A convenience utility library to take over the mouse cursor ("pointer lock") in the browser with JavaScript

Mon, Aug 24, 2015 - 1:03am -- Isaac Sukin

Two years ago when I was writing my book about building 3D browser games, I was spending a lot of time writing first person games in JavaScript. First person games in particular involve a lot of fast, precise motion, which makes "pointer lock" essential. "Pointer lock" is when a program takes over the mouse cursor, tracking mouse movement on its own and displaying its own cursor if needed (usually locked to the middle of the screen, hence the name).

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