outrun

Summary

Outrun is a custom server for Sonic Runners, reverse engineered from the Sonic Runners Revival project.

Goals

• Implement all non debug endpoints as fulfilled by the original server
• Maintain speed throughout runtime
• Consume little resources for conservative deployment

Current functionality

Notable:

• Timed Mode
• Story Mode (Functional, in progress)
• Ring/Red Star Ring keeping
• Functional shop
• Character/Chao equipping
• Character leveling and progression
• Item/Chao roulette functionality (Functional, in progress)

Functional:

• Android and iOS support
• High score keeping
• Notifications (pending revamp)
• Ticker notices
• Small database size and memory footprint
• Low CPU usage
• Descriptive error reporting and handling

Building

1. Download and install Go 1.12 (project tested on Go 1.12.4)
2. Download and install Git (for go get)
3. Set your GOPATH environment variable
4. Open a terminal/command prompt
5. Use cd (Windows, Linux/macOS) to navigate to a directory of choice
6. Run go get github.com/fluofoxxo/outrun and wait until the command line returns
7. Run go build github.com/fluofoxxo/outrun and wait until the build is complete
8. Run the produced executable (outrun.exe on Windows, outrun on Linux/macOS)

Binary releases may be provided in more mature stages of the repository.

Modifying an APK to connect to your instance (from Windows)

1. Install dnSpy (dnSpy-netcore-win64.zip)
2. Install 7-Zip
3. Install ZipSigner on an Android device or emulator
4. Open a Sonic Runners v2.0.3 APK file with 7-Zip
5. Navigate to assets/bin/Data/Managed and extract all the DLL files to their own folder
6. Open Assembly-CSharp.dll in dnSpy
7. Open the class NetBaseUtil, and find the variable mActionServerUrlTable
8. Edit every string in the mActionServerUrlTable array to http://<IP>:<PORT>/ where is replaced by the IP for your instance and is replaced by the port for your instance (Default: 9001)
9. Repeat step 7 for mSecureActionServerUrlTable
10. If you have an assets server, use its IP and port to replace the values in mAssetURLTable and mInformationURLTable to http://<IP>:<PORT>/assets/ and http://<IP>:<PORT>/information/ respectively
11. Click File -> Save Module... and save the DLL file
12. Drag the newly saved Assembly-CSharp.dll back into assets/bin/Data/Managed in 7-Zip, confirming to overwrite if asked
13. Transfer the APK to an Android device and use ZipSigner to sign it
14. Install the APK

Misc.

Any pull requests deemed code improvements are strongly encouraged. Refactors may be merged into a different branch.

Palmbound (Public Development Server)

As of 1 September, 2019, an instance of this server named Palmbound is currently publicly accessible. App file downloads can be acquired by joining the Palmbound Download Discord server: https://discord.gg/eeQAe8R

Credits

Much thanks to:

• YPwn, whose closest point of online social contact I do not know, for creating and running the Sonic Runners Revival server upon which this project bases much of its code upon.
• @Sazpaimon for finding the encryption key I so desparately looked for but could not on my own.
• nacabaro (nacabaro#2138 on Discord) for traffic logging and the discovery of DaGuAr's asset archive.