Transaction #273
| Hash | fa1e496e56e0f929073b78d7c5003dddceb07adc6e3a8d1cee86fb27c4feb604 |
| Status | Success |
| Timestamp | 453 days ago - 2/1/2023, 9:27:24 PM UTC+0 |
| Block | 273 |
| Stamps Used | 1007 |
| Burned Fee | 0.05958580 TAU |
| From | 7c296eb80e379171f694a3c5be7640d16f300f09d731c99ac0a92f49c9c0c151 |
| Contract Name | submission |
| Function Name | submit_contract |
Additional Info
| Nonce | 16 |
| Processor | e79133b02cd2a84e2ce5d24b2f44433f61f0db7e10acedfc241e94dff06f710a |
| Signature | ecc917c34c30c55c8e032f131861e8295e9f183e55d77bfb3cca145c972fdf71a38b1fc6591f95dde4f7d5efb7f3840a3978b8a62d3881b1197b3dbb5351d607 |
| Stamps Supplied | 2000 |
| Stamps per TAU | 169 |
Kwargs
| code | import currency I = importlib # Enforceable interface token_interface = [ I.Func('transfer', args=('amount', 'to')), I.Func('approve', args=('amount', 'to')), I.Func('transfer_from', args=('amount', 'to', 'main_account')) ] pairs = Hash() prices = Hash(default_value=0) lp_points = Hash(default_value=0) reserves = Hash(default_value=[0, 0]) staked_amount = Hash(default_value=0) discount = Hash(default_value=1) state = Hash() @construct def seed(): #These are supposed to be constants, but they are changable state["FEE_PERCENTAGE"] = 0.3 / 100 state["TOKEN_CONTRACT"] = "con_amm" state["TOKEN_DISCOUNT"] = 0.75 state["BURN_PERCENTAGE"] = 0.8 state["BURN_ADDRESS"] = "0x0" #Change this state["LOG_ACCURACY"] = 1000000000.0 #The stamp difference for a higher number should be unnoticable state["MULTIPLIER"] = 0.05 state["DISCOUNT_FLOOR"] = 0.0 state["OWNER"] = ctx.caller @export def create_market(contract: str, currency_amount: float=0, token_amount: float=0): assert pairs[contract] is None, 'Market already exists!' assert currency_amount > 0 and token_amount > 0, 'Must provide currency amount and token amount!' token = I.import_module(contract) assert I.enforce_interface(token, token_interface), 'Invalid token interface!' currency.transfer_from(amount=currency_amount, to=ctx.this, main_account=ctx.caller) token.transfer_from(amount=token_amount, to=ctx.this, main_account=ctx.caller) prices[contract] = currency_amount / token_amount pairs[contract] = True # Mint 100 liquidity points lp_points[contract, ctx.caller] = 100 lp_points[contract] = 100 reserves[contract] = [currency_amount, token_amount] return True @export def liquidity_balance_of(contract: str, account: str): return lp_points[contract, account] @export def add_liquidity(contract: str, currency_amount: float=0): assert pairs[contract] is True, 'Market does not exist!' assert currency_amount > 0 token = I.import_module(contract) assert I.enforce_interface(token, token_interface), 'Invalid token interface!' # Determine the number of tokens required token_amount = currency_amount / prices[contract] # Transfer both tokens currency.transfer_from(amount=currency_amount, to=ctx.this, main_account=ctx.caller) token.transfer_from(amount=token_amount, to=ctx.this, main_account=ctx.caller) # Calculate the LP points to mint total_lp_points = lp_points[contract] currency_reserve, token_reserve = reserves[contract] points_per_currency = total_lp_points / currency_reserve lp_to_mint = points_per_currency * currency_amount # Update the LP points lp_points[contract, ctx.caller] += lp_to_mint lp_points[contract] += lp_to_mint # Update the reserves reserves[contract] = [currency_reserve + currency_amount, token_reserve + token_amount] #Return amount of LP minted return lp_to_mint @export def remove_liquidity(contract: str, amount: float=0): assert pairs[contract] is True, 'Market does not exist!' assert amount > 0, 'Must be a positive LP point amount!' assert lp_points[contract, ctx.caller] >= amount, 'Not enough LP points to remove!' token = I.import_module(contract) assert I.enforce_interface(token, token_interface), 'Invalid token interface!' lp_percentage = amount / lp_points[contract] currency_reserve, token_reserve = reserves[contract] currency_amount = currency_reserve * (lp_percentage) token_amount = token_reserve * (lp_percentage) currency.transfer(to=ctx.caller, amount=currency_amount) token.transfer(to=ctx.caller, amount=token_amount) lp_points[contract, ctx.caller] -= amount lp_points[contract] -= amount assert lp_points[contract] > 1, 'Not enough remaining liquidity!' new_currency_reserve = currency_reserve - currency_amount new_token_reserve = token_reserve - token_amount assert new_currency_reserve > 0 and new_token_reserve > 0, 'Not enough remaining liquidity!' reserves[contract] = [new_currency_reserve, new_token_reserve] return currency_amount, token_amount @export def transfer_liquidity(contract: str, to: str, amount: float): assert amount > 0, 'Must be a positive LP point amount!' assert lp_points[contract, ctx.caller] >= amount, 'Not enough LP points to transfer!' lp_points[contract, ctx.caller] -= amount lp_points[contract, to] += amount @export def approve_liquidity(contract: str, to: str, amount: float): assert amount > 0, 'Cannot send negative balances!' lp_points[contract, ctx.caller, to] += amount @export def transfer_liquidity_from(contract: str, to: str, main_account: str, amount: float): assert amount > 0, 'Cannot send negative balances!' assert lp_points[contract, main_account, ctx.caller] >= amount, 'Not enough coins approved to send! You have ' \ '{} and are trying to spend {}'.format(lp_points[main_account, ctx.caller], amount) assert lp_points[contract, main_account] >= amount, 'Not enough coins to send!' lp_points[contract, main_account, ctx.caller] -= amount lp_points[contract, main_account] -= amount lp_points[contract, to] += amount # Buy takes fee from the crypto being transferred in @export def buy(contract: str, currency_amount: float, minimum_received: float=0, token_fees: bool=False): assert pairs[contract] is True, 'Market does not exist!' assert currency_amount > 0, 'Must provide currency amount!' token = I.import_module(contract) amm_token = I.import_module(state["TOKEN_CONTRACT"]) assert I.enforce_interface(token, token_interface), 'Invalid token interface!' if contract == state["TOKEN_CONTRACT"]: currency.transfer_from(amount=currency_amount, to=ctx.this, main_account=ctx.caller) tokens_purchased = internal_buy(contract=state["TOKEN_CONTRACT"], currency_amount=currency_amount) token.transfer(amount=tokens_purchased, to=ctx.caller) return tokens_purchased currency_reserve, token_reserve = reserves[contract] k = currency_reserve * token_reserve new_currency_reserve = currency_reserve + currency_amount new_token_reserve = k / new_currency_reserve tokens_purchased = token_reserve - new_token_reserve fee_percent = state["FEE_PERCENTAGE"] * discount[ctx.caller] #Discount is applied here fee = tokens_purchased * fee_percent if token_fees is True: fee = fee * state["TOKEN_DISCOUNT"] rswp_k = currency_reserve * token_reserve rswp_new_token_reserve = token_reserve + fee rswp_new_currency_reserve = rswp_k / rswp_new_token_reserve rswp_currency_purchased = currency_reserve - rswp_new_currency_reserve # MINUS FEE rswp_currency_purchased += rswp_currency_purchased * fee_percent rswp_currency_reserve_2, rswp_token_reserve_2 = reserves[state["TOKEN_CONTRACT"]] #This converts fees in TAU to fees in RSWP rswp_k_2 = rswp_currency_reserve_2 * rswp_token_reserve_2 rswp_new_currency_reserve_2 = rswp_currency_reserve_2 + rswp_currency_purchased rswp_new_currency_reserve_2 += rswp_currency_purchased * fee_percent #Not 100% accurate, uses output currency instead of input currency rswp_new_token_reserve_2 = rswp_k_2 / rswp_new_currency_reserve_2 sell_amount = rswp_token_reserve_2 - rswp_new_token_reserve_2 #SEMI-VOODOO MATH, PLEASE DOUBLE CHECK sell_amount_with_fee = sell_amount * state["BURN_PERCENTAGE"] amm_token.transfer_from(amount=sell_amount, to=ctx.this, main_account=ctx.caller) currency_received = internal_sell(contract=state["TOKEN_CONTRACT"], token_amount=sell_amount_with_fee) amm_token.transfer(amount=sell_amount - sell_amount_with_fee, to=state["BURN_ADDRESS"]) token_received = internal_buy(contract=contract, currency_amount=currency_received) new_currency_reserve += reserves[contract][0] - currency_reserve new_token_reserve += reserves[contract][1] - token_reserve new_token_reserve = (new_token_reserve) + token_received #This can probably be removed during production else: tokens_purchased = (tokens_purchased) - fee burn_amount = internal_buy(contract=state["TOKEN_CONTRACT"], currency_amount=internal_sell(contract=contract, token_amount=fee - fee * state["BURN_PERCENTAGE"])) new_currency_reserve += reserves[contract][0] - currency_reserve new_token_reserve += reserves[contract][1] - token_reserve new_token_reserve = (new_token_reserve) + fee * state["BURN_PERCENTAGE"] amm_token.transfer(amount=burn_amount, to=state["BURN_ADDRESS"]) #Burn here if minimum_received != None: assert tokens_purchased >= minimum_received, "Only {} tokens can be purchased, which is less than your minimum, which is {} tokens.".format(tokens_purchased, minimum_received) assert tokens_purchased > 0, 'Token reserve error!' currency.transfer_from(amount=currency_amount, to=ctx.this, main_account=ctx.caller) token.transfer(amount=tokens_purchased, to=ctx.caller) reserves[contract] = [new_currency_reserve, new_token_reserve] prices[contract] = new_currency_reserve / new_token_reserve return tokens_purchased # Sell takes fee from crypto being transferred out @export def sell(contract: str, token_amount: float, minimum_received: float=0, token_fees: bool=False): assert pairs[contract] is True, 'Market does not exist!' assert token_amount > 0, 'Must provide currency amount and token amount!' token = I.import_module(contract) amm_token = I.import_module(state["TOKEN_CONTRACT"]) assert I.enforce_interface(token, token_interface), 'Invalid token interface!' if contract == state["TOKEN_CONTRACT"]: token.transfer_from(amount=token_amount, to=ctx.this, main_account=ctx.caller) currency_purchased = internal_sell(contract=state["TOKEN_CONTRACT"], token_amount=token_amount) currency.transfer(amount=currency_purchased, to=ctx.caller) return currency_purchased currency_reserve, token_reserve = reserves[contract] k = currency_reserve * token_reserve new_token_reserve = token_reserve + token_amount new_currency_reserve = k / new_token_reserve currency_purchased = currency_reserve - new_currency_reserve # MINUS FEE fee_percent = state["FEE_PERCENTAGE"] * discount[ctx.caller] #Discount is applied here fee = currency_purchased * fee_percent if token_fees is True: fee = fee * state["TOKEN_DISCOUNT"] rswp_currency_reserve, rswp_token_reserve = reserves[state["TOKEN_CONTRACT"]] rswp_k = rswp_currency_reserve * rswp_token_reserve rswp_new_currency_reserve = rswp_currency_reserve + fee rswp_new_currency_reserve += fee * fee_percent #Not 100% accurate, uses output currency instead of input currency rswp_new_token_reserve = rswp_k / rswp_new_currency_reserve sell_amount = rswp_token_reserve - rswp_new_token_reserve #SEMI-VOODOO MATH, PLEASE DOUBLE CHECK sell_amount_with_fee = sell_amount * state["BURN_PERCENTAGE"] amm_token.transfer_from(amount=sell_amount, to=ctx.this, main_account=ctx.caller) currency_received = internal_sell(contract=state["TOKEN_CONTRACT"], token_amount=sell_amount_with_fee) amm_token.transfer(amount=sell_amount - sell_amount_with_fee, to=state["BURN_ADDRESS"]) new_currency_reserve = (new_currency_reserve) + currency_received else: currency_purchased = (currency_purchased) - fee burn_amount = fee - fee * state["BURN_PERCENTAGE"] new_currency_reserve = (new_currency_reserve) + fee * state["BURN_PERCENTAGE"] token_received = internal_buy(contract=state["TOKEN_CONTRACT"], currency_amount=burn_amount) amm_token.transfer(amount=token_received, to=state["BURN_ADDRESS"]) #Buy and burn here if minimum_received != None: #!= because the type is not exact assert currency_purchased >= minimum_received, "Only {} TAU can be purchased, which is less than your minimum, which is {} TAU.".format(currency_purchased, minimum_received) assert currency_purchased > 0, 'Token reserve error!' token.transfer_from(amount=token_amount, to=ctx.this, main_account=ctx.caller) currency.transfer(amount=currency_purchased, to=ctx.caller) reserves[contract] = [new_currency_reserve, new_token_reserve] prices[contract] = new_currency_reserve / new_token_reserve return currency_purchased @export def stake(amount: float, token_contract: str=None): assert amount >= 0, 'Must be a positive stake amount!' if token_contract == None: token_contract = state["TOKEN_CONTRACT"] amm_token = I.import_module(token_contract) current_balance = staked_amount[ctx.caller, token_contract] if amount < current_balance: amm_token.transfer(current_balance - amount, ctx.caller) staked_amount[ctx.caller, token_contract] = amount #Rest of this can be abstracted in another function discount_amount = state["LOG_ACCURACY"] * (staked_amount[ctx.caller, state["TOKEN_CONTRACT"]] ** (1 / state["LOG_ACCURACY"]) - 1) * state["MULTIPLIER"] - state["DISCOUNT_FLOOR"] #Calculates discount percentage if discount_amount > 0.99: #Probably unnecessary, but added to prevent floating point and division by zero issues discount_amount = 0.99 if discount_amount < 0: discount_amount = 0 discount[ctx.caller] = 1 - discount_amount return discount_amount elif amount > current_balance: #Can replace with else, but this probably closes up a few edge cases like `if amount == current_balance` amm_token.transfer_from(amount - current_balance, ctx.this, ctx.caller) staked_amount[ctx.caller, token_contract] = amount discount_amount = state["LOG_ACCURACY"] * (staked_amount[ctx.caller, state["TOKEN_CONTRACT"]] ** (1 / state["LOG_ACCURACY"]) - 1) * state["MULTIPLIER"] - state["DISCOUNT_FLOOR"] if discount_amount > 0.99: discount_amount = 0.99 if discount_amount < 0: discount_amount = 0 discount[ctx.caller] = 1 - discount_amount return discount_amount @export def change_state(key: str, new_value: str, convert_to_decimal: bool=False): assert state["OWNER"] == ctx.caller, "Not the owner!" if convert_to_decimal: new_value = decimal(new_value) state[key] = new_value return new_value @export def change_state_float(key: str, new_value: float, convert_to_int: bool=False): assert state["OWNER"] == ctx.caller, "Not the owner!" if convert_to_int: new_value = int(new_value) state[key] = new_value return new_value @export def sync_reserves(contract: str): assert state["SYNC_ENABLED"] is True, "Sync is not enabled!" token = I.import_module(contract) new_balance = token.balance_of(ctx.this) assert new_balance > 0, "Cannot be a negative balance!" reserves[contract][1] = new_balance return new_balance # Internal use only def internal_buy(contract: str, currency_amount: float): assert pairs[contract] is True, 'RSWP Market does not exist!' if currency_amount <= 0: return 0 token = I.import_module(contract) assert I.enforce_interface(token, token_interface), 'Invalid token interface!' currency_reserve, token_reserve = reserves[contract] k = currency_reserve * token_reserve new_currency_reserve = currency_reserve + currency_amount new_token_reserve = k / new_currency_reserve tokens_purchased = token_reserve - new_token_reserve fee = tokens_purchased * state["FEE_PERCENTAGE"] tokens_purchased -= fee new_token_reserve += fee assert tokens_purchased > 0, 'Token reserve error!' reserves[contract] = [new_currency_reserve, new_token_reserve] prices[contract] = new_currency_reserve / new_token_reserve return tokens_purchased # Internal use only def internal_sell(contract: str, token_amount: float): assert pairs[contract] is True, 'RSWP Market does not exist!' if token_amount <= 0: return 0 token = I.import_module(contract) assert I.enforce_interface(token, token_interface), 'Invalid token interface!' currency_reserve, token_reserve = reserves[contract] k = currency_reserve * token_reserve new_token_reserve = token_reserve + token_amount new_currency_reserve = k / new_token_reserve currency_purchased = currency_reserve - new_currency_reserve # MINUS FEE fee = currency_purchased * state["FEE_PERCENTAGE"] currency_purchased -= fee new_currency_reserve += fee assert currency_purchased > 0, 'Token reserve error!' reserves[contract] = [new_currency_reserve, new_token_reserve] prices[contract] = new_currency_reserve / new_token_reserve return currency_purchased |
| name | con_dex_example |
State Changes
| Contract | con_dex_example |
| Variable | state |
| Key | FEE_PERCENTAGE |
| New Value | 0.003 |
| Contract | con_dex_example |
| Variable | state |
| Key | TOKEN_CONTRACT |
| New Value | con_amm |
| Contract | con_dex_example |
| Variable | state |
| Key | TOKEN_DISCOUNT |
| New Value | 0.75 |
| Contract | con_dex_example |
| Variable | state |
| Key | BURN_PERCENTAGE |
| New Value | 0.8 |
| Contract | con_dex_example |
| Variable | state |
| Key | BURN_ADDRESS |
| New Value | 0x0 |
| Contract | con_dex_example |
| Variable | state |
| Key | LOG_ACCURACY |
| New Value | 1000000000.0 |
| Contract | con_dex_example |
| Variable | state |
| Key | MULTIPLIER |
| New Value | 0.05 |
| Contract | con_dex_example |
| Variable | state |
| Key | DISCOUNT_FLOOR |
| New Value | 0.0 |
| Contract | con_dex_example |
| Variable | state |
| Key | OWNER |
| New Value | 7c296eb80e379171f694a3c5be7640d16f300f09d731c99ac0a92f49c9c0c151 |
| Contract | con_dex_example |
| Variable | __code__ |
| New Value | import currency I = importlib token_interface = [I.Func('transfer', args=('amount', 'to')), I.Func( 'approve', args=('amount', 'to')), I.Func('transfer_from', args=( 'amount', 'to', 'main_account'))] __pairs = Hash(contract='con_dex_example', name='pairs') __prices = Hash(default_value=0, contract='con_dex_example', name='prices') __lp_points = Hash(default_value=0, contract='con_dex_example', name= 'lp_points') __reserves = Hash(default_value=[0, 0], contract='con_dex_example', name= 'reserves') __staked_amount = Hash(default_value=0, contract='con_dex_example', name= 'staked_amount') __discount = Hash(default_value=1, contract='con_dex_example', name='discount') __state = Hash(contract='con_dex_example', name='state') def ____(): __state['FEE_PERCENTAGE'] = decimal('0.3') / 100 __state['TOKEN_CONTRACT'] = 'con_amm' __state['TOKEN_DISCOUNT'] = decimal('0.75') __state['BURN_PERCENTAGE'] = decimal('0.8') __state['BURN_ADDRESS'] = '0x0' __state['LOG_ACCURACY'] = decimal('1000000000.0') __state['MULTIPLIER'] = decimal('0.05') __state['DISCOUNT_FLOOR'] = decimal('0.0') __state['OWNER'] = ctx.caller @__export('con_dex_example') def create_market(contract: str, currency_amount: float=0, token_amount: float=0): assert __pairs[contract] is None, 'Market already exists!' assert currency_amount > 0 and token_amount > 0, 'Must provide currency amount and token amount!' token = I.import_module(contract) assert I.enforce_interface(token, token_interface ), 'Invalid token interface!' currency.transfer_from(amount=currency_amount, to=ctx.this, main_account=ctx.caller) token.transfer_from(amount=token_amount, to=ctx.this, main_account=ctx. caller) __prices[contract] = currency_amount / token_amount __pairs[contract] = True __lp_points[contract, ctx.caller] = 100 __lp_points[contract] = 100 __reserves[contract] = [currency_amount, token_amount] return True @__export('con_dex_example') def liquidity_balance_of(contract: str, account: str): return __lp_points[contract, account] @__export('con_dex_example') def add_liquidity(contract: str, currency_amount: float=0): assert __pairs[contract] is True, 'Market does not exist!' assert currency_amount > 0 token = I.import_module(contract) assert I.enforce_interface(token, token_interface ), 'Invalid token interface!' token_amount = currency_amount / __prices[contract] currency.transfer_from(amount=currency_amount, to=ctx.this, main_account=ctx.caller) token.transfer_from(amount=token_amount, to=ctx.this, main_account=ctx. caller) total_lp_points = __lp_points[contract] currency_reserve, token_reserve = __reserves[contract] points_per_currency = total_lp_points / currency_reserve lp_to_mint = points_per_currency * currency_amount __lp_points[contract, ctx.caller] += lp_to_mint __lp_points[contract] += lp_to_mint __reserves[contract] = [currency_reserve + currency_amount, token_reserve + token_amount] return lp_to_mint @__export('con_dex_example') def remove_liquidity(contract: str, amount: float=0): assert __pairs[contract] is True, 'Market does not exist!' assert amount > 0, 'Must be a positive LP point amount!' assert __lp_points[contract, ctx.caller ] >= amount, 'Not enough LP points to remove!' token = I.import_module(contract) assert I.enforce_interface(token, token_interface ), 'Invalid token interface!' lp_percentage = amount / __lp_points[contract] currency_reserve, token_reserve = __reserves[contract] currency_amount = currency_reserve * lp_percentage token_amount = token_reserve * lp_percentage currency.transfer(to=ctx.caller, amount=currency_amount) token.transfer(to=ctx.caller, amount=token_amount) __lp_points[contract, ctx.caller] -= amount __lp_points[contract] -= amount assert __lp_points[contract] > 1, 'Not enough remaining liquidity!' new_currency_reserve = currency_reserve - currency_amount new_token_reserve = token_reserve - token_amount assert new_currency_reserve > 0 and new_token_reserve > 0, 'Not enough remaining liquidity!' __reserves[contract] = [new_currency_reserve, new_token_reserve] return currency_amount, token_amount @__export('con_dex_example') def transfer_liquidity(contract: str, to: str, amount: float): assert amount > 0, 'Must be a positive LP point amount!' assert __lp_points[contract, ctx.caller ] >= amount, 'Not enough LP points to transfer!' __lp_points[contract, ctx.caller] -= amount __lp_points[contract, to] += amount @__export('con_dex_example') def approve_liquidity(contract: str, to: str, amount: float): assert amount > 0, 'Cannot send negative balances!' __lp_points[contract, ctx.caller, to] += amount @__export('con_dex_example') def transfer_liquidity_from(contract: str, to: str, main_account: str, amount: float): assert amount > 0, 'Cannot send negative balances!' assert __lp_points[contract, main_account, ctx.caller ] >= amount, 'Not enough coins approved to send! You have {} and are trying to spend {}'.format( __lp_points[main_account, ctx.caller], amount) assert __lp_points[contract, main_account ] >= amount, 'Not enough coins to send!' __lp_points[contract, main_account, ctx.caller] -= amount __lp_points[contract, main_account] -= amount __lp_points[contract, to] += amount @__export('con_dex_example') def buy(contract: str, currency_amount: float, minimum_received: float=0, token_fees: bool=False): assert __pairs[contract] is True, 'Market does not exist!' assert currency_amount > 0, 'Must provide currency amount!' token = I.import_module(contract) amm_token = I.import_module(__state['TOKEN_CONTRACT']) assert I.enforce_interface(token, token_interface ), 'Invalid token interface!' if contract == __state['TOKEN_CONTRACT']: currency.transfer_from(amount=currency_amount, to=ctx.this, main_account=ctx.caller) tokens_purchased = __internal_buy(contract=__state['TOKEN_CONTRACT' ], currency_amount=currency_amount) token.transfer(amount=tokens_purchased, to=ctx.caller) return tokens_purchased currency_reserve, token_reserve = __reserves[contract] k = currency_reserve * token_reserve new_currency_reserve = currency_reserve + currency_amount new_token_reserve = k / new_currency_reserve tokens_purchased = token_reserve - new_token_reserve fee_percent = __state['FEE_PERCENTAGE'] * __discount[ctx.caller] fee = tokens_purchased * fee_percent if token_fees is True: fee = fee * __state['TOKEN_DISCOUNT'] rswp_k = currency_reserve * token_reserve rswp_new_token_reserve = token_reserve + fee rswp_new_currency_reserve = rswp_k / rswp_new_token_reserve rswp_currency_purchased = currency_reserve - rswp_new_currency_reserve rswp_currency_purchased += rswp_currency_purchased * fee_percent rswp_currency_reserve_2, rswp_token_reserve_2 = __reserves[__state[ 'TOKEN_CONTRACT']] rswp_k_2 = rswp_currency_reserve_2 * rswp_token_reserve_2 rswp_new_currency_reserve_2 = (rswp_currency_reserve_2 + rswp_currency_purchased) rswp_new_currency_reserve_2 += rswp_currency_purchased * fee_percent rswp_new_token_reserve_2 = rswp_k_2 / rswp_new_currency_reserve_2 sell_amount = rswp_token_reserve_2 - rswp_new_token_reserve_2 sell_amount_with_fee = sell_amount * __state['BURN_PERCENTAGE'] amm_token.transfer_from(amount=sell_amount, to=ctx.this, main_account=ctx.caller) currency_received = __internal_sell(contract=__state[ 'TOKEN_CONTRACT'], token_amount=sell_amount_with_fee) amm_token.transfer(amount=sell_amount - sell_amount_with_fee, to= __state['BURN_ADDRESS']) token_received = __internal_buy(contract=contract, currency_amount= currency_received) new_currency_reserve += __reserves[contract][0] - currency_reserve new_token_reserve += __reserves[contract][1] - token_reserve new_token_reserve = new_token_reserve + token_received else: tokens_purchased = tokens_purchased - fee burn_amount = __internal_buy(contract=__state['TOKEN_CONTRACT'], currency_amount=__internal_sell(contract=contract, token_amount =fee - fee * __state['BURN_PERCENTAGE'])) new_currency_reserve += __reserves[contract][0] - currency_reserve new_token_reserve += __reserves[contract][1] - token_reserve new_token_reserve = new_token_reserve + fee * __state['BURN_PERCENTAGE' ] amm_token.transfer(amount=burn_amount, to=__state['BURN_ADDRESS']) if minimum_received != None: assert tokens_purchased >= minimum_received, 'Only {} tokens can be purchased, which is less than your minimum, which is {} tokens.'.format( tokens_purchased, minimum_received) assert tokens_purchased > 0, 'Token reserve error!' currency.transfer_from(amount=currency_amount, to=ctx.this, main_account=ctx.caller) token.transfer(amount=tokens_purchased, to=ctx.caller) __reserves[contract] = [new_currency_reserve, new_token_reserve] __prices[contract] = new_currency_reserve / new_token_reserve return tokens_purchased @__export('con_dex_example') def sell(contract: str, token_amount: float, minimum_received: float=0, token_fees: bool=False): assert __pairs[contract] is True, 'Market does not exist!' assert token_amount > 0, 'Must provide currency amount and token amount!' token = I.import_module(contract) amm_token = I.import_module(__state['TOKEN_CONTRACT']) assert I.enforce_interface(token, token_interface ), 'Invalid token interface!' if contract == __state['TOKEN_CONTRACT']: token.transfer_from(amount=token_amount, to=ctx.this, main_account= ctx.caller) currency_purchased = __internal_sell(contract=__state[ 'TOKEN_CONTRACT'], token_amount=token_amount) currency.transfer(amount=currency_purchased, to=ctx.caller) return currency_purchased currency_reserve, token_reserve = __reserves[contract] k = currency_reserve * token_reserve new_token_reserve = token_reserve + token_amount new_currency_reserve = k / new_token_reserve currency_purchased = currency_reserve - new_currency_reserve fee_percent = __state['FEE_PERCENTAGE'] * __discount[ctx.caller] fee = currency_purchased * fee_percent if token_fees is True: fee = fee * __state['TOKEN_DISCOUNT'] rswp_currency_reserve, rswp_token_reserve = __reserves[__state[ 'TOKEN_CONTRACT']] rswp_k = rswp_currency_reserve * rswp_token_reserve rswp_new_currency_reserve = rswp_currency_reserve + fee rswp_new_currency_reserve += fee * fee_percent rswp_new_token_reserve = rswp_k / rswp_new_currency_reserve sell_amount = rswp_token_reserve - rswp_new_token_reserve sell_amount_with_fee = sell_amount * __state['BURN_PERCENTAGE'] amm_token.transfer_from(amount=sell_amount, to=ctx.this, main_account=ctx.caller) currency_received = __internal_sell(contract=__state[ 'TOKEN_CONTRACT'], token_amount=sell_amount_with_fee) amm_token.transfer(amount=sell_amount - sell_amount_with_fee, to= __state['BURN_ADDRESS']) new_currency_reserve = new_currency_reserve + currency_received else: currency_purchased = currency_purchased - fee burn_amount = fee - fee * __state['BURN_PERCENTAGE'] new_currency_reserve = new_currency_reserve + fee * __state[ 'BURN_PERCENTAGE'] token_received = __internal_buy(contract=__state['TOKEN_CONTRACT'], currency_amount=burn_amount) amm_token.transfer(amount=token_received, to=__state['BURN_ADDRESS']) if minimum_received != None: assert currency_purchased >= minimum_received, 'Only {} TAU can be purchased, which is less than your minimum, which is {} TAU.'.format( currency_purchased, minimum_received) assert currency_purchased > 0, 'Token reserve error!' token.transfer_from(amount=token_amount, to=ctx.this, main_account=ctx. caller) currency.transfer(amount=currency_purchased, to=ctx.caller) __reserves[contract] = [new_currency_reserve, new_token_reserve] __prices[contract] = new_currency_reserve / new_token_reserve return currency_purchased @__export('con_dex_example') def stake(amount: float, token_contract: str=None): assert amount >= 0, 'Must be a positive stake amount!' if token_contract == None: token_contract = __state['TOKEN_CONTRACT'] amm_token = I.import_module(token_contract) current_balance = __staked_amount[ctx.caller, token_contract] if amount < current_balance: amm_token.transfer(current_balance - amount, ctx.caller) __staked_amount[ctx.caller, token_contract] = amount discount_amount = __state['LOG_ACCURACY'] * (__staked_amount[ctx. caller, __state['TOKEN_CONTRACT']] ** (1 / __state[ 'LOG_ACCURACY']) - 1) * __state['MULTIPLIER'] - __state[ 'DISCOUNT_FLOOR'] if discount_amount > decimal('0.99'): discount_amount = decimal('0.99') if discount_amount < 0: discount_amount = 0 __discount[ctx.caller] = 1 - discount_amount return discount_amount elif amount > current_balance: amm_token.transfer_from(amount - current_balance, ctx.this, ctx.caller) __staked_amount[ctx.caller, token_contract] = amount discount_amount = __state['LOG_ACCURACY'] * (__staked_amount[ctx. caller, __state['TOKEN_CONTRACT']] ** (1 / __state[ 'LOG_ACCURACY']) - 1) * __state['MULTIPLIER'] - __state[ 'DISCOUNT_FLOOR'] if discount_amount > decimal('0.99'): discount_amount = decimal('0.99') if discount_amount < 0: discount_amount = 0 __discount[ctx.caller] = 1 - discount_amount return discount_amount @__export('con_dex_example') def change_state(key: str, new_value: str, convert_to_decimal: bool=False): assert __state['OWNER'] == ctx.caller, 'Not the owner!' if convert_to_decimal: new_value = decimal(new_value) __state[key] = new_value return new_value @__export('con_dex_example') def change_state_float(key: str, new_value: float, convert_to_int: bool=False): assert __state['OWNER'] == ctx.caller, 'Not the owner!' if convert_to_int: new_value = int(new_value) __state[key] = new_value return new_value @__export('con_dex_example') def sync_reserves(contract: str): assert __state['SYNC_ENABLED'] is True, 'Sync is not enabled!' token = I.import_module(contract) new_balance = token.balance_of(ctx.this) assert new_balance > 0, 'Cannot be a negative balance!' __reserves[contract][1] = new_balance return new_balance def __internal_buy(contract: str, currency_amount: float): assert __pairs[contract] is True, 'RSWP Market does not exist!' if currency_amount <= 0: return 0 token = I.import_module(contract) assert I.enforce_interface(token, token_interface ), 'Invalid token interface!' currency_reserve, token_reserve = __reserves[contract] k = currency_reserve * token_reserve new_currency_reserve = currency_reserve + currency_amount new_token_reserve = k / new_currency_reserve tokens_purchased = token_reserve - new_token_reserve fee = tokens_purchased * __state['FEE_PERCENTAGE'] tokens_purchased -= fee new_token_reserve += fee assert tokens_purchased > 0, 'Token reserve error!' __reserves[contract] = [new_currency_reserve, new_token_reserve] __prices[contract] = new_currency_reserve / new_token_reserve return tokens_purchased def __internal_sell(contract: str, token_amount: float): assert __pairs[contract] is True, 'RSWP Market does not exist!' if token_amount <= 0: return 0 token = I.import_module(contract) assert I.enforce_interface(token, token_interface ), 'Invalid token interface!' currency_reserve, token_reserve = __reserves[contract] k = currency_reserve * token_reserve new_token_reserve = token_reserve + token_amount new_currency_reserve = k / new_token_reserve currency_purchased = currency_reserve - new_currency_reserve fee = currency_purchased * __state['FEE_PERCENTAGE'] currency_purchased -= fee new_currency_reserve += fee assert currency_purchased > 0, 'Token reserve error!' __reserves[contract] = [new_currency_reserve, new_token_reserve] __prices[contract] = new_currency_reserve / new_token_reserve return currency_purchased |
| Contract | con_dex_example |
| Variable | __compiled__ |
| New Value | 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|
| Contract | con_dex_example |
| Variable | __owner__ |
| New Value | null |
| Contract | con_dex_example |
| Variable | __submitted__ |
| New Value | 2023,2,1,21,27,25,0 |
| Contract | con_dex_example |
| Variable | __developer__ |
| New Value | 7c296eb80e379171f694a3c5be7640d16f300f09d731c99ac0a92f49c9c0c151 |
| Contract | currency |
| Variable | balances |
| Key | 7c296eb80e379171f694a3c5be7640d16f300f09d731c99ac0a92f49c9c0c151 |
| New Value | 61067.600915931549915131462633985763 |