From 82d58524d1ed9fb1eea3da205cd6baff465a8c04 Mon Sep 17 00:00:00 2001
From: 0xb337r007 <0xe4e5@proton.me>
Date: Mon, 15 May 2023 11:21:08 +0200
Subject: [PATCH] don't transfer if it's a souldbound token

---
 contracts/mvp/CollectibleV1.sol | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/contracts/mvp/CollectibleV1.sol b/contracts/mvp/CollectibleV1.sol
index 5c65fc7..abe1d61 100644
--- a/contracts/mvp/CollectibleV1.sol
+++ b/contracts/mvp/CollectibleV1.sol
@@ -117,6 +117,9 @@ contract CollectibleV1 is
         uint256 firstTokenId,
         uint256 batchSize
     ) internal virtual override(ERC721Enumerable) {
+        if (from != address(0) && to != address(0) && !transferable) {
+            revert("not transferable");
+        }
         super._beforeTokenTransfer(from, to, firstTokenId, batchSize);
     }