Property drawer for circular buffer

Assets/Scripts/Rope/Rope.cs

@@ -137,6 +137,7 @@ public class Rope
     } */
 }
 
+[System.Serializable]
 public struct NetworkRope : INetworkSerializable
 {
     // For rope points

Assets/Scripts/Rope/RopeSimulator.cs

@@ -73,6 +73,8 @@ public class RopeSimulator : NetworkBehaviour
     private System.Random rng = new System.Random(k_rngSeed);
     private CountdownTimer ropeSendTimer;
     private int currentTick => NetworkManager.Singleton.NetworkTickSystem.LocalTime.Tick;
+    [SerializeField] private CircularBuffer<GameState> stateBuffer;
+    private const int k_bufferSize = 512;
 
     private int[] order;
 
@@ -98,6 +100,8 @@ public class RopeSimulator : NetworkBehaviour
             Destroy(instance);
         }
 
+        stateBuffer = new(k_bufferSize);
+
         ropeSendTimer = new(k_sendRopeDataDelay);
 
         // ropeSendTimer.OnTimerStop += SendRopeData;
@@ -108,13 +112,13 @@ public class RopeSimulator : NetworkBehaviour
     private void OnEnable()
     {
         GameManager.OnPlayersReady += PlayersReady;
-        NetworkManager.Singleton.NetworkTickSystem.Tick += SendGameState;
+        NetworkManager.Singleton.NetworkTickSystem.Tick += NetworkTick;
     }
 
     private void OnDisable()
     {
         GameManager.OnPlayersReady -= PlayersReady;
-        NetworkManager.Singleton.NetworkTickSystem.Tick -= SendGameState;
+        NetworkManager.Singleton.NetworkTickSystem.Tick -= NetworkTick;
     }
 
     public void PlayersReady(GameObject[] players)
@@ -305,16 +309,23 @@ public class RopeSimulator : NetworkBehaviour
         Debug.Log($"Received server state. Server tick: {serverState.tick}, client: {currentTick}");
     }
 
-    private void SendGameState()
+    private void NetworkTick()
     {
-        if (!IsServer) return;
+        stateBuffer.Add(ProcessGame(), currentTick);
 
-        GameState serverState = new() {
+        // Send to clients if is server
+        if (IsServer)
+            ServerToClientGameStateRpc(stateBuffer.Get(currentTick));
+    }
+
+    private GameState ProcessGame()
+    {
+        GameState localState = new() {
             tick = currentTick,
             nrope = Rope.ToNetworkRope(this.rope)
         };
 
-        ServerToClientGameStateRpc(serverState);
+        return localState;
     }
 
     private void SendRopeData()

Assets/Scripts/Utilities/CircularBuffer.cs

@@ -1,6 +1,7 @@
+[System.Serializable]
 public class CircularBuffer<T> {
-    T[] buffer;
-    int bufferSize;
+    public T[] buffer;
+    public int bufferSize;
 
     public CircularBuffer(int bufferSize) {
         this.bufferSize = bufferSize;

Assets/Scripts/Utilities/CircularBufferDrawer.cs

@@ -0,0 +1,50 @@
+#if UNITY_EDITOR
+using UnityEditor;
+using UnityEngine;
+
+[CustomPropertyDrawer(typeof(CircularBuffer<>))]
+public class CircularBufferDrawer : PropertyDrawer
+{
+    public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
+    {
+        EditorGUI.BeginProperty(position, label, property);
+
+        EditorGUI.PrefixLabel(position, GUIUtility.GetControlID(FocusType.Passive), label);
+
+        EditorGUI.indentLevel++;
+
+        SerializedProperty bufferSizeProp = property.FindPropertyRelative("bufferSize");
+        int bufferSize = bufferSizeProp.intValue;
+
+        EditorGUI.PropertyField(
+            new Rect(position.x, position.y + EditorGUIUtility.singleLineHeight, position.width, EditorGUIUtility.singleLineHeight),
+            bufferSizeProp);
+
+        SerializedProperty bufferProp = property.FindPropertyRelative("buffer");
+
+        EditorGUI.LabelField(
+            new Rect(position.x, position.y + EditorGUIUtility.singleLineHeight * 2, position.width, EditorGUIUtility.singleLineHeight),
+            "Buffer Elements");
+
+        float lineHeight = EditorGUIUtility.singleLineHeight;
+        float bufferHeight = lineHeight * bufferSize;
+
+        Rect bufferRect = new Rect(position.x, position.y + EditorGUIUtility.singleLineHeight * 3, position.width, bufferHeight);
+
+        EditorGUI.PropertyField(bufferRect, bufferProp, GUIContent.none, true);
+
+        EditorGUI.indentLevel--;
+
+        EditorGUI.EndProperty();
+    }
+
+    public override float GetPropertyHeight(SerializedProperty property, GUIContent label)
+    {
+        SerializedProperty bufferSizeProp = property.FindPropertyRelative("bufferSize");
+        int bufferSize = bufferSizeProp.intValue;
+
+        return EditorGUIUtility.singleLineHeight * (bufferSize + 3); // 1 for buffer size, 1 for label, and bufferSize for buffer elements
+    }
+}
+
+#endif

Assets/Scripts/Utilities/CircularBufferDrawer.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 53ed82cd9cfbdb1868c0d12e415dd33f