Load map scripts as modules

Because its a function `GenerateMap` is renamed to `generateMap`.

Allows to rewrite the libraries as modules and to remove the costum
`Engine.LoadLibrary` mechanism in the future.

binaries/data/mods/public/maps/random/aegean_sea.js

@@ -1,7 +1,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap()
+export function* generateMap()
 {
 	TILE_CENTERED_HEIGHT_MAP = true;
 

binaries/data/mods/public/maps/random/african_plains.js

@@ -2,7 +2,7 @@ Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	setBiome(mapSettings.Biome);
 

binaries/data/mods/public/maps/random/alpine_lakes.js

@@ -2,7 +2,7 @@ Engine.LoadLibrary("rmbiome");
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	setBiome(mapSettings.Biome);
 	const isLateSpringBiome = mapSettings.Biome === "alpine/late_spring";

binaries/data/mods/public/maps/random/alpine_valley.js

@@ -234,7 +234,7 @@ MountainRangeBuilder.prototype.CreateMountainRanges = function*(map)
 	}
 };
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	setBiome(mapSettings.Biome);
 

binaries/data/mods/public/maps/random/ambush.js

@@ -3,7 +3,7 @@ Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmgen2");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	setBiome(mapSettings.Biome);
 

binaries/data/mods/public/maps/random/anatolian_plateau.js

@@ -1,7 +1,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	const tPrimary = ["steppe_grass_a", "steppe_grass_c", "steppe_grass_d"];
 	const tGrass = ["steppe_grass_a", "steppe_grass_b", "steppe_grass_c", "steppe_grass_d"];

binaries/data/mods/public/maps/random/archipelago.js

@@ -2,7 +2,7 @@ Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	TILE_CENTERED_HEIGHT_MAP = true;
 

binaries/data/mods/public/maps/random/arctic_summer.js

@@ -1,7 +1,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	setFogThickness(0.46);
 	setFogFactor(0.5);

binaries/data/mods/public/maps/random/ardennes_forest.js

@@ -2,7 +2,7 @@ Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	setBiome("generic/temperate");
 

binaries/data/mods/public/maps/random/atlas_mountains.js

@@ -1,7 +1,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	const tPrimary = ["medit_rocks_grass", "medit_rocks_grass", "medit_rocks_grass",
 		"medit_rocks_grass", "medit_rocks_grass_shrubs", "medit_rocks_shrubs"];

binaries/data/mods/public/maps/random/bahrain.js

@@ -21,7 +21,7 @@ Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmgen2");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	setBiome("generic/sahara");
 	setLandBiome();

binaries/data/mods/public/maps/random/belgian_uplands.js

@@ -2,7 +2,7 @@ Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("heightmap");
 
-function* GenerateMap()
+export function* generateMap()
 {
 	const tPrimary = ["temp_grass", "temp_grass_b", "temp_grass_c", "temp_grass_d",
 		"temp_grass_long_b", "temp_grass_clovers_2", "temp_grass_mossy", "temp_grass_plants"];

binaries/data/mods/public/maps/random/botswanan_haven.js

@@ -1,7 +1,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	const tGrassA = "savanna_shrubs_a_wetseason";
 	const tGrassB = "savanna_shrubs_a";

binaries/data/mods/public/maps/random/caledonian_meadows.js

@@ -3,7 +3,7 @@ Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmbiome");
 Engine.LoadLibrary("heightmap");
 
-function* GenerateMap()
+export function* generateMap()
 {
 	const tGrove = "temp_grass_plants";
 	const tPath = "road_rome_a";

binaries/data/mods/public/maps/random/cantabrian_highlands.js

@@ -2,7 +2,7 @@ Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	setBiome(mapSettings.Biome);
 

binaries/data/mods/public/maps/random/canyon.js

@@ -2,7 +2,7 @@ Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	setBiome(mapSettings.Biome);
 

binaries/data/mods/public/maps/random/coast_range.js

@@ -2,9 +2,8 @@ Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
-
 	setBiome(mapSettings.Biome);
 
 	const tMainTerrain = g_Terrains.mainTerrain;

binaries/data/mods/public/maps/random/continent.js

@@ -2,7 +2,7 @@ Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	setBiome(mapSettings.Biome);
 

binaries/data/mods/public/maps/random/corinthian_isthmus.js

@@ -2,7 +2,7 @@ Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	setBiome(mapSettings.Biome);
 

binaries/data/mods/public/maps/random/corsica.js

@@ -1,7 +1,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap()
+export function* generateMap()
 {
 	const tGrass = ["medit_grass_field", "medit_grass_field_b", "temp_grass_c"];
 	const tLushGrass = ["medit_grass_field", "medit_grass_field_a"];

binaries/data/mods/public/maps/random/cycladic_archipelago.js

@@ -1,7 +1,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap()
+export function* generateMap()
 {
 	const tOceanRockDeep = "medit_sea_coral_deep";
 	const tOceanCoral = "medit_sea_coral_plants";

binaries/data/mods/public/maps/random/danubius.js

@@ -1,7 +1,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	const day = mapSettings.Daytime !== undefined ? mapSettings.Daytime == "day" : randBool(2/3);
 

binaries/data/mods/public/maps/random/deep_forest.js

@@ -1,7 +1,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap()
+export function* generateMap()
 {
 	const templateStone = "gaia/rock/temperate_small";
 	const templateStoneMine = "gaia/rock/temperate_large";

binaries/data/mods/public/maps/random/dodecanese.js

@@ -1,7 +1,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap()
+export function* generateMap()
 {
 	TILE_CENTERED_HEIGHT_MAP = true;
 

binaries/data/mods/public/maps/random/elephantine.js

@@ -18,7 +18,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	TILE_CENTERED_HEIGHT_MAP = true;
 

binaries/data/mods/public/maps/random/empire.js

@@ -3,7 +3,7 @@ Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmgen2");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	setBiome(mapSettings.Biome);
 

binaries/data/mods/public/maps/random/english_channel.js

@@ -1,7 +1,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap()
+export function* generateMap()
 {
 	const tPrimary = "temp_grass_long";
 	const tGrass = ["temp_grass", "temp_grass", "temp_grass_d"];

binaries/data/mods/public/maps/random/extinct_volcano.js

@@ -1,7 +1,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	const tHillDark = "cliff volcanic light";
 	const tHillMedium1 = "ocean_rock_a";

binaries/data/mods/public/maps/random/fields_of_meroe.js

@@ -2,7 +2,7 @@ Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	setBiome(mapSettings.Biome);
 

binaries/data/mods/public/maps/random/flood.js

@@ -2,7 +2,7 @@ Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	setBiome(mapSettings.Biome);
 

binaries/data/mods/public/maps/random/foothills.js

@@ -2,7 +2,7 @@ Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	setBiome(mapSettings.Biome);
 

binaries/data/mods/public/maps/random/fortress.js

@@ -1,7 +1,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap()
+export function* generateMap()
 {
 	const tGrass = ["temperate_grass_04", "temperate_grass_03", "temperate_grass_04"];
 	const tForestFloor = "temperate_forestfloor_01";

binaries/data/mods/public/maps/random/frontier.js

@@ -3,7 +3,7 @@ Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmgen2");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	setBiome(mapSettings.Biome);
 

binaries/data/mods/public/maps/random/gear.js

@@ -2,7 +2,7 @@ Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	TILE_CENTERED_HEIGHT_MAP = true;
 

binaries/data/mods/public/maps/random/guadalquivir_river.js

@@ -1,7 +1,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap()
+export function* generateMap()
 {
 	const tGrass = ["medit_grass_field_a", "medit_grass_field_b"];
 	const tForestFloorC = "medit_plants_dirt";

binaries/data/mods/public/maps/random/gulf_of_bothnia.js

@@ -2,7 +2,7 @@ Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	TILE_CENTERED_HEIGHT_MAP = true;
 

binaries/data/mods/public/maps/random/harbor.js

@@ -3,7 +3,7 @@ Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmgen2");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	setBiome(mapSettings.Biome);
 

binaries/data/mods/public/maps/random/hellas.js

@@ -18,7 +18,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	TILE_CENTERED_HEIGHT_MAP = true;
 

binaries/data/mods/public/maps/random/hells_pass.js

@@ -3,7 +3,7 @@ Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmgen2");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	setBiome(mapSettings.Biome);
 

binaries/data/mods/public/maps/random/hyrcanian_shores.js

@@ -2,7 +2,7 @@ Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	setBiome(mapSettings.Biome);
 

binaries/data/mods/public/maps/random/india.js

@@ -1,7 +1,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	const tGrass1 = "savanna_grass_a";
 	const tDirt1 = "savanna_dirt_a";

binaries/data/mods/public/maps/random/island_stronghold.js

@@ -3,7 +3,7 @@ Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmgen2");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	const g_InitialMineDistance = 14;
 	const g_InitialTrees = 50;

binaries/data/mods/public/maps/random/islands.js

@@ -2,7 +2,7 @@ Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	TILE_CENTERED_HEIGHT_MAP = true;
 

binaries/data/mods/public/maps/random/jebel_barkal.js

@@ -7,7 +7,7 @@ Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("heightmap");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	TILE_CENTERED_HEIGHT_MAP = true;
 

binaries/data/mods/public/maps/random/kerala.js

@@ -1,7 +1,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap()
+export function* generateMap()
 {
 	const tGrass = [
 		"tropic_grass_c",

binaries/data/mods/public/maps/random/lake.js

@@ -2,7 +2,7 @@ Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	setBiome(mapSettings.Biome);
 

binaries/data/mods/public/maps/random/land_grab.js

@@ -2,7 +2,7 @@ Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	setBiome(mapSettings.Biome);
 

binaries/data/mods/public/maps/random/latium.js

@@ -1,7 +1,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap()
+export function* generateMap()
 {
 	const tOceanDepths = "medit_sea_depths";
 	const tOceanRockDeep = "medit_sea_coral_deep";

binaries/data/mods/public/maps/random/lions_den.js

@@ -3,7 +3,7 @@ Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmgen2");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	setBiome(mapSettings.Biome);
 

binaries/data/mods/public/maps/random/lorraine_plain.js

@@ -1,7 +1,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap()
+export function* generateMap()
 {
 	const tPrimary = "temp_grass_long";
 	const tGrass = ["temp_grass", "temp_grass", "temp_grass_d"];

binaries/data/mods/public/maps/random/lower_nubia.js

@@ -32,7 +32,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	TILE_CENTERED_HEIGHT_MAP = true;
 

binaries/data/mods/public/maps/random/mainland.js

@@ -2,7 +2,7 @@ Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	setBiome(mapSettings.Biome);
 

binaries/data/mods/public/maps/random/marmara.js

@@ -20,7 +20,7 @@ Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmgen2");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	setBiome("generic/aegean");
 

binaries/data/mods/public/maps/random/mediterranean.js

@@ -21,7 +21,7 @@ Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmgen2");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	TILE_CENTERED_HEIGHT_MAP = true;
 

binaries/data/mods/public/maps/random/migration.js

@@ -2,7 +2,7 @@ Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	setBiome(mapSettings.Biome);
 

binaries/data/mods/public/maps/random/neareastern_badlands.js

@@ -2,7 +2,7 @@ Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	setBiome(mapSettings.Biome);
 

binaries/data/mods/public/maps/random/new_rms_test.js

@@ -1,7 +1,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap()
+export function* generateMap()
 {
 	globalThis.g_Map = new RandomMap(0, "grass1_spring");
 

binaries/data/mods/public/maps/random/ngorongoro.js

@@ -21,7 +21,7 @@ Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmgen2");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	setBiome("generic/savanna");
 

binaries/data/mods/public/maps/random/northern_lights.js

@@ -1,7 +1,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap()
+export function* generateMap()
 {
 	const tSnowA = ["polar_snow_b"];
 	const tSnowB = "polar_ice_snow";

binaries/data/mods/public/maps/random/oasis.js

@@ -1,7 +1,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap()
+export function* generateMap()
 {
 	const tSand = [
 		"desert_sand_dunes_100",

binaries/data/mods/public/maps/random/persian_highlands.js

@@ -2,7 +2,7 @@ Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	setBiome(mapSettings.Biome);
 

binaries/data/mods/public/maps/random/phoenician_levant.js

@@ -1,7 +1,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap()
+export function* generateMap()
 {
 	const tCity = "medit_city_pavement";
 	const tCityPlaza = "medit_city_pavement";

binaries/data/mods/public/maps/random/polar_sea.js

@@ -1,7 +1,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	const tPrimary = ["alpine_snow_01"];
 	const tSecondary = "alpine_snow_02";

binaries/data/mods/public/maps/random/pompeii.js

@@ -21,7 +21,7 @@ Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmgen2");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	setBiome("generic/aegean");
 

binaries/data/mods/public/maps/random/pyrenean_sierra.js

@@ -1,7 +1,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap()
+export function* generateMap()
 {
 	TILE_CENTERED_HEIGHT_MAP = true;
 

binaries/data/mods/public/maps/random/ratumacos.js

@@ -21,7 +21,7 @@ Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmgen2");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	setBiome("generic/alpine");
 

binaries/data/mods/public/maps/random/red_sea.js

@@ -20,7 +20,7 @@ Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmgen2");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	TILE_CENTERED_HEIGHT_MAP = true;
 

binaries/data/mods/public/maps/random/rhine_marshlands.js

@@ -1,7 +1,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	const tGrass = ["temp_grass", "temp_grass", "temp_grass_d"];
 	const tForestFloor = "temp_plants_bog";

binaries/data/mods/public/maps/random/river_archipelago.js

@@ -1,7 +1,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap()
+export function* generateMap()
 {
 	const tGrass = [
 		"tropic_grass_c",

binaries/data/mods/public/maps/random/rivers.js

@@ -2,7 +2,7 @@ Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	setBiome(mapSettings.Biome);
 

binaries/data/mods/public/maps/random/saharan_oases.js

@@ -1,7 +1,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap()
+export function* generateMap()
 {
 	const tPrimary = "desert_sand_dunes_100";
 	const tCity = "desert_city_tile";

binaries/data/mods/public/maps/random/sahel.js

@@ -1,7 +1,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	const tPrimary = "savanna_grass_a";
 	const tGrass2 = "savanna_grass_b";

binaries/data/mods/public/maps/random/sahel_watering_holes.js

@@ -1,7 +1,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap()
+export function* generateMap()
 {
 	const tGrass = "savanna_grass_a";
 	const tForestFloor = "savanna_forestfloor_a";

binaries/data/mods/public/maps/random/schwarzwald.js

@@ -2,7 +2,7 @@ Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("heightmap");
 
-function* GenerateMap()
+export function* generateMap()
 {
 	setSkySet("fog");
 	setFogFactor(0.35);

binaries/data/mods/public/maps/random/scythian_rivulet.js

@@ -1,7 +1,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap()
+export function* generateMap()
 {
 	const tMainTerrain = "alpine_snow_a";
 	const tTier1Terrain = "snow rough";

binaries/data/mods/public/maps/random/snowflake_searocks.js

@@ -2,7 +2,7 @@ Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	TILE_CENTERED_HEIGHT_MAP = true;
 

binaries/data/mods/public/maps/random/stronghold.js

@@ -3,7 +3,7 @@ Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmgen2");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	setBiome(mapSettings.Biome);
 

binaries/data/mods/public/maps/random/survivalofthefittest.js

@@ -2,7 +2,7 @@ Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	setBiome(mapSettings.Biome);
 

binaries/data/mods/public/maps/random/syria.js

@@ -1,7 +1,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	const tMainDirt = ["desert_dirt_rocks_1", "desert_dirt_cracks"];
 	const tForestFloor1 = "forestfloor_dirty";

binaries/data/mods/public/maps/random/tests/test_Constraint.js

@@ -10,7 +10,7 @@ Engine.GetTemplate = (path) => {
 
 Engine.LoadLibrary("rmgen");
 
-function* GenerateMap()
+export function* generateMap()
 {
 	g_MapSettings = { "Size": 512 };
 	globalThis.g_Map = new RandomMap(0, "blackness");

binaries/data/mods/public/maps/random/tests/test_DiskPlacer.js

@@ -10,7 +10,7 @@ Engine.GetTemplate = (path) => {
 
 Engine.LoadLibrary("rmgen");
 
-function* GenerateMap()
+export function* generateMap()
 {
 	{
 		g_MapSettings = { "Size": 512 };

binaries/data/mods/public/maps/random/tests/test_Generator.js

@@ -15,7 +15,7 @@ RandomMapLogger.prototype.printDirectly = function(string)
 	// print(string);
 };
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	TS_ASSERT_DIFFER(mapSettings.Seed, undefined);
 	// Phew... that assertion took a while. ;) Let's update the progress bar.

binaries/data/mods/public/maps/random/tests/test_LayeredPainter.js

@@ -10,7 +10,7 @@ Engine.GetTemplate = (path) => {
 
 Engine.LoadLibrary("rmgen");
 
-function* GenerateMap()
+export function* generateMap()
 {
 	g_MapSettings = { "Size": 512 };
 	globalThis.g_Map = new RandomMap(0, "blackness");

binaries/data/mods/public/maps/random/tests/test_RecoverableError.js

@@ -1,4 +1,4 @@
-function* GenerateMap()
+export function* generateMap()
 {
 	try
 	{

binaries/data/mods/public/maps/random/tests/test_RectPlacer.js

@@ -10,7 +10,7 @@ Engine.GetTemplate = (path) => {
 
 Engine.LoadLibrary("rmgen");
 
-function* GenerateMap()
+export function* generateMap()
 {
 	g_MapSettings = { "Size": 512 };
 	globalThis.g_Map = new RandomMap(0, "blackness");

binaries/data/mods/public/maps/random/tests/test_SmoothingPainter.js

@@ -10,7 +10,7 @@ Engine.GetTemplate = (path) => {
 
 Engine.LoadLibrary("rmgen");
 
-function* GenerateMap()
+export function* generateMap()
 {
 	g_MapSettings = { "Size": 512 };
 

binaries/data/mods/public/maps/random/tests/test_TileClass.js

@@ -10,7 +10,7 @@ Engine.GetTemplate = (path) => {
 
 Engine.LoadLibrary("rmgen");
 
-function* GenerateMap()
+export function* generateMap()
 {
 	g_MapSettings = { "Size": 512 };
 	globalThis.g_Map = new RandomMap(0, "blackness");

binaries/data/mods/public/maps/random/the_nile.js

@@ -1,7 +1,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap()
+export function* generateMap()
 {
 	const tPrimary = "desert_sand_dunes_100";
 	const tCity = "desert_city_tile";

binaries/data/mods/public/maps/random/unknown.js

@@ -2,7 +2,7 @@ Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmbiome");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	TILE_CENTERED_HEIGHT_MAP = true;
 

binaries/data/mods/public/maps/random/volcanic_lands.js

@@ -1,7 +1,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	const tGrass = ["cliff volcanic light", "ocean_rock_a", "ocean_rock_b"];
 	const tGrassA = "cliff volcanic light";

binaries/data/mods/public/maps/random/wall_demo.js

@@ -1,7 +1,7 @@
 Engine.LoadLibrary("rmgen");
 Engine.LoadLibrary("rmgen-common");
 
-function* GenerateMap()
+export function* generateMap()
 {
 	globalThis.g_Map = new RandomMap(0, "grass1");
 

binaries/data/mods/public/maps/random/wild_lake.js

@@ -3,7 +3,7 @@ Engine.LoadLibrary("rmgen-common");
 Engine.LoadLibrary("rmbiome");
 Engine.LoadLibrary("heightmap");
 
-function* GenerateMap(mapSettings)
+export function* generateMap(mapSettings)
 {
 	globalThis.g_Map = new RandomMap(0, "whiteness");
 

source/graphics/MapGenerator.cpp

@@ -33,6 +33,7 @@
 #include "ps/TemplateLoader.h"
 #include "scriptinterface/FunctionWrapper.h"
 #include "scriptinterface/JSON.h"
+#include "scriptinterface/ModuleLoader.h"
 #include "scriptinterface/Object.h"
 #include "scriptinterface/ScriptContext.h"
 #include "scriptinterface/ScriptConversions.h"
@@ -46,7 +47,7 @@
 
 namespace
 {
-constexpr const char* GENERATOR_NAME{"GenerateMap"};
+constexpr const char* GENERATOR_NAME{"generateMap"};
 
 bool MapGenerationInterruptCallback(JSContext* cx);
 
@@ -376,14 +377,34 @@ Script::StructuredClone RunMapGenerationScript(const StopToken stopToken, std::a
 
 	// Load RMS
 	LOGMESSAGE("Loading RMS '%s'", script.string8());
-	if (!scriptInterface.LoadGlobalScriptFile(script))
+	auto compileResult = scriptInterface.GetModuleLoader().LoadModule(rq, script);
+	scriptInterface.GetContext().RunJobs();
+	auto& future = *compileResult.begin();
+	if (!future.IsDone())
+		throw std::runtime_error{fmt::format("Loading module {:?} takes too long.", script.string8())};
+
+	JS::RootedObject nsAsObject{rq.cx, future.Get()};
+
 	{
-		LOGERROR("RunMapGenerationScript: Failed to load RMS '%s'", script.string8());
-		return nullptr;
+		bool hasGenerator;
+		if (!JS_HasProperty(rq.cx, nsAsObject, GENERATOR_NAME, &hasGenerator))
+		{
+			LOGERROR("RunMapGenerationScript: failed to search `%s` in the module-namespace.",
+				GENERATOR_NAME);
+			return nullptr;
+		}
+
+		if (!hasGenerator)
+		{
+			throw std::runtime_error{fmt::format(
+				"The map generation script {:?} didn't export a {:?}.", script.string8(),
+				GENERATOR_NAME)};
+		}
 	}
 
 	LOGMESSAGE("Run RMS generator");
-	JS::RootedValue map{rq.cx, ScriptFunction::RunGenerator(rq, global, GENERATOR_NAME, settingsVal,
+	JS::RootedValue ns{rq.cx, JS::ObjectValue(*nsAsObject)};
+	JS::RootedValue map{rq.cx, ScriptFunction::RunGenerator(rq, ns, GENERATOR_NAME, settingsVal,
 		[&](const JS::HandleValue value)
 		{
 			// When the task is started, `progress` is only mutated by this thread.

source/graphics/MapGenerator.h

@@ -26,6 +26,8 @@
 #include <atomic>
 #include <string>
 
+constexpr std::wstring_view RANDOM_MAP_PREFIX{L"maps/random/"};
+
 /**
  * Generate the map. This does take a long time.
  *

source/graphics/MapReader.cpp

@@ -1359,11 +1359,17 @@ int CMapReader::StartMapGeneration(const CStrW& scriptFile)
 		{
 			PROFILE2("Map Generation");
 
-			const CStrW scriptPath{scriptFile.empty() ? L"" : L"maps/random/" + scriptFile};
+			const VfsPath scriptPath{scriptFile.empty() ? L"" :
+				static_cast<std::wstring>(RANDOM_MAP_PREFIX) + scriptFile};
 
 			const std::shared_ptr<ScriptContext> mapgenContext{ScriptContext::CreateContext(
 				MAP_GENERATION_CONTEXT_SIZE)};
-			ScriptInterface mapgenInterface{"Engine", "MapGenerator", mapgenContext};
+
+			ScriptInterface mapgenInterface{"Engine", "MapGenerator", mapgenContext,
+				[](const VfsPath& path){
+					// Only allow to load modules inside the maps folder.
+					return path.string().find(RANDOM_MAP_PREFIX) == 0;
+				}};
 
 			return RunMapGenerationScript(stopToken, progress, mapgenInterface, scriptPath, settings);
 		});

source/graphics/tests/test_MapGenerator.h

@@ -1,4 +1,4 @@
-/* Copyright (C) 2024 Wildfire Games.
+/* Copyright (C) 2025 Wildfire Games.
  * This file is part of 0 A.D.
  *
  * 0 A.D. is free software: you can redistribute it and/or modify
@@ -53,7 +53,10 @@ public:
 		for (const VfsPath& path : paths)
 		{
 			TestLogger logger;
-			ScriptInterface scriptInterface("Engine", "MapGenerator", g_ScriptContext);
+			ScriptInterface scriptInterface{"Engine", "MapGenerator", g_ScriptContext,
+				[](const VfsPath& path){
+					return path.string().find(RANDOM_MAP_PREFIX) == 0;
+				}};
 			ScriptTestSetup(scriptInterface);
 
 			std::atomic<int> progress{1};