gryph token for testing

contracts/GryphToken.sol

@@ -0,0 +1,99 @@
+// SPDX-License-Identifier: MIT
+
+pragma solidity ^0.8.0;
+
+import "@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol";
+import "@openzeppelin/contracts/token/ERC20/extensions/ERC20Capped.sol";
+
+import "@openzeppelin/contracts/utils/Context.sol";
+import "@openzeppelin/contracts/security/Pausable.sol";
+import "@openzeppelin/contracts/access/AccessControlEnumerable.sol";
+
+//
+//     ______  _______   ____  ____   _______  ____  ____  
+//   .' ___  ||_   __ \ |_  _||_  _| |_   __ \|_   ||   _| 
+//  / .'   \_|  | |__) |  \ \  / /     | |__) | | |__| |   
+//  | |   ____  |  __ /    \ \/ /      |  ___/  |  __  |   
+//  \ `.___]  |_| |  \ \_  _|  |_  _  _| |_    _| |  | |_  
+//   `._____.'|____| |___||______|(_)|_____|  |____||____| 
+//
+//  CROSS CHAIN NFT MARKETPLACE
+//  https://www.gry.ph/
+//
+
+contract GryphToken is 
+  Context, 
+  Pausable,
+  AccessControlEnumerable, 
+  ERC20Burnable, 
+  ERC20Capped 
+{
+  //all custom roles
+  bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE");
+  bytes32 public constant PAUSER_ROLE = keccak256("PAUSER_ROLE");
+
+  /**
+   * @dev Sets the name and symbol. Sets the fixed supply. 
+   * Grants `DEFAULT_ADMIN_ROLE`, `MINTER_ROLE` and `PAUSER_ROLE` 
+   * to the account that deploys the contract.
+   */
+  constructor() 
+    ERC20("Arkonia", "AOD")
+    ERC20Capped(1000000000 ether) 
+  {
+    address sender = _msgSender();
+    //set up roles for contract creator
+    _setupRole(DEFAULT_ADMIN_ROLE, sender);
+    _setupRole(MINTER_ROLE, sender);
+    _setupRole(PAUSER_ROLE, sender);
+    //prevent unauthorized transfers
+    _pause();
+  }
+
+  /**
+   * @dev Creates `amount` new tokens for `to`.
+   */
+  function mint(address to, uint256 amount) 
+    public virtual onlyRole(MINTER_ROLE)  
+  {
+    _mint(to, amount);
+  }
+
+  /**
+   * @dev Pauses all token transfers.
+   */
+  function pause() public virtual onlyRole(PAUSER_ROLE) {
+    _pause();
+  }
+
+  /**
+   * @dev Unpauses all token transfers.
+   */
+  function unpause() public virtual onlyRole(PAUSER_ROLE) {
+    _unpause();
+  }
+
+  /**
+   * @dev Checks blacklist before token transfer
+   */
+  function _beforeTokenTransfer(
+    address from,
+    address to,
+    uint256 amount
+  ) internal virtual override {
+    if (!hasRole(MINTER_ROLE, _msgSender()) && !hasRole(MINTER_ROLE, from)) {
+      require(!paused(), "Token transfer while paused");
+    }
+
+    super._beforeTokenTransfer(from, to, amount);
+  }
+
+  /**
+   * @dev See {ERC20-_mint}.
+   */
+  function _mint(address account, uint256 amount) 
+    internal virtual override(ERC20, ERC20Capped) 
+  {
+    super._mint(account, amount);
+  }
+}