TRUSS BUSTER

An endless 3D physics demolition game. A round platform spins; blocks ride it; you knock them off with a cannon — forever. Gold recharges your shots, gray junk clogs the deck, and stuck cannonballs become 12‑sided bombs you can set off to clear a jam. There's a global leaderboard. How far can you get?

▶ Play in your browser: https://tettou771.github.io/demo-trussBuster2/

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🛠️ Built with TrussC

This whole game — the 3D rendering, input, the chiptune sound effects and music (generated at runtime, zero audio files), the bitmap‑font HUD, and the one‑command WebGPU/WebAssembly export that lets it run in a browser — is built on TrussC, a lightweight creative‑coding framework I'm building: an openFrameworks‑like API implemented simply in modern C++ on top of sokol.

No engine, no editor — just a small framework and a few hundred lines of game code. Physics is Jolt via the bundled tcxPhysics addon. The global leaderboard is a tiny Cloudflare Worker + KV. The same source compiles to a native macOS/Windows/Linux app and to the browser.

If you like what you see, TrussC is the thing that made it easy. 😎

How to play

Knock every scoring block off the spinning deck and a fresh wave drops in — it never ends, it just gets harder.

• Gold blocks glint and recharge the cannon (+5 shots). They're your lifeline.
• Gray junk blocks score nothing and just clog the deck; they get heavier and more common the longer you survive.
• A cannonball that comes to rest on the deck stays as an armed bomb. The next shot that grazes it detonates it and scatters the nearby blocks — your escape hatch when the deck jams.
• Out of shots with nothing in flight = game over. Beat the world record and you get to enter your initials.

Input	Action
Click / tap	start (and continue after game over)
← → ↑ ↓	aim
hold SPACE → release	charge & fire (release in the white zone for a MAX shot)
POST ON X	tweet your run (score + link) on game over

On phones the controls switch to an on‑screen d‑pad + FIRE button automatically.

Build & run

Built and managed with trusscli (TrussC's project tool):

trusscli run            # native build + launch
trusscli build --web    # WebGPU/wasm -> bin/trussBuster2.{html,js,wasm,data}

The world leaderboard lives in worldscore-worker/ (a Cloudflare Worker + KV). Score POSTs are signed (sha256(salt:score:initials)) so casual fakes are rejected; the salt is a Worker secret + a gitignored src/Secret.h (copy src/Secret.h.example).

Under the hood

• Rotating deck — a kinematic cylinder spun a little each frame; Jolt's MoveKinematic derives the angular velocity, so blocks are carried around by friction, just like real objects on a turntable.
• Bombs — a settled ball is removed and re‑spawned as a cube‑collider body (cubes sit still on the deck where round shapes roll off) rendered as a pulsing 12‑sided die.
• Audio — every sound effect and the looping BGM are synthesized at runtime with TrussC's ChipSound. No asset files.
• Cross‑platform — one codebase, native + browser. The leaderboard fetch/share use the browser's fetch on web and no-op natively.

Made with TrussC · physics by Jolt.