contract RoyalFunders is ERC20Interface, Owned, SafeMath {

string public symbol;

string public name;

uint8 public decimals;

uint public _totalSupply;

mapping(address => uint) balances;

mapping(address => mapping(address => uint)) allowed;

 

// ------------------------------------------------------------------------

// Constructor

// ------------------------------------------------------------------------

constructor() public {

symbol = "RFT";

name = "RoyalFunders";

decimals = 6;

_totalSupply = 10000000000;

balances[0xACa5D492E8BD85828db5553280090d908d498a72] = _totalSupply;

emit Transfer(address(0), 0xACa5D492E8BD85828db5553280090d908d498a72, _totalSupply);

}

 

// ------------------------------------------------------------------------

// Total supply

// ------------------------------------------------------------------------

function totalSupply() public override view returns (uint) {

return _totalSupply - balances[address(0)];

}

 

// ------------------------------------------------------------------------

// Get the token balance for account tokenOwner

// ------------------------------------------------------------------------

function balanceOf(address tokenOwner) public override view returns (uint balance) {

return balances[tokenOwner];

}

 

// ------------------------------------------------------------------------

// Transfer the balance from token owner's account to to account

// - Owner's account must have sufficient balance to transfer

// - 0 value transfers are allowed

// ------------------------------------------------------------------------

function transfer(address to, uint tokens) public override returns (bool success) {

balances[msg.sender] = safeSub(balances[msg.sender], tokens);

balances[to] = safeAdd(balances[to], tokens);

emit Transfer(msg.sender, to, tokens);

return true;

}

 

// ------------------------------------------------------------------------

// Token owner can approve for spender to transferFrom(...) tokens

// from the token owner's account

//

// https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md

// recommends that there are no checks for the approval double-spend attack

// as this should be implemented in user interfaces

// ------------------------------------------------------------------------

function approve(address spender, uint tokens) public override returns (bool success) {

allowed[msg.sender][spender] = tokens;

emit Approval(msg.sender, spender, tokens);

return true;

}

 

// ------------------------------------------------------------------------

// Transfer tokens from the from account to the to account

//

// The calling account must already have sufficient tokens approve(...)-d

// for spending from the from account and

// - From account must have sufficient balance to transfer

// - Spender must have sufficient allowance to transfer

// - 0 value transfers are allowed

// ------------------------------------------------------------------------

function transferFrom(address from, address to, uint tokens) public override returns (bool success) {

balances[from] = safeSub(balances[from], tokens);

allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens);

balances[to] = safeAdd(balances[to], tokens);

emit Transfer(from, to, tokens);

return true;

}

 

// ------------------------------------------------------------------------

// Returns the amount of tokens approved by the owner that can be

// transferred to the spender's account

// ------------------------------------------------------------------------

function allowance(address tokenOwner, address spender) public override view returns (uint remaining) {

return allowed[tokenOwner][spender];

}

 

// ------------------------------------------------------------------------

// Token owner can approve for spender to transferFrom(...) tokens

// from the token owner's account. The spender contract function

// receiveApproval(...) is then executed

// ------------------------------------------------------------------------

function approveAndCall(address spender, uint tokens, bytes memory data) public returns (bool success) {

allowed[msg.sender][spender] = tokens;

emit Approval(msg.sender, spender, tokens);

ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, address(this), data);

return true;

}

 

// ------------------------------------------------------------------------

// Don't accept ETH

// ------------------------------------------------------------------------

// function () external payable {

// revert();

// }

 

// ------------------------------------------------------------------------

// Owner can transfer out any accidentally sent ERC20 tokens

// ------------------------------------------------------------------------

function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) {

return ERC20Interface(tokenAddress).transfer(owner, tokens);

}

}
// ----------------------------------------------------------------------------
// ERC20 Token, with the addition of symbol, name and decimals and assisted
// token transfers
// ----------------------------------------------------------------------------
function approve(address spender, uint tokens) public override returns (bool success) {

allowed[msg.sender][spender] = tokens;

emit Approval(msg.sender, spender, tokens);

return true;

}

// ------------------------------------------------------------------------
// Token owner can approve for spender to transferFrom(...) tokens
// from the token owner's account
//
// https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md
// recommends that there are no checks for the approval double-spend attack
// as this should be implemented in user interfaces
// ------------------------------------------------------------------------