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# OpenDiablo2
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[](https://circleci.com/gh/OpenDiablo2/OpenDiablo2/tree/master)
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[](https://goreportcard.com/report/github.com/OpenDiablo2/OpenDiablo2)
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[](https://pkg.go.dev/mod/github.com/OpenDiablo2/OpenDiablo2)
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[](https://www.gnu.org/licenses/gpl-3.0)
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[](https://discord.gg/pRy8tdc)
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[](https://www.twitch.tv/essial)
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[](https://www.reddit.com/r/OpenDiablo2/)
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[Join us on Discord!](https://discord.gg/pRy8tdc)\
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[Development Live stream](https://www.twitch.tv/essial/)\
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[Support us on Patreon](https://www.patreon.com/bePatron?u=37261055)
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[](https://www.patreon.com/bePatron?u=37261055)
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We are also working on a toolset:\
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<https://github.com/OpenDiablo2/HellSpawner>\
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Please consider helping out with this project as well!
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----
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[OpenDiablo2](https://opendiablo2.com/) is an ARPG game engine in the same vein of the 2000's games, and supports playing Diablo 2.
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## About this project
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The engine is written in Go and is cross platform.
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OpenDiablo2 is an ARPG game engine in the same vein of the 2000's games, and supports playing Diablo 2. The engine is written in golang and is cross platform. However, please note that this project does not ship with the assets or content required to play Diablo 2. You must have a legally purchased copy of [Diablo 2](https://us.shop.battle.net/en-us/product/diablo-ii) and its expansion [Lord of Destruction](https://us.shop.battle.net/en-us/product/diablo-ii-lord-of-destruction) installed on your computer in order to run that game on this engine. If you have an original copy of the disks, those files should work fine as well.
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> The project does not ship with the assets or content required to play Diablo 2.
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You must have a legally purchased copy of [Diablo 2](https://us.shop.battle.net/en-us/product/diablo-ii) and its expansion [Lord of Destruction](https://us.shop.battle.net/en-us/product/diablo-ii-lord-of-destruction) installed on your computer in order to run that game on this engine.
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If you have an original copy of the disks, those files should work fine as well.
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We are currently working on features necessary to play Diablo 2 in its entirety. After this is completed, we will work on expanding the project to include tools and plugin support for modding, as well as writing completely new games with the engine.
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If you like to contribute to OpenDiablo2, please be so kind to read our [Contribution Policy](./docs/CONTRIBUTING.md) first.
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Please note that **this game is neither developed by, nor endorsed by Blizzard or its parent company Activision**.
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----
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Diablo 2 and its content is ©2000 Blizzard Entertainment, Inc. All rights reserved. Diablo and Blizzard Entertainment are trademarks or registered trademarks of Blizzard Entertainment, Inc. in the U.S. and/or other countries.
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## Documentation
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ALL OTHER TRADEMARKS ARE THE PROPERTY OF THEIR RESPECTIVE OWNERS.
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### For Users
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## Status
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* Buy the official game from Blizzard
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* Locate the MPQ files
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* Install OpenDiablo2 to your system (Linux/Windows/MacOS)
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* [Run it](./docs/play.md) - How to play the game
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At the moment (march 2021) the game starts, you can select any character and run around Act1 town.
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You can also open any of the game's panels.
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### For Developers
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Much work has been made in the background, but a lot of work still has to be done for the game to be playable.
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* [Building](./docs/building.md) - Instructions for building the project
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* [Development](./docs/development.md) - Instructions for developers who want to contribute
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* [Profiling](.docs/profiling.md) - Debug performance issues
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* [Debugging](.docs/debug.md) - Common errors and pitfalls
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Feel free to contribute!
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### For Contributors
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## Building
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To pull the project down, run `go get github.com/OpenDiablo2/OpenDiablo2`
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On windows this folder will most likely be in `%USERPROFILE%\go\src\github.com\OpenDiablo2\OpenDiablo2`
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In the root folder, run `go get -d` to pull down all dependencies.
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To run the project, run `go run .` from the root folder.
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You can also open the root folder in VSCode. Make sure you have the `ms-vscode.go` plugin installed.
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### Linux
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There are several dependencies which need to be installed additionally.
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To install them you can use `./build.sh` in the project root folder - this script takes care of the installation for you.
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## Contributing
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If you find something you'd like to fix that's obviously broken, create a branch, commit your code, and submit a pull request. If it's a new or missing feature you'd like to see, add an issue, and be descriptive!
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If you'd like to help out and are not quite sure how, you can look through any open issues and tasks, or ask
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for tasks on our discord server.
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**As of Oct. 26, 2020 we will no longer be accepting pull requests that introduce lint errors.**
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We use `golangci-lint` to catch lint errors, and we require all contributors to install and use
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it. Installation instructions can be found [here](https://golangci-lint.run/usage/install/).
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## VS Code Extensions
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The following extensions are recommended for working with this project:
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* ms-vscode.go
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* defaltd.go-coverage-viewer
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When you open the workspace for the first time, Visual Studio Code will automatically suggest these extensions for installation.
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Alternatively you can get to it by going to settings <kbd>Ctrl+,</kbd>, expanding `Extensions` and selecting `Go configuration`,
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then clicking on `Edit in settings.json`. Just paste that section where appropriate.
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## Configuration
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The engine is configured via the `config.json` file. By default, the configuration assumes that you have installed Diablo 2 and the
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expansion via the official Blizzard Diablo 2 installers using the default file paths. If you are not on Windows, or have installed
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the game in a different location, the base path may have to be adjusted.
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## Profiling
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There are many profiler options to debug performance issues. These can be enabled by suppling the following command-line option and are saved in the `pprof` directory:
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`go run . --profile=cpu`
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Available profilers:\
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`cpu` `mem` `block` `goroutine` `trace` `thread` `mutex`
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You can export the profiler output with the following command:\
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`go tool pprof --pdf ./OpenDiablo2 pprof/profiler.pprof > file.pdf`
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Ingame you can create a heap dump by pressing `~` and typing `dumpheap`. A heap.pprof is written to the `pprof` directory.
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You may need to install [Graphviz](http://www.graphviz.org/download/) in order to convert the profiler output.
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## Debugging
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### Layouts
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Layouts can show their boundaries and other visual debugging information when they render. Set `layoutDebug` to `true` in `d2core/d2gui/layout.go` to enable this behavior.
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## Roadmap
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There is an in-progress [project roadmap](https://docs.google.com/document/d/156sWiuk-XBfomVxZ3MD-ijxnwM1X66KTHo2AcWIy8bE/edit?usp=sharing),
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which will be updated over time with new requirements.
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* Design - High-level overview of the OpenDiablo2 org and its projects
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* [Current Status](./docs/status.md) - What you should focus on
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* [Roadmap](./docs/roadmap.md) - Planning ahead
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* FAQ - Common questions from new people to the project
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## Screenshots
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@ -132,3 +71,11 @@ which will be updated over time with new requirements.
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* Paul SIRAMY (http://paul.siramy.free.fr/\_divers/dt1\_doc/)
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* Other Specifications and general info
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* Various users on [Phrozen Keep](https://d2mods.info/home.php)
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## Legal Notice
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Please note that **this game is neither developed by, nor endorsed by Blizzard or its parent company Activision**.
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Diablo 2 and its content is ©2000 Blizzard Entertainment, Inc. All rights reserved. Diablo and Blizzard Entertainment are trademarks or registered trademarks of Blizzard Entertainment, Inc. in the U.S. and/or other countries.
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ALL OTHER TRADEMARKS ARE THE PROPERTY OF THEIR RESPECTIVE OWNERS.
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Panagiotis Georgiadis