From b691c43c44ff180d10e7d4a9afc83b98551ff586 Mon Sep 17 00:00:00 2001
From: daoge_cmd <3523206925@qq.com>
Date: Sun, 1 Mar 2026 12:16:08 +0800
Subject: Initial commit

---
 Minecraft.World/MapItemSavedData.h | 89 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 89 insertions(+)
 create mode 100644 Minecraft.World/MapItemSavedData.h

(limited to 'Minecraft.World/MapItemSavedData.h')

diff --git a/Minecraft.World/MapItemSavedData.h b/Minecraft.World/MapItemSavedData.h
new file mode 100644
index 00000000..fcbe5e30
--- /dev/null
+++ b/Minecraft.World/MapItemSavedData.h
@@ -0,0 +1,89 @@
+#pragma once
+
+#include "Player.h"
+#include "SavedData.h"
+
+class MapItemSavedData : public SavedData
+{
+public:
+	static const int MAP_SIZE = 64;
+	static const int MAX_SCALE = 4;
+
+#ifdef _LARGE_WORLDS
+	static const int DEC_PACKET_BYTES = 8;
+#else
+	static const int DEC_PACKET_BYTES = 7;
+#endif
+
+	class MapDecoration
+	{
+	public:
+		char img, x, y, rot;
+		int entityId; // 4J Added
+		bool visible;
+
+		MapDecoration(char img, char x, char y, char rot, int entityId, bool visible); // 4J added entityId, visible param
+	};
+
+	class HoldingPlayer
+	{
+	public:
+		const shared_ptr<Player> player;
+		intArray rowsDirtyMin;
+		intArray rowsDirtyMax;
+
+	private:
+		int tick;
+		int sendPosTick;
+		charArray lastSentDecorations;
+
+	protected:
+		const MapItemSavedData *parent;
+
+	public:
+		// 4J Stu - Had to add a reference to the MapItemSavedData object that created us as we try to access it's member variables
+		HoldingPlayer(shared_ptr<Player> player, const MapItemSavedData *parent);
+		~HoldingPlayer();
+		charArray nextUpdatePacket(shared_ptr<ItemInstance> itemInstance);
+	};
+
+public:
+	int x, z;
+	char dimension;
+	byte scale;
+	byteArray colors;
+	int step;
+	vector<shared_ptr<HoldingPlayer> > carriedBy;
+
+private:
+	typedef unordered_map<shared_ptr<Player> , shared_ptr<HoldingPlayer> , PlayerKeyHash, PlayerKeyEq> playerHoldingPlayerMapType;
+	playerHoldingPlayerMapType carriedByPlayers;
+
+public:
+	vector<MapDecoration *> decorations;
+
+private:
+	// 4J Stu added
+	unordered_map<int, MapDecoration *> nonPlayerDecorations;
+	static const int END_PORTAL_DECORATION_KEY;
+
+
+public:
+	MapItemSavedData(const wstring& id);
+	~MapItemSavedData();
+
+	virtual void load(CompoundTag *tag);
+	virtual void save(CompoundTag *tag);
+
+	void tickCarriedBy(shared_ptr<Player> player, shared_ptr<ItemInstance> item);
+
+	charArray getUpdatePacket(shared_ptr<ItemInstance> itemInstance, Level *level, shared_ptr<Player> player);
+
+	using SavedData::setDirty;
+	void setDirty(int x, int y0, int y1);
+	void handleComplexItemData(charArray &data);
+
+	// 4J Stu Added
+	void mergeInMapData(shared_ptr<MapItemSavedData> dataToAdd);
+	void removeItemFrameDecoration(shared_ptr<ItemInstance> item);
+};
-- 
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