Merge pull request #54 from limbonaut/demo-show-code
Demo: Display source code when custom task is selected in BehaviorTreeView
This commit is contained in:
Serhii Snitsaruk
GitHub
commit
1aa64f8c5d
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#*
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#* code_edit.gd
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#* =============================================================================
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#* Copyright 2024 Serhii Snitsaruk
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#*
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#* Use of this source code is governed by an MIT-style
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#* license that can be found in the LICENSE file or at
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#* https://opensource.org/licenses/MIT.
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#* =============================================================================
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#*
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extends CodeEdit
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const RESERVED_WORDS := [
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# Control flow.
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"break",
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"continue",
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"elif",
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"else",
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"for",
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"if",
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"match",
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"pass",
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"return",
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"when",
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"while",
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# Declarations.
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"class",
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"class_name",
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"const",
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"enum",
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"extends",
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"func",
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"namespace",
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"signal",
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"static",
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"trait",
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"var",
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# Other keywords.
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"await",
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"breakpoint",
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"self",
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"super",
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"yield",
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# Operators.
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"and",
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"as",
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"in",
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"is",
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"not",
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"or",
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# Special values.
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"false",
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"null",
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"true",
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# Constants.
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"INF",
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"NAN",
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"PI",
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"TAU",
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# Functions.
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"assert",
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"preload",
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]
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const TYPE_WORDS := [
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"bool",
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"int",
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"float",
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"void",
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"String",
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"Vector2",
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"Vector2i",
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"Rect2",
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"Rect2i",
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"Vector3",
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"Vector3i",
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"Transform2D",
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"Vector4",
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"Vector4i",
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"Plane",
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"Quaternion",
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"AABB",
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"Basis",
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"Transform3D",
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"Projection",
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"Color",
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"StringName",
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"NodePath",
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"RID",
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"Callable",
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"Signal",
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"Dictionary",
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"Array",
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"PackedByteArray",
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"PackedInt32Array",
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"PackedInt64Array",
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"PackedFloat32Array",
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"PackedFloat64Array",
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"PackedStringArray",
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"PackedVector2Array",
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"PackedVector3Array",
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"PackedColorArray",
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# Other types
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"Status",
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]
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func _ready() -> void:
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var highlighter := CodeHighlighter.new()
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syntax_highlighter = highlighter
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highlighter.number_color = Color.AQUAMARINE
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highlighter.symbol_color = Color.CORNFLOWER_BLUE
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highlighter.function_color = Color.DEEP_SKY_BLUE
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highlighter.member_variable_color = Color.LIGHT_BLUE
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# Engine types
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for c in ClassDB.get_class_list():
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syntax_highlighter.add_keyword_color(c, Color.AQUAMARINE)
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syntax_highlighter.add_color_region("#", "", Color.DIM_GRAY, true)
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syntax_highlighter.add_color_region("@", " ", Color.GOLDENROD)
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syntax_highlighter.add_color_region("\"", "\"", Color.GOLD)
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for keyword in RESERVED_WORDS:
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syntax_highlighter.add_keyword_color(keyword, Color.INDIAN_RED)
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for typeword in TYPE_WORDS:
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syntax_highlighter.add_keyword_color(typeword, Color.AQUAMARINE)
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func set_source_code(source_code: String) -> void:
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# Hide license header
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var idx: int = source_code.find("#*")
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while idx != - 1:
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source_code = source_code.substr(0, idx) + source_code.substr(source_code.findn("\n", idx) + 1)
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idx = source_code.findn("#*", idx)
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text = "" # Workaround
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text = source_code
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@ -1,3 +1,14 @@
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#*
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#* showcase.gd
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#* =============================================================================
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#* Copyright 2024 Serhii Snitsaruk
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#*
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#* Use of this source code is governed by an MIT-style
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#* license that can be found in the LICENSE file or at
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#* https://opensource.org/licenses/MIT.
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#* =============================================================================
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#*
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extends Node2D
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@onready var behavior_tree_view: BehaviorTreeView = %BehaviorTreeView
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@ -10,6 +21,8 @@ extends Node2D
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@onready var begin_tutorial: Button = %BeginTutorial
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@onready var navigation_hint: Label = %NavigationHint
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@onready var scene_title: Label = %SceneTitle
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@onready var code_popup = %CodePopup
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@onready var code_edit = %CodeEdit
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var bt_player: BTPlayer
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var selected_tree_index: int = -1
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@ -17,6 +30,7 @@ var agent_files: Array[String]
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var agents_dir: String
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var is_tutorial: bool = false
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func _ready() -> void:
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agent_selection.get_popup().id_pressed.connect(_on_agent_selection_id_pressed)
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previous.pressed.connect(func(): _on_agent_selection_id_pressed(selected_tree_index - 1))
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@ -116,14 +130,13 @@ func _on_agent_selection_id_pressed(id: int) -> void:
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# Treat filename as a title
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agent_selection.text = agent_selection.text.trim_suffix(".tres")
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previous.disabled = id == 0
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next.disabled = id == (agent_files.size()-1)
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next.disabled = id == (agent_files.size() - 1)
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func _on_switch_to_game_pressed() -> void:
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get_tree().change_scene_to_file("res://demo/scenes/game.tscn")
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func _on_minimize_description_button_down() -> void:
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description.visible = not description.visible
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minimize_description.text = "-" if description.visible else "+"
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@ -132,3 +145,10 @@ func _on_minimize_description_button_down() -> void:
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func _on_tutorial_pressed() -> void:
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is_tutorial = not is_tutorial
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_initialize()
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func _on_behavior_tree_view_task_selected(_type_name: String, p_script_path: String) -> void:
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if not p_script_path.is_empty():
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var sc: Script = load(p_script_path)
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code_edit.set_source_code(sc.source_code)
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code_popup.popup.call_deferred()
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@ -1,4 +1,4 @@
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[gd_scene load_steps=15 format=3 uid="uid://b3ae14mc2ty3y"]
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[gd_scene load_steps=16 format=3 uid="uid://b3ae14mc2ty3y"]
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[ext_resource type="Script" path="res://demo/scenes/showcase.gd" id="1_l12ql"]
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[ext_resource type="Theme" uid="uid://boqtjf88xcpu4" path="res://demo/assets/ui.theme" id="2_3d7dj"]
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@ -10,6 +10,7 @@
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[ext_resource type="Texture2D" uid="uid://bjakugmqbbtw7" path="res://demo/assets/arrow_right.png" id="7_5do2y"]
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[ext_resource type="PackedScene" uid="uid://bsig1usigbbuy" path="res://demo/scenes/base/arena.tscn" id="7_42nq6"]
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[ext_resource type="PackedScene" uid="uid://c5fhe3tulhlco" path="res://demo/props/dummy.tscn" id="8_apshw"]
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[ext_resource type="Script" path="res://demo/scenes/base/code_edit.gd" id="9_txke7"]
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[sub_resource type="LabelSettings" id="LabelSettings_rdr7a"]
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font = ExtResource("3_7vli5")
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@ -242,6 +243,27 @@ bbcode_enabled = true
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text = "[b]Behavior Trees[/b] are composed of tasks that represent specific actions or decision-making rules. Tasks can be broadly categorized into two main types: control tasks and leaf tasks. Control tasks determine the execution flow within the tree. They include Sequence, Selector, and Invert. Leaf tasks represent specific actions to perform, like moving or attacking, or conditions that need to be checked. The BTTask class provides the foundation for various building blocks of the Behavior Trees. BT tasks can share data with the help of the Blackboard."
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fit_content = true
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[node name="CodePopup" type="PopupPanel" parent="UI Layer/Control"]
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unique_name_in_owner = true
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position = Vector2i(135, 60)
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size = Vector2i(1024, 708)
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visible = true
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[node name="CodeEdit" type="CodeEdit" parent="UI Layer/Control/CodePopup"]
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unique_name_in_owner = true
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custom_minimum_size = Vector2(800, 700)
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anchors_preset = 15
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anchor_right = 1.0
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anchor_bottom = 1.0
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offset_left = 4.0
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offset_top = 4.0
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offset_right = -4.0
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offset_bottom = -4.0
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grow_horizontal = 2
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grow_vertical = 2
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gutters_draw_line_numbers = true
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script = ExtResource("9_txke7")
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[node name="Camera2D" type="Camera2D" parent="."]
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position = Vector2(400, 0)
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zoom = Vector2(0.88, 0.88)
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@ -262,4 +284,5 @@ position = Vector2(1106, 423)
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[connection signal="pressed" from="UI Layer/Control/Toolbar/HBoxContainer/SwitchToGame" to="." method="_on_switch_to_game_pressed"]
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[connection signal="pressed" from="UI Layer/Control/Toolbar/HBoxContainer/BeginTutorial" to="." method="_on_tutorial_pressed"]
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[connection signal="task_selected" from="UI Layer/Control/BehaviorInspector/VBoxContainer/BehaviorTreeView" to="." method="_on_behavior_tree_view_task_selected"]
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[connection signal="button_down" from="UI Layer/Control/PanelContainer/Control/Header/MinimizeDescription" to="." method="_on_minimize_description_button_down"]
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@ -22,4 +22,13 @@
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Minimum delay between two updates (in milliseconds). Set to higher values for a lower CPU load.
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</member>
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</members>
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<signals>
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<signal name="task_selected">
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<param index="0" name="p_type_name" type="String" />
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<param index="1" name="p_script_path" type="String" />
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<description>
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Emitted when a task item is selected in [BehaviorTreeView].
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</description>
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</signal>
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</signals>
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</class>
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@ -34,6 +34,22 @@
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#include <godot_cpp/classes/time.hpp>
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#endif // LIMBOAI_GDEXTENSION
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inline static uint64_t item_get_task_id(TreeItem *p_item) {
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return p_item->get_metadata(0);
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}
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inline static BTTask::Status item_get_task_status(TreeItem *p_item) {
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return VariantCaster<BTTask::Status>::cast(p_item->get_metadata(1));
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}
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inline static String item_get_task_type(TreeItem *p_item) {
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return ((String)p_item->get_metadata(2)).get_slicec('|', 0);
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}
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inline static String item_get_task_script_path(TreeItem *p_item) {
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return ((String)p_item->get_metadata(2)).get_slicec('|', 1);
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}
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void BehaviorTreeView::_draw_running_status(Object *p_obj, Rect2 p_rect) {
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p_rect = p_rect.grow_side(SIDE_LEFT, p_rect.get_position().x);
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theme_cache.sbf_running->draw(tree->get_canvas_item(), p_rect);
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@ -54,15 +70,21 @@ void BehaviorTreeView::_item_collapsed(Object *p_obj) {
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if (!item) {
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return;
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}
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uint64_t id = item->get_metadata(0);
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uint64_t id = item_get_task_id(item);
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bool collapsed = item->is_collapsed();
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if (!collapsed_ids.has(id) && collapsed) {
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collapsed_ids.push_back(item->get_metadata(0));
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collapsed_ids.push_back(item_get_task_id(item));
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} else if (collapsed_ids.has(id) && !collapsed) {
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collapsed_ids.erase(id);
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}
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}
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void BehaviorTreeView::_item_selected() {
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TreeItem *item = tree->get_selected();
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ERR_FAIL_NULL(item);
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emit_signal(LW_NAME(task_selected), item_get_task_type(item), item_get_task_script_path(item));
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}
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double BehaviorTreeView::_get_editor_scale() const {
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if (Engine::get_singleton()->is_editor_hint()) {
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return EDSCALE;
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@ -85,7 +107,7 @@ void BehaviorTreeView::_update_tree(const Ref<BehaviorTreeData> &p_data) {
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// Remember selected.
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uint64_t selected_id = 0;
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if (tree->get_selected()) {
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selected_id = tree->get_selected()->get_metadata(0);
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selected_id = item_get_task_id(tree->get_selected());
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}
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if (last_root_id != 0 && p_data->tasks.size() > 0 && last_root_id == (uint64_t)p_data->tasks[0].id) {
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@ -98,7 +120,7 @@ void BehaviorTreeView::_update_tree(const Ref<BehaviorTreeData> &p_data) {
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ERR_FAIL_COND(idx >= p_data->tasks.size());
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const BTTask::Status current_status = (BTTask::Status)p_data->tasks[idx].status;
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const BTTask::Status last_status = VariantCaster<BTTask::Status>::cast(item->get_metadata(1));
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const BTTask::Status last_status = item_get_task_status(item);
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const bool status_changed = last_status != p_data->tasks[idx].status;
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if (status_changed) {
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@ -166,6 +188,7 @@ void BehaviorTreeView::_update_tree(const Ref<BehaviorTreeData> &p_data) {
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item->set_metadata(0, task_data.id);
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item->set_metadata(1, task_data.status);
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item->set_metadata(2, task_data.type_name + String("|") + task_data.script_path);
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item->set_text(0, task_data.name);
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if (task_data.is_custom_name) {
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@ -262,6 +285,7 @@ void BehaviorTreeView::_notification(int p_what) {
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switch (p_what) {
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case NOTIFICATION_READY: {
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tree->connect(LW_NAME(item_collapsed), callable_mp(this, &BehaviorTreeView::_item_collapsed));
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tree->connect(LW_NAME(item_selected), callable_mp(this, &BehaviorTreeView::_item_selected));
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} break;
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case NOTIFICATION_LAYOUT_DIRECTION_CHANGED:
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case NOTIFICATION_TRANSLATION_CHANGED:
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@ -292,6 +316,8 @@ void BehaviorTreeView::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_update_interval_msec", "p_milliseconds"), &BehaviorTreeView::set_update_interval_msec);
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ClassDB::bind_method(D_METHOD("get_update_interval_msec"), &BehaviorTreeView::get_update_interval_msec);
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ADD_PROPERTY(PropertyInfo(Variant::INT, "update_interval_msec"), "set_update_interval_msec", "get_update_interval_msec");
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ADD_SIGNAL(MethodInfo("task_selected", PropertyInfo(Variant::STRING, "p_type_name"), PropertyInfo(Variant::STRING, "p_script_path")));
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}
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BehaviorTreeView::BehaviorTreeView() {
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@ -61,6 +61,7 @@ private:
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void _draw_failure_status(Object *p_obj, Rect2 p_rect);
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void _draw_fresh(Object *p_obj, Rect2 p_rect) {}
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void _item_collapsed(Object *p_obj);
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void _item_selected();
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double _get_editor_scale() const;
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void _update_tree(const Ref<BehaviorTreeData> &p_data);
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