Index: src/ai/api/ai_industry.hpp
===================================================================
--- src/ai/api/ai_industry.hpp	(revision 12187)
+++ src/ai/api/ai_industry.hpp	(working copy)
@@ -24,7 +24,7 @@
 	 * @return the maximum industry index.
 	 * @post return value is always non-negative.
 	 */
-	IndustryID GetMaxIndustryID();
+	static IndustryID GetMaxIndustryID();
 
 	/**
 	 * Gets the number of industries. This is different than GetMaxIndustryID()
@@ -32,7 +32,7 @@
 	 * @return the number of industries.
 	 * @post return value is always non-negative.
 	 */
-	int32 GetIndustryCount();
+	static int32 GetIndustryCount();
 
 	/**
 	 * Checks whether the given industry index is valid.
@@ -48,7 +48,7 @@
 	 * @return the name of the industry.
 	 * @note the returned name must be free'd (C++ only).
 	 */
-	char *GetName(IndustryID industry_id);
+	static char *GetName(IndustryID industry_id);
 
 	/**
 	 * Gets the production of a cargo of the industry.
Index: src/ai/api/ai_industry.cpp
===================================================================
--- src/ai/api/ai_industry.cpp	(revision 12187)
+++ src/ai/api/ai_industry.cpp	(working copy)
@@ -8,12 +8,12 @@
 #include "../../strings_func.h"
 #include "table/strings.h"
 
-IndustryID AIIndustry::GetMaxIndustryID()
+/* static */ IndustryID AIIndustry::GetMaxIndustryID()
 {
 	return ::GetMaxIndustryIndex();
 }
 
-int32 AIIndustry::GetIndustryCount()
+/* static */ int32 AIIndustry::GetIndustryCount()
 {
 	return ::GetNumIndustries();
 }
@@ -23,9 +23,9 @@
 	return ::IsValidIndustryID(industry_id);
 }
 
-char *AIIndustry::GetName(IndustryID industry_id)
+/* static */ char *AIIndustry::GetName(IndustryID industry_id)
 {
-	if (!this->IsValidIndustry(industry_id)) return NULL;
+	if (!IsValidIndustry(industry_id)) return NULL;
 	static const int len = 64;
 	char *industry_name = MallocT<char>(len);
 
Index: src/ai/api/ai_industry.hpp.sq
===================================================================
--- src/ai/api/ai_industry.hpp.sq	(revision 12187)
+++ src/ai/api/ai_industry.hpp.sq	(working copy)
@@ -14,15 +14,14 @@
 	SQAIIndustry.PreRegister(engine);
 	SQAIIndustry.AddConstructor<void (AIIndustry::*)(), 1>(engine, "x");
 
-	SQAIIndustry.DefSQStaticMethod(engine, &AIIndustry::GetClassName,    "GetClassName",    1, "x");
-	SQAIIndustry.DefSQStaticMethod(engine, &AIIndustry::IsValidIndustry, "IsValidIndustry", 2, "xi");
-	SQAIIndustry.DefSQStaticMethod(engine, &AIIndustry::GetProduction,   "GetProduction",   3, "xii");
-	SQAIIndustry.DefSQStaticMethod(engine, &AIIndustry::IsCargoAccepted, "IsCargoAccepted", 3, "xii");
-	SQAIIndustry.DefSQStaticMethod(engine, &AIIndustry::GetLocation,     "GetLocation",     2, "xi");
+	SQAIIndustry.DefSQStaticMethod(engine, &AIIndustry::GetClassName,     "GetClassName",     1, "x");
+	SQAIIndustry.DefSQStaticMethod(engine, &AIIndustry::GetMaxIndustryID, "GetMaxIndustryID", 1, "x");
+	SQAIIndustry.DefSQStaticMethod(engine, &AIIndustry::GetIndustryCount, "GetIndustryCount", 1, "x");
+	SQAIIndustry.DefSQStaticMethod(engine, &AIIndustry::IsValidIndustry,  "IsValidIndustry",  2, "xi");
+	SQAIIndustry.DefSQStaticMethod(engine, &AIIndustry::GetName,          "GetName",          2, "xi");
+	SQAIIndustry.DefSQStaticMethod(engine, &AIIndustry::GetProduction,    "GetProduction",    3, "xii");
+	SQAIIndustry.DefSQStaticMethod(engine, &AIIndustry::IsCargoAccepted,  "IsCargoAccepted",  3, "xii");
+	SQAIIndustry.DefSQStaticMethod(engine, &AIIndustry::GetLocation,      "GetLocation",      2, "xi");
 
-	SQAIIndustry.DefSQMethod(engine, &AIIndustry::GetMaxIndustryID, "GetMaxIndustryID", 1, "x");
-	SQAIIndustry.DefSQMethod(engine, &AIIndustry::GetIndustryCount, "GetIndustryCount", 1, "x");
-	SQAIIndustry.DefSQMethod(engine, &AIIndustry::GetName,          "GetName",          2, "xi");
-
 	SQAIIndustry.PostRegister(engine);
 }