Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

MTR contract v2 #1

Open
wants to merge 2 commits into
base: master
Choose a base branch
from
Open

MTR contract v2 #1

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
b7e3032
add args to constructor
emtesenair Feb 3, 2020
8d0e3d0
update error message
emtesenair Feb 3, 2020
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Jump to
Jump to file
Failed to load files.
Diff view
Diff view
32 changes: 12 additions & 20 deletions contracts/Matter.sol
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -26,21 +26,23 @@ contract Matter is ERC20, ERC20Detailed, Ownable {
using SafeMath for uint256;

uint8 public mintHour;
address public bank;
address public mintAddress;
uint256 public maxSupply;
uint256 private _lastMintedBlockTimestamp;
uint256 private _mintMTRChunk;
uint256 private _minMintInterval;
uint256 constant private SECONDS_PER_DAY = 86400;
uint256 constant private SECONDS_PER_HOUR = 3600;

constructor() public ERC20Detailed("Matter", "MTR", 18) {
bank = msg.sender;
constructor(address _initialMintAddress, uint256 _initialSupply) public ERC20Detailed("Matter", "MTR", 18) {
mintAddress = _initialMintAddress;
mintHour = 21;
maxSupply = 433494437000000000000000000;
_mintMTRChunk = 1000000000000000000000;
_lastMintedBlockTimestamp = 1;
_minMintInterval = 36000; // Seconds

_mint(_initialMintAddress, _initialSupply);
}

/*
Expand All @@ -58,22 +60,12 @@ contract Matter is ERC20, ERC20Detailed, Ownable {
}

/*
* @notice set bank address
* @notice must be contract owner
* @param newAddress The new bank address where freshly minted MTR will be sent
*/
function setBank(address newAddress) public onlyOwner returns (bool success) {
bank = newAddress;
return true;
}

/*
* @notice set mintHour
* @notice set mint address
* @notice must be contract owner
* @param newMintHour An hour from 1-23 UTC where minting will be alloud to occur
* @param newAddress The new mint address where freshly minted MTR will be sent
*/
function setMintHour(uint8 newMintHour) public onlyOwner returns (bool success) {
mintHour = newMintHour;
function setMintAddress(address newAddress) public onlyOwner returns (bool success) {
mintAddress = newAddress;
return true;
}

Expand All @@ -95,7 +87,7 @@ contract Matter is ERC20, ERC20Detailed, Ownable {

function mint(uint256 _timestamp) private returns (bool) {
require(totalSupply().add(_mintMTRChunk) <= maxSupply, "MTR: Cannot mint more than max supply"); // overflow checks
_mint(bank, _mintMTRChunk);
_mint(mintAddress, _mintMTRChunk);
_lastMintedBlockTimestamp = _timestamp;
return true;
}
Expand All @@ -106,9 +98,9 @@ contract Matter is ERC20, ERC20Detailed, Ownable {
*/
function mint() public returns (bool) {
uint256 thisTimestamp = block.timestamp;
require(thisTimestamp.sub(_lastMintedBlockTimestamp) > _minMintInterval, "MTR: The required time period has not passed");
require(thisTimestamp.sub(_lastMintedBlockTimestamp) > _minMintInterval, "MTR: Cannot mint more than once per period");
uint256 currentHour = getHour(thisTimestamp);
require(currentHour == mintHour, "MTR: Can only mint during the minting hour");
require(currentHour == mintHour, "MTR: Can only mint during the minting period");
mint(thisTimestamp);
return true;
}
Expand Down