5 files changed, 59 insertions, 0 deletions
diff --git a/src/ai/ai_instance.cpp b/src/ai/ai_instance.cpp
index 0b140c172..0ab577a0e 100644
--- a/src/ai/ai_instance.cpp
+++ b/src/ai/ai_instance.cpp
@@ -60,6 +60,7 @@
 #include "api/ai_railtypelist.hpp.sq"
 #include "api/ai_road.hpp.sq"
 #include "api/ai_sign.hpp.sq"
+#include "api/ai_signlist.hpp.sq"
 #include "api/ai_station.hpp.sq"
 #include "api/ai_stationlist.hpp.sq"
 #include "api/ai_subsidy.hpp.sq"
@@ -212,6 +213,7 @@ void AIInstance::RegisterAPI()
 	SQAIRailTypeList_Register(this->engine);
 	SQAIRoad_Register(this->engine);
 	SQAISign_Register(this->engine);
+	SQAISignList_Register(this->engine);
 	SQAIStation_Register(this->engine);
 	SQAIStationList_Register(this->engine);
 	SQAIStationList_Vehicle_Register(this->engine);
diff --git a/src/ai/api/ai_sign.hpp b/src/ai/api/ai_sign.hpp
index d18cef817..e7e20dc46 100644
--- a/src/ai/api/ai_sign.hpp
+++ b/src/ai/api/ai_sign.hpp
@@ -30,6 +30,7 @@ public:
 
 	/**
 	 * Gets the maximum sign index; there are no valid signs with a higher index.
+	 * @deprecated This function is deprecated and might be removed in future versions of the API. Use AISignList() instead.
 	 * @return The maximum sign index.
 	 * @post Return value is always non-negative.
 	 */
diff --git a/src/ai/api/ai_signlist.cpp b/src/ai/api/ai_signlist.cpp
new file mode 100644
index 000000000..33cb7fed4
--- /dev/null
+++ b/src/ai/api/ai_signlist.cpp
@@ -0,0 +1,15 @@
+/* $Id$ */
+
+/** @file ai_signlist.cpp Implementation of AISignList and friends. */
+
+#include "ai_signlist.hpp"
+#include "ai_sign.hpp"
+#include "../../signs_base.h"
+
+AISignList::AISignList()
+{
+	Sign *s;
+	FOR_ALL_SIGNS(s) {
+		if (AISign::IsValidSign(s->index)) this->AddItem(s->index);
+	}
+}
diff --git a/src/ai/api/ai_signlist.hpp b/src/ai/api/ai_signlist.hpp
new file mode 100644
index 000000000..17faa9a80
--- /dev/null
+++ b/src/ai/api/ai_signlist.hpp
@@ -0,0 +1,20 @@
+/* $Id$ */
+
+/** @file ai_signlist.hpp List all the signs of your company. */
+
+#ifndef AI_SIGNLIST_HPP
+#define AI_SIGNLIST_HPP
+
+#include "ai_abstractlist.hpp"
+
+/**
+ * Create a list of signs your company has created.
+ * @ingroup AIList
+ */
+class AISignList : public AIAbstractList {
+public:
+	static const char *GetClassName() { return "AISignList"; }
+	AISignList();
+};
+
+#endif /* AI_SIGNLIST_HPP */
diff --git a/src/ai/api/ai_signlist.hpp.sq b/src/ai/api/ai_signlist.hpp.sq
new file mode 100644
index 000000000..b350e86f6
--- /dev/null
+++ b/src/ai/api/ai_signlist.hpp.sq
@@ -0,0 +1,21 @@
+/* $Id$ */
+/* THIS FILE IS AUTO-GENERATED; PLEASE DO NOT ALTER MANUALLY */
+
+#include "ai_signlist.hpp"
+
+namespace SQConvert {
+	/* Allow AISignList to be used as Squirrel parameter */
+	template <> AISignList *GetParam(ForceType<AISignList *>, HSQUIRRELVM vm, int index, SQAutoFreePointers *ptr) { SQUserPointer instance; sq_getinstanceup(vm, index, &instance, 0); return  (AISignList *)instance; }
+	template <> AISignList &GetParam(ForceType<AISignList &>, HSQUIRRELVM vm, int index, SQAutoFreePointers *ptr) { SQUserPointer instance; sq_getinstanceup(vm, index, &instance, 0); return *(AISignList *)instance; }
+	template <> const AISignList *GetParam(ForceType<const AISignList *>, HSQUIRRELVM vm, int index, SQAutoFreePointers *ptr) { SQUserPointer instance; sq_getinstanceup(vm, index, &instance, 0); return  (AISignList *)instance; }
+	template <> const AISignList &GetParam(ForceType<const AISignList &>, HSQUIRRELVM vm, int index, SQAutoFreePointers *ptr) { SQUserPointer instance; sq_getinstanceup(vm, index, &instance, 0); return *(AISignList *)instance; }
+	template <> int Return<AISignList *>(HSQUIRRELVM vm, AISignList *res) { if (res == NULL) { sq_pushnull(vm); return 1; } res->AddRef(); Squirrel::CreateClassInstanceVM(vm, "AISignList", res, NULL, DefSQDestructorCallback<AISignList>); return 1; }
+}; // namespace SQConvert
+
+void SQAISignList_Register(Squirrel *engine) {
+	DefSQClass <AISignList> SQAISignList("AISignList");
+	SQAISignList.PreRegister(engine, "AIAbstractList");
+	SQAISignList.AddConstructor<void (AISignList::*)(), 1>(engine, "x");
+
+	SQAISignList.PostRegister(engine);
+}