From e27d12d7888c6559d9d9a1434b485f158c561dd3 Mon Sep 17 00:00:00 2001
From: rubidium <rubidium@openttd.org>
Date: Thu, 12 Mar 2009 15:14:22 +0000
Subject: (svn r15689) -Fix [FS#2720]: do not crash when the generate map
 doesn't contain a suitable location for a town.

---
 src/genworld.cpp | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

(limited to 'src/genworld.cpp')

diff --git a/src/genworld.cpp b/src/genworld.cpp
index f8a865397..dfae4822e 100644
--- a/src/genworld.cpp
+++ b/src/genworld.cpp
@@ -141,7 +141,10 @@ static void _GenerateWorld(void *arg)
 
 			/* only generate towns, tree and industries in newgame mode. */
 			if (_game_mode != GM_EDITOR) {
-				GenerateTowns(_settings_game.economy.town_layout);
+				if (!GenerateTowns(_settings_game.economy.town_layout)) {
+					HandleGeneratingWorldAbortion();
+					return;
+				}
 				GenerateIndustries();
 				GenerateUnmovables();
 				GenerateTrees();
@@ -255,7 +258,10 @@ void HandleGeneratingWorldAbortion()
 
 	CleanupGeneration();
 
-	_gw.thread->Exit();
+	if (_gw.thread != NULL) _gw.thread->Exit();
+
+	extern void SwitchToMode(SwitchMode new_mode);
+	SwitchToMode(_switch_mode);
 }
 
 /**
-- 
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