@hastearcade/snowglobe/lib/dist/esm/timestamp.js

A TypeScript port of CrystalOrb, a high-level Rust game networking library

import { remEuclid } from './math.js';
export const MIN = -32768;
export const MAX = 32767;
const i16 = new Int16Array(1);
export function make(value = 0) {
    i16[0] = value;
    return i16[0];
}
// timestamp
export function fromSeconds(seconds, timestampSeconds) {
    return make(makeFromSecondsFloat(seconds, timestampSeconds));
}
export function comparableRangeWithMidpoint(timestamp) {
    const maxDistanceFromMidpoint = MAX / 2;
    return {
        min: make(timestamp - maxDistanceFromMidpoint),
        max: make(timestamp + maxDistanceFromMidpoint)
    };
}
export function acceptableTimestampRange(baseline, timestamp) {
    const { min, max } = comparableRangeWithMidpoint(baseline);
    return cmp(timestamp, min) >= 0 && cmp(timestamp, max) < 0;
}
export function increment(timestamp) {
    return make(timestamp + 1);
}
export function asSeconds(timestamp, timestampSeconds) {
    return timestamp * timestampSeconds;
}
export function add(timestamp, rhs) {
    return make(timestamp + rhs);
}
export function sub(timestamp, rhs) {
    return make(timestamp - rhs);
}
export function cmp(timestamp1, timestamp2) {
    const difference = sub(timestamp1, timestamp2);
    if (difference < 0) {
        return -1;
    }
    if (difference === 0) {
        return 0;
    }
    return 1;
}
// float timestamp
export function toFloat(timestamp) {
    return +timestamp;
}
export function makeFromUnwrappedFloat(frames) {
    return (remEuclid(frames + Math.pow(2, 15), Math.pow(2, 16)) -
        Math.pow(2, 15));
}
export function makeFromSecondsFloat(seconds, timestampSeconds) {
    return makeFromUnwrappedFloat(seconds / timestampSeconds);
}
export function ceil(timestamp) {
    return make(Math.ceil(timestamp));
}
export function floor(timestamp) {
    return make(Math.floor(timestamp));
}
export function subFloat(timestamp, rhs) {
    return makeFromUnwrappedFloat(timestamp - rhs);
}
// timestamped
export function set(timestamped, timestamp) {
    ;
    timestamped.timestamp = timestamp;
    return timestamped;
}
export function get(timestamped) {
    return timestamped.timestamp;
}
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