Riffle
A reactive DendryNexus game engine for SvelteKit: cards, decks, difficulty checks, quality systems, and arena topology, all built on Svelte 5 runes.
About
The reactive DendryNexus engine outgrew the Norse duel it was written for and became Riffle: a reactive game engine for SvelteKit built on Svelte 5 runes with no Svelte UI dependencies of its own. It implements the full StoryNexus-style card, deck, and hand system (draw, play, and discard across multiple hands with pinned cards and per-hand state), a quality system of named attributes with typed display modes and min/max clamping, and broad and narrow difficulty checks with configurable scalers and human-readable labels from almost impossible to straightforward. A concentric-circle arena topology adds spatial structure across inner, middle, and outer rings (13 zones) with adjacency relationships, and content rendering covers quality interpolation, conditional text, and markdown-style formatting.
Highlights
- Card/deck/hand system: draw, play, discard across multiple hands with pinned cards, max hand sizes, and per-hand state.
- Difficulty checks: broad and narrow curves with configurable scalers, human-readable labels (almost impossible → straightforward), roll tracking.
- Quality system: named attributes with typed display (integer, fudge, on/off, word scale, raw) and min/max clamping.
- Arena topology: concentric-circle spatial system (inner/middle/outer rings, 13 zones) with adjacency relationships.
- Content rendering: quality interpolation, conditional text, markdown-style formatting.
By the numbers
- Commits
- 2
- Lines added
- +1,269
- Lines removed
- −1
- Source files
- 1,179