@geckos.io/snapshot-interpolation/lib/vault.js

A Snapshot Interpolation library for Real-Time Multiplayer Games

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Vault = void 0;
/** A save place to store your snapshots. */
class Vault {
    constructor() {
        this._vault = [];
        this._vaultSize = 120;
    }
    /** Get a Snapshot by its ID. */
    getById(id) {
        var _a;
        return (_a = this._vault.filter(snapshot => snapshot.id === id)) === null || _a === void 0 ? void 0 : _a[0];
    }
    /** Clear this Vault */
    clear() {
        this._vault = [];
    }
    get(time, closest) {
        var _a;
        // zero index is the newest snapshot
        const sorted = this._vault.sort((a, b) => b.time - a.time);
        if (typeof time === 'undefined')
            return sorted[0];
        for (let i = 0; i < sorted.length; i++) {
            const snap = sorted[i];
            if (snap.time <= time) {
                const snaps = { older: sorted[i], newer: sorted[i - 1] };
                if (closest) {
                    const older = Math.abs(time - snaps.older.time);
                    const newer = Math.abs(time - ((_a = snaps.newer) === null || _a === void 0 ? void 0 : _a.time));
                    if (isNaN(newer))
                        return snaps.older;
                    else if (newer <= older)
                        return snaps.older;
                    else
                        return snaps.newer;
                }
                return snaps;
            }
        }
        return;
    }
    /** Add a snapshot to the vault. */
    add(snapshot) {
        if (this._vault.length > this._vaultSize - 1) {
            // remove the oldest snapshot
            this._vault.sort((a, b) => a.time - b.time).shift();
        }
        this._vault.push(snapshot);
    }
    /** Get the current capacity (size) of the vault. */
    get size() {
        return this._vault.length;
    }
    /** Set the max capacity (size) of the vault. */
    setMaxSize(size) {
        this._vaultSize = size;
    }
    /** Get the max capacity (size) of the vault. */
    getMaxSize() {
        return this._vaultSize;
    }
}
exports.Vault = Vault;
//# sourceMappingURL=vault.js.map