unity world renderer

WorldPanelManager.cs

@@ -0,0 +1,103 @@
+// WorldPanelManager.cs — renders the shared world as spatial panels.
+//
+// Subscribes to the XrosClient and turns world-state events into GameObjects:
+//   spawn  -> instantiate a panel at the object's pose
+//   move   -> reposition an existing panel
+//   remove -> destroy a panel
+//   snapshot -> reconcile the whole scene (on connect)
+//
+// This is the "spatial computing" element: panels are anchored in the room
+// (passthrough) and driven by the shared world model, not by local state.
+//
+// Setup: attach to a GameObject, assign the XrosClient and a panelPrefab
+// (a quad/canvas with a TMP_Text child named "Title"). The prefab's text is
+// set from the object's properties.title.
+
+using System.Collections.Generic;
+using Newtonsoft.Json.Linq;
+using TMPro;
+using UnityEngine;
+
+public class WorldPanelManager : MonoBehaviour
+{
+    public XrosClient client;
+    public GameObject panelPrefab;
+
+    private readonly Dictionary<string, GameObject> panels = new Dictionary<string, GameObject>();
+
+    private void OnEnable()
+    {
+        if (client != null) client.OnMessage += HandleMessage;
+    }
+
+    private void OnDisable()
+    {
+        if (client != null) client.OnMessage -= HandleMessage;
+    }
+
+    private void HandleMessage(JObject msg)
+    {
+        string op = msg["op"]?.ToString();
+        switch (op)
+        {
+            case "spawn":
+                Spawn(msg["object"] as JObject);
+                break;
+            case "move":
+                Move(msg["object"] as JObject);
+                break;
+            case "remove":
+                Remove(msg["id"]?.ToString());
+                break;
+            case "snapshot":
+                foreach (var o in msg["objects"] ?? new JArray())
+                    Spawn(o as JObject);
+                break;
+        }
+    }
+
+    private void Spawn(JObject obj)
+    {
+        if (obj == null) return;
+        string id = obj["id"]?.ToString();
+        if (id == null || panels.ContainsKey(id)) return;
+
+        var go = Instantiate(panelPrefab, transform);
+        go.name = $"panel_{id}";
+        ApplyPose(go, obj["pose"] as JObject);
+        ApplyTitle(go, obj["properties"] as JObject);
+        panels[id] = go;
+    }
+
+    private void Move(JObject obj)
+    {
+        if (obj == null) return;
+        string id = obj["id"]?.ToString();
+        if (id == null || !panels.TryGetValue(id, out var go)) return;
+        ApplyPose(go, obj["pose"] as JObject);
+    }
+
+    private void Remove(string id)
+    {
+        if (id == null || !panels.TryGetValue(id, out var go)) return;
+        Destroy(go);
+        panels.Remove(id);
+    }
+
+    private void ApplyPose(GameObject go, JObject pose)
+    {
+        if (pose == null) return;
+        var pos = pose["position"] as JArray;
+        if (pos != null && pos.Count >= 3)
+            go.transform.localPosition = new Vector3(
+                (float)pos[0], (float)pos[1], (float)pos[2]);
+    }
+
+    private void ApplyTitle(GameObject go, JObject properties)
+    {
+        string title = properties?["title"]?.ToString();
+        if (string.IsNullOrEmpty(title)) return;
+        var text = go.GetComponentInChildren<TMP_Text>();
+        if (text != null) text.text = title;
+    }
+}