gibribbon

GIBRIBBON (video) — a Vib-Ribbon spiritual successor rendered with DOOM shareware-WAD sprites. A single white vector "ribbon"/ground line scrolls right→left on black (Vib-Ribbon's exact line-art grammar: the ground dips into a pit V for a LOOP, rises into a hump for a JUMP), while imp (TROO*) and zombie/former-human (POSS*) enemies — REAL sprites decoded from the same DOOM1.WAD the DOOM module uses — ride the ribbon in from the right. The player character is the green DOOM marine (PLAY*). An overhead ABXY prompt strip shows the button each upcoming event needs. FOUR events map to the four ABXY buttons: LOOP (A), JUMP (B), IMP SPAWN (X), ZOMBIE SPAWN (Y); a correct, in-window press clears the obstacle (marine loops/jumps) or fires-and-kills the enemy (it plays its DOOM death animation). Missing an event degrades the marine down a DOOM-flavoured health ladder (super → healthy → wounded → critical → GAME OVER); clean streaks recover rungs and reach a SUPER state. Inputs: cv1..cv4 (modsignal — drive event GENERATION from slow Synesthesia envelopes; each channel maps to one event kind), clock (the 1× scroll/tempo tick), gate (the beat — biases which CV channel spawns), x + y (joystick axes), and four ABXY button gates a / b / x_btn / y_btn (named to disambiguate from the x/y axes). Outputs: out (video), evt_hit / evt_miss / evt_fire / evt_kill / evt_gameover (10 ms gate pulses), and health_cv (marine vitality 0..1). Event generation is a PURE deterministic function of the inputs (gibribbon-events.ts) with all CV→event thresholds in a single tunable GIB_TUNING block; sprite extraction is a PURE WAD picture/PLAYPAL decoder (wad-sprites.ts) run at load time. DOOM1.WAD stays gitignored + fetched like the DOOM module; without it the game falls back to line-art placeholder figures so it still plays. DOOM shareware terms apply (same as the DOOM module).

A Vib-Ribbon-style rhythm side-scroller rendered as a patchable VIDEO source: a single white vector ribbon scrolls right-to-left on black, obstacles deform the line (loop=a pit-V dip, jump=a hump) while enemies (imps/zombies) ride it in as real DOOM shareware-WAD sprites (with a wireframe line-art fallback when DOOM1.WAD is absent — the card shows a "line-art (no WAD)" badge). A DOOM marine stands left-of-centre at the judgement point; you clear each event by pulsing its mapped ABXY button within a timing window as it arrives (loop=A, jump=B, imp=X, zombie=Y). A fixed top "lookahead lane" shows the next four buttons left-to-right (nearest first) so the queue is readable. Hits score (combo-multiplied, cap x8) and can heal or reach SUPER; misses degrade the marine down a DOOM health ladder (super/healthy/wounded/critical/dead) to GAME OVER. Drive it three ways: AUTOPLAY (default ON) runs an internal ~0.42 s-beat clock so a freshly-dropped card self-plays with synthesized rotating CV; patching an external CLOCK + GATE + CV1-4 takes over for musical mode (each clock edge advances a beat and spawns from whichever eligible CV channel is hottest above threshold) and suppresses autoplay for ~1.5 s; and keyboard play (click the card to focus, then F/D/J/K or arrow keys = A/B/X/Y, R = restart). Patch the X/Y axes to aim, and the event gate outputs feed the cross-domain video-to-audio bridge so hits/kills/game-over can trigger synths. (The on-card preview is a fixed-size screen, not resizable; RESET/RESTART are DOM buttons, not params.)

the faceplate

inputs

outputs

params

controls

source

gibribbon.ts on GitHub.