From 8fa0290e25ac6b6cb0ac7bd3d1d32f5eadd89e05 Mon Sep 17 00:00:00 2001
From: SNMetamorph <25657591+SNMetamorph@users.noreply.github.com>
Date: Sun, 11 Dec 2022 20:49:47 +0400
Subject: [PATCH] Documentation: extensions: added page about expanded common
 structures

---
 Documentation/extensions/expanded-common-structures.md | 8 ++++++++
 1 file changed, 8 insertions(+)
 create mode 100644 Documentation/extensions/expanded-common-structures.md

diff --git a/Documentation/extensions/expanded-common-structures.md b/Documentation/extensions/expanded-common-structures.md
new file mode 100644
index 00000000..4b72aedc
--- /dev/null
+++ b/Documentation/extensions/expanded-common-structures.md
@@ -0,0 +1,8 @@
+# Expanded structures that used by engine and mods
+To make porting and developing mods on 64-bit platforms less painful, we decided to expand size of several structures.
+This information important in case you are using codebase like XashXT, Paranoia 2: Savior and want to compile your mod for platform with 64-bit pointer size: you should replace old definitions with new ones, otherwise your mod will not work with Xash3D FWGS (typically, it's just crashing when starting map).
+| Structure name | Locates in file | Original size on 64-bit | Current size on 64-bit |
+|----------------|-----------------|-------------------------|------------------------|
+|`mfaceinfo_t` | `common/com_model.h` | 176 bytes |  304 bytes |
+|`decal_s` | `common/com_model.h` | 72 bytes |  88 bytes |
+|`mextrasurf_t` | `common/com_model.h` | 376 bytes |  504 bytes |