diff --git a/TombEngine/Game/effects/weather.cpp b/TombEngine/Game/effects/weather.cpp
index ab1f89c33..ad8fb5867 100644
--- a/TombEngine/Game/effects/weather.cpp
+++ b/TombEngine/Game/effects/weather.cpp
@@ -425,7 +425,7 @@ namespace TEN::Effects::Environment
 			if (!TestEnvironment(RoomEnvFlags::ENV_FLAG_WATER, roomNumber))
 				continue;
 
-			if (!IsPointInRoom(PHD_3DPOS(xPos, yPos, zPos), roomNumber))
+			if (!IsPointInRoom(Vector3Int(xPos, yPos, zPos), roomNumber))
 				continue;
 
 			auto part = WeatherParticle();
diff --git a/TombEngine/Game/room.cpp b/TombEngine/Game/room.cpp
index 13728fb96..dd0010216 100644
--- a/TombEngine/Game/room.cpp
+++ b/TombEngine/Game/room.cpp
@@ -161,11 +161,11 @@ FloorInfo* GetSector(ROOM_INFO* room, int x, int z)
 	return &room->floor[index];
 }
 
-bool IsPointInRoom(PHD_3DPOS const& pos, int roomNumber)
+bool IsPointInRoom(Vector3Int pos, int roomNumber)
 {
-	int x = pos.Position.x;
-	int y = pos.Position.y;
-	int z = pos.Position.z;
+	int x = pos.x;
+	int y = pos.y;
+	int z = pos.z;
 	auto* room = &g_Level.Rooms[roomNumber];
 	int xSector = (x - room->x) / SECTOR(1);
 	int zSector = (z - room->z) / SECTOR(1);
@@ -180,17 +180,27 @@ bool IsPointInRoom(PHD_3DPOS const& pos, int roomNumber)
 	return false;
 }
 
-PHD_3DPOS GetRoomCenter(int roomNumber)
+int FindRoomNumber(Vector3Int position)
+{
+	for (int i = 0; i < g_Level.Rooms.size(); i++)
+		if (IsPointInRoom(position, i))
+			return i;
+
+	return 0;
+}
+
+Vector3Int GetRoomCenter(int roomNumber)
 {
 	auto* room = &g_Level.Rooms[roomNumber];
 	auto halfLength = SECTOR(room->xSize) / 2;
 	auto halfDepth = SECTOR(room->zSize) / 2;
 	auto halfHeight = (room->maxceiling - room->minfloor) / 2;
 
-	PHD_3DPOS center;
-	center.Position.x = room->x + halfLength;
-	center.Position.y = room->minfloor + halfHeight;
-	center.Position.z = room->z + halfDepth;
+	Vector3Int center;
+	center.x = room->x + halfLength;
+	center.y = room->minfloor + halfHeight;
+	center.z = room->z + halfDepth;
+
 	return center;
 }
 
diff --git a/TombEngine/Game/room.h b/TombEngine/Game/room.h
index c5b4dfc16..4029c549f 100644
--- a/TombEngine/Game/room.h
+++ b/TombEngine/Game/room.h
@@ -133,8 +133,9 @@ void DoFlipMap(short group);
 void AddRoomFlipItems(ROOM_INFO* room);
 void RemoveRoomFlipItems(ROOM_INFO* room);
 bool IsObjectInRoom(short roomNumber, short objectNumber);
-bool IsPointInRoom(PHD_3DPOS const& pos, int roomNumber);
-PHD_3DPOS GetRoomCenter(int roomNumber);
+bool IsPointInRoom(Vector3Int pos, int roomNumber);
+int FindRoomNumber(Vector3Int position);
+Vector3Int GetRoomCenter(int roomNumber);
 int IsRoomOutside(int x, int y, int z);
 std::set<int> GetRoomList(int roomNumber);
 
diff --git a/TombEngine/Renderer/Renderer11.h b/TombEngine/Renderer/Renderer11.h
index 89c4930a1..f25bf5f74 100644
--- a/TombEngine/Renderer/Renderer11.h
+++ b/TombEngine/Renderer/Renderer11.h
@@ -539,7 +539,6 @@ namespace TEN::Renderer
 		void AddSprite3D(RendererSprite* sprite, Vector3 vtx1, Vector3 vtx2, Vector3 vtx3, Vector3 vtx4, Vector4 color,
 		                 float rotation, float scale, Vector2 size, BLEND_MODES blendMode, RenderView& view);
 
-		short GetRoomNumberForSpriteTest(Vector3 position);
 		RendererMesh* GetMesh(int meshIndex);
 		Texture2D CreateDefaultNormalTexture();
 
diff --git a/TombEngine/Renderer/Renderer11DrawEffect.cpp b/TombEngine/Renderer/Renderer11DrawEffect.cpp
index 741a8ad86..fe19a97d8 100644
--- a/TombEngine/Renderer/Renderer11DrawEffect.cpp
+++ b/TombEngine/Renderer/Renderer11DrawEffect.cpp
@@ -873,7 +873,7 @@ namespace TEN::Renderer
 				face.info.world = spriteMatrix;
 				face.info.blendMode = spr.BlendMode;
 
-				RendererRoom& room = m_rooms[GetRoomNumberForSpriteTest(spr.pos)];
+				RendererRoom& room = m_rooms[FindRoomNumber(Vector3Int(spr.pos))];
 				room.TransparentFacesToDraw.push_back(face);
 			}
 			else
diff --git a/TombEngine/Renderer/RendererSprites.cpp b/TombEngine/Renderer/RendererSprites.cpp
index 513743ae0..ce5c87931 100644
--- a/TombEngine/Renderer/RendererSprites.cpp
+++ b/TombEngine/Renderer/RendererSprites.cpp
@@ -4,22 +4,6 @@
 
 namespace TEN::Renderer 
 {
-	short Renderer11::GetRoomNumberForSpriteTest(Vector3 position)
-	{
-		for (int i = 0; i < g_Level.Rooms.size(); i++)
-		{
-			ROOM_INFO* room = &g_Level.Rooms[i];
-			if (position.x >= room->x && position.x <= room->x + (room->xSize - 1) * WALL_SIZE &&
-				position.y >= room->maxceiling && position.y <= room->minfloor &&
-				position.z >= room->z && position.z <= room->z + (room->zSize - 1) * WALL_SIZE)
-			{
-				return i;
-			}
-		}
-
-		return 0;
-	}
-
 	void Renderer11::AddSpriteBillboard(RendererSprite* sprite, Vector3 pos, Vector4 color, float rotation, float scale, Vector2 size, BLEND_MODES blendMode, RenderView& view)
 	{
 		if (scale <= 0.0f)
diff --git a/TombEngine/Scripting/Internal/TEN/Misc/Miscellanous.cpp b/TombEngine/Scripting/Internal/TEN/Misc/Miscellanous.cpp
index bc487540c..2adedc045 100644
--- a/TombEngine/Scripting/Internal/TEN/Misc/Miscellanous.cpp
+++ b/TombEngine/Scripting/Internal/TEN/Misc/Miscellanous.cpp
@@ -20,7 +20,8 @@ Functions that don't fit in the other modules.
 using namespace TEN::Effects::Lightning;
 using namespace TEN::Effects::Spark;
 
-namespace Misc {
+namespace Misc 
+{
 	[[nodiscard]] static bool HasLineOfSight(short roomNumber1, Vec3 pos1, Vec3 pos2)
 	{
 		GameVector vec1, vec2;
@@ -30,11 +31,6 @@ namespace Misc {
 		return LOS(&vec1, &vec2);
 	}
 
-	static int FindRoomNumber(Vec3 pos)
-	{
-		return 0;
-	}
-
 	static void AddLightningArc(Vec3 src, Vec3 dest, ScriptColor color, int lifetime, int amplitude, int beamWidth, int segments, int flags)
 	{
 		Vector3Int p1;
@@ -70,6 +66,7 @@ namespace Misc {
 		s->x = pos.x;
 		s->y = pos.y;
 		s->z = pos.z;
+		s->roomNumber = FindRoomNumber(Vector3Int(pos.x, pos.y, pos.z));
 
 		s->life = s->sLife = lifetime;
 
@@ -117,7 +114,7 @@ namespace Misc {
 
 	static void AddFireFlame(Vec3 pos, float size)
 	{
-		AddFire(pos.x, pos.y, pos.z, FindRoomNumber(pos), size, 0);
+		AddFire(pos.x, pos.y, pos.z, FindRoomNumber(Vector3Int(pos.x, pos.y, pos.z)), size, 0);
 	}
 
 	static void Earthquake(int strength)
diff --git a/TombEngine/Scripting/Internal/TEN/Objects/Moveable/MoveableObject.cpp b/TombEngine/Scripting/Internal/TEN/Objects/Moveable/MoveableObject.cpp
index a545c2fcb..f9a26bb75 100644
--- a/TombEngine/Scripting/Internal/TEN/Objects/Moveable/MoveableObject.cpp
+++ b/TombEngine/Scripting/Internal/TEN/Objects/Moveable/MoveableObject.cpp
@@ -367,12 +367,12 @@ void Moveable::Register(sol::table & parent)
 
 void Moveable::Init()
 {
-	bool cond = IsPointInRoom(m_item->Pose, m_item->RoomNumber);
+	bool cond = IsPointInRoom(m_item->Pose.Position, m_item->RoomNumber);
 	std::string err{ "Position of item \"{}\" does not match its room ID." };
 	if (!ScriptAssertF(cond, err, m_item->LuaName))
 	{
 		ScriptWarn("Resetting to the center of the room.");
-		PHD_3DPOS center = GetRoomCenter(m_item->RoomNumber);
+		auto center = GetRoomCenter(m_item->RoomNumber);
 		// reset position but not rotation
 		m_item->Pose.Position.x = center.Position.x;
 		m_item->Pose.Position.y = center.Position.y;
diff --git a/TombEngine/Specific/phd_global.h b/TombEngine/Specific/phd_global.h
index b1da44381..e89d741bf 100644
--- a/TombEngine/Specific/phd_global.h
+++ b/TombEngine/Specific/phd_global.h
@@ -111,6 +111,13 @@ struct Vector3Int
 		this->z = z;
 	}
 
+	Vector3Int(Vector3 v)
+	{
+		this->x = int(v.x);
+		this->y = int(v.y);
+		this->z = int(v.z);
+	}
+
 	Vector3 ToVector3()
 	{
 		return Vector3(x, y, z);