From 7d786e4d89080180b3e8c1d256d561400ebe876c Mon Sep 17 00:00:00 2001
From: orwell96 <orwell@bleipb.de>
Date: Mon, 15 Mar 2021 18:17:12 +0100
Subject: [PATCH] Fix crash on simulation loading caused by missing signal
 actions list

---
 simulation/trains.go | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/simulation/trains.go b/simulation/trains.go
index 5619767..1e21ce4 100644
--- a/simulation/trains.go
+++ b/simulation/trains.go
@@ -378,6 +378,17 @@ func (t *Train) updateSignalActions() {
 		}
 		t.lastSignal = nextSignal
 	}
+	
+	// make sure that at least one signal action is present now
+	// if not, accelerate to maximum speed
+	if len(t.signalActions) == 0 {
+		t.signalActions = []SignalAction{{
+			Target: ASAP,
+			Speed:  VeryHighSpeed,
+		}}
+		t.setActionIndex(0)
+		return
+	}
 
 	currentTime := t.simulation.Options.CurrentTime
 	if math.Abs(t.Speed-t.ApplicableAction().Speed) < 0.1 {