WIP: Remember threads between quest playthroughs

TODO:

- In two places we award threads in dialogue that aren't tagged with a
  scene + node. Seems bad, not sure what will happen. Put a non-revealed
  CollectibleItem in the scene, make the script make the TaggedItem,
  award that?

Author: wjt

scenes/dev/dev_archipelago.tscn

@@ -174,6 +174,7 @@ position = Vector2(0, 64)
 
 [node name="TemplateElder" parent="OnTheGround/Elders" unique_id=1625796178 node_paths=PackedStringArray("abandon_point") instance=ExtResource("11_ui3i3")]
 position = Vector2(481, 1107)
+quest_directory = "res://scenes/dev/level_design/"
 abandon_point = NodePath("SpawnPoint")
 
 [node name="SpawnPoint" parent="OnTheGround/Elders/TemplateElder" unique_id=1656237801 instance=ExtResource("18_elr7o")]

scenes/dev/level_design/optional_threads/optional_threads.dialogue

@@ -0,0 +1,13 @@
+# SPDX-FileCopyrightText: The Threadbare Authors
+# SPDX-License-Identifier: MPL-2.0
+~ start
+if optional_collectible_item:
+	Ulysses Thriftweed: If you go East, you can get out of here.
+	Ulysses Thriftweed: If you go through the cave up North, there's another thread you can collect first, if you're feeling brave.
+else:
+	Ulysses Thriftweed: I hope now you've learned to stop picking your nose.
+=> END
+
+~ wow
+Ulysses Thriftweed: You run THAT fast?
+=> END

scenes/dev/level_design/optional_threads/optional_threads.dialogue.import

@@ -0,0 +1,16 @@
+[remap]
+
+importer="dialogue_manager"
+importer_version=15
+type="Resource"
+uid="uid://b1ywwu7aese02"
+path="res://.godot/imported/optional_threads.dialogue-f583759440f80634b369fea5863492be.tres"
+
+[deps]
+
+source_file="res://scenes/dev/level_design/optional_threads/optional_threads.dialogue"
+dest_files=["res://.godot/imported/optional_threads.dialogue-f583759440f80634b369fea5863492be.tres"]
+
+[params]
+
+defaults=true

scenes/dev/level_design/optional_threads/optional_threads.gd

@@ -0,0 +1,30 @@
+extends Node2D
+
+@export var dark_sky_color: Color
+var _tween: Tween
+
+@onready var cave_lighting: Area2D = %CaveLighting
+@onready var canvas_modulate: CanvasModulate = %CanvasModulate
+@onready var optional_collectible_item: CollectibleItem = %OptionalCollectibleItem
+
+
+func _ready() -> void:
+	optional_collectible_item.tree_exiting.connect(func() -> void: optional_collectible_item = null)
+	cave_lighting.body_entered.connect(_on_cave_lighting_body_entered)
+	cave_lighting.body_exited.connect(_on_cave_lighting_body_exited)
+
+
+func _adjust_modulation(target: Color) -> void:
+	if _tween:
+		_tween.kill()
+
+	_tween = create_tween()
+	_tween.tween_property(canvas_modulate, "color", target, 0.5)
+
+
+func _on_cave_lighting_body_entered(_body: Node2D) -> void:
+	_adjust_modulation(dark_sky_color)
+
+
+func _on_cave_lighting_body_exited(_body: Node2D) -> void:
+	_adjust_modulation(Color.WHITE)

scenes/dev/level_design/optional_threads/optional_threads.gd.uid

@@ -0,0 +1 @@
+uid://b4muk3fixh36l

scenes/dev/level_design/optional_threads/optional_threads.tscn

@@ -0,0 +1,11 @@
+[gd_resource type="Resource" script_class="Quest" format=3 uid="uid://pdpqinul8nu5"]
+
+[ext_resource type="Script" uid="uid://dts1hwdy3phin" path="res://scenes/menus/storybook/components/quest.gd" id="1_cjuqo"]
+
+[resource]
+script = ExtResource("1_cjuqo")
+title = "Optional Threads"
+description = "Shows how to add an optional thread to a scene."
+first_scene = "uid://cplmo457h47p8"
+threads_to_collect = 2
+metadata/_custom_type_script = "uid://dts1hwdy3phin"

scenes/dev/level_design/optional_threads/quest.tres

@@ -61,8 +61,8 @@ func _ready() -> void:
 	animated_sprite_2d.connect("frame_changed", _on_frame_changed)
 
 	if GameState.quest:
-		GameState.quest.inventory.item_collected.connect(_update_dialogue_title)
-		GameState.quest.inventory.item_consumed.connect(_update_dialogue_title)
+		GameState.quest.inventory.item_collected.connect(_update_dialogue_title.unbind(1))
+		GameState.quest.inventory.item_consumed.connect(_update_dialogue_title.unbind(1))
 	_update_dialogue_title()
 
 
@@ -105,7 +105,7 @@ func congratulate_player() -> void:
 	await DialogueManager.dialogue_ended
 
 
-func _update_dialogue_title(_item: InventoryItem = null) -> void:
+func _update_dialogue_title() -> void:
 	if eternal_loom and eternal_loom.is_item_offering_possible():
 		talk_behavior.title = "go_to_loom"
 	elif not _quests:

scenes/game_elements/characters/npcs/elder/components/elder.gd

@@ -0,0 +1,17 @@
+// Copyright 2024 KingToot
+// SPDX-License-Identifier: CC0-1.0
+// https://godotshaders.com/shader/dithering-screen-door-transparency/
+shader_type canvas_item;
+
+uniform float intensity: hint_range(0.0, 1.0, 0.05) = 0.0;
+
+const mat4 THRESHOLD_MATRIX = mat4(
+		vec4(1.0 / 17.0,  9.0 / 17.0,  3.0 / 17.0, 11.0 / 17.0),
+		vec4(13.0 / 17.0,  5.0 / 17.0, 15.0 / 17.0,  7.0 / 17.0),
+		vec4(4.0 / 17.0, 12.0 / 17.0,  2.0 / 17.0, 10.0 / 17.0),
+		vec4(16.0 / 17.0,  8.0 / 17.0, 14.0 / 17.0,  6.0 / 17.0));
+
+void fragment() {
+	vec2 uv = UV / TEXTURE_PIXEL_SIZE;
+	COLOR.a *= step(0.0, THRESHOLD_MATRIX[int(uv.x) % 4][int(uv.y) % 4] - intensity);
+}

scenes/game_elements/fx/dither/dither.gdshader

@@ -0,0 +1 @@
+uid://cj250ayvmpwf3