From 1a0f6944e2cd65e586cd65c7e79482c3b1668a10 Mon Sep 17 00:00:00 2001
From: Sybrand Aarnoutse <sybrand@neuralcoding.com>
Date: Tue, 7 Jul 2026 19:27:39 +0200
Subject: [PATCH] Remove dependency on `memoffset`

`memoffset::offset_of!` was stabilised as `core::mem::offset_of!` in
rust 1.77
---
 fyrox-core/Cargo.toml      | 1 -
 fyrox-core/src/lib.rs      | 3 ---
 fyrox-core/src/pool/mod.rs | 2 +-
 3 files changed, 1 insertion(+), 5 deletions(-)

diff --git a/fyrox-core/Cargo.toml b/fyrox-core/Cargo.toml
index 97809b93e..093b54511 100644
--- a/fyrox-core/Cargo.toml
+++ b/fyrox-core/Cargo.toml
@@ -20,7 +20,6 @@ fyrox-math = { path = "../fyrox-math", version = "2.0.0-rc.1" }
 base64 = "0.22.1"
 byteorder = "1.4.3"
 rand = "0.8"
-memoffset = "0.9.0"
 nalgebra = { version = "0.35", features = ["bytemuck", "convert-glam030"] }
 arrayvec = "0.7.2"
 futures = { version = "0.3.17", features = ["thread-pool"] }
diff --git a/fyrox-core/src/lib.rs b/fyrox-core/src/lib.rs
index 7d63d33fc..d864bcc72 100644
--- a/fyrox-core/src/lib.rs
+++ b/fyrox-core/src/lib.rs
@@ -27,9 +27,6 @@
 #![allow(clippy::doc_lazy_continuation)]
 #![allow(mismatched_lifetime_syntaxes)]
 
-#[macro_use]
-extern crate memoffset;
-
 pub use arrayvec;
 pub use byteorder;
 pub use nalgebra as algebra;
diff --git a/fyrox-core/src/pool/mod.rs b/fyrox-core/src/pool/mod.rs
index a8467168e..baebe43dc 100644
--- a/fyrox-core/src/pool/mod.rs
+++ b/fyrox-core/src/pool/mod.rs
@@ -1367,7 +1367,7 @@ where
         let val = ptr as *const T as usize;
         if val >= begin && val < end {
             let record_size = std::mem::size_of::<PoolRecord<T>>();
-            let record_location = (val - offset_of!(PoolRecord<T>, payload)) - begin;
+            let record_location = (val - core::mem::offset_of!(PoolRecord<T>, payload)) - begin;
             if record_location.is_multiple_of(record_size) {
                 let index = record_location / record_size;
                 let index = u32::try_from(index).expect("Index overflowed u32");