c4c9574946
Substitui a simulação procedural pelo mapa "Gaia's sky in colour" (ESA/Gaia/DPAC, CC BY-SA 3.0 IGO): tools/build_skymap.py baixa o original 8000x4000 em projeção Hammer, reprojeta para plate carrée e gera milkyway.jpg (3072x1536). O dancer.html amostra a textura por pixel em (l,b) galácticas reais — grade pré-computada por resolução/ latitude, com só a rotação sideral variando por passo (matriz E2G·Rz combinada). Nível de preto remove o véu de fundo do mapa; extinção e clarão aplicados por pixel. Remove mwGlow/mwGrain/poeira procedural. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_015HtPHsTnDcLVSCiF5FGHZj
64 lines
3.3 KiB
Markdown
64 lines
3.3 KiB
Markdown
# CLAUDE.md
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This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
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## What this is
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A KDE Plasma 6 wallpaper plugin — a dancing retrowave robot (DANCEBOT-9000) that reacts to currently playing music via `playerctl`. No build step, no dependencies to install; the plugin is deployed directly.
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Plugin ID: `com.vini.dancingcharacter`
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Install path: `~/.local/share/plasma/wallpapers/com.vini.dancingcharacter`
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## Deploy / test cycle
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```bash
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# Install (or reinstall after edits)
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./install.sh
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# Remove
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./uninstall.sh
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```
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After install, activate via: Right-click desktop → Configure Desktop and Wallpaper → Wallpaper Type → Dancing Character.
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Plasma hot-reloads QML changes when you reinstall; for HTML/CSS/JS changes you may need to switch away and back to the wallpaper type to force a reload.
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**Runtime requirement**: `QtWebEngine` QML module must be installed (e.g., `qml6-module-qtwebengine` on Debian/Ubuntu). `playerctl` must be running for the music ticker to show track info.
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## Architecture
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```
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plugin/
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metadata.json # KPackage/KPlugin descriptor for Plasma 6
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contents/ui/
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main.qml # Plasma WallpaperItem — hosts everything
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dancer.html # Self-contained animation (HTML + CSS + JS)
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starcatalog.js # Generated star data (Yale BSC) — see tools/build_catalog.py
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milkyway.jpg # Gaia all-sky map (ESA/Gaia/DPAC, CC BY-SA 3.0 IGO) — see tools/build_skymap.py
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tools/
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build_catalog.py # Regenerates starcatalog.js from the Yale Bright Star Catalog
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build_skymap.py # Regenerates milkyway.jpg (Hammer -> plate carrée) from ESA's Gaia map
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```
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### main.qml — the Plasma host
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- Declares a `WallpaperItem` with a full-screen `WebEngineView` pointed at `dancer.html`.
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- A `Plasma5Support.DataSource` with `engine: "executable"` runs `playerctl metadata` every 2 s and injects the result into the page with `webView.runJavaScript("updateMusic(...)")`.
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- JavaScript is enabled; local file access and local storage are on/off respectively.
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### dancer.html — the visual layer
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Pure HTML/CSS/JS, no external dependencies. All visuals are self-contained:
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| Layer | Technique |
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| Realistic sky (stars + Milky Way) | `<canvas>`; real-time alt-az projection of `starcatalog.js` (2,887 Yale BSC stars) + per-pixel sampling of the real Gaia all-sky map (`milkyway.jpg`) in galactic coords, for the configured lat/long (default Toledo-PR), view facing east. Static layer pre-rendered offscreen, bright stars twinkle per frame; reprojects every 30 s. Debug: `window.__skyTimeOffset` (ms) fast-forwards the sky |
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| Nebula blobs, grid floor, horizon | CSS animations |
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| DANCEBOT-9000 robot | Pure CSS (divs + `@keyframes`) |
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| Chest EQ bars & VU meter | JS-driven `requestAnimationFrame` |
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| Music ticker | DOM text set by `updateMusic(artist, title)` (called from QML) |
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| Dance style cycling | `data-dance` attribute on `<body>`, toggled by JS every 8 s |
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**Tempo anchor**: everything is keyed to 120 BPM (`BEAT_MS = 500 ms`). CSS animation durations for the robot parts use multiples/fractions of 0.5 s, 1 s, or 2 s.
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**Dance styles** (cycle order): `bounce → wave → shuffle → moonwalk → spin`. CSS selectors like `[data-dance="spin"] .robot { ... }` override the default animations via `!important`.
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