matrix-rain
Authentic green digital rain terminal simulator with half-width Katakana, in-place mutations, 24-bit Truecolor gradients, and zero terminal leaks.
Installation via Homebrew
Install directly via Homebrew using the official tap:
brew install smford/tap/matrix-rain
Or tap first, then install:
brew tap smford/tap && brew install matrix-rain
$ matrix-rain -color green -fps 60 -density 70
// Rain streaming... Press 'c' to cycle themes, Space to pause, 'q' to exit
Engine Architecture & Reliability
🛡️ Zero Terminal Glitches
Restores raw mode, alternate screen buffer, and cursor visibility on SIGINT, SIGTERM, or panics.
⚡ Ultra-Low Resource Usage
ANSI color escape deduplication and single-buffer batch writes reduce I/O by >80%.
📐 Dynamic Window Resizing
Traps POSIX SIGWINCH signals to adapt columns instantaneously to window changes.
🎨 Authentic Movie Glyph Engine
Half-width Katakana (`ｦ-ﾝ`), in-place cascade mutations, and 6 vibrant Truecolor presets.
Interactive Keyboard Controls
| Key | Action |
|---|---|
q / Esc / Ctrl+C |
Exit cleanly and restore terminal |
Space |
Pause / Resume rain animation |
c |
Cycle palettes (Green, Cyan, Amber, Red, White, Rainbow) |
+ / - |
Increase or decrease drop density |
r |
Reset and re-spawn all rain streams |