Unive.rs — the ultimate terminal-based sandbox for simulating, breaking, and bending the laws of the universe.
Built in Rust. Powered by ratatui.
- 🌌 Interactive Solar System — Realistic orbits, all major planets, and the Sun, rendered with emoji for maximum cosmic vibes.
- 🧲 Dynamic Gravity — Change the gravitational constant on the fly. Make the universe collapse or float apart!
- 💥 Collisions & Particle Explosions — Planets can smash into each other, exploding into clouds of particles that obey gravity.
- 🪐 Barnes-Hut Physics — O(N log N) simulation for massive systems. Switch between brute-force and Barnes-Hut at runtime.
- 🎮 Full Terminal UI — Zoom, pan, focus, toggle trails, see velocity vectors, and get detailed info on any body.
- ⚡ Real-Time & Time Warp — Simulate from real seconds to cosmic years in a blink.
- 👾 Emoji Planets — Every planet and the Sun has its own emoji. Particles are tiny dots.
| Key | Action |
|---|---|
| Space | Pause/Resume simulation |
| 1-6 | Set simulation speed (1=slow, 6=cosmic) |
| +/- | Zoom in/out |
| ←/→ | Change focus to prev/next body |
| i | Toggle detailed info panel |
| t | Toggle orbit trails |
| v | Toggle velocity vectors |
| r | Reset simulation |
| c | Clear trails |
| b | Switch physics engine (Direct/Barnes-Hut) |
| [ / ] | Decrease/Increase gravity (G) |
| q | Quit |
- Newtonian Gravity (Direct N², for small systems)
- Barnes-Hut Algorithm (O(N log N), for big chaos)
- Realistic Collisions — Planets have physical radii, collisions are based on actual sizes, not just positions.
- Particle Explosions — When planets collide, they explode into dozens of particles, each with its own trajectory and lifetime.
All math and physics are explained in Mathematics.md.
git clone https://github.com/Raumberg/univers.git
cd univers
cargo run --release- Stable orbits for all planets
- Realistic collisions and particle explosions
- Barnes-Hut physics engine
- Emoji rendering for all bodies
- Dynamic gravity control
- Black holes and accretion disks
- Simplified General Relativity
- Save/load custom universes
- Mouse controls (drag & drop planets)
- More chaos!
- For questions, ideas, or collabs — see my profile.
- PRs, issues, and cosmic ideas are welcome!
Feel free to fork, hack, and make the universe even weirder.
Unive.rs — because the universe is too boring if you can't break it.