From fad737b41ef9029a64b6556d50ec915e5c6fafcb Mon Sep 17 00:00:00 2001
From: mfranz <mfranz>
Date: Fri, 3 Aug 2007 18:02:33 +0000
Subject: [PATCH] prevent multiple loading of one and the same scenario

---
 src/AIModel/AIManager.cxx | 23 +++++++++++++++++------
 src/AIModel/AIManager.hxx |  2 --
 2 files changed, 17 insertions(+), 8 deletions(-)

diff --git a/src/AIModel/AIManager.cxx b/src/AIModel/AIManager.cxx
index 19a6c76b1..cec1980ac 100644
--- a/src/AIModel/AIManager.cxx
+++ b/src/AIModel/AIManager.cxx
@@ -79,13 +79,24 @@ FGAIManager::init() {
 void
 FGAIManager::postinit() {
     // postinit, so that it can access the Nasal subsystem
-    for(int i = 0 ; i < root->nChildren() ; i++) {
-        SGPropertyNode *aiEntry = root->getChild( i );
-        if( !strcmp( aiEntry->getName(), "scenario" ) ) {
-            scenario_filename = aiEntry->getStringValue();
-            if (!scenario_filename.empty())
-                processScenario( scenario_filename );
+    map<string, bool> scenarios;
+    for (int i = 0 ; i < root->nChildren() ; i++) {
+        SGPropertyNode *n = root->getChild(i);
+        if (strcmp(n->getName(), "scenario"))
+            continue;
+
+        string name = n->getStringValue();
+        if (name.empty())
+            continue;
+
+        if (scenarios.find(name) != scenarios.end()) {
+            SG_LOG(SG_GENERAL, SG_WARN, "won't load scenario '" << name << "' twice");
+            continue;
         }
+
+        SG_LOG(SG_GENERAL, SG_INFO, "loading scenario '" << name << '\'');
+        processScenario(name);
+        scenarios[name] = true;
     }
 }
 
diff --git a/src/AIModel/AIManager.hxx b/src/AIModel/AIManager.hxx
index a327421ef..2bcd4a541 100644
--- a/src/AIModel/AIManager.hxx
+++ b/src/AIModel/AIManager.hxx
@@ -110,8 +110,6 @@ private:
     SGPropertyNode_ptr wind_from_east_node;
     SGPropertyNode_ptr wind_from_north_node;
 
-    string scenario_filename;
-
     double user_latitude;
     double user_longitude;
     double user_altitude;
-- 
2.39.5