def burn(self, _value):
#检查账户余额
require(self.balanceOf[msg.sender] >= _value)
self.balanceOf[msg.sender] -= _value
self.totalSupply -= _value
Event.emit("Burn", msg.sender, _value)
return True
def mint_token(self, target, minted_amount):
check_owner()
if target not in self.balanceOf:
self.balanceOf[target] = 0
self.balanceOf[target] += minted_amount
self.totalSupply += minted_amount
Event.emit("Transfer", 0, this, minted_amount)
Event.emit("Transfer", this, target, minted_amount)
def burnFrom(self, _from, _value):
# if _from not in self.balanceOf:
# self.balanceOf[_from] = 0
#检查账户余额
require(self.balanceOf[_from] >= _value)
require(_value <= self.allowance[_from][msg.sender])
self.balanceOf[_from] -= _value
self.allowance[_from][msg.sender] -= _value
self.totalSupply -= _value
Event.emit("Burn", _from, _value)
return True
def bet(self, one_bet_option, one_round_id):
print(msg.sender)
send_key = msg.sender + str(one_round_id)
one_game = self.games.get(send_key)
if one_game is not None:
return
one_game_round = GameRound()
one_game_round.roundId = one_round_id
one_game_round.stake = msg.value
one_game_round.betOption = one_bet_option
self.games[send_key] = one_game_round.__dict__
print(self.games)
Event.emit("bet", 0, this, one_game_round.stake)
def _transfer(self, _from, _to, _value):
if _to not in self.balanceOf:
self.balanceOf[_to] = 0
if _from not in self.balanceOf:
self.balanceOf[_from] = 0
# 接收账户地址是否合法
require(Address(_to).invalid())
# 账户余额是否满足转账金额
require(self.balanceOf[_from] >= _value)
# 检查转账金额是否合法
require(_value > 0)
# 转账
self.balanceOf[_from] -= _value
self.balanceOf[_to] += _value
Event.emit("Transfer", _from, _to, _value)
def settle(self, player_address, one_round_id, banker_point, player_point):
send_key = player_address + str(one_round_id)
one_game = self.games.get(send_key)
print(self.games)
print(one_game)
if one_game is None:
return
if one_game.get("isSettled"):
return
one_game["bankerPoint"] = banker_point
one_game["player_point"] = player_point
self._determine_result(one_game)
self._determine_loss(one_game)
account.transfer(player_address, one_game["winLoss"])
one_game["isSettled"] = True
Event.emit("settle", 0, this, one_game["winLoss"])
def approve(self, _spender, _value):
if msg.sender not in self.allowance:
self.allowance[msg.sender] = {}
self.allowance[msg.sender][_spender] = _value
Event.emit("Approval", msg.sender, _spender, _value)
return True
def freeze_account(self, target, freeze):
check_owner()
self.frozenAccount[target] = freeze
Event.emit("FrozenFunds", target, freeze)