Highly Performant & Scalable Ultima Online Server Emulator
https://www.modernuo.com
c-sharpcsharpcsharp-coredotnetdotnet-coreemulatorgplgplv3mmommo-enginemmorpgmmorpg-serveronlinerpgrunuoserverservuoultimaultima-onlineuo
8bd1b3dc28
## Summary
`[AddonGen` currently produces addon scripts that **do not compile**, plus a few
gather-logic and UI bugs. This fixes all of them.
## Compile-breaking (verified)
Every generated addon failed to build because of the item-component emission path:
- **Trailing comma + missing semicolon.** Items were emitted as a multi-line
`AddComponent(\n … ,\n)` — a trailing comma in the argument list and no terminating
`;`, i.e. `CS1525: Invalid expression term ')'` and `CS1002: ; expected`.
- **`Deed` missing `new`.** The template emitted
`public override BaseAddonDeed Deed => {name}AddonDeed();` — invoking the type as a
method (`CS1955: Non-invocable member … cannot be used like a method`).
Both are now fixed; components are emitted on a single line matching the existing
static-tile path:
```csharp
AddComponent(new AddonComponent(3215) { Light = LightType.Circle300, Hue = 5 }, 2, 3, 5);
```
**Verification:** compiled the generator's *output* (a representative two-component addon —
one plain, one hued + light-source) before and after the change against minimal
`BaseAddon`/`AddonComponent` stubs:
- Before: `CS1525` + `CS1002` (item path), and `CS1955` in isolation for the `Deed` line.
- After: **Build succeeded.**
`Projects/UOContent` also builds clean with the source change.
## Gather-logic + UI (reasoned from the code, not runtime-tested)
- **Inverted Z-range guards.** The tile/item scan used `if (range && …)`, so with the range
filter off (the default) map tiles and items were never captured — inconsistent with the
Static pass's `if (!range || …)`. Corrected to match.
- **"Export Items" was dead unless "Export Statics" was also checked** — the items scan was
nested inside `if (statics)`. Items now scan independently. Placed `Static` items are
skipped in this path because they're already captured (with hue/light) by the
`GetItemsInBounds<Static>` pass, which also removes a pre-existing double-count.
- **Swapped gump Min/Max labels** — the "Max" label sat over the Min entry and vice versa.
## Notes
The three gather/UI fixes are reasoned from the code rather than exercised through the
in-game gump, so they're worth a close look in review. The compile fixes are the headline
and are output-verified.
|
||
|---|---|---|
| .config | ||
| .github | ||
| branding | ||
| dev-docs | ||
| Distribution/Data | ||
| Projects | ||
| .cursorrules | ||
| .editorconfig | ||
| .gitattributes | ||
| .gitignore | ||
| AGENTS.md | ||
| azure-pipelines.yml | ||
| CLAUDE.md | ||
| CODE_OF_CONDUCT.md | ||
| CONTRIBUTING.md | ||
| Directory.Build.props | ||
| FAQ.md | ||
| GEMINI.md | ||
| global.json | ||
| LICENSE | ||
| ModernUO.slnx | ||
| publish.cmd | ||
| publish.ps1 | ||
| publish.sh | ||
| README.md | ||
| rider-settings.zip | ||
| Rules.ruleset | ||
| SPONSORS.md | ||
| stylecop.json | ||
| THIRD-PARTY-NOTICES | ||
| version.json | ||
ModernUO 
Ultima Online Server Emulator for the modern era!
Requirements
Supported Operating Systems
Required Frameworks
All Operating Systems
Windows
Development
Supported IDEs
Getting Started
- Install prerequisite requirements
- Clone this repository (or download the latest):
git clone https://github.com/modernuo/ModernUO.git
- Open
ModernUO.slnto start developing
Building/Publishing
Interactive Mode (Recommended for new users)
Run ./publish.cmd (Windows) or ./publish.sh (Linux/macOS) with no arguments to launch the guided build tool. It will:
- Check prerequisites (.NET SDK, native libraries)
- Walk you through configuration and platform selection
- Build and publish the server to the
Distributiondirectory - Show deployment instructions for cross-compiled builds
Command Line
./publish.cmd [release|debug] [os] [arch]
os- Supported operating systemsarchx64- Intel/AMD 64-bitarm64- ARM 64-bit
Linux Prerequisites
Fedora, CentOS, RHEL, etc
dnf upgrade --refresh -y
# CentOS does not come with EPEL enabled
dnf install -y epel-release epel-next-release
dnf install -y findutils libicu libdeflate-devel zstd libargon2-devel liburing-devel
Ubuntu, Debian, etc
apt-get update -y
apt-get install -y libicu-dev libdeflate-dev zstd libargon2-dev liburing-dev
OSX Requirements
brew install icu4c libdeflate zstd argon2
Running the Server
- Follow the publish instructions
- The
Distributiondirectory is portable — copy it to your production server for deployment - Run
ModernUO.exeordotnet ModernUO.dllfrom theDistributiondirectory - On first run, the server will prompt you to configure game data file locations
Troubleshooting / FAQ
- See FAQ
Want to sponsor?
Thank you for supporting us! You can find out how by visiting the sponsors page.
Collaborators
Thanks
- RunUO Team & Community
- Voxpire, the ServUO Team & Community
- Karasho, Jaedan and the ClassicUO Community
Development Tools & Plugins provided with ♥ by
Code Signing Policy
Free code signing provided by SignPath.io, certificate by SignPath Foundation.
This program will not transfer any information to other networked systems unless specifically requested by the user or the person installing or operating it
Teams & Roles
Approvers & Committers: Development Team