Contract Name:
VixcoreToken2
Contract Source Code:
File 1 of 1 : VixcoreToken2
pragma solidity ^0.4.16;
contract Owned {
address public owner;
function Owned() public {
owner = msg.sender;
}
modifier onlyOwner {
require(msg.sender == owner);
_;
}
function transferOwnership(address newOwner) public onlyOwner {
owner = newOwner;
}
}
interface tokenRecipient { function receiveApproval(address _from, uint256 _value, address _token, bytes _extraData) external; }
contract VixcoreToken2 is Owned {
// Public variables of the token
string public name;
string public symbol;
uint8 public decimals = 18;
// 18 decimals is the strongly suggested default, avoid changing it
uint256 public totalSupply;
// This creates an array with all balances
mapping (address => uint256) public balanceOf;
uint public totalTokenSold;
uint public totalWeiReceived;
uint public weiBalance;
//EVENTS
// This generates a public event on the blockchain that will notify clients
event Transfer(address indexed from, address indexed to, uint256 value);
// This generates a public event on the blockchain that will notify clients
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
// This notifies clients about the amount burnt
event Burn(address indexed from, uint256 value);
//ETH Withdrawn
event Withdrawal(address receiver, uint amount);
//Token is purchased using Selfdrop
event Selfdrop(address backer, uint weiAmount, uint token);
//Over softcap set for Selfdrop
event OverSoftCap(address receiver, uint weiAmount);
/**
* Constructor function
*
* Initializes contract with initial supply tokens to the creator of the contract
*/
function VixcoreToken2(
uint256 initialSupply,
string tokenName,
string tokenSymbol
) public {
totalSupply = initialSupply * 10 ** uint256(decimals); // Update total supply with the decimal amount
balanceOf[msg.sender] = totalSupply; // Give the creator all initial tokens
name = tokenName; // Set the name for display purposes
symbol = tokenSymbol; // Set the symbol for display purposes
owner = msg.sender;
}
/**
* Internal transfer, only can be called by this contract
*/
function _transfer(address _from, address _to, uint _value) internal {
// Prevent transfer to 0x0 address. Use burn() instead
require(_to != 0x0);
// Check if the sender has enough
require(balanceOf[_from] >= _value);
// Check for overflows
require(balanceOf[_to] + _value >= balanceOf[_to]);
// Save this for an assertion in the future
uint previousBalances = balanceOf[_from] + balanceOf[_to];
// Subtract from the sender
balanceOf[_from] -= _value;
// Add the same to the recipient
balanceOf[_to] += _value;
emit Transfer(_from, _to, _value);
// Asserts are used to use static analysis to find bugs in your code. They should never fail
assert(balanceOf[_from] + balanceOf[_to] == previousBalances);
}
/**
* Transfer tokens
*
* Send `_value` tokens to `_to` from your account
*
* @param _to The address of the recipient
* @param _value the amount to send
*/
function transfer(address _to, uint256 _value) public returns (bool success) {
_transfer(msg.sender, _to, _value);
return true;
}
/**
* Default function when someone's transferring to this contract
* The next 3 functions are the same
*/
function () payable public {
_pay();
}
function pay() payable public {
_pay();
}
function _pay() internal {
uint weiValue = msg.value;
uint phase1 = 2500000000000000000000000000;
uint phase2 = phase1 + 1500000000000000000000000000;
uint phase3 = phase2 + 1000000000000000000000000000; //phase 3 should be less than supply
if(totalTokenSold <= phase1){
_exchange(weiValue, 5000000);
}else if(totalTokenSold <= phase2){
_exchange(weiValue, 4000000);
}else if(totalTokenSold <= phase3){
_exchange(weiValue, 3500000);
}else{
emit OverSoftCap(msg.sender, weiValue);
}
}
function _exchange(uint weiValue, uint rate) internal {
uint tokenEquiv = tokenEquivalent(weiValue, rate);
_transfer(owner, msg.sender, tokenEquiv);
totalWeiReceived += weiValue;
weiBalance += weiValue;
totalTokenSold += tokenEquiv;
emit Selfdrop(msg.sender, weiValue, tokenEquiv);
}
function tokenEquivalent(uint weiValue, uint rate) public returns (uint) {
return weiValue * rate;
}
/**
* Withdraw the funds
*
* Send the benefeciary some Wei
* This function will emit the Withdrawal event if send it successful
* Only owner can call this function
*/
function withdraw(uint _amount) onlyOwner public {
require(_amount > 0);
require(_amount <= weiBalance); // Amount withdraw should be less or equal to balance
if (owner.send(_amount)) {
weiBalance -= _amount;
emit Withdrawal(owner, _amount);
}else{
throw;
}
}
}