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aframe-look-controls-z

v2.0.0

Published

Drop-in replacement for A-Frame core look-controls. In magic-window mode, the virtual horizon stays parallel to the real horizon.

Downloads

18

Readme

aframe-look-controls-z

An A-Frame WebVR component. Drop-in replacement for core look-controls, except in magic-window mode, the virtual horizon stays parallel to the real horizon. (Rotation around the z-axis is tracked, like the x- and y-axes.)

Useful when flying, as in Elfland Glider

live example scene

You may also want to lock the screen orientation, which usually requires first going to fullscreen mode.

Basic Usage

<script src="https://unpkg.com/aframe-look-controls-z@^2.0.0/look-controls-z.js"></script>

<a-entity position="0 1.6 0" camera look-controls-z></a-entity>

Screen Orientation Lock and Fullscreen Mode

Call goFullscreenLandscape() on a user gesture, such as a mouse click:

function goFullscreenLandscape() {
    if (!isMagicWindow()) {return;}

    let canvasEl = document.querySelector('canvas.a-canvas');
    let requestFullscreen =
        canvasEl.requestFullscreen ||
        canvasEl.webkitRequestFullscreen ||
        canvasEl.mozRequestFullScreen ||  // The capitalized `S` is not a typo.
        canvasEl.msRequestFullscreen;
    let promise;
    if (requestFullscreen) {
        promise = requestFullscreen.apply(canvasEl);
    }
    if (!(promise && promise.then)) {
        promise = Promise.resolve();
    }
    promise.then(lockLandscapeOrientation, lockLandscapeOrientation);
}

function lockLandscapeOrientation() {
    if (screen.orientation && screen.orientation.lock) {
        screen.orientation.lock("landscape").then(response => {
            console.log("screen orientation locked:", response);
        }).catch(err => {
            console.warn("screen orientation didn't lock:", err);
        });
    }
}


function isMagicWindow() {
    return AFRAME.utils.device.isMobile () &&
        ! AFRAME.utils.device.isGearVR() &&
        // ! AFRAME.utils.device.isOculusGo() &&
        ! AFRAME.scenes[0].is("vr-mode")
}

Properties

See look-controls documentation