Left 4 Dead 2

Left 4 Dead 2

Bot AI Improvements
 This topic has been pinned, so it's probably important
T-Rizzle  [developer] 20 Sep, 2022 @ 6:03am
Suggestions
Have any features you want to see on this addon. Suggest them here and I will try to add them.
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Showing 1-15 of 79 comments
sans shapiro 20 Sep, 2022 @ 11:43am 
After playing a bit, I noticed bots will try crouching and taking potshots during gauntlet events like the Coaster. Adding a "minimum distance to human" condition for crouching might help them keep up again.
Another edge case is they sometimes crouch in front of Tanks.
T-Rizzle  [developer] 20 Sep, 2022 @ 1:35pm 
Originally posted by sans shapiro:
After playing a bit, I noticed bots will try crouching and taking potshots during gauntlet events like the Coaster. Adding a "minimum distance to human" condition for crouching might help them keep up again.
Another edge case is they sometimes crouch in front of Tanks.
1. That is possible, I just need to figure out a fail safe incase the team is made of only bots, Ex. “all human players are dead.”
2. I think I know why this is happening, bots only crouch if three variables are true. First check if the common infected target is not too far away, Second check if the common infected target is not too close, Third and final, check for active threats. The check for active threats stop bots from crouching when they can’t see common infected, but if they see an special infected they check the COMMON INFECTED’S distance and not the special infected’s distance. I can fix this with a function that checks if a tank is nearby along with other special infected.
T-Rizzle  [developer] 20 Sep, 2022 @ 5:51pm 
Originally posted by sans shapiro:
After playing a bit, I noticed bots will try crouching and taking potshots during gauntlet events like the Coaster. Adding a "minimum distance to human" condition for crouching might help them keep up again.
Another edge case is they sometimes crouch in front of Tanks.
Done, let me know how the update goes. I did some testing before posting it and everything looked good.
sans shapiro 21 Sep, 2022 @ 9:54am 
The update does seem to make them expert-viable again after playing a few chapters now that they can keep pace. but I didn't see much difference in crouching during Tank fights, unfortunately (Imgur:gZLzu5r for the last one i had). Only other issue I encountered is bots crouch-walking through Spitter goo, but overall the update is good.
TBK Duy 13 Oct, 2022 @ 7:21am 
+ Make bots shove more often if any infected get close
+ If a bots got smoked, make its focus on killing the smoker (TONGUE TWISTER)
+ Try to make all bots pickup magnum than pistol (Ellis for example)
+ Dodge Charger (if you can :steamhappy:)
T-Rizzle  [developer] 13 Oct, 2022 @ 12:54pm 
Originally posted by Duy Trịnh:
+ Make bots shove more often if any infected get close
+ If a bots got smoked, make its focus on killing the smoker (TONGUE TWISTER)
+ Try to make all bots pickup magnum than pistol (Ellis for example)
+ Dodge Charger (if you can :steamhappy:)
1. sb_close_threat_range tells the bot to focus on the one zombie that enters this range if you set it to 0 it should allow the bot to change targets as much as it wants and this causes the bot to shove more often.

2. I will be implementing this, it should hopefully be in the next update

3. I don’t know how to do that, but you can use Left4Bots and force Ellis and Zoey bots to pick it up by looking at the magnum and then type in the chat Ellis use or Zoey use

4. Doesn’t look very possible but, I will see what I can do.
Last edited by T-Rizzle; 13 Oct, 2022 @ 2:08pm
tom 15 Oct, 2022 @ 7:36am 
r u able to make the bots go on the turrent thingy (idk whats it called)
T-Rizzle  [developer] 15 Oct, 2022 @ 8:06am 
Originally posted by meow:
r u able to make the bots go on the turrent thingy (idk whats it called)
The mounted guns? It’s not as easy as you think it is, but I can attempt to get bots to use it on their own. Once I release the next update. I will start working on it and let you know how it goes.
Typical 17 Oct, 2022 @ 7:07am 
make bots shove after they shoot with the T1 Shotguns and also for bolt css weapons like the sniper ones
Last edited by Typical; 17 Oct, 2022 @ 7:45am
T-Rizzle  [developer] 17 Oct, 2022 @ 4:21pm 
Originally posted by Typical:
make bots shove after they shoot with the T1 Shotguns and also for bolt css weapons like the sniper ones
I think this is possible, I will try to make it after I release the update that allows this addon to make it more customizable and allow players to edit the script rethink rate.
tom 17 Oct, 2022 @ 8:55pm 
-make the bots shoot any explosive items, gas can, fireworks box etc. if the soecial infected is in the sperfec radius in the item hitbox then the bot will shoot it if its in the circle in the radius

-carry objects e.g gas can, explosive gas, if the bots cant find/have any moly or pipe bomb, the bots will throw at the zombies and shoot at the can.
Typical 18 Oct, 2022 @ 8:48am 
You could add some more cvars to disable some of the bots abilities, like have an option to disable the bots to deadstop hunters and jockeys
T-Rizzle  [developer] 18 Oct, 2022 @ 9:19pm 
Originally posted by Typical:
You could add some more cvars to disable some of the bots abilities, like have an option to disable the bots to deadstop hunters and jockeys
I will see what I can do
TBK Duy 19 Oct, 2022 @ 7:18pm 
Does this mod have "Target priority" yet, I want the bots focus on dealing with SI first if they are on the ideal range rather than common infected

si_focus_range = 500 for example (if any SI get close to this range, the bots immediately focus on killing that SI with forced attack button method)

Also can you give an option to adjust how many bots can use melee (I might want none since I have bots pickup magnum)
Last edited by TBK Duy; 19 Oct, 2022 @ 7:31pm
Typical 19 Oct, 2022 @ 7:42pm 
Could you make bots to wait the shotguns to reload? since it basically renders them useless when they are in a horde mob event, because of that they always spam the attack button while they are reloading the shotgun and they take a long time to kill the zombies.
Last edited by Typical; 19 Oct, 2022 @ 7:43pm
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