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Assets/Mirror/Examples/RigidbodyBenchmark/Scripts/RigidbodyBenchmarkNetworkManager.cs

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+using UnityEngine;
+
+namespace Mirror.Examples.RigidbodyBenchmark
+{
+    [AddComponentMenu("")]
+    public class RigidbodyBenchmarkNetworkManager : NetworkManager
+    {
+        [Header("Spawns")]
+        public GameObject spawnPrefab;
+        public int spawnAmount = 2000;
+        public float interleave = 2;
+
+        void SpawnAll()
+        {
+            // calculate sqrt so we can spawn N * N = Amount
+            float sqrt = Mathf.Sqrt(spawnAmount);
+
+            // calculate spawn xz start positions
+            // based on spawnAmount * distance
+            float offset = -sqrt / 2 * interleave;
+
+            // spawn exactly the amount, not one more.
+            int spawned = 0;
+            for (int spawnX = 0; spawnX < sqrt; ++spawnX)
+            {
+                for (int spawnZ = 0; spawnZ < sqrt; ++spawnZ)
+                {
+                    // spawn exactly the amount, not any more
+                    // (our sqrt method isn't 100% precise)
+                    if (spawned < spawnAmount)
+                    {
+                        // instantiate & position
+                        GameObject go = Instantiate(spawnPrefab);
+                        float x = offset + spawnX * interleave;
+                        float z = offset + spawnZ * interleave;
+                        go.transform.position = new Vector3(x, 0, z);
+
+                        // spawn
+                        NetworkServer.Spawn(go);
+                        ++spawned;
+                    }
+                }
+            }
+        }
+
+        public override void OnStartServer()
+        {
+            base.OnStartServer();
+            SpawnAll();
+        }
+    }
+}