From f360e5070c96e460c2f3a71123b7afe919464175 Mon Sep 17 00:00:00 2001
From: vis2k <info@noobtuts.com>
Date: Sun, 17 Mar 2019 14:07:24 +0100
Subject: [PATCH] pong ball velocity only starts when both players are
 connected

---
 Assets/Mirror/Examples/Pong/Scripts/Ball.cs | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/Assets/Mirror/Examples/Pong/Scripts/Ball.cs b/Assets/Mirror/Examples/Pong/Scripts/Ball.cs
index a4fd896f9..b06bc7dda 100644
--- a/Assets/Mirror/Examples/Pong/Scripts/Ball.cs
+++ b/Assets/Mirror/Examples/Pong/Scripts/Ball.cs
@@ -10,9 +10,24 @@ public override void OnStartServer()
         {
             // only simulate ball physics on server
             GetComponent<Rigidbody2D>().simulated = true;
+        }
 
-            // Initial Velocity
-            GetComponent<Rigidbody2D>().velocity = Vector2.right * speed;
+        [ServerCallback]
+        void Update()
+        {
+            Rigidbody2D rb = GetComponent<Rigidbody2D>();
+
+            // if less than two players then reset ball
+            if (NetworkManager.singleton.numPlayers < 2)
+            {
+                rb.velocity = Vector2.zero;
+                transform.position = Vector2.zero;
+            }
+            // if two players joined, then enable velocity if not done yet
+            else if (NetworkManager.singleton.numPlayers == 2 && rb.velocity == Vector2.zero)
+            {
+                rb.velocity = Vector2.right * speed;
+            }
         }
 
         float HitFactor(Vector2 ballPos, Vector2 racketPos, float racketHeight)