wewindy

Pure ESM package

The package linked to from here is now pure ESM. It cannot be require()'d from CommonJS.

This means you have the following choices:

Use ESM yourself. (preferred)
Use import foo from 'foo' instead of const foo = require('foo') to import the package. You also need to put "type": "module" in your package.json and more. Follow the below guide.
If the package is used in an async context, you could use await import(…) from CommonJS instead of require(…).
Stay on the existing version of the package until you can move to ESM.

	export interface IGeoJson {
	type: 'Feature' \| 'Point' \| 'LineString' \| 'Polygon' \| 'MultiPoint' \| 'MultiLineString' \| 'MultiPolygon' \| 'GeometryCollection';
	coordinates?: any[];
	geometry?: IGeoJson;
	geometries?: IGeoJson[];
	crs?: string \| {
	type: string;
	properties: {
	name: string;
	};

	fetch('./some-region.geojson').then(res => res.json()).then(data => {
	let features = data.features;
	let positionArray = [];

	// 获取区域的经纬度坐标
	for (let i = 0; i < features[0].geometry.coordinates[0].length; i++) {
	let coor = features[0].geometry.coordinates[0][i];
	positionArray.push(coor[0]);
	positionArray.push(coor[1]);
	}

	uniform vec2 u_resolution;

	// 接受一个二维向量，返回一个伪随机值
	float rand(const vec2 seed) {
	float t = dot(vec2(12.9898, 78.233), seed);
	return fract(sin(t) * (4375.85453 + t));
	}

	void main() {
	vec2 st = gl_FragCoord.xy / u_resolution.xy;

	type Point = [number, number, number?]

	const isCCW = (p1: Point, p2: Point, p3: Point) => {
	return (p2[0] - p1[0]) * (p3[1] - p1[1]) - (p2[1] - p1[1]) * (p3[0] - p1[0]) > 0
	}

	const isMobile = /android\|avantgo\|blackberry\|blazer\|compal\|elaine\|fennec\|hiptop\|iemobile\|ip(hone\|od\|ad)\|iris\|kindle\|lge \|maemo\|midp\|mmp\|opera m(ob\|in)i\|palm(os)?\|phone\|p(ixi\|re)\/\|plucker\|pocket\|psp\|symbian\|treo\|up\.(browser\|link)\|vodafone\|wap\|windows (ce\|phone)\|xda\|xiino/i.test(navigator.userAgent);
	if (isMobile) {
	location.replace('手机页面');
	} else {
	location.replace('PC页面');
	}

	/*
	作者：菜鸟码农Java笔记
	链接：https://www.zhihu.com/question/485560131/answer/2116400654