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M_Viper
2026-11-13 12:10:26 +00:00
parent f33304953d
commit 4d2edc2fa3
2 changed files with 64 additions and 26 deletions
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BCEconomy_pl/src/main/java/net/viper/bceconomy/BCDatabase.java
+38
View File
@@ -131,6 +131,44 @@ public class BCDatabase {
}
}
/**
* Atomare Gutschrift (kein Lesen-Rechnen-Schreiben, daher keine verlorenen Updates).
* Das Konto muss existieren (vorher createAccountIfAbsent).
* @return true wenn eine Zeile geändert wurde
*/
public boolean addBalance(UUID uuid, double amount) {
if (!isConnected()) return false;
try (Connection con = dataSource.getConnection();
PreparedStatement ps = con.prepareStatement(
"UPDATE `" + TABLE + "` SET `balance` = `balance` + ? WHERE `player_name` = ?")) {
ps.setDouble(1, amount);
ps.setString(2, uuid.toString());
return ps.executeUpdate() > 0;
} catch (SQLException e) {
log.warning("[BCEconomy] addBalance fehlgeschlagen für " + uuid + ": " + e.getMessage());
return false;
}
}
/**
* Atomarer Abzug – nur wenn genug Guthaben vorhanden ist.
* @return true wenn abgezogen wurde, false bei zu wenig Guthaben oder fehlendem Konto
*/
public boolean withdrawBalance(UUID uuid, double amount) {
if (!isConnected()) return false;
try (Connection con = dataSource.getConnection();
PreparedStatement ps = con.prepareStatement(
"UPDATE `" + TABLE + "` SET `balance` = `balance` - ? WHERE `player_name` = ? AND `balance` >= ?")) {
ps.setDouble(1, amount);
ps.setString(2, uuid.toString());
ps.setDouble(3, amount);
return ps.executeUpdate() > 0;
} catch (SQLException e) {
log.warning("[BCEconomy] withdrawBalance fehlgeschlagen für " + uuid + ": " + e.getMessage());
return false;
}
}
/**
* Legt ein neues Konto mit Startguthaben an, falls noch keines existiert.
*/
BCEconomy_pl/src/main/java/net/viper/bceconomy/BCEconomyProvider.java
+25 -25
View File
@@ -108,17 +108,15 @@ public class BCEconomyProvider implements Economy {
@Override
public EconomyResponse depositPlayer(OfflinePlayer player, double amount) {
if (amount < 0)
if (!(amount >= 0) || Double.isInfinite(amount))
return new EconomyResponse(0, 0, EconomyResponse.ResponseType.FAILURE,
"Betrag darf nicht negativ sein.");
"Ungültiger Betrag.");
double current = db.loadBalance(player.getUniqueId());
if (current < 0) {
db.createAccountIfAbsent(player.getUniqueId(), startBalance);
current = startBalance;
}
double newBal = current + amount;
db.saveBalance(player.getUniqueId(), newBal);
if (!db.addBalance(player.getUniqueId(), amount))
return new EconomyResponse(0, 0, EconomyResponse.ResponseType.FAILURE,
"Datenbankfehler.");
double newBal = db.loadBalance(player.getUniqueId());
return new EconomyResponse(amount, newBal, EconomyResponse.ResponseType.SUCCESS, null);
}
@@ -129,18 +127,17 @@ public class BCEconomyProvider implements Economy {
@Override
public EconomyResponse withdrawPlayer(OfflinePlayer player, double amount) {
if (amount < 0)
if (!(amount >= 0) || Double.isInfinite(amount))
return new EconomyResponse(0, 0, EconomyResponse.ResponseType.FAILURE,
"Betrag darf nicht negativ sein.");
"Ungültiger Betrag.");
double current = db.loadBalance(player.getUniqueId());
if (current < 0) current = 0;
if (current < amount)
// Atomarer Abzug: parallele Käufe können dasselbe Guthaben nicht doppelt ausgeben
if (!db.withdrawBalance(player.getUniqueId(), amount)) {
double current = Math.max(0, db.loadBalance(player.getUniqueId()));
return new EconomyResponse(amount, current, EconomyResponse.ResponseType.FAILURE,
"Nicht genug Guthaben.");
double newBal = current - amount;
db.saveBalance(player.getUniqueId(), newBal);
}
double newBal = db.loadBalance(player.getUniqueId());
return new EconomyResponse(amount, newBal, EconomyResponse.ResponseType.SUCCESS, null);
}
@@ -184,10 +181,12 @@ public class BCEconomyProvider implements Economy {
UUID uuid = db.resolveUUIDByName(playerName);
if (uuid == null)
return new EconomyResponse(0, 0, EconomyResponse.ResponseType.FAILURE, "Spieler nicht gefunden.");
double current = db.loadBalance(uuid);
if (current < 0) current = 0;
double newBal = current + amount;
db.saveBalance(uuid, newBal);
if (!(amount >= 0) || Double.isInfinite(amount))
return new EconomyResponse(0, 0, EconomyResponse.ResponseType.FAILURE, "Ungültiger Betrag.");
db.createAccountIfAbsent(uuid, startBalance);
if (!db.addBalance(uuid, amount))
return new EconomyResponse(0, 0, EconomyResponse.ResponseType.FAILURE, "Datenbankfehler.");
double newBal = db.loadBalance(uuid);
return new EconomyResponse(amount, newBal, EconomyResponse.ResponseType.SUCCESS, null);
}
@@ -201,12 +200,13 @@ public class BCEconomyProvider implements Economy {
UUID uuid = db.resolveUUIDByName(playerName);
if (uuid == null)
return new EconomyResponse(0, 0, EconomyResponse.ResponseType.FAILURE, "Spieler nicht gefunden.");
double current = db.loadBalance(uuid);
if (current < 0) current = 0;
if (current < amount)
if (!(amount >= 0) || Double.isInfinite(amount))
return new EconomyResponse(0, 0, EconomyResponse.ResponseType.FAILURE, "Ungültiger Betrag.");
if (!db.withdrawBalance(uuid, amount)) {
double current = Math.max(0, db.loadBalance(uuid));
return new EconomyResponse(amount, current, EconomyResponse.ResponseType.FAILURE, "Nicht genug Guthaben.");
double newBal = current - amount;
db.saveBalance(uuid, newBal);
}
double newBal = db.loadBalance(uuid);
return new EconomyResponse(amount, newBal, EconomyResponse.ResponseType.SUCCESS, null);
}