From 5b3afa6080f36f48e2b04bc8accf40a25cfac52e Mon Sep 17 00:00:00 2001
From: Linden <65407488+thelindat@users.noreply.github.com>
Date: Thu, 19 Dec 2024 21:29:18 +1100
Subject: [PATCH] feat(scripting/v8): support unpacking Lua vectors

---
 data/shared/citizen/scripting/v8/main.js | 27 ++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/data/shared/citizen/scripting/v8/main.js b/data/shared/citizen/scripting/v8/main.js
index cfba3db175..9c90052b43 100644
--- a/data/shared/citizen/scripting/v8/main.js
+++ b/data/shared/citizen/scripting/v8/main.js
@@ -3,6 +3,9 @@
 
 const EXT_FUNCREF = 10;
 const EXT_LOCALFUNCREF = 11;
+const EXT_VECTOR2 = 20;
+const EXT_VECTOR3 = 21;
+const EXT_VECTOR4 = 22;
 
 (function (global) {
 	let boundaryIdx = 1;
@@ -49,6 +52,30 @@ const EXT_LOCALFUNCREF = 11;
 
 	const pack = data => msgpack.encode(data, { codec });
 	const unpack = data => msgpack.decode(data, { codec });
+	
+	const vectorUnpacker = (data) => {
+	  const buffer = Buffer.from(data);
+	
+	  return Array.from(
+	    new Float32Array(buffer.buffer, buffer.byteOffset, buffer.length / 4),
+	    (value) => Number(value.toPrecision(7))
+	  );
+	};
+	
+	addExtension({
+	  type: EXT_VECTOR2,
+	  unpack: vectorUnpacker,
+	});
+	
+	addExtension({
+	  type: EXT_VECTOR3,
+	  unpack: vectorUnpacker,
+	});
+	
+	addExtension({
+	  type: EXT_VECTOR4,
+	  unpack: vectorUnpacker,
+	});
 
 	// store for use by natives.js
 	global.msgpack_pack = pack;