Build your wheel & spin to reveal
Numbers from — each have a perfectly equal chance
· 40% chance of a reverse bounce on each spin
Biased Roulette
Build your wheel & spin to reveal
Numbers from — each have an equal chance
· 3 always carries a +20% boost when in range
[Python] Bank Account Simulator
main.py
import json
import datetime
# load account if exists
def load_account():
try:
with open("account.json", "r") as f:
account = json.load(f)
return account
except FileNotFoundError:
return -1
# create new account
def create_account():
account = {
"balance": 0.0,
"transactions": []
}
with open("account.json", "w") as f:
json.dump(account, f)
return account
# save account state
def save_account(account):
with open("account.json", "w") as f:
json.dump(account, f)
# deposit function
def deposit(account, amount):
account["balance"] += amount
account["transactions"].append({
"transaction_id": transaction_id_generator(len(account["transactions"])+1),
"type": "deposit",
"amount": amount,
"date": str(datetime.datetime.now()),
"balance_after": account["balance"]
})
save_account(account)
# Generate a unique 10-digit transaction ID
def transaction_id_generator(number):
return str(number).zfill(10)
# withdraw function
def withdraw(account, amount):
account["balance"] -= amount
account["transactions"].append({
"transaction_id": transaction_id_generator(len(account["transactions"])+1),
"type": "withdraw",
"amount": amount,
"date": str(datetime.datetime.now()),
"balance_after": account["balance"]
})
save_account(account)
# check balance function
def check_balance(account):
return account["balance"]
# view transactions function
def view_transactions(account):
if len(account["transactions"]) == 0:
return -1
else:
return account["transactions"]
# search transaction by ID function
def search_transaction_by_id(account, transaction_id):
for i in account["transactions"]:
if i["transaction_id"] == transaction_id:
return i
return -1
# search transaction by amount function
def search_transaction_by_amount(account, amount):
results = []
for i in account["transactions"]:
if i["amount"] == amount:
results.append(i)
if len(results) == 0:
return -1
else:
return results
# search transaction by date function
def search_transaction_by_date(account, date):
results = []
for i in account["transactions"]:
if date in i["date"]:
results.append(i)
if len(results) == 0:
return -1
else:
return results
# main program
def main():
# load or create account
account = load_account()
if account == -1:
account = create_account()
program_state = True
while program_state:
# main menu input
while True:
try:
print("\nInput option:\n1. Deposit\n2. Withdraw\n3. Check Balance\n4. View Transactions\n5. Search Transaction\n6. Exit")
choice = int(input("Enter choice (1-6): "))
if choice >= 1 and choice <= 6:
break
else:
print("Invalid choice. Please enter a number between 1 and 6.")
except ValueError:
print("Invalid input. Please enter a number between 1 and 6.")
# carry out the chosen operations with:
# 1. input with exception handling
# 2. perform operation
# 3. display result with formatting
# options:
# 1. deposit
if choice == 1:
while True:
try:
amount = float(input("Enter amount to deposit: "))
if amount > 0:
deposit(account, amount)
print(f"Deposited: ${amount:.2f}")
break
else:
print("Amount must be positive.")
except ValueError:
print("Invalid input. Please enter a valid amount.")
# 2. withdraw
elif choice == 2:
if account["balance"] <= 0:
print("Insufficient balance to withdraw.")
else:
while True:
try:
amount = float(input("Enter amount to withdraw: "))
if amount > 0 and amount <= account["balance"]:
withdraw(account, amount)
print(f"Withdrew: ${amount:.2f}")
break
else:
print("Invalid amount. Please enter a positive amount not exceeding your balance.")
except ValueError:
print("Invalid input. Please enter a valid amount.")
# 3. check balance
elif choice == 3:
balance = check_balance(account)
print(f"Current Balance: ${balance:.2f}")
# 4. view transactions
elif choice == 4:
transactions = view_transactions(account)
if transactions == -1:
print("Record is empty.")
else:
print("Transaction History:")
for i in transactions:
print(f"ID: {i['transaction_id']} | Type: {i['type']} | Amount: ${i['amount']:.2f} | Date: {i['date']} | Balance After: ${i['balance_after']:.2f}")
elif choice == 5:
# search transaction submenu
while True:
try:
print("Search options:\n1. By Transaction ID\n2. By Amount\n3. By Date\n4. Back to Main Menu")
search_choice = int(input("Enter choice (1-4): "))
if search_choice >= 1 and search_choice <= 4:
break
else:
print("Invalid choice. Please enter a number between 1 and 4.")
except ValueError:
print("Invalid input. Please enter a number between 1 and 4.")
# 1. search by transaction ID
if search_choice == 1:
# validate id input
while True:
try:
search_id = input("Enter Transaction ID to search: ")
if len(search_id) == 10 and search_id.isdigit():
break
else:
print("Invalid Transaction ID. It must be a 10-digit number.")
except ValueError:
print("Invalid Transaction ID. It must be a 10-digit number.")
# perform search
result = search_transaction_by_id(account, search_id)
if result == -1:
print("Transaction not found.")
else:
print("Transaction Found:")
print(f"ID: {result['transaction_id']} | Type: {result['type']} | Amount: ${result['amount']:.2f} | Date: {result['date']} | Balance After: ${result['balance_after']:.2f}")
# 2. search by amount
elif search_choice == 2:
# validate amount input
while True:
try:
search_amount = float(input("Enter Amount to search: "))
if search_amount > 0:
break
else:
print("Amount must be positive.")
except ValueError:
print("Invalid input. Please enter a valid amount.")
# perform search
results = search_transaction_by_amount(account, search_amount)
if results == -1:
print("No transactions found with specified amount.")
else:
print("Transactions Found:")
for i in results:
print(f"ID: {i['transaction_id']} | Type: {i['type']} | Amount: ${i['amount']:.2f} | Date: {i['date']} | Balance After: ${i['balance_after']:.2f}")
# 3. search by date
elif search_choice == 3:
# validate date input
while True:
try:
search_year = input("Enter Year (YYYY) to search: ")
search_month = input("Enter Month (MM) to search: ")
search_day = input("Enter Day (DD) to search: ")
if (len(search_year) == 4 and search_year.isdigit() and
len(search_month) == 2 and search_month.isdigit() and
len(search_day) == 2 and search_day.isdigit()):
search_date = f"{search_year}-{search_month}-{search_day}"
break
else:
print("Invalid date format. Please enter valid year, month, and day.")
except ValueError:
print("Invalid date format. Please enter valid year, month, and day.")
# perform search
results = search_transaction_by_date(account, search_date)
if results == -1:
print("No transactions found on the specified date.")
else:
print("Transactions Found:")
for i in results:
print(f"ID: {i['transaction_id']} | Type: {i['type']} | Amount: ${i['amount']:.2f} | Date: {i['date']} | Balance After: ${i['balance_after']:.2f}")
# 4. back to main menu
elif search_choice == 4:
main()
# 6. exit
elif choice == 6:
program_state = False
# run main program
main()
exit()
account.json
{"balance": 1038.0, "transactions": [{"transaction_id": "0000000001", "type": "deposit", "amount": 50.0, "date": "2025-12-07 22:51:28.043060", "balance_after": 50.0}, {"transaction_id": "0000000002", "type": "deposit", "amount": 50.0, "date": "2025-12-07 22:51:32.691213", "balance_after": 100.0}, {"transaction_id": "0000000003", "type": "withdraw", "amount": 99.0, "date": "2025-12-07 22:51:34.545436", "balance_after": 1.0}, {"transaction_id": "0000000004", "type": "deposit", "amount": 1230.0, "date": "2025-12-07 22:51:39.531519", "balance_after": 1231.0}, {"transaction_id": "0000000005", "type": "deposit", "amount": 1.0, "date": "2025-12-07 22:54:18.858317", "balance_after": 1232.0}, {"transaction_id": "0000000006", "type": "deposit", "amount": 1.0, "date": "2025-12-07 22:54:20.003650", "balance_after": 1233.0}, {"transaction_id": "0000000007", "type": "deposit", "amount": 1.0, "date": "2025-12-07 22:54:20.664279", "balance_after": 1234.0}, {"transaction_id": "0000000008", "type": "deposit", "amount": 1.0, "date": "2025-12-07 22:54:21.148810", "balance_after": 1235.0}, {"transaction_id": "0000000009", "type": "deposit", "amount": 1.0, "date": "2025-12-07 22:54:21.730856", "balance_after": 1236.0}, {"transaction_id": "0000000010", "type": "deposit", "amount": 1.0, "date": "2025-12-07 22:54:54.403182", "balance_after": 1237.0}, {"transaction_id": "0000000011", "type": "deposit", "amount": 1.0, "date": "2025-12-07 22:55:00.269094", "balance_after": 1238.0}, {"transaction_id": "0000000012", "type": "deposit", "amount": 1.0, "date": "2025-12-07 22:55:02.152792", "balance_after": 1239.0}, {"transaction_id": "0000000013", "type": "withdraw", "amount": 2.0, "date": "2025-12-07 22:55:40.729659", "balance_after": 1237.0}, {"transaction_id": "0000000014", "type": "withdraw", "amount": 99.0, "date": "2025-12-07 22:55:42.905709", "balance_after": 1138.0}, {"transaction_id": "0000000015", "type": "withdraw", "amount": 200.0, "date": "2025-12-07 22:55:48.474076", "balance_after": 938.0}, {"transaction_id": "0000000016", "type": "deposit", "amount": 100.0, "date": "2025-12-08 00:05:34.048016", "balance_after": 1038.0}]}
[Python] Connect 4
main.py
board=[[' ']*7,
[' ']*7,
[' ']*7,
[' ']*7,
[' ']*7,
[' ']*7]
fin=False
valid=True
r=0
def display():
global board
row=' '
for i in range(6):
row='ㅣ'+board[i][0]
for j in range(6):
row=row+'ㅣ'+board[i][j+1]
row=row+'ㅣ'
print(row)
def check_horizontal():
global board
global fin
for i in range(6):
for j in range(4):
if board[i][j]!=' ':
if board[i][j]==board[i][j+1] and board[i][j+1]==board[i][j+2] and board[i][j+2]==board[i][j+3]:
fin=True
def check_vertical():
global board
global fin
for j in range(7):
for i in range(3):
if board[i][j]!=' ':
if board[i][j]==board[i+1][j] and board[i+1][j]==board[i+2][j] and board[i+2][j]==board[i+3][j]:
fin=True
def check_diagnal_right():
global board
global fin
for i in range(3):
for j in range(4):
if board[i][j]!=' ':
if board[i][j]==board[i+1][j+1] and board[i+1][j+1]==board[i+2][j+2] and board[i+2][j+2]==board[i+3][j+3]:
fin=True
def check_diagnal_left():
global board
global fin
for i in range(3):
for j in range(4):
if board[5-i][j]!=' ':
if board[5-i][j]==board[4-i][j+1] and board[4-i][j+1]==board[3-i][j+2] and board[3-i][j+2]==board[2-i][j+3]:
fin=True
def check_win():
global board
global fin
check_horizontal()
check_vertical()
check_diagnal_right()
check_diagnal_left()
def enter(x,lim):
while True:
try:
x=int(input('type column(1~7):'))
if x>=0 and x<=lim:
x-=1
break
else:
print('out of range')
except ValueError:
print('wrong format')
return x
def put(x,n):
global board
global valid
found=False
i=0
while not(found) and i<=5:
if board[5-i][x]==' ':
found=True
else:
i+=1
if found:
if n==1:
board[5-i][x]='R'
else:
board[5-i][x]='Y'
valid=True
else:
print('column already full')
while not(fin):
display()
check_win()
if fin:
print('player 2 win')
break
valid=False
turn=1
print('player 1 turn (Red)')
while not(valid):
put(enter(r,7),1)
display()
check_win()
if fin:
print('player 1 win')
break
valid=False
turn=2
print('player 2 turn (Yellow)')
while not(valid):
put(enter(r,7),2)
[HTML] Simulation RPG Combat Sample
Battle Sample