Hmm, I didn't think of that. I was trying to do it all inside the technology prototype file (derp). Thanks.

Hello, it's me again...

Is it possible to have complementary technologies in Factorio? For example:

Two technologies, "tech-1" and "tech-2". "tech-1" unlocks recipe "recipe-1", "tech-2" unlocks "recipe-2". When both are researched, "recipe-3" is unlocked.

I know this could be done easily by ...

@Nexela:
Most enlightening, thank you. I don't like to copy other people's code, on a matter of pride (whatever I have left, after embarassing myself totally in this thread :lol: ).

I will however look at what you've written, and incorporate parts of it into my existing code. 'Inspiration', shall ...

@Nexela:
Player is the index, in my code. I think so, anyway
local player = game.players[event.player_index]

Therefore,
player.index
would be the same as
event.player_index.index
would it not?

Also, I didn't know arrays could have fields, I thought they could only have cell entries.

@Adil ...

Hmmm... fresh problems. I hope it's fine to post in this thread, now that the problem in the OP is resolved? Try as I might, I cannot figure out the source of this issue.

For some reason, it would appear that the data isn't being saved. No errors this time, however.

script.on_event(defines.events ...

Well, that worked! Errors no more.

Thanks to you fine chaps who took the time to reply, you've probably saved me a fair few hours of feverish Googling and headscratching.

@Nexala:

"player = game.players[player_index] -- this is "the player"
playerdatafrommod = global.players[player_index] -- this is "the players data stored from my mod""

Yes, but the problem with that solution is that (I think) it could only store one piece of data per player index; I need it to ...

Yes, I thought that might be the case. However, upon addding

global.ammorrack[player] = player

to the code (just above the threee lines entering into the array near the bottom), I get a different error;

on_player_ammo_inventory_changed (ID 36)
LuaPlayer doesn't contain key 1.
stack traceback ...

I'm rather new to Lua, though I have dabbled in Java and C#. I've been encountering the following problem, and have had no luck in fixing it:

Error while running event on_player_ammo_inventory_changed (ID 36)
__Placeholdername__/control.lua:29: attempt to index field '?' (a nil value)

Code in ...

This mod is lovely, but I've encountered certain problems. Not glitches or bugs; as far as I can see the mod works perfectly... more that it's a bit... overwhelming.

I like the spawning of huge armies consisting of hundreds of units on my doorstep, since it does indeed make the game more ...

Actually, I think you just gave me the solution. Thanks very much; you've been most helpful.

Also, I have to say - I love your profile picture.

I see, thank you. I'll try that. So, I presume, count the number of magazines in the player's inventory whenever the inventory is changed, and then add the appropriate number of cells.

However, when the player manually drops off stuff from his inventory into a container, that would trigger the ...

So... I am working on a mod, which adds a couple new weapons and their corresponding ammo types (power cells). Now, I scoured through base and core, and couldn't find the scripts responsible for deleting empty magazines.

Is there any way to prevent the deletion of an empty magazine (or ...

That's not quite what I mean; I am talking about preventing the player from firing the weapons of the vehicle they are in. With a little bit of trig, I am sure I could mock up a firing arc restriction.

Is there any way to prevent the player from firing the weapon, then?

I hope this is the right subforum to post this...

Is there any way to limit a vehicle's weapon firing ability to an arc in front of the vehicle (i.e. 45')? Some weapons just shouldn't be able to fire in a 360' arc.

Now, damn. If only there were a mod with the utility of this mod, and the take-off/landing mechanics of the 'Raven' mod...