Community members! In our previous updates, we announced a pretty big overhaul of humanskins and sound. Both of these will be introduced when we push our next update. But what we haven’t told you yet is what else will be included in what we call “Community Update 2”. This blog is all about the rework we have started to improve the behavior of bots in both conquest and multiplayer. We are sure this update will vastly improve the player experience. Like the small arms weapon sounds and skins overhaul, this will come your way in Community Update 2!

AI Bot Behavior

We have embarked on a rework of bot behavior. It’s nowhere near finished yet! A large part of the work will be included in Community update 2, the rest will come in a separate update. However, we can already highlight some important changes.
Reworking bots takes a very long time, since there are countless aspects to work on. Our goal for this update was to improve the AI bots’ perceived intelligence to provide a greater challenge for players while also reducing the need for the bot to spam as many units. We also addressed pre- existing bugs that were inherent to this version of the game engine.

For the upcoming update, we have focused our efforts to improve the bots in 3 main areas:
1. Separating Multiplayer and Conquest’s AI Bot logic
2. Improving the AI’s unit purchasing decisions
3. Improving the Bot’s unit behavior after spawning


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Separate logic

So far, we were compelled to use the same bot logic for both MP and Conquest. Even though this enabled pretty much everything you need under most circumstances, there was room for improvement. We have now separated the logic.
Since they are now separate, bots for any game mode can be controlled completely independently. This results in better adaptability, which improves gameplay.

Purchasing

We added the ability to control the timing of bots’ first unit purchases. In MP this means the bots get their first unit immediately just like players. In Conquest bots can have different "start" times depending on whether they are the attacker or the defender.
Previously, due to the file structure and the outdated scripts, bots would attempt to purchase “impossible” units from other time periods or units it couldn't afford; in other cases, it would try to get units that were still on cooldown timers. This would cause the purchase scripts to - unnecessarily - skip or loop endlessly. As a result it would take far too long before bots were buying valid units. We have improved this by updating the file structure so only the units for the current game mode and time period are considered along with adjusting the scripts to filter out units that are on cooldown or are too expensive. We are considering making an open beta branch available in order to allow modders (and anyone else) to anticipate the update, so everyone can try out the flexibility in this new structure. If we do an open beta, we will let you know.


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Another feature that is WIP, but which won't be quite ready for the next update, is the ability to track all the unit types and how many each player (bots and users) currently have. This will allow us to create new and more advanced scripts to improve the bot's purchase decision making based on the units the bot already has, and what the opponents have.

Unit behavior after spawn

In Multiplayer, we added a new factor that improves the AI units' initial move order (the flag they choose to move towards after spawning). Bots will not only consider which team has captured a flag, now they will also consider the flag's location in relation to their own side of the map. Bots will prefer to capture flags on their own side and the flags along the centerline, before flags on the opposing team's side.


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On top of the bots’ global movement of troops, a lot of work has been invested in cleaning up the bot algorithms and scripts. This will ensure no negative performance, as well as bringing AI gameplay closer to what an ordinary human would do. For example: bot tanks, when spotting an enemy, will attempt to "gather" a squad of nearby bot soldiers and perform various actions, from advancing and attacking, to engaging from a static location. The additional infantry squad during this period helps to protect the tank and improve its vision if it does indeed advance.


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Community update 2

Our first community update was published about a year ago, and like last year’s, this community update intends to reward the continued support and constructive criticism we get from you, the Gates of Hell community. Community update 2 will be free for everyone of course.
As you may have spotted in one of the images in this blog, we will also add a bunch of DCG maps to this update. The list of additions is already quite long. If you missed our blog about humanskins and sounds, we recommend you check Development update 126 as well, which details work we have going on in those areas.


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Our beta testers are working their way through the update right now, and progress is good.
Community Update 2 will probably go live sometime this spring.
Would you agree this is going to be a sizable step up in quality of life for everyone? Let us know in the comments!

Did you know?

• Community update 2 is the 5th large & free update for Gates of Hell: Ostfront
• We will do a developer Q&A on our Discord server in March.
• We have a map design competition going on! This takes place on our Discord server as well.
• You can help spread the word on Gates of Hell by linking people to our LinkTree. Thanks for your support!