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.Client/MultiPlayerLevel.h | 102 ++++++++++++++++++++++++++++++++++++
 1 file changed, 102 insertions(+)
 create mode 100644 Minecraft.Client/MultiPlayerLevel.h

(limited to 'Minecraft.Client/MultiPlayerLevel.h')

diff --git a/Minecraft.Client/MultiPlayerLevel.h b/Minecraft.Client/MultiPlayerLevel.h
new file mode 100644
index 00000000..c07b5583
--- /dev/null
+++ b/Minecraft.Client/MultiPlayerLevel.h
@@ -0,0 +1,102 @@
+#pragma once
+using namespace std;
+#include "..\Minecraft.World\HashExtension.h"
+#include "..\Minecraft.World\net.minecraft.world.level.h"
+#include "..\Minecraft.World\net.minecraft.world.entity.h"
+#include "..\Minecraft.World\JavaIntHash.h"
+
+class ClientConnection;
+class MultiPlayerChunkCache;
+
+using namespace std;
+
+class MultiPlayerLevel : public Level
+{
+private:
+	static const int TICKS_BEFORE_RESET = 20 * 4;
+
+    class ResetInfo
+	{
+	public:
+        int x, y, z, ticks, tile, data;
+        ResetInfo(int x, int y, int z, int tile, int data);
+    };
+
+	vector<ResetInfo> updatesToReset;	// 4J - was linked list but vector seems more appropriate
+	bool m_bEnableResetChanges; // 4J Added
+public:
+	void unshareChunkAt(int x, int z);	// 4J - added
+	void shareChunkAt(int x, int z);	// 4J - added
+
+	void enableResetChanges(bool enable) { m_bEnableResetChanges = enable; } // 4J Added
+private:
+	int unshareCheckX;		// 4J - added
+	int unshareCheckZ;		// 4J - added
+	int compressCheckX;		// 4J - added
+	int compressCheckZ;		// 4J - added
+    vector<ClientConnection *> connections; // 4J Stu - Made this a vector as we can have more than one local connection
+    MultiPlayerChunkCache *chunkCache;
+	Minecraft *minecraft;
+
+public:
+	MultiPlayerLevel(ClientConnection *connection, LevelSettings *levelSettings, int dimension, int difficulty);
+	virtual ~MultiPlayerLevel();
+    virtual void tick() ;
+
+	void clearResetRegion(int x0, int y0, int z0, int x1, int y1, int z1);
+protected:
+	 ChunkSource *createChunkSource();	// 4J - was virtual, but was called from parent ctor
+public:
+	virtual void validateSpawn();
+protected:
+	virtual void tickTiles();
+public:
+    void setChunkVisible(int x, int z, bool visible);
+
+private:
+	unordered_map<int, shared_ptr<Entity>, IntKeyHash2, IntKeyEq> entitiesById;	// 4J - was IntHashMap
+    unordered_set<shared_ptr<Entity> > forced;
+    unordered_set<shared_ptr<Entity> > reEntries;
+
+public:
+	virtual bool addEntity(shared_ptr<Entity> e);
+    virtual void removeEntity(shared_ptr<Entity> e);
+protected:
+	virtual void entityAdded(shared_ptr<Entity> e);
+    virtual void entityRemoved(shared_ptr<Entity> e);
+public:
+	void putEntity(int id, shared_ptr<Entity> e);
+    shared_ptr<Entity> getEntity(int id);
+    shared_ptr<Entity> removeEntity(int id);
+	virtual void removeEntities(vector<shared_ptr<Entity> > *list); // 4J Added override
+    virtual bool setDataNoUpdate(int x, int y, int z, int data);
+    virtual bool setTileAndDataNoUpdate(int x, int y, int z, int tile, int data);
+    virtual bool setTileNoUpdate(int x, int y, int z, int tile);
+    bool doSetTileAndData(int x, int y, int z, int tile, int data);
+    virtual void disconnect(bool sendDisconnect = true);
+	void animateTick(int xt, int yt, int zt);
+protected:
+	virtual void tickWeather();
+	
+	static const int ANIMATE_TICK_MAX_PARTICLES = 500;
+
+public:
+	void animateTickDoWork();			// 4J added
+	unordered_set<int> chunksToAnimate;	// 4J added
+
+public:
+	void removeAllPendingEntityRemovals();
+
+	virtual void playSound(shared_ptr<Entity> entity, int iSound, float volume, float pitch);
+
+	virtual void playLocalSound(double x, double y, double z, int iSound, float volume, float pitch, float fClipSoundDist=16.0f);
+
+	// 4J Stu - Added so we can have multiple local connections
+	void addClientConnection(ClientConnection *c) { connections.push_back( c ); }
+	void removeClientConnection(ClientConnection *c, bool sendDisconnect);
+
+	void tickAllConnections();
+
+	void dataReceivedForChunk(int x, int z);	// 4J added
+	void removeUnusedTileEntitiesInRegion(int x0, int y0, int z0, int x1, int y1, int z1);	// 4J added
+};
-- 
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