From 4fd08425a59565d6426995f23151aa3eb50ce9f7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Petri=20H=C3=A4kkinen?= <petrih@rmd.remedy.fi>
Date: Thu, 18 Nov 2021 09:48:25 +0200
Subject: [PATCH] Improve hashvec for float4s.

---
 VM/src/ltable.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/VM/src/ltable.cpp b/VM/src/ltable.cpp
index 6a01c149..87396036 100644
--- a/VM/src/ltable.cpp
+++ b/VM/src/ltable.cpp
@@ -114,7 +114,7 @@ static LuaNode* hashvec(const Table* t, const float* v)
     unsigned int h = (i[0] * 73856093) ^ (i[1] * 19349663) ^ (i[2] * 83492791);
 
 #ifdef LUA_FLOAT4_VECTORS
-    h ^= i[3];  // TODO: proper hashing function for 4D vectors
+    h ^= i[3] * 39916801;
 #endif
 
     return hashpow2(t, h);