Maxnest0x0/gardn — reverse-engineered prompt

Build me a self hostable multiplayer browser PvP game inspired by the old florr.io experience. I want players to open it in the browser, join a live arena, move around smoothly, fight other players and mobs, and see simple animated game objects rendered on a canvas.

Please make the core game logic in C++ with a shared simulation model so the server and client stay consistent. The client should compile to WebAssembly and use Canvas2D for rendering, with the UI drawn in the game instead of relying on normal HTML widgets except where text input is really needed. The server should be able to run the multiplayer simulation, handle collisions efficiently, and send updates to connected players.

Keep it open source and easy to run on my own machine or server. Include clear setup instructions, build scripts, and a basic deployment path. Look up current docs online if you need to.