First work on dialogic, resized guild, and started implementing portraits.

addons/dialogic/Modules/Style/subsystem_styles.gd

@@ -0,0 +1,175 @@
+extends DialogicSubsystem
+
+## Subsystem that manages loading layouts with specific styles applied.
+
+signal style_changed(info:Dictionary)
+
+
+#region STATE
+####################################################################################################
+
+func clear_game_state(_clear_flag := DialogicGameHandler.ClearFlags.FULL_CLEAR) -> void:
+	pass
+
+
+func load_game_state(load_flag := LoadFlags.FULL_LOAD) -> void:
+	if load_flag == LoadFlags.ONLY_DNODES:
+		return
+	load_style(dialogic.current_state_info.get('style', ''))
+
+#endregion
+
+
+#region MAIN METHODS
+####################################################################################################
+
+## This helper method calls load_style, but with the [parameter state_reload] as true,
+## which is commonly wanted if you expect a game to already be in progress.
+func change_style(style_name := "", is_base_style := true) -> Node:
+	return load_style(style_name, null, is_base_style, true)
+
+
+## Loads a style. Consider using the simpler [method change_style] if you want to change the style while another style is already in use.
+## [br] If [param state_reload] is true, the current state will be loaded into a new layout scenes nodes.
+## That should not be done before calling start() or load() as it would be unnecessary or cause double-loading.
+func load_style(style_name := "", parent: Node = null, is_base_style := true, state_reload := false) -> Node:
+	var style := DialogicUtil.get_style_by_name(style_name)
+
+	var signal_info := {'style':style_name}
+	dialogic.current_state_info['style'] = style_name
+
+	# is_base_style should only be wrong on temporary changes like character styles
+	if is_base_style:
+		dialogic.current_state_info['base_style'] = style_name
+
+	var previous_layout := get_layout_node()
+	if is_instance_valid(previous_layout) and previous_layout.has_meta('style'):
+		signal_info['previous'] = previous_layout.get_meta('style').name
+
+		# If this is the same style and scene, do nothing
+		if previous_layout.get_meta('style') == style:
+			return previous_layout
+
+		# If this has the same scene setup, just apply the new overrides
+		elif previous_layout.get_meta('style') == style.get_inheritance_root():
+			DialogicUtil.apply_scene_export_overrides(previous_layout, style.get_layer_inherited_info("").overrides)
+			var index := 0
+			for layer in previous_layout.get_layers():
+				DialogicUtil.apply_scene_export_overrides(
+					layer,
+					style.get_layer_inherited_info(style.get_layer_id_at_index(index)).overrides)
+				index += 1
+
+			previous_layout.set_meta('style', style)
+			style_changed.emit(signal_info)
+			return
+
+		else:
+			parent = previous_layout.get_parent()
+
+			previous_layout.get_parent().remove_child(previous_layout)
+			previous_layout.queue_free()
+
+	# if this is another style:
+	var new_layout := create_layout(style, parent)
+	if state_reload:
+		# Preserve process_mode on style changes
+		if previous_layout:
+			new_layout.process_mode = previous_layout.process_mode
+
+		new_layout.ready.connect(reload_current_info_into_new_style)
+
+	style_changed.emit(signal_info)
+
+	return new_layout
+
+
+## Method that adds a layout scene with all the necessary layers.
+## The layout scene will be added to the tree root and returned.
+func create_layout(style: DialogicStyle, parent: Node = null) -> DialogicLayoutBase:
+
+	# Load base scene
+	var base_scene: DialogicLayoutBase
+	var base_layer_info := style.get_layer_inherited_info("")
+	if base_layer_info.path.is_empty():
+		base_scene = DialogicUtil.get_default_layout_base().instantiate()
+	else:
+		base_scene = load(base_layer_info.path).instantiate()
+
+	base_scene.name = "DialogicLayout_"+style.name.to_pascal_case()
+
+	# Apply base scene overrides
+	DialogicUtil.apply_scene_export_overrides(base_scene, base_layer_info.overrides)
+
+	# Load layers
+	for layer_id in style.get_layer_inherited_list():
+		var layer := style.get_layer_inherited_info(layer_id)
+
+		if not ResourceLoader.exists(layer.path):
+			continue
+
+		var layer_scene: DialogicLayoutLayer = null
+
+		if ResourceLoader.load_threaded_get_status(layer.path) == ResourceLoader.THREAD_LOAD_LOADED:
+			layer_scene = ResourceLoader.load_threaded_get(layer.path).instantiate()
+		else:
+			layer_scene = load(layer.path).instantiate()
+
+		base_scene.add_layer(layer_scene)
+
+		# Apply layer overrides
+		DialogicUtil.apply_scene_export_overrides(layer_scene, layer.overrides)
+
+	base_scene.set_meta('style', style)
+
+	if parent == null:
+		parent = dialogic.get_parent()
+	parent.call_deferred("add_child", base_scene)
+
+	dialogic.get_tree().set_meta('dialogic_layout_node', base_scene)
+
+	return base_scene
+
+
+## When changing to a different layout scene,
+## we have to load all the info from the current_state_info (basically
+func reload_current_info_into_new_style() -> void:
+	for subsystem in dialogic.get_children():
+		subsystem.load_game_state(LoadFlags.ONLY_DNODES)
+
+
+## Returns the style currently in use
+func get_current_style() -> String:
+	if has_active_layout_node():
+		var style: DialogicStyle = get_layout_node().get_meta('style', null)
+		if style:
+			return style.name
+	return ''
+
+
+func has_active_layout_node() -> bool:
+	return (
+		get_tree().has_meta('dialogic_layout_node')
+		and is_instance_valid(get_tree().get_meta('dialogic_layout_node'))
+		and not get_tree().get_meta('dialogic_layout_node').is_queued_for_deletion()
+	)
+
+
+func get_layout_node() -> DialogicLayoutBase:
+	if has_active_layout_node():
+		return get_tree().get_meta('dialogic_layout_node')
+	return null
+
+
+## Similar to get_tree().get_first_node_in_group('group_name') but filtered to the active layout node subtree
+func get_first_node_in_layout(group_name: String) -> Node:
+	var layout_node := get_layout_node()
+	if null == layout_node:
+		return null
+	var nodes := get_tree().get_nodes_in_group(group_name)
+	for node in nodes:
+		if layout_node.is_ancestor_of(node):
+			return node
+	return null
+
+#endregion