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tennis training

A free browser game — play it in your browser, no install. First-person tennis in the browser where your phone is the racket. Gyroscope motion controls, Wii Sports style. three.js + WebSockets, no install.

by @doncebay · doncebay/tennis-training on GitHubLANG JavaScript★ 2HOSTED ON DONCEBAY.GITHUB.IOUPDATED 26 Sep 2026

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Controls: Serve: one swing tosses the ball, a second swing hits it. Best at the very top

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From the README

First-person tennis in the browser, where your phone is the racket. Wii Sports-style motion controls with nothing to install: the game runs on your computer or TV, and your phone's gyroscope streams the racket's orientation and your swings over Wi-Fi in real time.

Open it on your computer, scan the QR code with your phone, and swing. Nothing to install.

mirrored by the 3D racket, so it moves exactly like your hand.

velocity (the moment of maximum racket speed), and swing speed sets the power.

decides the direction: early = cross-court, late = down the line.

Read the full README on GitHub →

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