Rotations Matrix

Minecraft Client/Assets/Scripts/Game/Client.cs

@@ -149,6 +149,25 @@ public class Client
         Send(send);
     }
 
+    public void SendRotationUpdate(Quaternion rotation)
+    {
+        string x = rotation.x.ToString("n4");
+        string y = rotation.y.ToString("n4");
+        string z = rotation.z.ToString("n4");
+        string w = rotation.w.ToString("n4");
+
+        string sendRotation = x + " " + y + " " + z + " " + w;
+        byte[] sendRotationASCII = Encoding.ASCII.GetBytes(sendRotation);
+        byte[] send = new byte[sendRotationASCII.Length + 1];
+        send[0] = 8;
+        for (int i = 1; i < send.Length; i++)
+        {
+            send[i] = sendRotationASCII[i - 1];
+        }
+        
+        Send(send);
+    }
+    
     private void Receive()
     {
         while(true)
@@ -192,7 +211,27 @@ public class Client
             {
                 world.RemovePlayer(data[1]);
             }
+
+            if (data[0] == 8)
+            {
+                byte[] rotationASCII = new byte[data.Length - 2];
+                for (int i = 0; i < data.Length - 2; i++)
+                {
+                    rotationASCII[i] = data[i + 2];
+                }
+
+                byte id = data[1];
+                
+                string[] rotationString = Encoding.ASCII.GetString(rotationASCII).Split(' ');
+                float x = float.Parse(rotationString[0]);
+                float y = float.Parse(rotationString[1]);
+                float z = float.Parse(rotationString[2]);
+                float w = float.Parse(rotationString[3]);
+                
+                world.UpdatePlayerRotation(new Quaternion(x, y, z, w), id);
+            }
         }
+        
     }
 
     public void EditBlock(Vector3 positionInWorld, byte blockID)

Minecraft Client/Assets/Scripts/Game/Player.cs

@@ -25,6 +25,7 @@ public class Player : MonoBehaviour
     private float gravity = -20f;
     private Camera camera = null;
     private Vector3 lastPosition = new Vector3();
+    private Quaternion lastRotation = new Quaternion();
     
     //network
     private Client client = null;
@@ -56,13 +57,21 @@ public class Player : MonoBehaviour
         transform.Translate(velocity, Space.World);
         
         Vector3 position = transform.position;
+        Quaternion rotation = transform.rotation;
 
         if (lastPosition.x != position.x || lastPosition.y != position.y || lastPosition.z != position.z)
         {
             client.SendPositionUpdate(transform.position);
         }
 
+        if (rotation.w != lastRotation.w || rotation.x != lastRotation.x || rotation.y != lastRotation.y ||
+            rotation.z != lastRotation.z)
+        {
+            client.SendRotationUpdate(transform.rotation);
+        }
+        
         lastPosition = new Vector3(transform.position.x, transform.position.y, transform.position.z);
+        lastRotation = transform.rotation;
     }
 
     private void Update()
@@ -233,9 +242,9 @@ public class Player : MonoBehaviour
         }
     }
 
-    public class PlayerUpdateData
+    public class PlayerPositionUpdateData
     {
-        public PlayerUpdateData(byte id, Vector3 position, bool destroy)
+        public PlayerPositionUpdateData(byte id, Vector3 position, bool destroy)
         {
             this.id = id;
             this.position = position;
@@ -246,5 +255,17 @@ public class Player : MonoBehaviour
         public Vector3 position;
         public bool destroy;
     }
+
+    public class PlayerRotationsUpdateData
+    {
+        public byte id;
+        public Quaternion rotation;
+        
+        public PlayerRotationsUpdateData(byte id, Quaternion rotation)
+        {
+            this.id = id;
+            this.rotation = rotation;
+        }
+    }
 }
 

Minecraft Client/Assets/Scripts/Game/World.cs

@@ -12,7 +12,10 @@ public class World : MonoBehaviour
     private string name;
     private Dictionary<byte, GameObject> otherPlayers = new Dictionary<byte, GameObject>();
     private Queue<byte> playersToCreate = new Queue<byte>();
-    private Queue<Player.PlayerUpdateData> playersToUpdate = new Queue<Player.PlayerUpdateData>();
+    private Queue<Player.PlayerPositionUpdateData> playersPositionsToUpdate = new Queue<Player.PlayerPositionUpdateData>();
+    
+    private Queue<Player.PlayerRotationsUpdateData> playersRotationsToUpdate =
+        new Queue<Player.PlayerRotationsUpdateData>();
 
     //chunks
     private Chunk[,] chunks;
@@ -36,7 +39,7 @@ public class World : MonoBehaviour
 
     public void RemovePlayer(byte id)
     {
-        playersToUpdate.Enqueue(new Player.PlayerUpdateData(id, Vector3.zero, true));
+        playersPositionsToUpdate.Enqueue(new Player.PlayerPositionUpdateData(id, Vector3.zero, true));
     }
 
     private void Update()
@@ -58,9 +61,9 @@ public class World : MonoBehaviour
             otherPlayers.Add(id, player);
         }
 
-        if (playersToUpdate.Count > 0)
+        if (playersPositionsToUpdate.Count > 0)
         {
-            Player.PlayerUpdateData data = playersToUpdate.Dequeue();
+            Player.PlayerPositionUpdateData data = playersPositionsToUpdate.Dequeue();
             otherPlayers.TryGetValue(data.id, out GameObject g);
             if (g != null)
             {
@@ -72,11 +75,26 @@ public class World : MonoBehaviour
                 }
             }
         }
+
+        if (playersRotationsToUpdate.Count > 0)
+        {
+            Player.PlayerRotationsUpdateData data = playersRotationsToUpdate.Dequeue();
+            otherPlayers.TryGetValue(data.id, out GameObject g);
+            if (g != null)
+            {
+                g.transform.rotation = data.rotation;
+            }
+        }
     }
 
     public void UpdatePlayerPosition(Vector3 position, byte id)
     {
-        playersToUpdate.Enqueue(new Player.PlayerUpdateData(id, position, false));
+        playersPositionsToUpdate.Enqueue(new Player.PlayerPositionUpdateData(id, position, false));
+    }
+
+    public void UpdatePlayerRotation(Quaternion rotation, byte id)
+    {
+        playersRotationsToUpdate.Enqueue(new Player.PlayerRotationsUpdateData(id, rotation));
     }
 
     public void AddPlayer(byte id)

Minecraft Server/Assets/Game/Server.cs

@@ -45,6 +45,7 @@ public class Server
     //[0] = 5: create new player in client
     //[0] = 6: player ready
     //[0] = 7: player position update
+    //[0] = 8: player rotation update
 
     private void Receive()
     {
@@ -179,6 +180,41 @@ public class Server
                         }
                     }
                 }
+
+                if (data[0] == 8)
+                {
+                    byte[] rotationASCII = new byte[data.Length - 1];
+                    for (int i = 0; i < data.Length - 1; i++)
+                    {
+                        rotationASCII[i] = data[i + 1];
+                    }
+                    
+                    string[] rotationString = Encoding.ASCII.GetString(rotationASCII).Split(' ');
+                    string x = rotationString[0];
+                    string y = rotationString[1];
+                    string z = rotationString[2];
+                    string w = rotationString[3];
+
+                    byte id = (byte)GetPlayerID(endPoint);
+                    string sendRotation = x + " " + y + " " + z + " " + w;
+                    byte[] sendRotationASCII = Encoding.ASCII.GetBytes(sendRotation);
+                    byte[] send = new byte[sendRotationASCII.Length + 2];
+                    send[0] = 8;
+                    send[1] = id;
+                    
+                    for (int i = 2; i < send.Length; i++)
+                    {
+                        send[i] = sendRotationASCII[i - 2];
+                    }
+
+                    foreach (IPEndPoint e in players)
+                    {
+                        if (id != GetPlayerID(e))
+                        {
+                            Send(send, e);
+                        }
+                    }
+                }
             }
             catch (Exception e)
             {