Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

// SPDX-License-Identifier: MIT
//
// ...............   ...............   ...............  .....   ...............
// :==============.  ===============  :==============:  -====  .==============-
// :==============.  ===============  :==============:  -====  .==============-
// :==============.  ===============  :==============:  -====  .==============-
// :==============.  ===============  :==============:  -====  .==============-
// .::::-====-::::.  ===============  :====-:::::::::.  -====  .====-::::-====-
//      :====.       ===============  :====:            -====  .====:    .====-
//      :====.       ===============  :====:            -====  .====:    .====-
//
// Learn more at https://topia.gg or Twitter @TOPIAgg

pragma solidity 0.8.18;

import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

contract WRLD_To_TOPIA_Migration is Ownable {
  IERC20 private immutable wrld1Token;
  IERC20 private immutable wrld2Token;
  IERC20 private immutable topiaToken;

  constructor(address wrld1TokenAddress, address wrld2TokenAddress, address topiaTokenAddress) {
    wrld1Token = IERC20(wrld1TokenAddress);
    wrld2Token = IERC20(wrld2TokenAddress);
    topiaToken = IERC20(topiaTokenAddress);
  }

  function swapWrld1ToTopia(uint256 amount) external {
    require(topiaToken.balanceOf(address(this)) >= amount, "Migration contract requires $TOPIA refill");
    wrld1Token.transferFrom(msg.sender, address(this), amount);
    topiaToken.transfer(msg.sender, amount);
  }

  function swapWrld2ToTopia(uint256 amount) external {
    uint256 swapAmount = amount * 952381 / 1000000; // reversion of the prior 5% wrld 1.0 -> 2.0 bonus.
    require(topiaToken.balanceOf(address(this)) >= swapAmount, "Migration contract requires $TOPIA refill");
    wrld2Token.transferFrom(msg.sender, address(this), amount);
    topiaToken.transfer(msg.sender, swapAmount);
  }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: 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
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `from` to `to` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 1000000
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"wrld1TokenAddress","type":"address"},{"internalType":"address","name":"wrld2TokenAddress","type":"address"},{"internalType":"address","name":"topiaTokenAddress","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"swapWrld1ToTopia","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"swapWrld2ToTopia","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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

000000000000000000000000d5d86fc8d5c0ea1ac1ac5dfab6e529c9967a45e9000000000000000000000000ff2d6934fb49e3e883dc03871d081a1c21ad7984000000000000000000000000ccccb68e1a848cbdb5b60a974e07aae143ed40c3

-----Decoded View---------------
Arg [0] : wrld1TokenAddress (address): 0xD5d86FC8d5C0Ea1aC1Ac5Dfab6E529c9967a45E9
Arg [1] : wrld2TokenAddress (address): 0xFF2d6934fb49e3e883Dc03871D081a1C21ad7984
Arg [2] : topiaTokenAddress (address): 0xcccCb68e1A848CBDB5b60a974E07aAE143ed40C3

-----Encoded View---------------
3 Constructor Arguments found :
Arg [0] : 000000000000000000000000d5d86fc8d5c0ea1ac1ac5dfab6e529c9967a45e9
Arg [1] : 000000000000000000000000ff2d6934fb49e3e883dc03871d081a1c21ad7984
Arg [2] : 000000000000000000000000ccccb68e1a848cbdb5b60a974e07aae143ed40c3