapons special_id

Last post by Celtic_Minstrel « July 21st, 2024, 1:12 pm
Replies: 3
by hermestrismi » July 21st, 2024, 5:45 am

I have a list of weapons_specials on wml and I want to call them to a unit:add_modification using

is 'special_id sufficient in such case or I need to recreate all tags inside ?

3 Replies

4380 Views

Last post by Celtic_Minstrel
July 21st, 2024, 1:12 pm
on_event context

Last post by Celtic_Minstrel « July 21st, 2024, 1:11 pm
Replies: 21
by hermestrismi » July 19th, 2024, 11:47 pm
1

2
hi. I am trying to convert my droppable potions system from wml to lua. I used on_event context. I noticed that the items (image + table to store locations) are persistent between turns but disappear when I use reload turn. did someone have a clue about that?
21 Replies

8938 Views

Last post by Celtic_Minstrel
July 21st, 2024, 1:11 pm
[solved] unit.__cfg.advances_to

Last post by Ravana « July 21st, 2024, 12:28 am
Replies: 24
by hermestrismi » July 20th, 2024, 6:42 am
1

2
I am surrounding. can someone provide me with a function to check if a unit can advance to another unit or to null?
I tried many different methods but I am stock.
24 Replies

11144 Views

Last post by Ravana
July 21st, 2024, 12:28 am
WFL weapon AND unit

Last post by ZombieKnight « June 29th, 2024, 7:04 am

by ZombieKnight » June 29th, 2024, 7:04 am

Hi,
In tag I can access current unit and current weapon using WFL, which is great
...
BUT I don't know how to compare those two variables, because weapon object is only accessible in ,
which is the only place where unit object is hidden (overwritten with weapon object)...

Any idea how to compare...

0 Replies

6049 Views

Last post by ZombieKnight
June 29th, 2024, 7:04 am
[solved] attacker_weapon_index

Last post by gnombat « June 27th, 2024, 4:49 pm
Replies: 17
by ZombieKnight » June 22nd, 2024, 4:03 pm
1

2
Hi,
I'd like to simulate upcoming combat in the attack event.
And the wesnoth.simulate_combat requires attacker_weapon_index.
Any idea how to get it from weapon?
Thanks!
17 Replies

8529 Views

Last post by gnombat
June 27th, 2024, 4:49 pm
Lua location syntax

Last post by white_haired_uncle « June 25th, 2024, 3:07 pm
Replies: 22
by ZombieKnight » May 31st, 2024, 5:35 am
1

2
Hi
how to set facing in animation:add?

(I'd like unit to face x,y)
22 Replies

10619 Views

Last post by white_haired_uncle
June 25th, 2024, 3:07 pm
Probably stupid lua question

Last post by Spannerbag « June 9th, 2024, 2:19 pm
Replies: 4
by Spannerbag » June 9th, 2024, 12:10 pm

Hi,
I'm trying to make a version of that can accept a list of unit id s to simplify (remove) WML to winnow down choices.
The first unit in the list that exists on the map issues the message then the routine quits.
If no unit is found it does nothing (like normal ).

Ideally in time I'd like to...

4 Replies

4988 Views

Last post by Spannerbag
June 9th, 2024, 2:19 pm
Combat Animation

Last post by ZombieKnight « June 3rd, 2024, 12:55 pm
Replies: 2
by ZombieKnight » June 3rd, 2024, 12:29 pm

Hi,
How to animate my combat (abilities) same way the real combat is animated (with that sliding health decrease)?
Thanks

2 Replies

4449 Views

Last post by ZombieKnight
June 3rd, 2024, 12:55 pm

New Topic

264 topics

Page 1 of 9
- Jump to page:
1
2
3
4
5
…
9
Next

Return to Board Index

Forum permissions

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum