Major clean up and reorganization

- Upgraded to Godot 4
- Just remembered the basic principles are based on a tile editor, and dramatically simplified from there. Derp.
- New state machine and license display add-ons.
- Re-licensed under the GPL because Micropolis' assets aren't under a separate one.

addons/simplelicense/api/License.gd

@@ -0,0 +1,78 @@
+class_name License
+extends Resource
+## Holds AUTO GENERATED License information
+
+## SPDX-License-Identifier or similar to it.  CASE SENSITIVE[br]
+## Like "CC0-1.0"[br]
+## See [url=https://spdx.org/licenses/]SPDX Identifier List[/url]
+var identifier: String = ""
+
+## The License's Name. [br]
+## Like "CC0 1.0 Universal"
+var name: String = ""
+
+## License Terms; The text of a license file
+var terms: String = ""
+
+## Returns a string containing this license's information, formatted to [url=https://spdx.dev/resources/use/]SPDX Standards[/url]
+func to_formatted_string() -> String:
+	return "License: {identifier}\n{terms}".format({
+		'identifier': identifier,
+		'terms': _add_line_padding(terms)
+		})
+
+
+# wouldn't recomend using this, unless you know what your doing
+# but if you do, this loads and parses all licenses (.txt files) in a directory, 
+# plus Godot's built-in Licenses
+static func _load_licenses_in(dir: String):
+	var dict = {}
+	
+	# get game licenses
+	var names = DirAccess.get_files_at(dir)
+	if names.size() == 0:
+		print_verbose("\nSimple License: No License files found in dir\n", dir, "\nif you have no license files there, then this can be ignored\n")
+	for _name in names:
+		var ext = _name.rsplit('.', false, 1)
+		if ext.size() == 0 or ext[-1] != 'txt':
+			continue
+		
+		var l = new()
+		l.identifier = _name.split('.', false, 1)[0]
+		l.name = l.identifier
+		l.terms = FileAccess.open(dir.path_join(_name), FileAccess.READ).get_as_text()
+		dict[l.identifier] = l
+	
+	# get licenses built into the Godot Engine
+	var tmp = Engine.get_license_info()
+	for id in tmp:
+		if dict.has(id):
+			continue
+		
+		var l = new()
+		l.identifier = id
+		l.terms = tmp[id]
+		dict[id] = l
+	
+	return dict
+
+
+# this is for formatting individual lines accoring to SPDX standards
+static func _add_line_padding(combined_lines: String, padding: String = " ") -> String:
+	if combined_lines.is_empty():
+		return combined_lines
+	
+	var lines = combined_lines.split("\n")
+		
+	var s = ""
+	for i in len(lines):
+		if lines[i].is_empty() or lines[i] == "\n":
+			if i+1 < len(lines):
+				s += padding + "." + "\n"
+			else:
+				s += '\n'
+		else:
+			s += padding + lines[i] + "\n"
+	s = s.strip_edges(false)
+	s += '\n'
+	return s

addons/simplelicense/api/LicenseLink.gd

@@ -0,0 +1,178 @@
+class_name LicenseLink
+extends Resource
+
+## Files that are under this license [br]
+## [color=red]WARNING[/color] DO NOT put in any file that Godot Cannot load, via Resource.load() [br]
+## or it will prevent the game from launching. files like .txt .csg etc
+@export var link_files: Array[Resource]
+
+## Directories that are under this license [br]
+## The given file's Parent Directory will be tracked [br]
+## [color=red]WARNING[/color] DO NOT put in any file that Godot Cannot load, via Resource.load()  [br]
+## or it will prevent the game from launching. files like .txt .csg etc
+@export var link_dirs: Array[Resource]
+
+## Files that are under this license [br]
+## Note: These paths are [b]NOT[/b] automatically tracked, [br]
+## you will have to, manually keep these paths up to date 
+@export var link_paths: Array
+
+## Example: Godot_Icon, Custom Font Name, Your Games Name, etc
+@export var componet_name: String = ""
+
+## Gets included in [method to_formatted_string] right after [member componet_name] [br]
+## as part of the "Comment:" Section of the SPDX format
+@export var extra: String = ""
+
+## SPDX-License-Identifier or similar to it.  CASE SENSITIVE[br]
+## Like "CC0-1.0" or more complex entries like [br]
+## "CC0-1.0 or MIT" [br]
+## "CC0-1.0 and MIT" [br]
+## See [url=https://spdx.org/licenses/]SPDX Identifier List[/url]
+@export var license_identifier: String = "" : set = _set_identifier
+
+## who and when was the copyright was created [br]
+## example [br]
+## 2022, John Doe [br]
+## (next entry) [br]
+## 2022-2023, Jim Stirling, Corp xyz [br]
+@export var copyright: Array[String]
+
+var license: License
+
+## Unlike [member license_identifier] this contains [b]ONLY[/b] the identifiers [br]
+var license_identifiers: Array[String]
+
+## Either "Godot Engine" or "Game" [br]
+## This value is AUTO GENERATED [br]
+## [b]DON'T SET THIS VALUE MANUALLY[/b], IT CAN BREAK THINGS
+var component_of: String = ""
+
+
+func _init() -> void:
+	_set_identifier(license_identifier)
+
+
+func _set_identifier(v: String):
+	license_identifier = v
+	
+	var tmp = v.replace(' and ', '!break!').replace(' or ', '!break!').split('!break!', false)
+	for x in tmp:
+		license_identifiers.append(x)
+
+
+func _to_string() -> String:
+	return self.to_formatted_string()
+
+## Returns a string containing this link's information, formatted to [url=https://spdx.dev/resources/use/]SPDX Standards[/url]
+func to_formatted_string(hide_files: bool = false):
+	var _files = ""
+	if not hide_files:
+		for x in link_files:
+			_files += x.resource_path.replace("res://", " ./").strip_edges() + "\n"
+		for x in link_dirs:
+			_files += (
+				x.resource_path.replace("res://", " ./").rsplit("/", false, 1)[0].strip_edges()
+				+ "/*\n"
+			)
+		for x in link_paths:
+			_files += x.replace("res://", " ./").strip_edges() + "\n"
+	_files = _files.strip_edges()
+
+	var _comment = ""
+	if not componet_name.is_empty():
+		_comment += componet_name
+		if not extra.is_empty():
+			_comment += "\n"
+	if not extra.is_empty():
+		_comment += extra
+
+	return "Files:{files}\nComment:{comment}\nCopyright:{copyright}\nLicense:{identifier}\n".format(
+		{
+			"files": _add_line_padding(_files, " "),
+			"comment": _add_line_padding(_comment, " "),
+			"copyright": _add_line_padding("\n".join(copyright), " "),
+			"identifier": _add_line_padding(license_identifier, " "),
+		}
+	)
+
+
+# wouldn't recomend using this, unless you know what your doing
+# but if you do, this loads and parses all links (LicenseLink Resource files) in a directory, 
+# plus Godot's built-in Licenses
+#
+# exclude engine: excludes loading Godot's built-in license information
+# this is for mods, in which the main game will have already shown the Godot Engine's Licensing
+static func _load_links_in(dir: String, exclude_engine: bool = false):
+	var dict = {
+		'array': [],
+		'by_identifier': {},
+		'by_parent': {},
+	}
+	
+	if not DirAccess.dir_exists_absolute(dir):
+		printerr('Simple License: LicenseLinks directory is missing! ', dir)
+		return dict
+	
+	
+	# get Game license links
+	var names = DirAccess.get_files_at(dir)
+	if len(names) == 0:
+		print_verbose("\nSimple License: No LicenseLinks found in dir\n", dir, "\nif you have no LicenseLinks there, then this can be ignored\n")
+	for name in names:
+		name = name.replace('.remap', '')
+		var path = dir.path_join(name)
+		var res = ResourceLoader.load(path)
+		if res is Resource and res.get("copyright") != null:
+			if res.component_of.is_empty():
+				res.component_of = "Game"
+			
+			dict.array.append(res)
+			
+			dict.by_identifier[res.license_identifier] = res
+			
+			if not dict.by_parent.has(res.component_of):
+				dict.by_parent[res.component_of] = {}
+			dict.by_parent[res.component_of][res.license_identifier] = res
+	
+	# Get Engine license links
+	if not exclude_engine:
+		for a in Engine.get_copyright_info():
+			var l = new()
+			l.componet_name = a.name
+			l.component_of = "Godot Engine"
+			l.link_paths = a.parts[0].files
+			
+			l.license_identifier = a.parts[0].license
+			l.copyright.append_array(a.parts[0].copyright)
+			
+			dict.array.append(l)
+			
+			dict.by_identifier[l.license_identifier] = l
+			
+			if not dict.by_parent.has(l.component_of):
+				dict.by_parent[l.component_of] = {}
+			
+			if not dict.by_parent[l.component_of].has(l.license_identifier):
+				dict.by_parent[l.component_of][l.license_identifier] = l
+	
+	return dict
+
+# this is for formatting individual lines accoring to SPDX standards
+static func _add_line_padding(combined_lines: String, padding: String) -> String:
+	if combined_lines.is_empty():
+		return combined_lines
+	
+	var lines = combined_lines.split("\n")
+		
+	var s = ""
+	for i in len(lines):
+		if lines[i].is_empty() or lines[i] == "\n":
+			if i+1 < len(lines):
+				s += padding + "." + "\n"
+			else:
+				s += '\n'
+		else:
+			s += padding + lines[i] + "\n"
+	s = s.strip_edges(false)
+	return s

addons/simplelicense/api/LicenseManager.gd

@@ -0,0 +1,121 @@
+class_name LicenseManager
+extends Node
+
+## loads license information from this directory and the sub-directory "license_links"
+@export var load_dir: String = "res://licenses"
+
+## export license information to this directory and the sub-directory "licenses"
+@export var export_dir: String = "user://"
+
+## This disables loading Godot's built-in license information [br]
+## this is for mods, in which the main game will have already shown the Godot's built-in Licensing
+@export var exclude_engine: bool = false
+
+## contains all loaded [License]s [br]
+## key = identifier [br]
+## value = [License]
+var licenses := {} 
+
+## contains all loaded [LicenseLink]s [br]
+## with searching in mind [br]
+## "array" [] [br]
+## "by_identifier" {} license identifier [br]
+## "by_parent" {} parent component name [br]
+var license_links := {
+	'array': [],
+	'by_identifier': {},
+	'by_parent': {},
+}
+
+
+## Loads license information from [member load_dir] [br]
+func load_license_information():
+	licenses.clear()
+	license_links.array.clear()
+	license_links.by_identifier.clear()
+	license_links.by_parent.clear()
+	
+	if not DirAccess.dir_exists_absolute(load_dir):
+		printerr("Failed to find license directory ", load_dir)
+		return
+	
+	licenses = License._load_licenses_in(load_dir)
+	if licenses.has('Expat') and not licenses.has('MIT'):
+		var l = licenses['Expat'].duplicate() as License
+		l.identifier = 'MIT'
+		licenses['MIT'] = l
+	
+	license_links = LicenseLink._load_links_in(load_dir.path_join('license_links'), exclude_engine)
+
+
+## Returns a single string "file", that is formatted in the SPDX Standard [br]
+## that contains all licensing information, contained in this instance, [br]
+## if only_links, then the returned data will omit the licensing term files
+func get_combined_copyright(only_links: bool = false) -> String:
+	var lines = ""
+	
+	var used_licenses = {}
+	
+	# Links
+	for link in license_links.array:
+		if link is LicenseLink:
+			lines += link.to_formatted_string(link.component_of == 'Godot Engine')
+			lines += '\n'
+			used_licenses.merge(get_all_valid_licenses(link))
+	
+	lines += '\n\n'
+	
+	if only_links:
+		return lines
+	
+	# License Terms
+	var values = used_licenses.values()
+	for i in len(values):
+		if i+1 < len(values):
+			lines += values[i].to_formatted_string() + '\n'
+		else:
+			lines += values[i].to_formatted_string()
+
+	return lines
+
+## Returns all licenses that are "valid"/exist [br]
+## Sometimes license files are missing, or Identifiers are incorrectly spelled, this helps with that.
+func get_all_valid_licenses(link: LicenseLink) -> Dictionary:
+	var d = {}
+	for x in link.license_identifiers:
+		if licenses.has(x):
+			d[x] = licenses[x]
+	return d
+
+## export all license information to [member export_dir] and the sub-directory "licenses"
+func export(directory: String = ""):
+	if directory.is_empty():
+		directory = export_dir
+	
+	var licenses_path = directory.path_join('licenses')
+	if not DirAccess.dir_exists_absolute(licenses_path):
+		DirAccess.make_dir_recursive_absolute(licenses_path)
+	
+	# Export the combined license file
+	var f = FileAccess.open(directory.path_join('COPYRIGHT.txt'), FileAccess.WRITE)
+	if f is FileAccess:
+		f.store_string(self.get_combined_copyright())
+	
+	# Export the slim license file
+	f = FileAccess.open(directory.path_join('COPYRIGHT_SLIM.txt'), FileAccess.WRITE)
+	if f is FileAccess:
+		f.store_string(self.get_combined_copyright(true))
+	
+	
+	# Export the individual license files
+	
+	var used = {}
+	for i in license_links.array.size():
+		var license = license_links.array[i] as LicenseLink
+		var ids = self.get_all_valid_licenses(license)
+		used.merge(ids)
+		
+		for id in ids:
+			var license_path = licenses_path.path_join(id)+'.txt'
+			f = FileAccess.open(license_path, FileAccess.WRITE)
+			f.store_string(licenses[id].to_formatted_string())