Siphon Beam

A Bopl Battle ability. It charges off other people.

There is no cooldown. Instead you carry a dashed circle, and it fills only while other players are standing inside it — faster the more of them there are. Nobody inside and it simply pauses; you never lose progress, you just stop making any. The ring itself is the meter.

Full, it buys one shot. Hold to aim and release to fire a beam that pierces every platform on the map. You are rooted while aiming and the shot locks to one of eight compass directions — that is deliberate, because free aim gave mouse players a large advantage over controllers.

• Charge: 3 seconds of one player inside the circle; two players halve it
• Cooldown: none — the charge is the whole cost
• Aiming: eight fixed directions, rooted while you aim
• Beam: passes through every platform
• Dependencies: BepInEx only

Installing

Install with Thunderstore Mod Manager or r2modman, then launch the game from the mod manager. The ability appears in the ability-select grid.

By hand: drop SiphonBeam.dll into BepInEx/plugins/SiphonBeam/.

Playing online

Private lobbies work — invite a friend through Steam as usual. Both players need the same mods installed, or the ability lists won't line up. Thunderstore can export your whole profile as a code for them to import.

Public matchmaking is disabled by the game whenever any mod is loaded. That's Bopl's rule, not this mod's.

Building from source

Requires the .NET SDK and a Steam copy of Bopl Battle.

dotnet build -c Release

The paths to the game and to your mod profile are set at the top of SiphonBeam.csproj — change them to match your machine. Close the game before building; Windows locks the DLL while it is loaded.

Artwork lives in Resources/ and is compiled into the DLL, so PNG edits only take effect after a rebuild.

License

MIT