let sUserAgent = navigator.userAgent.toLowerCase();
window.isTouchDevice = [
    "android", "ucweb",
    "iphone os", "ipad", "ipod",
    "windows phone os", "windows ce", "windows mobile",
    "midp", "symbianos", "blackberry", "hpwos", "rv:1.2.3.4",
].some(s => sUserAgent.includes(s));
// for iPadOS
if (!isTouchDevice && sUserAgent.includes("safari") && sUserAgent.includes("version")) {
    if (!sUserAgent.includes("iphone") && "ontouchend" in document)
        window.isTouchDevice = true;
}

import { isWebGL2Context } from "./utils/isWebGL2Context.js";
window.isSupportWebGL2 = (() => {
    let ctx = null;
    try { ctx = document.createElement("canvas").getContext("webgl2"); }
    catch(e) { ctx = null; }
    return isWebGL2Context(ctx);
})();