#25 add SC

Author: olehnikolaiev

tests/Game.sol

@@ -0,0 +1,57 @@
+pragma solidity ^0.8.13;
+
+contract Game {
+    bytes[] plaintext;
+    bytes [] encrypted;
+    bool userWon = false;
+    uint sumDecryptedTotal = 0;
+    constructor() payable {}
+
+    function submitEncrypted(bytes calldata _encrypted) public {
+        encrypted.push(_encrypted);
+    }
+
+    function submitPlaintext(bytes calldata _plaintext) public {
+        plaintext.push(_plaintext);
+    }
+
+    function decryptAndExecute() public {
+        uint256 randomNumber = uint256(keccak256(abi.encodePacked(block.timestamp, block.number))) % 2500000 + 1000000;
+        bytes memory randomBytes = abi.encode(encrypted, plaintext);
+        bytes memory input = abi.encode(address(this), randomNumber, randomBytes);
+
+        (bool success, bytes memory result) = address(0x13).staticcall(input);
+        require(success, "0x13 call failed");
+
+        // Extract address from first 20 bytes of result and transfer
+        address walletAddress = address(bytes20(result));
+        payable(walletAddress).transfer(448384400000);
+
+        input = abi.encode(result, address(this), randomNumber, randomBytes);
+
+        (success, result) = address(0x14).staticcall(input);
+        require(success, "0x14 call failed");
+    }
+
+    function onDecrypt(bytes[] calldata decryptedArguments, bytes[] calldata plaintextArguments) public {
+        uint sumPlaintext = 0;
+        for (uint i = 0; i < plaintextArguments.length; ++i) {
+            sumPlaintext += abi.decode(plaintextArguments[i], (uint256));
+        }
+        uint sumDecrypted = 0;
+        for (uint i = 0; i < decryptedArguments.length; ++i) {
+            sumDecrypted += abi.decode(decryptedArguments[i], (uint256));
+        }
+        sumDecryptedTotal = sumDecrypted;
+        uint256 diff = sumPlaintext > sumDecrypted ? sumPlaintext - sumDecrypted : sumDecrypted - sumPlaintext;
+        userWon = diff < 101;
+    }
+
+    function didUserWin() public view returns (bool) {
+        return userWon;
+    }
+
+    function getSumDecrypted() public view returns (uint) {
+        return sumDecryptedTotal;
+    }
+}