Added a new WorldGeneratorSettings resource which can store and load in world generator related classes from folders.

game/addons/world_generator/plugin.gd

@@ -1,6 +1,8 @@
 tool
 extends EditorPlugin
 
+var SWorldGeneratorSettings = preload("res://addons/world_generator/resources/world_generator_settings.gd")
+
 var SWorldGenBaseResource = preload("res://addons/world_generator/resources/world_gen_base_resource.gd")
 var SWorldGenWorld = preload("res://addons/world_generator/resources/world_gen_world.gd")
 var SContinent = preload("res://addons/world_generator/resources/continent.gd")
@@ -13,6 +15,8 @@ var editor_scene = null
 var tool_button : ToolButton = null
 
 func _enter_tree():
+	add_custom_type("WorldGeneratorSettings", "Resource", SWorldGeneratorSettings, null)
+	
 	add_custom_type("WorldGenBaseResource", "Resource", SWorldGenBaseResource, null)
 	#Don't change the base to "WorldGenBaseResource" else it will complain about a non-existant class
 	#Also it works perfectly like this
@@ -27,6 +31,8 @@ func _enter_tree():
 	tool_button.hide()
 
 func _exit_tree():
+	remove_custom_type("WorldGeneratorSettings")
+	
 	remove_custom_type("WorldGenBaseResource")
 	remove_custom_type("WorldGenWorld")
 	remove_custom_type("Continent")

game/addons/world_generator/resources/world_generator_settings.gd

@@ -0,0 +1,88 @@
+tool
+extends Resource
+class_name WorldGeneratorSettings
+
+export(PoolStringArray) var continent_class_folders : PoolStringArray
+export(PoolStringArray) var zone_class_folders : PoolStringArray
+export(PoolStringArray) var subzone_class_folders : PoolStringArray
+
+enum WorldGeneratorScriptType {
+	CONTINENT = 0,
+	ZONE = 1,
+	SUBZONE = 2,
+};
+
+func evaluate_scripts(script_type : int, tree : Tree) -> void:
+	if (script_type == WorldGeneratorScriptType.CONTINENT):
+		evaluate_continent_scripts(tree)
+	elif (script_type == WorldGeneratorScriptType.ZONE):
+		evaluate_zone_scripts(tree)
+	elif (script_type == WorldGeneratorScriptType.SUBZONE):
+		evaluate_subzone_scripts(tree)
+
+func evaluate_continent_scripts(tree : Tree) -> void:
+	tree.clear()
+	
+	var root : TreeItem = tree.create_item()
+	root.set_text(0, "Continent")
+	root.set_meta("class_name", "Continent")
+	
+	for s in continent_class_folders:
+		evaluate_folder(s, tree, root)
+		
+	root.select(0)
+
+func evaluate_zone_scripts(tree : Tree) -> void:
+	tree.clear()
+	
+	var root : TreeItem = tree.create_item()
+	root.set_text(0, "Zone")
+	root.set_meta("class_name", "Zone")
+	
+	for s in zone_class_folders:
+		evaluate_folder(s, tree, root)
+		
+	root.select(0)
+	
+func evaluate_subzone_scripts(tree : Tree) -> void:
+	tree.clear()
+	
+	var root : TreeItem = tree.create_item()
+	root.set_text(0, "SubZone")
+	root.set_meta("class_name", "SubZone")
+	
+	for s in subzone_class_folders:
+		evaluate_folder(s, tree, root)
+		
+	root.select(0)
+
+func evaluate_folder(folder : String, tree : Tree, root : TreeItem) -> void:
+	var ti : TreeItem = null
+	
+	var dir = Directory.new()
+	if dir.open(folder) == OK:
+		dir.list_dir_begin()
+		var file_name = dir.get_next()
+		while file_name != "":
+			if !dir.current_is_dir():
+				#print("Found file: " + file_name)
+				
+				if !ti:
+					var n : String = folder.substr(folder.find_last("/") + 1)
+					
+					if n != "":
+						ti = tree.create_item(root)
+						ti.set_text(0, n)
+					else:
+						ti = root
+				
+				var e : TreeItem = tree.create_item(ti)
+				
+				e.set_text(0, file_name.get_file())
+				e.set_meta("file", folder + "/" + file_name)
+				
+			file_name = dir.get_next()
+	else:
+		print("An error occurred when trying to access the path.")
+
+

game/project.godot

@@ -255,6 +255,11 @@ _global_script_classes=[ {
 "path": "res://addons/world_generator/resources/world_gen_world.gd"
 }, {
 "base": "Resource",
+"class": "WorldGeneratorSettings",
+"language": "GDScript",
+"path": "res://addons/world_generator/resources/world_generator_settings.gd"
+}, {
+"base": "Resource",
 "class": "Zone",
 "language": "GDScript",
 "path": "res://addons/world_generator/resources/zone.gd"
@@ -309,6 +314,7 @@ _global_script_class_icons={
 "UIWindowModule": "",
 "WorldGenBaseResource": "",
 "WorldGenWorld": "",
+"WorldGeneratorSettings": "",
 "Zone": ""
 }
 Node="input/actionbar_5_11"

game/world_generator/continents/test_continent.gd

@@ -0,0 +1,21 @@
+tool
+extends Continent
+
+func get_editor_rect_border_color() -> Color:
+	return Color(0.8, 0.8, 0.8, 1)
+
+func get_editor_rect_color() -> Color:
+	return Color(0.8, 0.8, 0.8, 0.9)
+
+func get_editor_rect_border_size() -> int:
+	return 2
+
+func get_editor_font_color() -> Color:
+	return Color(0, 0, 0, 1)
+
+func get_editor_class() -> String:
+	return "TestContinent"
+
+func get_editor_additional_text() -> String:
+	return "TestContinent"
+	

game/world_generator/subzones/test_subzone.gd

@@ -0,0 +1,20 @@
+tool
+extends SubZone
+
+func get_editor_rect_border_color() -> Color:
+	return Color(0.8, 0.8, 0.8, 1)
+
+func get_editor_rect_color() -> Color:
+	return Color(0.8, 0.8, 0.8, 0.9)
+
+func get_editor_rect_border_size() -> int:
+	return 2
+
+func get_editor_font_color() -> Color:
+	return Color(0, 0, 0, 1)
+
+func get_editor_class() -> String:
+	return "TestSubZone"
+
+func get_editor_additional_text() -> String:
+	return "TestSubZone"

game/world_generator/zones/test_zone.gd

@@ -0,0 +1,20 @@
+tool
+extends Zone
+
+func get_editor_rect_border_color() -> Color:
+	return Color(0.8, 0.8, 0.8, 1)
+
+func get_editor_rect_color() -> Color:
+	return Color(0.8, 0.8, 0.8, 0.9)
+
+func get_editor_rect_border_size() -> int:
+	return 2
+
+func get_editor_font_color() -> Color:
+	return Color(0, 0, 0, 1)
+
+func get_editor_class() -> String:
+	return "TestZone"
+
+func get_editor_additional_text() -> String:
+	return "TestZone"

game/world_generator_settings.tres

@@ -0,0 +1,9 @@
+[gd_resource type="Resource" load_steps=2 format=2]
+
+[ext_resource path="res://addons/world_generator/resources/world_generator_settings.gd" type="Script" id=1]
+
+[resource]
+script = ExtResource( 1 )
+continent_class_folders = PoolStringArray( "res://world_generator/continents/" )
+zone_class_folders = PoolStringArray( "res://world_generator/zones/" )
+subzone_class_folders = PoolStringArray( "res://world_generator/subzones/" )