Avoid error on inserting train without start time

Roeterdink · Roeterdink · commit 81b11f77fb4e · 2023-01-21T18:19:57.000+01:00
diff --git a/Source/Orts.Simulation/Simulation/AIs/AI.cs b/Source/Orts.Simulation/Simulation/AIs/AI.cs
@@ -1408,6 +1408,12 @@ public class StartTrains : LinkedList<AITrain>
 
         public void InsertTrain(AITrain thisTrain)
         {
+            if (thisTrain.StartTime == null)
+            {
+                Trace.TraceInformation("Train : " + thisTrain.Name + " : missing start time, train not included");
+                return;
+            }
+            
             if (this.Count == 0)
             {
                 this.AddFirst(thisTrain);

Original file line number	Diff line number	Diff line change
`@@ -1408,6 +1408,12 @@ public class StartTrains : LinkedList<AITrain>`
`1408`	`1408`
`1409`	`1409`	`public void InsertTrain(AITrain thisTrain)`
`1410`	`1410`	`{`
	`1411`	`+ if (thisTrain.StartTime == null)`
	`1412`	`+ {`
	`1413`	`+ Trace.TraceInformation("Train : " + thisTrain.Name + " : missing start time, train not included");`
	`1414`	`+ return;`
	`1415`	`+ }`
	`1416`	`+`
`1411`	`1417`	`if (this.Count == 0)`
`1412`	`1418`	`{`
`1413`	`1419`	`this.AddFirst(thisTrain);`