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chore: improve randomness of void storm missions (#2428)

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Instead of alternating the mission pool every hour, we now use sequentiallyUniqueRandomElement which should ensure that we don't duplicate any of the last x missions (x = 3 for Lith & Axi and x = 1 Meso & Neo).

Reviewed-on: OpenWF/SpaceNinjaServer#2428
Co-authored-by: Sainan <63328889+Sainan@users.noreply.github.com>
Co-committed-by: Sainan <63328889+Sainan@users.noreply.github.com>
This commit is contained in:
Sainan 2025-07-08 00:28:49 -07:00 committed by Sainan
parent 1545cdb8ce
commit d6145561fd
1 changed files with 29 additions and 20 deletions
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49
src/services/worldStateService.ts
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@ -971,25 +971,26 @@ const getCalendarSeason = (week: number): ICalendarSeason => {
// Not very faithful, but to avoid the same node coming up back-to-back (which is not valid), I've split these into 2 arrays which we're alternating between.
const voidStormMissionsA = {
VoidT1: ["CrewBattleNode519", "CrewBattleNode518", "CrewBattleNode515", "CrewBattleNode503"],
VoidT2: ["CrewBattleNode501", "CrewBattleNode534", "CrewBattleNode530"],
VoidT3: ["CrewBattleNode521", "CrewBattleNode516"],
const voidStormMissions = {
VoidT1: [
"CrewBattleNode519",
"CrewBattleNode518",
"CrewBattleNode515",
"CrewBattleNode503",
"CrewBattleNode509",
"CrewBattleNode522",
"CrewBattleNode511",
"CrewBattleNode512"
],
VoidT2: ["CrewBattleNode501", "CrewBattleNode534", "CrewBattleNode530", "CrewBattleNode535", "CrewBattleNode533"],
VoidT3: ["CrewBattleNode521", "CrewBattleNode516", "CrewBattleNode524", "CrewBattleNode525"],
VoidT4: [
"CrewBattleNode555",
"CrewBattleNode553",
"CrewBattleNode554",
"CrewBattleNode539",
"CrewBattleNode531",
"CrewBattleNode527"
]
};
const voidStormMissionsB = {
VoidT1: ["CrewBattleNode509", "CrewBattleNode522", "CrewBattleNode511", "CrewBattleNode512"],
VoidT2: ["CrewBattleNode535", "CrewBattleNode533"],
VoidT3: ["CrewBattleNode524", "CrewBattleNode525"],
VoidT4: [
"CrewBattleNode527",
"CrewBattleNode542",
"CrewBattleNode538",
"CrewBattleNode543",
@ -997,18 +998,21 @@ const voidStormMissionsB = {
"CrewBattleNode550",
"CrewBattleNode529"
]
};
} as const;
const voidStormLookbehind = {
VoidT1: 3,
VoidT2: 1,
VoidT3: 1,
VoidT4: 3
} as const;
const pushVoidStorms = (arr: IVoidStorm[], hour: number): void => {
const activation = hour * unixTimesInMs.hour + 40 * unixTimesInMs.minute;
const expiry = activation + 90 * unixTimesInMs.minute;
let accum = 0;
const rng = new SRng(new SRng(hour).randomInt(0, 100_000));
const voidStormMissions = structuredClone(hour & 1 ? voidStormMissionsA : voidStormMissionsB);
const tierIdx = { VoidT1: hour * 2, VoidT2: hour, VoidT3: hour, VoidT4: hour * 2 };
for (const tier of ["VoidT1", "VoidT1", "VoidT2", "VoidT3", "VoidT4", "VoidT4"] as const) {
const idx = rng.randomInt(0, voidStormMissions[tier].length - 1);
const node = voidStormMissions[tier][idx];
voidStormMissions[tier].splice(idx, 1);
arr.push({
_id: {
$oid:
@ -1016,7 +1020,12 @@ const pushVoidStorms = (arr: IVoidStorm[], hour: number): void => {
"0321e89b" +
(accum++).toString().padStart(8, "0")
},
Node: node,
Node: sequentiallyUniqueRandomElement(
voidStormMissions[tier],
tierIdx[tier]++,
voidStormLookbehind[tier],
2051969264
)!,
Activation: { $date: { $numberLong: activation.toString() } },
Expiry: { $date: { $numberLong: expiry.toString() } },
ActiveMissionTier: tier