From: Mikko Rasa <tdb@tdb.fi>
Date: Tue, 24 Mar 2015 10:07:47 +0000 (+0200)
Subject: Avoid negative values of wait_time
X-Git-Url: http://git.tdb.fi/?a=commitdiff_plain;h=61dbeed5017acf9d8e7eeb5ecf1df23d6e546afd;p=r2c2.git

Avoid negative values of wait_time
---

diff --git a/source/libr2c2/trainrouteplanner.cpp b/source/libr2c2/trainrouteplanner.cpp
index 43c6128..476d102 100644
--- a/source/libr2c2/trainrouteplanner.cpp
+++ b/source/libr2c2/trainrouteplanner.cpp
@@ -493,15 +493,16 @@ void TrainRoutePlanner::TrainRoutingState::advance(const Time::TimeDelta &dt)
 	if(estimated_wait)
 		estimated_wait = max(estimated_wait-secs*Time::sec, Time::zero);
 
-	if(state==MOVING)
+	float distance = info->speed*secs;
+	float remaining_on_track = occupied_tracks->path_length-offset;
+	if(state==MOVING || distance<remaining_on_track)
 		advance(info->speed*secs);
 	else if(state!=ARRIVED)
 	{
-		float remaining_distance = occupied_tracks->path_length-offset;
-		if(remaining_distance>0)
+		if(remaining_on_track>0)
 		{
-			advance(remaining_distance);
-			wait_time += (secs-remaining_distance/info->speed)*Time::sec;
+			advance(remaining_on_track);
+			wait_time += (secs-remaining_on_track/info->speed)*Time::sec;
 		}
 		else
 			wait_time += secs*Time::sec;