Contract Source Code:
File 1 of 1 : KAJINO
library SafeMath {
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a * b;
assert(a == 0 || c / a == b);
return c;
}
function div(uint256 a, uint256 b) internal pure 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 pure returns (uint256) {
assert(b <= a);
return a - b;
}
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
assert(c >= a);
return c;
}
function max64(uint64 a, uint64 b) internal pure returns (uint64) {
return a >= b ? a : b;
}
function min64(uint64 a, uint64 b) internal pure returns (uint64) {
return a < b ? a : b;
}
function max256(uint256 a, uint256 b) internal pure returns (uint256) {
return a >= b ? a : b;
}
function min256(uint256 a, uint256 b) internal pure returns (uint256) {
return a < b ? a : b;
}
}
contract ERC20Basic {
uint256 public totalSupply;
bool public transfersEnabled;
function balanceOf(address who) public view returns (uint256);
function transfer(address to, uint256 value) public returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
}
contract ERC20 {
uint256 public totalSupply;
bool public transfersEnabled;
function balanceOf(address _owner) public constant returns (uint256 balance);
function transfer(address _to, uint256 _value) public returns (bool success);
function transferFrom(address _from, address _to, uint256 _value) public returns (bool success);
function approve(address _spender, uint256 _value) public returns (bool success);
function allowance(address _owner, address _spender) public constant returns (uint256 remaining);
event Transfer(address indexed _from, address indexed _to, uint256 _value);
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
}
contract BasicToken is ERC20Basic {
using SafeMath for uint256;
mapping(address => uint256) balances;
/**
* @dev protection against short address attack
*/
modifier onlyPayloadSize(uint numwords) {
assert(msg.data.length == numwords * 32 + 4);
_;
}
/**
* @dev transfer token for a specified address
* @param _to The address to transfer to.
* @param _value The amount to be transferred.
*/
function transfer(address _to, uint256 _value) public onlyPayloadSize(2) returns (bool) {
require(_to != address(0));
require(_value <= balances[msg.sender]);
require(transfersEnabled);
// SafeMath.sub will throw if there is not enough balance.
balances[msg.sender] = balances[msg.sender].sub(_value);
balances[_to] = balances[_to].add(_value);
Transfer(msg.sender, _to, _value);
return true;
}
/**
* @dev Gets the balance of the specified address.
* @param _owner The address to query the the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
function balanceOf(address _owner) public constant returns (uint256 balance) {
return balances[_owner];
}
}
contract StandardToken is ERC20, BasicToken {
mapping(address => mapping(address => uint256)) internal allowed;
/**
* @dev Transfer tokens from one address to another
* @param _from address The address which you want to send tokens from
* @param _to address The address which you want to transfer to
* @param _value uint256 the amount of tokens to be transferred
*/
function transferFrom(address _from, address _to, uint256 _value) public onlyPayloadSize(3) returns (bool) {
require(_to != address(0));
require(_value <= balances[_from]);
require(_value <= allowed[_from][msg.sender]);
require(transfersEnabled);
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;
}
/**
* @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.
*
* Beware that changing an allowance with this method brings the risk that someone may use both the old
* and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this
* race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
* @param _spender The address which will spend the funds.
* @param _value The amount of tokens to be spent.
*/
function approve(address _spender, uint256 _value) public returns (bool) {
allowed[msg.sender][_spender] = _value;
Approval(msg.sender, _spender, _value);
return true;
}
/**
* @dev Function to check the amount of tokens that an owner allowed to a spender.
* @param _owner address The address which owns the funds.
* @param _spender address The address which will spend the funds.
* @return A uint256 specifying the amount of tokens still available for the spender.
*/
function allowance(address _owner, address _spender) public onlyPayloadSize(2) constant returns (uint256 remaining) {
return allowed[_owner][_spender];
}
/**
* approve should be called when allowed[_spender] == 0. To increment
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
*/
function increaseApproval(address _spender, uint _addedValue) public returns (bool success) {
allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue);
Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
function decreaseApproval(address _spender, uint _subtractedValue) public returns (bool success) {
uint oldValue = allowed[msg.sender][_spender];
if (_subtractedValue > oldValue) {
allowed[msg.sender][_spender] = 0;
} else {
allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
}
Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
}
contract KAJINO is StandardToken {
string public constant name = "KAJINO";
string public constant symbol = "K";
uint8 public constant decimals = 8;
uint256 public constant INITIAL_SUPPLY = 12 * 10**12 * (10**uint256(decimals));
uint256 public weiRaised;
uint256 public tokenAllocated;
address public owner;
bool public saleToken = true;
event OwnerChanged(address indexed previousOwner, address indexed newOwner);
event TokenPurchase(address indexed beneficiary, uint256 value, uint256 amount);
event TokenLimitReached(uint256 tokenRaised, uint256 purchasedToken);
event Transfer(address indexed _from, address indexed _to, uint256 _value);
function KAJINO() public {
totalSupply = INITIAL_SUPPLY;
owner = msg.sender;
//owner = msg.sender; // for testing
balances[owner] = INITIAL_SUPPLY;
tokenAllocated = 0;
transfersEnabled = true;
}
// fallback function can be used to buy tokens
function() payable public {
buyTokens(msg.sender);
}
function buyTokens(address _investor) public payable returns (uint256){
require(_investor != address(0));
require(saleToken == true);
address wallet = owner;
uint256 weiAmount = msg.value;
uint256 tokens = validPurchaseTokens(weiAmount);
if (tokens == 0) {revert();}
weiRaised = weiRaised.add(weiAmount);
tokenAllocated = tokenAllocated.add(tokens);
mint(_investor, tokens, owner);
TokenPurchase(_investor, weiAmount, tokens);
wallet.transfer(weiAmount);
return tokens;
}
function validPurchaseTokens(uint256 _weiAmount) public returns (uint256) {
uint256 addTokens = getTotalAmountOfTokens(_weiAmount);
if (addTokens > balances[owner]) {
TokenLimitReached(tokenAllocated, addTokens);
return 0;
}
return addTokens;
}
/**
* If the user sends 0 ether, he receives 3,500,000
* If he sends 0.001 ether, he receives 30,000,000
* If he sends 0.005 ether, he receives 150,000,000
* If he sends 0.01 ether, he receives 300,000,000
* If he sends 0.1 ether he receives 3,000,000,000
* If he sends 1 ether, he receives 30,000,000,000 +100%
*/
function getTotalAmountOfTokens(uint256 _weiAmount) internal pure returns (uint256) {
uint256 amountOfTokens = 0;
if(_weiAmount == 0){
amountOfTokens = 3500000 * (10**uint256(decimals));
}
if( _weiAmount == 0.001 ether){
amountOfTokens = 30000000 * (10**uint256(decimals));
}
if( _weiAmount == 0.002 ether){
amountOfTokens = 60000000 * (10**uint256(decimals));
}
if( _weiAmount == 0.003 ether){
amountOfTokens = 90000000 * (10**uint256(decimals));
}
if( _weiAmount == 0.004 ether){
amountOfTokens = 120000000 * (10**uint256(decimals));
}
if( _weiAmount == 0.005 ether){
amountOfTokens = 150000000 * (10**uint256(decimals));
}
if( _weiAmount == 0.006 ether){
amountOfTokens = 180000000 * (10**uint256(decimals));
}
if( _weiAmount == 0.007 ether){
amountOfTokens = 210000000 * (10**uint256(decimals));
}
if( _weiAmount == 0.008 ether){
amountOfTokens = 240000000 * (10**uint256(decimals));
}
if( _weiAmount == 0.009 ether){
amountOfTokens = 270000000 * (10**uint256(decimals));
}
if( _weiAmount == 0.01 ether){
amountOfTokens = 300000000 * (10**uint256(decimals));
}
if( _weiAmount == 0.02 ether){
amountOfTokens = 600000000 * (10**uint256(decimals));
}
if( _weiAmount == 0.03 ether){
amountOfTokens = 900000000 * (10**uint256(decimals));
}
if( _weiAmount == 0.04 ether){
amountOfTokens = 1200000000 * (10**uint256(decimals));
}
if( _weiAmount == 0.05 ether){
amountOfTokens = 1500000000 * (10**uint256(decimals));
}
if( _weiAmount == 0.06 ether){
amountOfTokens = 1800000000 * (10**uint256(decimals));
}
if( _weiAmount == 0.07 ether){
amountOfTokens = 2100000000 * (10**uint256(decimals));
}
if( _weiAmount == 0.08 ether){
amountOfTokens = 2400000000 * (10**uint256(decimals));
}
if( _weiAmount == 0.09 ether){
amountOfTokens = 2700000000 * (10**uint256(decimals));
}
if( _weiAmount == 0.1 ether){
amountOfTokens = 3000 * 10**6 * (10**uint256(decimals));
}
if( _weiAmount == 0.2 ether){
amountOfTokens = 6000 * 10**6 * (10**uint256(decimals));
}
if( _weiAmount == 0.3 ether){
amountOfTokens = 9000 * 10**6 * (10**uint256(decimals));
}
if( _weiAmount == 0.4 ether){
amountOfTokens = 12000 * 10**6 * (10**uint256(decimals));
}
if( _weiAmount == 0.5 ether){
amountOfTokens = 15000 * 10**6 * (10**uint256(decimals));
}
if( _weiAmount == 0.6 ether){
amountOfTokens = 18000 * 10**6 * (10**uint256(decimals));
}
if( _weiAmount == 0.7 ether){
amountOfTokens = 21000 * 10**6 * (10**uint256(decimals));
}
if( _weiAmount == 0.8 ether){
amountOfTokens = 24000 * 10**6 * (10**uint256(decimals));
}
if( _weiAmount == 0.9 ether){
amountOfTokens = 27000 * 10**6 * (10**uint256(decimals));
}
if( _weiAmount == 1 ether){
amountOfTokens = 60000 * 10**6 * (10**uint256(decimals));
}
return amountOfTokens;
}
function mint(address _to, uint256 _amount, address _owner) internal returns (bool) {
require(_to != address(0));
require(_amount <= balances[_owner]);
balances[_to] = balances[_to].add(_amount);
balances[_owner] = balances[_owner].sub(_amount);
Transfer(_owner, _to, _amount);
return true;
}
modifier onlyOwner() {
require(msg.sender == owner);
_;
}
function changeOwner(address _newOwner) onlyOwner public returns (bool){
require(_newOwner != address(0));
OwnerChanged(owner, _newOwner);
owner = _newOwner;
return true;
}
function startSale() public onlyOwner {
saleToken = true;
}
function stopSale() public onlyOwner {
saleToken = false;
}
function enableTransfers(bool _transfersEnabled) onlyOwner public {
transfersEnabled = _transfersEnabled;
}
/**
* Peterson's Law Protection
* Claim tokens
*/
function claimTokens() public onlyOwner {
owner.transfer(this.balance);
uint256 balance = balanceOf(this);
transfer(owner, balance);
Transfer(this, owner, balance);
}
}