From bab1c17ca9631687390903c7ade26151f9aa8c12 Mon Sep 17 00:00:00 2001
From: Ehbw <ehbwwww@gmail.com>
Date: Sun, 24 Dec 2023 16:20:31 +0000
Subject: [PATCH] feat(onesync): CTrainGameStateDataNode research

---
 .../include/state/ServerGameState.h           | 17 +++++++++--
 .../include/state/SyncTrees_Five.h            | 29 ++++++++++++-------
 2 files changed, 33 insertions(+), 13 deletions(-)

diff --git a/code/components/citizen-server-impl/include/state/ServerGameState.h b/code/components/citizen-server-impl/include/state/ServerGameState.h
index 1fc7b10f69..d68ec1ea21 100644
--- a/code/components/citizen-server-impl/include/state/ServerGameState.h
+++ b/code/components/citizen-server-impl/include/state/ServerGameState.h
@@ -556,9 +556,9 @@ struct CTrainGameStateDataNodeData
 	bool renderDerailed;
 
 	// 2372 {
-	bool unk198;
-	bool unk224;
-	bool unk199;
+	bool unk198; //unk198
+	bool highPrecisionBlending; //unk224
+	bool hasNoThreadId; //unk199
 	// }
 
 	bool forceDoorsOpen;
@@ -648,6 +648,17 @@ enum ePopType
 	POPTYPE_TOOL
 };
 
+//TODO: Probably should be moved out of fx::sync namespace
+struct scrVector
+{
+	float x;
+	int pad;
+	float y;
+	int pad2;
+	float z;
+	int pad3;
+};
+
 struct SyncTreeBase
 {
 public:
diff --git a/code/components/citizen-server-impl/include/state/SyncTrees_Five.h b/code/components/citizen-server-impl/include/state/SyncTrees_Five.h
index ae79c84654..94b56d6738 100644
--- a/code/components/citizen-server-impl/include/state/SyncTrees_Five.h
+++ b/code/components/citizen-server-impl/include/state/SyncTrees_Five.h
@@ -2623,21 +2623,30 @@ struct CTrainGameStateDataNode : GenericSerializeDataNode<CTrainGameStateDataNod
 		// 0 = Moving, 1 = Slowing down, 2 = Doors opening, 3 = Stopped, 4 = Doors closing, 5 = Before depart
 		s.Serialize(3, data.trainState);
 
-		s.Serialize(data.isEngine);
+		s.Serialize(data.isEngine);
+		
+		//2372 inserted a bool between isEngine and isCaboose
+		if (Is2372())
+		{
+			s.Serialize(data.unk198);
+		}
+
 		s.Serialize(data.isCaboose);
 		s.Serialize(data.unk12);
 		s.Serialize(data.direction);
 		s.Serialize(data.unk14);
 		s.Serialize(data.renderDerailed);
 
-		if (Is2372()) // Sequence of bits need to be verified for 2732
-		{
-			s.Serialize(data.unk198);
-			s.Serialize(data.unk224);
-			s.Serialize(data.unk199);
-		}
-
 		s.Serialize(data.forceDoorsOpen);
+
+		if (Is2372())
+		{
+			//Always true on randomly spawned trains
+			s.Serialize(data.hasNoThreadId);
+
+			//Modified by 0xEC0C1D4922AF9754
+			s.Serialize(data.highPrecisionBlending);
+		}
 
 		return true;
 	}
@@ -3278,7 +3287,7 @@ struct SyncTree : public SyncTreeBaseImpl<TNode, false>
 				}
 			}
 		}
-	}
+	}
 
 	virtual CDoorMovementDataNodeData* GetDoorMovement() override
 	{
@@ -3525,7 +3534,7 @@ struct SyncTree : public SyncTreeBaseImpl<TNode, false>
 		auto [hasNode, node] = this->template GetData<CPedMovementGroupDataNode>();
 
 		return hasNode ? &node->data : nullptr;
-	}
+	}
 
 	virtual void CalculatePosition() override
 	{