Address Contract Verified
Address
0x1E3F3f7528020f3CA1E5d1A90a92ab9dC49CFbd4
Balance
0 ETH
Nonce
1
Code Size
2212 bytes
Creator
0xB7cfa0de...B227 at tx 0x95b0384b...fea7bb
Indexed Transactions
0
Contract Bytecode
2212 bytes
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Verified Source Code Full Match
Compiler: v0.8.24+commit.e11b9ed9
EVM: shanghai
Optimization: Yes (200 runs)
DryadPresale.sol 80 lines
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
/// @notice Minimal ERC20 interface
interface IERC20 {
function transfer(address to, uint256 amount) external returns (bool);
function decimals() external view returns (uint8);
function balanceOf(address account) external view returns (uint256);
}
contract DryadPresale {
address public immutable DRYD_TOKEN;
address public immutable recipient;
uint256 public immutable DRYD_PER_ETH; // DRYD tokens per 1 ETH (token units!)
uint256 public immutable MAX_DRYD_SOLD; // max in token's smallest units (e.g., 1_000_000_000e18)
uint256 public drydSold; // in token's smallest units
address public immutable owner;
event Purchased(address indexed buyer, uint256 ethSpent, uint256 drydSent);
event EmergencyWithdrawal(uint256 drydAmount, address indexed to);
constructor(
address drydToken_,
address recipient_,
uint256 drydPerEth_,
uint256 maxDrydSold_
) {
require(drydToken_ != address(0) && recipient_ != address(0), "Zero addr");
DRYD_TOKEN = drydToken_;
recipient = recipient_;
DRYD_PER_ETH = drydPerEth_; // e.g. 100_000_000e18 (if 18 decimals)
MAX_DRYD_SOLD = maxDrydSold_; // e.g. 1_000_000_000e18
owner = msg.sender;
}
receive() external payable {
buyDryd();
}
function buyDryd() public payable {
require(msg.value > 0, "No ETH sent");
uint8 decimals = IERC20(DRYD_TOKEN).decimals();
// Compute DRYD amount in token's smallest units
// Formula: msg.value * DRYD_PER_ETH / 1 ether
uint256 drydAmount = (msg.value * DRYD_PER_ETH) / 1 ether;
require(drydSold + drydAmount <= MAX_DRYD_SOLD, "Presale sold out");
// Contract must be funded with at least MAX_DRYD_SOLD DRYD tokens (in smallest units)
require(
IERC20(DRYD_TOKEN).balanceOf(address(this)) >= drydAmount,
"Not enough DRYD in presale"
);
// Transfer DRYD to buyer
require(IERC20(DRYD_TOKEN).transfer(msg.sender, drydAmount), "DRYD transfer failed");
// Forward ETH to recipient
(bool ok, ) = recipient.call{value: msg.value}("");
require(ok, "ETH forward failed");
drydSold += drydAmount;
emit Purchased(msg.sender, msg.value, drydAmount);
}
/// @notice How much DRYD is left for sale (in token units)
function presaleLeft() external view returns (uint256) {
return MAX_DRYD_SOLD - drydSold;
}
/// @notice Allow owner to withdraw any remaining DRYD after presale ends
function withdrawRemainingDryd(address to) external {
require(msg.sender == owner, "Not owner");
uint256 bal = IERC20(DRYD_TOKEN).balanceOf(address(this));
require(IERC20(DRYD_TOKEN).transfer(to, bal), "Withdraw failed");
emit EmergencyWithdrawal(bal, to);
}
}
Read Contract
DRYD_PER_ETH 0xe889806b → uint256
DRYD_TOKEN 0x33e1a48e → address
MAX_DRYD_SOLD 0x797a6815 → uint256
drydSold 0x122a0a52 → uint256
owner 0x8da5cb5b → address
presaleLeft 0xba3bb489 → uint256
recipient 0x66d003ac → address
Write Contract 2 functions
These functions modify contract state and require a wallet transaction to execute.
buyDryd 0xd46784d1
No parameters
withdrawRemainingDryd 0x576e17b8
address to
Recent Transactions
No transactions found for this address