forked from sent/waves
92 lines
2.7 KiB
JavaScript
92 lines
2.7 KiB
JavaScript
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// Import any other script files here, e.g.:
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// import * as myModule from "./mymodule.js";
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runOnStartup(async runtime =>
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{
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runtime.addEventListener("beforeprojectstart", () => OnBeforeProjectStart(runtime));
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});
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async function OnBeforeProjectStart(runtime)
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{
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// Code to run just before 'On start of layout' on
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// the first layout. Loading has finished and initial
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// instances are created and available to use here.
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var timestep = 1 / 60; // 60 Hz time step
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var accumulator = 0;
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requestAnimationFrame(function gameLoop(timestamp) {
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accumulator += (timestamp - lastFrameTimeMs) / 1000;
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while (accumulator > timestep) {
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accumulator -= timestep;
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}
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lastFrameTimeMs = timestamp;
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requestAnimationFrame(gameLoop);
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});
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runtime.addEventListener("tick", () => Tick(runtime));
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}
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var lastFrameTimeMs = 0;
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function Tick(runtime)
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{
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// Code to run every tick
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getScreenRefreshRate(function(FPS){
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//console.log(`${FPS} FPS`);
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runtime.globalVars.ScnRefreshRate = FPS;
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//console.log("FPS = "+runtime.globalVars.ScnRefreshRate);
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});
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}
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/**
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* Allows to obtain the estimated Hz of the primary monitor in the system.
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*
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* @param {Function} callback The function triggered after obtaining the estimated Hz of the monitor.
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* @param {Boolean} runIndefinitely If set to true, the callback will be triggered indefinitely (for live counter).
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*/
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function getScreenRefreshRate(callback, runIndefinitely){
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let requestId = null;
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let callbackTriggered = false;
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runIndefinitely = runIndefinitely || false;
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if (!window.requestAnimationFrame) {
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window.requestAnimationFrame = window.mozRequestAnimationFrame || window.webkitRequestAnimationFrame;
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}
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let DOMHighResTimeStampCollection = [];
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let triggerAnimation = function(DOMHighResTimeStamp){
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DOMHighResTimeStampCollection.unshift(DOMHighResTimeStamp);
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if (DOMHighResTimeStampCollection.length > 10) {
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let t0 = DOMHighResTimeStampCollection.pop();
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let fps = Math.floor(1000 * 10 / (DOMHighResTimeStamp - t0));
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if(!callbackTriggered){
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callback.call(undefined, fps, DOMHighResTimeStampCollection);
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}
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if(runIndefinitely){
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callbackTriggered = false;
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}else{
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callbackTriggered = true;
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}
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}
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requestId = window.requestAnimationFrame(triggerAnimation);
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};
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window.requestAnimationFrame(triggerAnimation);
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// Stop after half second if it shouldn't run indefinitely
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if(!runIndefinitely){
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window.setTimeout(function(){
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window.cancelAnimationFrame(requestId);
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requestId = null;
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}, 500);
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}
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} |