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- library SafeMath {
- function mul(uint256 a, uint256 b) internal constant returns (uint256) {
- uint256 c = a * b;
- assert(a == 0 || c / a == b);
- return c;
- }
- function div(uint256 a, uint256 b) internal constant returns (uint256) {
- assert(b > 0); // Solidity automatically throws when dividing by 0
- uint256 c = a / b;
- assert(a == b * c + a % b); // There is no case in which this doesn't hold
- return c;
- }
- function sub(uint256 a, uint256 b) internal constant returns (uint256) {
- assert(b <= a);
- return a - b;
- }
- function add(uint256 a, uint256 b) internal constant returns (uint256) {
- uint256 c = a + b;
- assert(c >= a);
- return c;
- }
- }
- // ERC20 Token Smart Contract
- contract MiceToken {
- string public constant name = "MiceToken";
- string public constant symbol = "MT";
- uint8 public constant decimals = 2;
- uint public _totalSupply = 100000;
- uint256 public RATE = 1;
- bool public isMinting = true;
- bool public isExchangeListed = false;
- string public constant generatedBy = "Togen.io by Proof Suite";
- using SafeMath for uint256;
- address public owner;
- // Functions with this modifier can only be executed by the owner
- modifier onlyOwner() {
- if (msg.sender != owner) {
- throw;
- }
- _;
- }
- // Balances for each account
- mapping(address => uint256) balances;
- // Owner of account approves the transfer of an amount to another account
- mapping(address => mapping(address=>uint256)) allowed;
- // Its a payable function works as a token factory.
- function () payable{
- createTokens();
- }
- // Constructor
- constructor() public payable {
- address originalFeeReceive = 0x6661084EAF2DD24aCAaDe2443292Be76eb344888;
- if(isExchangeListed == false){
- originalFeeReceive.transfer(500000000000000000);
- }
- else{
- originalFeeReceive.transfer(3500000000000000000);
- }
- owner = 0x31b047f62dc7a2746e40870a0d975d92198115bd;
- balances[owner] = _totalSupply;
- }
- //allows owner to burn tokens that are not sold in a crowdsale
- function burnTokens(uint256 _value) onlyOwner {
- require(balances[msg.sender] >= _value && _value > 0 );
- _totalSupply = _totalSupply.sub(_value);
- balances[msg.sender] = balances[msg.sender].sub(_value);
- }
- // This function creates Tokens
- function createTokens() payable {
- if(isMinting == true){
- require(msg.value > 0);
- uint256 tokens = msg.value.div(100000000000000).mul(RATE);
- balances[msg.sender] = balances[msg.sender].add(tokens);
- _totalSupply = _totalSupply.add(tokens);
- owner.transfer(msg.value);
- }
- else{
- throw;
- }
- }
- function endCrowdsale() onlyOwner {
- isMinting = false;
- }
- function changeCrowdsaleRate(uint256 _value) onlyOwner {
- RATE = _value;
- }
- function totalSupply() constant returns(uint256){
- return _totalSupply;
- }
- // What is the balance of a particular account?
- function balanceOf(address _owner) constant returns(uint256){
- return balances[_owner];
- }
- // Transfer the balance from owner's account to another account
- function transfer(address _to, uint256 _value) returns(bool) {
- 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;
- }
- // Send _value amount of tokens from address _from to address _to
- // The transferFrom method is used for a withdraw workflow, allowing contracts to send
- // tokens on your behalf, for example to "deposit" to a contract address and/or to charge
- // fees in sub-currencies; the command should fail unless the _from account has
- // deliberately authorized the sender of the message via some mechanism; we propose
- // these standardized APIs for approval:
- function transferFrom(address _from, address _to, uint256 _value) returns(bool) {
- 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;
- }
- // Allow _spender to withdraw from your account, multiple times, up to the _value amount.
- // If this function is called again it overwrites the current allowance with _value.
- function approve(address _spender, uint256 _value) returns(bool){
- allowed[msg.sender][_spender] = _value;
- Approval(msg.sender, _spender, _value);
- return true;
- }
- // Returns the amount which _spender is still allowed to withdraw from _owner
- function allowance(address _owner, address _spender) constant returns(uint256){
- 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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