--- a/bin/ai/regression/regression.nut	Wed Feb 27 23:15:46 2008 +0000
+++ b/bin/ai/regression/regression.nut	Wed Feb 27 23:28:34 2008 +0000
@@ -475,6 +475,16 @@
 	for (local i = list.Begin(); list.HasNext(); i = list.Next()) {
 		print("    " + i + " => " + list.GetValue(i));
 	}
+	list2.Clear();
+	for (local i = 4000; i < 4003; i++) {
+		list2.AddItem(i, i);
+	}
+	list2.AddItem(1005, 1005);
+	list.AddList(list2);
+	print("  AddList({1005, 4000, 4001, 4002}):");
+	for (local i = list.Begin(); list.HasNext(); i = list.Next()) {
+		print("    " + i + " => " + list.GetValue(i));
+	}
 
 	list.Clear();
 	print("  IsEmpty():     " + list.IsEmpty());

--- a/bin/ai/regression/regression.txt	Wed Feb 27 23:15:46 2008 +0000
+++ b/bin/ai/regression/regression.txt	Wed Feb 27 23:28:34 2008 +0000
@@ -275,6 +275,11 @@
     1005 => -429346856
   KeepList({1003, 1004, 1005}):
     1005 => -429346856
+  AddList({1005, 4000, 4001, 4002}):
+    1005 => 1005
+    4000 => 4000
+    4001 => 4001
+    4002 => 4002
   IsEmpty():     true
 
 --AIAirport--

--- a/src/ai/api/ai_abstractlist.cpp	Wed Feb 27 23:15:46 2008 +0000
+++ b/src/ai/api/ai_abstractlist.cpp	Wed Feb 27 23:28:34 2008 +0000
@@ -325,6 +325,15 @@
 	this->sort_ascending = ascending;
 }
 
+void AIAbstractList::AddList(AIAbstractList *list)
+{
+	AIAbstractListMap *list_items = &list->items;
+	for (AIAbstractListMap::iterator iter = list_items->begin(); iter != list_items->end(); iter++) {
+		this->AddItem((*iter).first);
+		this->SetValue((*iter).first, (*iter).second);
+	}
+}
+
 void AIAbstractList::RemoveAboveValue(int32 value)
 {
 	for (AIAbstractListMap::iterator next_iter, iter = this->items.begin(); iter != this->items.end(); iter = next_iter) {

--- a/src/ai/api/ai_abstractlist.hpp	Wed Feb 27 23:15:46 2008 +0000
+++ b/src/ai/api/ai_abstractlist.hpp	Wed Feb 27 23:28:34 2008 +0000
@@ -134,6 +134,16 @@
 	void Sort(SorterType sorter, bool ascending);
 
 	/**
+	 * Add one list to an other one.
+	 * @param list The list that will be added to the caller.
+	 * @post The list to be added ('list') stays unmodified.
+	 * @note All added items keep their value as it was in 'list'.
+	 * @note If the item already exists inside the caller, the value of the
+	 *  list that is added is set on the item.
+	 */
+	void AddList(AIAbstractList *list);
+
+	/**
 	 * Removes all items with a higher value than 'value'.
 	 * @param value the value above which all items are removed.
 	 */

--- a/src/ai/api/ai_abstractlist.hpp.sq	Wed Feb 27 23:15:46 2008 +0000
+++ b/src/ai/api/ai_abstractlist.hpp.sq	Wed Feb 27 23:28:34 2008 +0000
@@ -39,6 +39,7 @@
 	SQAIAbstractList.DefSQMethod(engine, &AIAbstractList::GetValue,           "GetValue",           2, "xi");
 	SQAIAbstractList.DefSQMethod(engine, &AIAbstractList::SetValue,           "SetValue",           3, "xii");
 	SQAIAbstractList.DefSQMethod(engine, &AIAbstractList::Sort,               "Sort",               3, "xib");
+	SQAIAbstractList.DefSQMethod(engine, &AIAbstractList::AddList,            "AddList",            2, "xx");
 	SQAIAbstractList.DefSQMethod(engine, &AIAbstractList::RemoveAboveValue,   "RemoveAboveValue",   2, "xi");
 	SQAIAbstractList.DefSQMethod(engine, &AIAbstractList::RemoveBelowValue,   "RemoveBelowValue",   2, "xi");
 	SQAIAbstractList.DefSQMethod(engine, &AIAbstractList::RemoveBetweenValue, "RemoveBetweenValue", 3, "xii");