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Navigate the map with game-like controls

In this example, the user can press their keyboard's arrow keys to move around the map with game-like controls.

The map uses panBy to move forward and backward, and easeTo to move left and right.

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Navigate the map with game-like controls</title>
<meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no" />
<script src="https://cdn.ndrive.com/nmapsgl/v.1.6.8/nmaps-gl.js"></script>
<link href="https://cdn.ndrive.com/nmapsgl/v.1.6.8/nmaps-gl.css" rel="stylesheet" />
<style>
body { margin: 0; padding: 0; }
#map { position: absolute; top: 0; bottom: 0; width: 100%; }
</style>
</head>
<body>
<div id="map"></div>
<script>
// TO MAKE THE MAP APPEAR YOU MUST ADD YOUR ACCESS TOKEN
nmapsgl.accessToken = '<your access token here>';
const map = new nmapsgl.Map({
container: 'map',
style: 'Dark',
center: [-87.6298, 41.8781],
zoom: 17,
bearing: -12,
pitch: 60,
interactive: false
});
// pixels the map pans when the up or down arrow is clicked
const deltaDistance = 100;
// degrees the map rotates when the left or right arrow is clicked
const deltaDegrees = 25;
function easing(t) {
return t * (2 - t);
}
map.on('load', () => {
map.getCanvas().focus();
map.getCanvas().addEventListener(
'keydown',
(e) => {
e.preventDefault();
if (e.which === 38) {
// up
map.panBy([0, -deltaDistance], {
easing: easing
});
} else if (e.which === 40) {
// down
map.panBy([0, deltaDistance], {
easing: easing
});
} else if (e.which === 37) {
// left
map.easeTo({
bearing: map.getBearing() - deltaDegrees,
easing: easing
});
} else if (e.which === 39) {
// right
map.easeTo({
bearing: map.getBearing() + deltaDegrees,
easing: easing
});
}
},
true
);
});
</script>
</body>
</html>