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🎨 Palette: Add explicit controls and a11y score announcements to Mario Game #167

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🎨 Palette: Add explicit controls and a11y score announcements to Mario Game #167

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3 changes: 3 additions & 0 deletions .Jules/palette.md
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## 2025-03-23 - Game Key Scrolling
**Learning:** Browsers natively scroll the page when users press Space or Arrow keys. When building a web-based game, this creates a frustrating UX where the game viewport jumps around while playing.
**Action:** Always call `e.preventDefault()` on keydown events for typical game controls ("Space", "ArrowUp", etc.) when the focus is on a game container or the body.
## 2026-05-19 - Screen Reader Support for Real-Time Game UI Updates
**Learning:** Dynamic UI elements in HTML5 games (like a live score counter) are completely invisible to screen readers by default.
**Action:** Always add `aria-live="polite"` and `aria-atomic="true"` to game status elements (scores, health, timers) so screen readers automatically announce changes.
1 change: 0 additions & 1 deletion requirements.txt
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numpy
pandas
requests
venv
12 changes: 11 additions & 1 deletion src/views/mario-game.njk
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font-size: 20px;
font-family: Arial;
}

#controls-hint {
position: absolute;
top: 40px;
left: 10px;
color: rgba(255, 255, 255, 0.8);
font-size: 14px;
font-family: Arial;
}
</style>
</head>

<body>

<div id="game">
<div id="score">Score: 0</div>
<div id="score" aria-live="polite" aria-atomic="true">Score: 0</div>
<div id="controls-hint">Press Space or ↑ to jump</div>
<div id="mario"></div>
<div class="ground"></div>
</div>
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