Created
June 2, 2018 19:39
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TILT TOken ERC20
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pragma solidity ^0.4.11; | |
import './IERC20.sol'; | |
import './SafeMath.sol'; | |
contract TToken is IERC20{ | |
using SafeMath for uint256; | |
uint public constant _totalSupply = 0; | |
string public constant symbol = "TTO"; | |
string public constant name = "Tilt TOKEN"; | |
uint8 public constant decimals = 18; | |
uint256 public constant RATE = 500; | |
address public owner; | |
mapping(address => uint256) balances; | |
mapping(address => mapping(address => uint256)) allowed; | |
function TToken(){ | |
owner=msg.sender; | |
} | |
function () payable{ | |
createTokens(); | |
} | |
function createTokens() payable{ | |
require(msg.value>0); | |
uint256 tokens = msg.value.mul(RATE); | |
balances[msg.sender] = balances[msg.sender].add(tokens); | |
owner.transfer(msg.value); | |
} | |
function totalSupply() constant returns (uint256 totalSupply){ | |
return _totalSupply; | |
} | |
function balanceOf(address _owner) constant returns (uint256 balance){ | |
return balances[_owner]; | |
} | |
function transfer(address _to, uint256 _value) returns (bool success){ | |
require( | |
balances[msg.sender] >= _value | |
&& _value > 0 | |
); | |
balances[msg.sender] = balances[msg.sender].sub(_value); | |
balances[_to] = balances[_to].add(_value); | |
Transfer (msg.sender,_to,_value); | |
return true; | |
} | |
function transferFrom(address _from, address _to, uint256 _value) returns (bool success){ | |
require( | |
allowed[_from][msg.sender] >= _value | |
&& balances[_from] >= _value | |
&& _value > 0 | |
); | |
balances[_from] = balances[_from].sub(_value); | |
balances[_to] = balances[_to].add(_value); | |
allowed[_from][msg.sender] =allowed[_from][msg.sender].sub(_value); | |
Transfer(_from,_to,_value); | |
return true; | |
} | |
function approve(address _spender, uint256 _value) returns (bool success){ | |
allowed[msg.sender][_spender] = _value; | |
Approval(msg.sender,_spender,_value); | |
return true; | |
} | |
function allowance(address _owner, address _spender) constant returns (uint256 remaining){ | |
return allowed[_owner][_spender]; | |
} | |
event Transfer(address indexed _from, address indexed _to, uint256 _value); | |
event Approval(address indexed _owner, address indexed _spender, uint256 _value); | |
} |
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