def Div(a, b):
"""
Integer division of two numbers, truncating the quotient.
"""
Require(b > 0)
c = a / b
return c
def Add(a, b):
"""
Adds two numbers, throws on overflow.
"""
c = a + b
Require(c >= a)
return c
def disableInitialStage(addr):
"""
In case the amassador quota is not met,
the administrator can manually disable the ambassador phase.
"""
Require(onlyAdmin(addr))
def Sub(a, b):
"""
Substracts two numbers, throws on overflow (i.e. if subtrahend is greater than minuend).
:param a: operand a
:param b: operand b
:return: a - b if a - b > 0 or revert the transaction.
"""
Require(a >= b)
return a - b
def Mul(a, b):
"""
Multiplies two numbers, throws on overflow.
:param a: operand a
:param b: operand b
:return: a - b if a - b > 0 or revert the transaction.
"""
if a == 0:
return 0
c = a * b
Require(c / a == b)
return c
def buy(account, ongAmount, referredBy):
"""
Converts all incoming ethereum to tokens for the caller,
and passes down the referral addy (if any)
"""
CheckWitness(account)
_undividedDividends = Div(Mul(ongAmount, dividendFee_), 100)
_referralBonus = Div(Mul(ongAmount, referralFee_), 100)
_dividends = Sub(_undividedDividends, _referralBonus)
_taxedOng = Sub(ongAmount - _undividedDividends)
_amountOfTokens = OngToToken(_taxedOng)
Require(_amountOfTokens > 0 & Add(_amountOfTokens, tokenSupply_) > tokenSupply_)
if(referredBy != 0 &
referredBy != account &
tokenBalanceOf(referredBy) >= statingRequirement_):
i = 0
def setSymbol(admin, _symbol):
Require(onlyAdmin(admin))
symbol = _symbol
return True
def setName(admin, _name):
Require(onlyAdmin(admin))
name = _name
return True
def setStakingRequirement(admin, _amountOfTokens):
Require(onlyAdmin(admin))
statingRequirement_ = _amountOfTokens
Notify("statingRequirement", statingRequirement_)
return True
def deleteAdmin(fromAdmin, deletedAdmin):
Require(onlyAdmin(fromAdmin, deletedAdmin))
key = concatKey(ADMIN_PREFIX, deletedAdmin)
Delete(GetContext(), key)
Notify(["deleteAdmin", fromAdmin, deletedAdmin])
def addAdmin(fromAdmin, newAdmin):
Require(onlyAdmin(fromAdmin))
key = concatKey(ADMIN_PREFIX, newAdmin)
Put(GetContext(), key, True)
Notify(["addAdmin", fromAdmin, newAdmin])
return True