changes

src/pvpRoguelike.ts

@@ -12,6 +12,7 @@ export type CpuPvpLeaderboardEntry = {
 }
 
 const cpuLeaderboardKey = 'chronicle.pvpCpuLeaderboard.v1'
+const checkpointKey = 'chronicle.pvpRoguelikeCheckpoint.v1'
 
 export function randomCpuDifficulty(): CpuDifficulty {
   return (Math.floor(Math.random() * 5) + 1) as CpuDifficulty
@@ -44,3 +45,24 @@ export function recordCpuPvpLeaderboard(entry: CpuPvpLeaderboardEntry) {
     .slice(0, 30)
   localStorage.setItem(cpuLeaderboardKey, JSON.stringify(next))
 }
+
+function checkpointStorageKey(characterId: number, contentType: PvpContentType) {
+  return `${checkpointKey}:${characterId}:${contentType}`
+}
+
+export function loadPvpRoguelikeCheckpoint(characterId: number, contentType: PvpContentType) {
+  const value = Number(localStorage.getItem(checkpointStorageKey(characterId, contentType)) ?? 1)
+  return Number.isInteger(value) && value >= 5 ? value : 1
+}
+
+export function recordPvpRoguelikeCheckpoint(
+  characterId: number,
+  contentType: PvpContentType,
+  stage: number,
+) {
+  if (stage < 5 || stage % 5 !== 0) return loadPvpRoguelikeCheckpoint(characterId, contentType)
+  const current = loadPvpRoguelikeCheckpoint(characterId, contentType)
+  const next = Math.max(current, stage)
+  localStorage.setItem(checkpointStorageKey(characterId, contentType), String(next))
+  return next
+}