ce1adebc78
## Problem
`AddPlayerBot()` falsely rejects player bot additions with *"You have
added too many bots (more than 40)"* even when the player has zero
personal bots.
This happens because the `MaxAddedBots` check at `PlayerbotMgr.cpp:124`
adds `botLoading.size()` to the player's personal bot count:
```cpp
uint32 count = mgr->GetPlayerbotsCount() + botLoading.size();
```
`botLoading` is a `static std::unordered_set<ObjectGuid>` on
`PlayerbotHolder` — shared by both `PlayerbotMgr` (per-player) and
`RandomPlayerbotMgr` (singleton). When `RandomPlayerbotMgr` loads random
bots at startup (up to 60 per interval via `RandomBotsPerInterval`),
their GUIDs go into the same global set. During the startup loading
window, `botLoading.size()` can easily reach 100–300, far exceeding the
default `MaxAddedBots = 40` limit.
The result: any player who logs in during the random bot loading window
and tries `.playerbot add <name>` gets blocked, even though the limit is
intended to be per-player.
### How to reproduce
1. Set `AiPlayerbot.RandomBotAutologin = 1` (default) with 500 random
bots
2. Start the server
3. Log in immediately while random bots are still loading
4. Run `.playerbot add <character_name>` for an offline character on
your account
5. Get *"You have added too many bots (more than 40)"* despite having 0
personal bots
6. Wait 1–2 minutes for random bot loading to finish, try again — works
### Root cause
- `PlayerbotHolder::botLoading` is declared `static` at
`PlayerbotMgr.h:60`, so both `PlayerbotMgr` and `RandomPlayerbotMgr`
share the same set
- `AddPlayerBot()` inserts into `botLoading` at line 147 for ALL callers
— both player-initiated adds (`masterAccountId > 0`) and random bot
spawns (`masterAccountId = 0`)
- The count check at line 124 uses `botLoading.size()` (the entire
global set) instead of filtering to bots being loaded for the requesting
player
- The config comment confirms the intended scope: *"The maximum number
of bots that a player can control simultaneously"*
## Fix
Change `botLoading` from `unordered_set<ObjectGuid>` to
`unordered_map<ObjectGuid, uint32>` where the value is the
`masterAccountId` passed to `AddPlayerBot()`. Random bots are loaded
with `masterAccountId = 0`.
The count check now iterates the map and only counts entries matching
the current player's `masterAccountId`:
```cpp
uint32 loadingForMaster = 0;
for (auto const& [guid, acctId] : botLoading)
{
if (acctId == masterAccountId)
++loadingForMaster;
}
uint32 count = mgr->GetPlayerbotsCount() + loadingForMaster;
```
### Callsite compatibility
All 10 existing `botLoading` callsites were audited:
| Callsite | Operation | Compatible |
|----------|-----------|-----------|
| `PlayerbotMgr.cpp:85` | `find()` by key | Yes |
| `PlayerbotMgr.cpp:153` | `emplace()` (was `insert()`) | Changed |
| `PlayerbotMgr.cpp:174` | `erase()` by key | Yes |
| `PlayerbotMgr.cpp:209` | `erase()` by key | Yes |
| `PlayerbotMgr.cpp:229` | `erase()` by key | Yes |
| `PlayerbotMgr.cpp:1163` | `find()` by key | Yes |
| `RandomPlayerbotMgr.cpp:429` | `empty()` | Yes |
The six unchanged callsites use `find()`, `erase()`, and `empty()` which
operate on keys identically for both `unordered_set` and
`unordered_map`.
## Files changed
| File | Change |
|------|--------|
| `src/Bot/PlayerbotMgr.h` | `botLoading` type:
`unordered_set<ObjectGuid>` → `unordered_map<ObjectGuid, uint32>` |
| `src/Bot/PlayerbotMgr.cpp` | Definition type updated, `insert` →
`emplace` with `masterAccountId`, count check filters by
`masterAccountId` |
## What is NOT changed
- `MaxAddedBots` config key and default value (40) — unchanged
- Random bot loading behavior — unchanged
- The `botLoading.empty()` throttle in `RandomPlayerbotMgr` — unchanged
- In-game group invite flow — unaffected (does not go through
`AddPlayerBot`)
- No new config keys, no schema changes, no API changes
---------
Co-authored-by: Keleborn <22352763+Celandriel@users.noreply.github.com>
Co-authored-by: bash <hermensb@gmail.com>
Co-authored-by: Revision <tkn963@gmail.com>
Co-authored-by: kadeshar <kadeshar@gmail.com>
Co-authored-by: Hokken <Hokken@users.noreply.github.com>
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Playerbots Module
mod-playerbots is an AzerothCore module that adds player-like bots to a server. The project is based off IKE3's Playerbots.
Features include:
- The ability to log in alt characters as bots, allowing players to interact with their other characters, form parties, level up, and more
- Random bots that wander through the world, complete quests, and otherwise behave like players, simulating the MMO experience
- Bots capable of running most raids and battlegrounds
- Highly configurable settings to define how bots behave
- Excellent performance, even when running thousands of bots
We also have a Discord server where you can discuss the project, ask questions, and get involved in the community!
Installation
Supported platforms are Ubuntu, Windows, and macOS. Other Linux distributions may work, but may not receive support.
Important: All
mod-playerbotsinstallations require a custom fork of AzerothCore: mod-playerbots/azerothcore-wotlk (Playerbot branch). The standard AzerothCore repository will not work.
Quick Start
git clone https://github.com/mod-playerbots/azerothcore-wotlk.git --branch=Playerbot
cd azerothcore-wotlk/modules
git clone https://github.com/mod-playerbots/mod-playerbots.git --branch=master
Then build the server following the platform-specific instructions in our Installation Guide.
Testing branch: A
test-stagingbranch is available with the latest features and fixes before they are merged intomaster. To use it, clone with--branch=test-staginginstead. Note that this branch may contain unstable or breaking changes — use it at your own risk and only if you are comfortable troubleshooting issues.
Detailed Guides
| Guide | Description |
|---|---|
| Installation Guide | Full step-by-step instructions for clean installs, migrating from existing AzerothCore, Docker setup, adding modules, and updating |
| Troubleshooting | Solutions to the most common build errors, database issues, configuration mistakes, crashes, and platform-specific problems |
For additional references, see the AzerothCore Installation Guide and Installing a Module pages.
Documentation
The Playerbots Wiki contains an extensive overview of AddOns, commands, raids with programmed bot strategies, and recommended performance configurations. Please note that documentation may be incomplete or out-of-date in some sections, and contributions are welcome.
Bots are controlled via chat commands. For larger bot groups, this can be cumbersome. Because of this, community members have developed client AddOns to allow controlling bots through the in-game UI. We recommend you check out their projects listed in the AddOns and Submodules page.
Contributing
This project is still under development. We encourage anyone to make contributions, anything from pull requests to reporting issues. If you encounter any errors or experience crashes, we encourage you report them as GitHub issues. Your valuable feedback will help us improve this project collaboratively.
If you make coding contributions, mod-playerbots complies with the C++ Code Standards established by AzerothCore. Each Pull Request must include all test scenarios the author performed, along with their results, to demonstrate that the changes were properly verified.
We recommend joining the Discord server to make your contributions to the project easier, as a lot of active support is carried out through this server.
Please click on the "⭐" button to stay up to date and help us gain more visibility on GitHub!
Acknowledgements
mod-playerbots is based on ZhengPeiRu21/mod-playerbots and celguar/mangosbot-bots. We extend our gratitude to @ZhengPeiRu21 and @celguar for their continued efforts in maintaining the module.
Also, a thank you to the many contributors who've helped build this project: