128 lines
3.5 KiB
JavaScript
128 lines
3.5 KiB
JavaScript
// node_modules/framesync/dist/es/on-next-frame.mjs
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var defaultTimestep = 1 / 60 * 1e3;
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var getCurrentTime = typeof performance !== "undefined" ? () => performance.now() : () => Date.now();
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var onNextFrame = typeof window !== "undefined" ? (callback) => window.requestAnimationFrame(callback) : (callback) => setTimeout(() => callback(getCurrentTime()), defaultTimestep);
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// node_modules/framesync/dist/es/create-render-step.mjs
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function createRenderStep(runNextFrame2) {
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let toRun = [];
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let toRunNextFrame = [];
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let numToRun = 0;
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let isProcessing2 = false;
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let flushNextFrame = false;
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const toKeepAlive = /* @__PURE__ */ new WeakSet();
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const step = {
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schedule: (callback, keepAlive = false, immediate = false) => {
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const addToCurrentFrame = immediate && isProcessing2;
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const buffer = addToCurrentFrame ? toRun : toRunNextFrame;
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if (keepAlive)
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toKeepAlive.add(callback);
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if (buffer.indexOf(callback) === -1) {
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buffer.push(callback);
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if (addToCurrentFrame && isProcessing2)
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numToRun = toRun.length;
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}
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return callback;
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},
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cancel: (callback) => {
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const index = toRunNextFrame.indexOf(callback);
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if (index !== -1)
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toRunNextFrame.splice(index, 1);
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toKeepAlive.delete(callback);
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},
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process: (frameData) => {
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if (isProcessing2) {
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flushNextFrame = true;
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return;
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}
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isProcessing2 = true;
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[toRun, toRunNextFrame] = [toRunNextFrame, toRun];
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toRunNextFrame.length = 0;
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numToRun = toRun.length;
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if (numToRun) {
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for (let i = 0; i < numToRun; i++) {
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const callback = toRun[i];
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callback(frameData);
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if (toKeepAlive.has(callback)) {
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step.schedule(callback);
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runNextFrame2();
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}
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}
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}
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isProcessing2 = false;
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if (flushNextFrame) {
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flushNextFrame = false;
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step.process(frameData);
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}
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}
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};
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return step;
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}
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// node_modules/framesync/dist/es/index.mjs
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var maxElapsed = 40;
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var useDefaultElapsed = true;
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var runNextFrame = false;
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var isProcessing = false;
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var frame = {
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delta: 0,
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timestamp: 0
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};
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var stepsOrder = [
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"read",
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"update",
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"preRender",
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"render",
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"postRender"
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];
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var steps = stepsOrder.reduce((acc, key) => {
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acc[key] = createRenderStep(() => runNextFrame = true);
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return acc;
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}, {});
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var sync = stepsOrder.reduce((acc, key) => {
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const step = steps[key];
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acc[key] = (process, keepAlive = false, immediate = false) => {
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if (!runNextFrame)
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startLoop();
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return step.schedule(process, keepAlive, immediate);
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};
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return acc;
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}, {});
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var cancelSync = stepsOrder.reduce((acc, key) => {
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acc[key] = steps[key].cancel;
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return acc;
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}, {});
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var flushSync = stepsOrder.reduce((acc, key) => {
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acc[key] = () => steps[key].process(frame);
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return acc;
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}, {});
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var processStep = (stepId) => steps[stepId].process(frame);
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var processFrame = (timestamp) => {
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runNextFrame = false;
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frame.delta = useDefaultElapsed ? defaultTimestep : Math.max(Math.min(timestamp - frame.timestamp, maxElapsed), 1);
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frame.timestamp = timestamp;
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isProcessing = true;
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stepsOrder.forEach(processStep);
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isProcessing = false;
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if (runNextFrame) {
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useDefaultElapsed = false;
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onNextFrame(processFrame);
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}
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};
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var startLoop = () => {
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runNextFrame = true;
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useDefaultElapsed = true;
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if (!isProcessing)
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onNextFrame(processFrame);
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};
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var getFrameData = () => frame;
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var es_default = sync;
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export {
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cancelSync,
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flushSync,
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getFrameData,
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es_default
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};
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//# sourceMappingURL=chunk-F3MIBQYA.js.map
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