Revert "Remove anti cheat"

This reverts commit 512a24e5c3.

api/savedata/clear.go

@@ -50,6 +50,10 @@ func Clear(uuid []byte, slot int, seed string, save defs.SessionSaveData) (Clear
 			waveCompleted--
 		}
 
+		if save.Score >= 20000 {
+			db.SetAccountLimited(uuid, true)
+		}
+
 		err = db.AddOrUpdateAccountDailyRun(uuid, save.Score, waveCompleted)
 		if err != nil {
 			log.Printf("failed to add or update daily run record: %s", err)

api/savedata/update.go

@@ -42,6 +42,13 @@ func Update(uuid []byte, slot int, save any) error {
 			return fmt.Errorf("client version out of date")
 		}
 
+		if save.VoucherCounts["0"] > 300 ||
+		save.VoucherCounts["1"] > 150 ||
+		save.VoucherCounts["2"] > 100 ||
+		save.VoucherCounts["3"] > 10 {
+			db.SetAccountLimited(uuid, true)
+		}
+
 		err = db.UpdateAccountStats(uuid, save.GameStats, save.VoucherCounts)
 		if err != nil {
 			return fmt.Errorf("failed to update account stats: %s", err)

db/account.go

@@ -145,6 +145,15 @@ func UpdateAccountStats(uuid []byte, stats defs.GameStats, voucherCounts map[str
 	return nil
 }
 
+func SetAccountLimited(uuid []byte, limited bool) error {
+	_, err := handle.Exec("UPDATE accounts SET limited = ? WHERE uuid = ?", limited, uuid)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
 func FetchAndClaimAccountCompensations(uuid []byte) (map[int]int, error) {
 	var compensations = make(map[int]int)
 

db/daily.go

@@ -61,9 +61,9 @@ func FetchRankings(category int, page int) ([]defs.DailyRanking, error) {
 	var query string
 	switch category {
 	case 0:
-		query = "SELECT RANK() OVER (ORDER BY adr.score DESC, adr.timestamp), a.username, adr.score, adr.wave FROM accountDailyRuns adr JOIN dailyRuns dr ON dr.date = adr.date JOIN accounts a ON adr.uuid = a.uuid WHERE dr.date = UTC_DATE() AND a.banned = 0 LIMIT 10 OFFSET ?"
+		query = "SELECT RANK() OVER (ORDER BY adr.score DESC, adr.timestamp), a.username, adr.score, adr.wave FROM accountDailyRuns adr JOIN dailyRuns dr ON dr.date = adr.date JOIN accounts a ON adr.uuid = a.uuid WHERE dr.date = UTC_DATE() AND a.limited = 0 LIMIT 10 OFFSET ?"
 	case 1:
-		query = "SELECT RANK() OVER (ORDER BY SUM(adr.score) DESC, adr.timestamp), a.username, SUM(adr.score), 0 FROM accountDailyRuns adr JOIN dailyRuns dr ON dr.date = adr.date JOIN accounts a ON adr.uuid = a.uuid WHERE dr.date >= DATE_SUB(DATE(UTC_TIMESTAMP()), INTERVAL DAYOFWEEK(UTC_TIMESTAMP()) - 1 DAY) AND a.banned = 0 GROUP BY a.username ORDER BY 1 LIMIT 10 OFFSET ?"
+		query = "SELECT RANK() OVER (ORDER BY SUM(adr.score) DESC, adr.timestamp), a.username, SUM(adr.score), 0 FROM accountDailyRuns adr JOIN dailyRuns dr ON dr.date = adr.date JOIN accounts a ON adr.uuid = a.uuid WHERE dr.date >= DATE_SUB(DATE(UTC_TIMESTAMP()), INTERVAL DAYOFWEEK(UTC_TIMESTAMP()) - 1 DAY) AND a.limited = 0 GROUP BY a.username ORDER BY 1 LIMIT 10 OFFSET ?"
 	}
 
 	results, err := handle.Query(query, offset)