ATM Flow

ATM Flow

Login Sequence

1. Open ATM.
2. Select account:
   • If primary account exists, it is preselected.
   • Player can switch account at any time.
3. PIN step:
   • No PIN set: prompt to create + confirm.
   • PIN set: prompt to enter PIN.
4. On success, main ATM menu opens.

Withdraw

• Amount must be a positive whole number.
• Validation order:
  • ownership check
  • account freeze check
  • per-transaction ATM limit check
  • daily ATM limit check
  • balance check
  • bill-dispense feasibility check
• On success:
  • account balance decreases
  • daily withdrawn counter increases
  • bills are given
  • transaction log entry is added

Deposit

• Amount must be a positive whole number.
• Validation order:
  • ownership check
  • account freeze check
  • enough bills in inventory
  • exact bill combination available
• On success:
  • bills are removed
  • balance increases
  • transaction log entry is added

Transfer

• Sender must belong to requesting player.
• Sender and recipient must be different accounts.
• Frozen sender/recipient accounts are rejected.
• On success:
  • transaction is logged on both accounts
  • recipient receives balance-changed chat event