From 3986e1fe3abdf94658bae0dcfcb2fdd3ee8fda56 Mon Sep 17 00:00:00 2001
From: ThorstenB <brehmt@gmail.com>
Date: Mon, 30 Apr 2012 19:04:49 +0200
Subject: [PATCH] Add separate switch to enable/disable AI scenario support.
 Switch is enabled automatically when scenarios are given on command-line.

---
 src/AIModel/AIManager.cxx | 9 +++++++++
 src/Main/options.cxx      | 4 ++--
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/src/AIModel/AIManager.cxx b/src/AIModel/AIManager.cxx
index 7f7b5bab2..c5ea283fc 100644
--- a/src/AIModel/AIManager.cxx
+++ b/src/AIModel/AIManager.cxx
@@ -89,6 +89,15 @@ FGAIManager::init() {
 void
 FGAIManager::postinit() {
     // postinit, so that it can access the Nasal subsystem
+
+    if (!root->getBoolValue("scenarios-enabled", true))
+        return;
+
+    // scenarios enabled, AI subsystem required
+    if (!enabled->getBoolValue())
+        enabled->setBoolValue(true);
+
+    // process all scenarios
     map<string, bool> scenarios;
     for (int i = 0 ; i < root->nChildren() ; i++) {
         SGPropertyNode *n = root->getChild(i);
diff --git a/src/Main/options.cxx b/src/Main/options.cxx
index 52df477ac..9a5c84dd8 100644
--- a/src/Main/options.cxx
+++ b/src/Main/options.cxx
@@ -1156,7 +1156,7 @@ fgOptScenario( const char *arg )
     }
     SGPropertyNode_ptr scenario = ai_node->getNode( "scenario", index + 1, true );
     scenario->setStringValue( arg );
-    ai_node->setBoolValue( "enabled", true );
+    ai_node->setBoolValue( "scenarios-enabled", true );
     return FG_OPTIONS_OK;
 }
 
@@ -1165,7 +1165,7 @@ fgOptNoScenarios( const char *arg )
 {
     SGPropertyNode_ptr ai_node = fgGetNode( "/sim/ai", true );
     ai_node->removeChildren("scenario",false);
-    ai_node->setBoolValue( "enabled", false );
+    ai_node->setBoolValue( "scenarios-enabled", false );
     return FG_OPTIONS_OK;
 }
 
-- 
2.39.5