diff --git a/src/script/api/ai/ai_error.hpp.sq b/src/script/api/ai/ai_error.hpp.sq
--- a/src/script/api/ai/ai_error.hpp.sq
+++ b/src/script/api/ai/ai_error.hpp.sq
@@ -21,39 +21,40 @@ void SQAIError_Register(Squirrel *engine
 	SQAIError.PreRegister(engine);
 	SQAIError.AddConstructor<void (ScriptError::*)(), 1>(engine, "x");
 
-	SQAIError.DefSQConst(engine, ScriptError::ERR_CAT_NONE,                     "ERR_CAT_NONE");
-	SQAIError.DefSQConst(engine, ScriptError::ERR_CAT_GENERAL,                  "ERR_CAT_GENERAL");
-	SQAIError.DefSQConst(engine, ScriptError::ERR_CAT_VEHICLE,                  "ERR_CAT_VEHICLE");
-	SQAIError.DefSQConst(engine, ScriptError::ERR_CAT_STATION,                  "ERR_CAT_STATION");
-	SQAIError.DefSQConst(engine, ScriptError::ERR_CAT_BRIDGE,                   "ERR_CAT_BRIDGE");
-	SQAIError.DefSQConst(engine, ScriptError::ERR_CAT_TUNNEL,                   "ERR_CAT_TUNNEL");
-	SQAIError.DefSQConst(engine, ScriptError::ERR_CAT_TILE,                     "ERR_CAT_TILE");
-	SQAIError.DefSQConst(engine, ScriptError::ERR_CAT_SIGN,                     "ERR_CAT_SIGN");
-	SQAIError.DefSQConst(engine, ScriptError::ERR_CAT_RAIL,                     "ERR_CAT_RAIL");
-	SQAIError.DefSQConst(engine, ScriptError::ERR_CAT_ROAD,                     "ERR_CAT_ROAD");
-	SQAIError.DefSQConst(engine, ScriptError::ERR_CAT_ORDER,                    "ERR_CAT_ORDER");
-	SQAIError.DefSQConst(engine, ScriptError::ERR_CAT_MARINE,                   "ERR_CAT_MARINE");
-	SQAIError.DefSQConst(engine, ScriptError::ERR_CAT_WAYPOINT,                 "ERR_CAT_WAYPOINT");
-	SQAIError.DefSQConst(engine, ScriptError::ERR_CAT_BIT_SIZE,                 "ERR_CAT_BIT_SIZE");
-	SQAIError.DefSQConst(engine, ScriptError::ERR_NONE,                         "ERR_NONE");
-	SQAIError.DefSQConst(engine, ScriptError::ERR_UNKNOWN,                      "ERR_UNKNOWN");
-	SQAIError.DefSQConst(engine, ScriptError::ERR_PRECONDITION_FAILED,          "ERR_PRECONDITION_FAILED");
-	SQAIError.DefSQConst(engine, ScriptError::ERR_PRECONDITION_STRING_TOO_LONG, "ERR_PRECONDITION_STRING_TOO_LONG");
-	SQAIError.DefSQConst(engine, ScriptError::ERR_PRECONDITION_INVALID_COMPANY, "ERR_PRECONDITION_INVALID_COMPANY");
-	SQAIError.DefSQConst(engine, ScriptError::ERR_NEWGRF_SUPPLIED_ERROR,        "ERR_NEWGRF_SUPPLIED_ERROR");
-	SQAIError.DefSQConst(engine, ScriptError::ERR_GENERAL_BASE,                 "ERR_GENERAL_BASE");
-	SQAIError.DefSQConst(engine, ScriptError::ERR_NOT_ENOUGH_CASH,              "ERR_NOT_ENOUGH_CASH");
-	SQAIError.DefSQConst(engine, ScriptError::ERR_LOCAL_AUTHORITY_REFUSES,      "ERR_LOCAL_AUTHORITY_REFUSES");
-	SQAIError.DefSQConst(engine, ScriptError::ERR_ALREADY_BUILT,                "ERR_ALREADY_BUILT");
-	SQAIError.DefSQConst(engine, ScriptError::ERR_AREA_NOT_CLEAR,               "ERR_AREA_NOT_CLEAR");
-	SQAIError.DefSQConst(engine, ScriptError::ERR_OWNED_BY_ANOTHER_COMPANY,     "ERR_OWNED_BY_ANOTHER_COMPANY");
-	SQAIError.DefSQConst(engine, ScriptError::ERR_NAME_IS_NOT_UNIQUE,           "ERR_NAME_IS_NOT_UNIQUE");
-	SQAIError.DefSQConst(engine, ScriptError::ERR_FLAT_LAND_REQUIRED,           "ERR_FLAT_LAND_REQUIRED");
-	SQAIError.DefSQConst(engine, ScriptError::ERR_LAND_SLOPED_WRONG,            "ERR_LAND_SLOPED_WRONG");
-	SQAIError.DefSQConst(engine, ScriptError::ERR_VEHICLE_IN_THE_WAY,           "ERR_VEHICLE_IN_THE_WAY");
-	SQAIError.DefSQConst(engine, ScriptError::ERR_SITE_UNSUITABLE,              "ERR_SITE_UNSUITABLE");
-	SQAIError.DefSQConst(engine, ScriptError::ERR_TOO_CLOSE_TO_EDGE,            "ERR_TOO_CLOSE_TO_EDGE");
-	SQAIError.DefSQConst(engine, ScriptError::ERR_STATION_TOO_SPREAD_OUT,       "ERR_STATION_TOO_SPREAD_OUT");
+	SQAIError.DefSQConst(engine, ScriptError::ERR_CAT_NONE,                         "ERR_CAT_NONE");
+	SQAIError.DefSQConst(engine, ScriptError::ERR_CAT_GENERAL,                      "ERR_CAT_GENERAL");
+	SQAIError.DefSQConst(engine, ScriptError::ERR_CAT_VEHICLE,                      "ERR_CAT_VEHICLE");
+	SQAIError.DefSQConst(engine, ScriptError::ERR_CAT_STATION,                      "ERR_CAT_STATION");
+	SQAIError.DefSQConst(engine, ScriptError::ERR_CAT_BRIDGE,                       "ERR_CAT_BRIDGE");
+	SQAIError.DefSQConst(engine, ScriptError::ERR_CAT_TUNNEL,                       "ERR_CAT_TUNNEL");
+	SQAIError.DefSQConst(engine, ScriptError::ERR_CAT_TILE,                         "ERR_CAT_TILE");
+	SQAIError.DefSQConst(engine, ScriptError::ERR_CAT_SIGN,                         "ERR_CAT_SIGN");
+	SQAIError.DefSQConst(engine, ScriptError::ERR_CAT_RAIL,                         "ERR_CAT_RAIL");
+	SQAIError.DefSQConst(engine, ScriptError::ERR_CAT_ROAD,                         "ERR_CAT_ROAD");
+	SQAIError.DefSQConst(engine, ScriptError::ERR_CAT_ORDER,                        "ERR_CAT_ORDER");
+	SQAIError.DefSQConst(engine, ScriptError::ERR_CAT_MARINE,                       "ERR_CAT_MARINE");
+	SQAIError.DefSQConst(engine, ScriptError::ERR_CAT_WAYPOINT,                     "ERR_CAT_WAYPOINT");
+	SQAIError.DefSQConst(engine, ScriptError::ERR_CAT_BIT_SIZE,                     "ERR_CAT_BIT_SIZE");
+	SQAIError.DefSQConst(engine, ScriptError::ERR_NONE,                             "ERR_NONE");
+	SQAIError.DefSQConst(engine, ScriptError::ERR_UNKNOWN,                          "ERR_UNKNOWN");
+	SQAIError.DefSQConst(engine, ScriptError::ERR_PRECONDITION_FAILED,              "ERR_PRECONDITION_FAILED");
+	SQAIError.DefSQConst(engine, ScriptError::ERR_PRECONDITION_STRING_TOO_LONG,     "ERR_PRECONDITION_STRING_TOO_LONG");
+	SQAIError.DefSQConst(engine, ScriptError::ERR_PRECONDITION_TOO_MANY_PARAMETERS, "ERR_PRECONDITION_TOO_MANY_PARAMETERS");
+	SQAIError.DefSQConst(engine, ScriptError::ERR_PRECONDITION_INVALID_COMPANY,     "ERR_PRECONDITION_INVALID_COMPANY");
+	SQAIError.DefSQConst(engine, ScriptError::ERR_NEWGRF_SUPPLIED_ERROR,            "ERR_NEWGRF_SUPPLIED_ERROR");
+	SQAIError.DefSQConst(engine, ScriptError::ERR_GENERAL_BASE,                     "ERR_GENERAL_BASE");
+	SQAIError.DefSQConst(engine, ScriptError::ERR_NOT_ENOUGH_CASH,                  "ERR_NOT_ENOUGH_CASH");
+	SQAIError.DefSQConst(engine, ScriptError::ERR_LOCAL_AUTHORITY_REFUSES,          "ERR_LOCAL_AUTHORITY_REFUSES");
+	SQAIError.DefSQConst(engine, ScriptError::ERR_ALREADY_BUILT,                    "ERR_ALREADY_BUILT");
+	SQAIError.DefSQConst(engine, ScriptError::ERR_AREA_NOT_CLEAR,                   "ERR_AREA_NOT_CLEAR");
+	SQAIError.DefSQConst(engine, ScriptError::ERR_OWNED_BY_ANOTHER_COMPANY,         "ERR_OWNED_BY_ANOTHER_COMPANY");
+	SQAIError.DefSQConst(engine, ScriptError::ERR_NAME_IS_NOT_UNIQUE,               "ERR_NAME_IS_NOT_UNIQUE");
+	SQAIError.DefSQConst(engine, ScriptError::ERR_FLAT_LAND_REQUIRED,               "ERR_FLAT_LAND_REQUIRED");
+	SQAIError.DefSQConst(engine, ScriptError::ERR_LAND_SLOPED_WRONG,                "ERR_LAND_SLOPED_WRONG");
+	SQAIError.DefSQConst(engine, ScriptError::ERR_VEHICLE_IN_THE_WAY,               "ERR_VEHICLE_IN_THE_WAY");
+	SQAIError.DefSQConst(engine, ScriptError::ERR_SITE_UNSUITABLE,                  "ERR_SITE_UNSUITABLE");
+	SQAIError.DefSQConst(engine, ScriptError::ERR_TOO_CLOSE_TO_EDGE,                "ERR_TOO_CLOSE_TO_EDGE");
+	SQAIError.DefSQConst(engine, ScriptError::ERR_STATION_TOO_SPREAD_OUT,           "ERR_STATION_TOO_SPREAD_OUT");
 
 	ScriptError::RegisterErrorMap(STR_ERROR_NOT_ENOUGH_CASH_REQUIRES_CURRENCY,          ScriptError::ERR_NOT_ENOUGH_CASH);
 	ScriptError::RegisterErrorMap(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS,      ScriptError::ERR_LOCAL_AUTHORITY_REFUSES);
@@ -90,24 +91,25 @@ void SQAIError_Register(Squirrel *engine
 	ScriptError::RegisterErrorMap(STR_ERROR_TOO_CLOSE_TO_EDGE_OF_MAP,                   ScriptError::ERR_TOO_CLOSE_TO_EDGE);
 	ScriptError::RegisterErrorMap(STR_ERROR_STATION_TOO_SPREAD_OUT,                     ScriptError::ERR_STATION_TOO_SPREAD_OUT);
 
-	ScriptError::RegisterErrorMapString(ScriptError::ERR_NONE,                         "ERR_NONE");
-	ScriptError::RegisterErrorMapString(ScriptError::ERR_UNKNOWN,                      "ERR_UNKNOWN");
-	ScriptError::RegisterErrorMapString(ScriptError::ERR_PRECONDITION_FAILED,          "ERR_PRECONDITION_FAILED");
-	ScriptError::RegisterErrorMapString(ScriptError::ERR_PRECONDITION_STRING_TOO_LONG, "ERR_PRECONDITION_STRING_TOO_LONG");
-	ScriptError::RegisterErrorMapString(ScriptError::ERR_PRECONDITION_INVALID_COMPANY, "ERR_PRECONDITION_INVALID_COMPANY");
-	ScriptError::RegisterErrorMapString(ScriptError::ERR_NEWGRF_SUPPLIED_ERROR,        "ERR_NEWGRF_SUPPLIED_ERROR");
-	ScriptError::RegisterErrorMapString(ScriptError::ERR_NOT_ENOUGH_CASH,              "ERR_NOT_ENOUGH_CASH");
-	ScriptError::RegisterErrorMapString(ScriptError::ERR_LOCAL_AUTHORITY_REFUSES,      "ERR_LOCAL_AUTHORITY_REFUSES");
-	ScriptError::RegisterErrorMapString(ScriptError::ERR_ALREADY_BUILT,                "ERR_ALREADY_BUILT");
-	ScriptError::RegisterErrorMapString(ScriptError::ERR_AREA_NOT_CLEAR,               "ERR_AREA_NOT_CLEAR");
-	ScriptError::RegisterErrorMapString(ScriptError::ERR_OWNED_BY_ANOTHER_COMPANY,     "ERR_OWNED_BY_ANOTHER_COMPANY");
-	ScriptError::RegisterErrorMapString(ScriptError::ERR_NAME_IS_NOT_UNIQUE,           "ERR_NAME_IS_NOT_UNIQUE");
-	ScriptError::RegisterErrorMapString(ScriptError::ERR_FLAT_LAND_REQUIRED,           "ERR_FLAT_LAND_REQUIRED");
-	ScriptError::RegisterErrorMapString(ScriptError::ERR_LAND_SLOPED_WRONG,            "ERR_LAND_SLOPED_WRONG");
-	ScriptError::RegisterErrorMapString(ScriptError::ERR_VEHICLE_IN_THE_WAY,           "ERR_VEHICLE_IN_THE_WAY");
-	ScriptError::RegisterErrorMapString(ScriptError::ERR_SITE_UNSUITABLE,              "ERR_SITE_UNSUITABLE");
-	ScriptError::RegisterErrorMapString(ScriptError::ERR_TOO_CLOSE_TO_EDGE,            "ERR_TOO_CLOSE_TO_EDGE");
-	ScriptError::RegisterErrorMapString(ScriptError::ERR_STATION_TOO_SPREAD_OUT,       "ERR_STATION_TOO_SPREAD_OUT");
+	ScriptError::RegisterErrorMapString(ScriptError::ERR_NONE,                             "ERR_NONE");
+	ScriptError::RegisterErrorMapString(ScriptError::ERR_UNKNOWN,                          "ERR_UNKNOWN");
+	ScriptError::RegisterErrorMapString(ScriptError::ERR_PRECONDITION_FAILED,              "ERR_PRECONDITION_FAILED");
+	ScriptError::RegisterErrorMapString(ScriptError::ERR_PRECONDITION_STRING_TOO_LONG,     "ERR_PRECONDITION_STRING_TOO_LONG");
+	ScriptError::RegisterErrorMapString(ScriptError::ERR_PRECONDITION_TOO_MANY_PARAMETERS, "ERR_PRECONDITION_TOO_MANY_PARAMETERS");
+	ScriptError::RegisterErrorMapString(ScriptError::ERR_PRECONDITION_INVALID_COMPANY,     "ERR_PRECONDITION_INVALID_COMPANY");
+	ScriptError::RegisterErrorMapString(ScriptError::ERR_NEWGRF_SUPPLIED_ERROR,            "ERR_NEWGRF_SUPPLIED_ERROR");
+	ScriptError::RegisterErrorMapString(ScriptError::ERR_NOT_ENOUGH_CASH,                  "ERR_NOT_ENOUGH_CASH");
+	ScriptError::RegisterErrorMapString(ScriptError::ERR_LOCAL_AUTHORITY_REFUSES,          "ERR_LOCAL_AUTHORITY_REFUSES");
+	ScriptError::RegisterErrorMapString(ScriptError::ERR_ALREADY_BUILT,                    "ERR_ALREADY_BUILT");
+	ScriptError::RegisterErrorMapString(ScriptError::ERR_AREA_NOT_CLEAR,                   "ERR_AREA_NOT_CLEAR");
+	ScriptError::RegisterErrorMapString(ScriptError::ERR_OWNED_BY_ANOTHER_COMPANY,         "ERR_OWNED_BY_ANOTHER_COMPANY");
+	ScriptError::RegisterErrorMapString(ScriptError::ERR_NAME_IS_NOT_UNIQUE,               "ERR_NAME_IS_NOT_UNIQUE");
+	ScriptError::RegisterErrorMapString(ScriptError::ERR_FLAT_LAND_REQUIRED,               "ERR_FLAT_LAND_REQUIRED");
+	ScriptError::RegisterErrorMapString(ScriptError::ERR_LAND_SLOPED_WRONG,                "ERR_LAND_SLOPED_WRONG");
+	ScriptError::RegisterErrorMapString(ScriptError::ERR_VEHICLE_IN_THE_WAY,               "ERR_VEHICLE_IN_THE_WAY");
+	ScriptError::RegisterErrorMapString(ScriptError::ERR_SITE_UNSUITABLE,                  "ERR_SITE_UNSUITABLE");
+	ScriptError::RegisterErrorMapString(ScriptError::ERR_TOO_CLOSE_TO_EDGE,                "ERR_TOO_CLOSE_TO_EDGE");
+	ScriptError::RegisterErrorMapString(ScriptError::ERR_STATION_TOO_SPREAD_OUT,           "ERR_STATION_TOO_SPREAD_OUT");
 
 	SQAIError.DefSQStaticMethod(engine, &ScriptError::GetErrorCategory,   "GetErrorCategory",   1, ".");
 	SQAIError.DefSQStaticMethod(engine, &ScriptError::GetLastError,       "GetLastError",       1, ".");