wallet = 20.0
inventory = 0.0
wallet_data = [wallet]
inventory_data = [inventory]
networth_data = [wallet+inventory]
times = [0]

for e in events:
  if e.type == 'ItemBought':
     inventory += e.value
     wallet -= e.price
  if e.type == 'AuctionSold':
     wallet += e.price
     inventory -= e.value
  wallet_data.append(wallet)
  inventory_data.append(inventory)
  networth_data.append(wallet+inventory)
  times.append(e.time)