From c0d304ea1214e39289b4a2b8a016b588ed61e274 Mon Sep 17 00:00:00 2001
From: rsproule <rsproule23@gmail.com>
Date: Tue, 2 Jan 2024 22:07:55 -0500
Subject: [PATCH] feat: require player name in contract

---
 contracts/src/libraries/Join.sol | 1 +
 1 file changed, 1 insertion(+)

diff --git a/contracts/src/libraries/Join.sol b/contracts/src/libraries/Join.sol
index bc5d94e..dae6c84 100644
--- a/contracts/src/libraries/Join.sol
+++ b/contracts/src/libraries/Join.sol
@@ -19,6 +19,7 @@ library JoinLib {
         require(players[params.joiner] == 0, "already joined");
         require(playersCount < settings.playerCount, "game is full");
         require(msg.value >= settings.buyInMinimum, "insufficient buy in");
+        require(params.playerName.length > 0, "must provide name");
         bytes32 leaf = keccak256(bytes.concat(keccak256(abi.encode(params.joiner, params.playerName))));
         require(settings.root == bytes32(0) || MerkleProof.verify(params.proof, settings.root, leaf), "invalid proof");
     }