Created Test Script Editor

Starting work on allowing for GDScript to code various functionality in
Overlay outside of normal backend code.  Such as event handling, sending
messages, alerts, etc, etc.

UI/Controls/script_editor.gd

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+extends PanelContainer
+
+@onready var run_script: Button = %RunScript
+@onready var code_editor: TextEdit = %CodeEditor
+
+
+# Called when the node enters the scene tree for the first time.
+func _ready() -> void:
+	%CodeEditor.text = "extends OverlayPlugin\n\nfunc run() -> void:\n\tpass"
+	run_script.pressed.connect(_handle_run_script)
+
+func _handle_run_script() -> void:
+	var script = GDScript.new()
+	script.source_code = %CodeEditor.text
+	var error := script.reload()
+	if error != OK:
+		print("Failed to parse script!")
+		return
+	var context: Object = script.new()
+	if not context is OverlayPlugin:
+		print("Script doesn't inherit from OverlayPlugin!")
+		if context.has_method(&"queue_free"):
+			context.queue_free()
+		elif context is RefCounted:
+			context = null
+		else:
+			context.free()
+		return
+	context.ready.connect(func() -> void: context.run(); context.queue_free())
+	add_child(context)

UI/Controls/script_editor.gd.uid

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+uid://d1t6dwda2ccbc

UI/Controls/script_editor.tscn

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+[gd_scene format=3 uid="uid://cetlbpyakk1vo"]
+
+[ext_resource type="Script" uid="uid://d1t6dwda2ccbc" path="res://UI/Controls/script_editor.gd" id="1_2d8la"]
+[ext_resource type="Theme" uid="uid://bh8pw2ic1krk3" path="res://UI/assets/editor_theme.tres" id="2_b6d4x"]
+[ext_resource type="CodeHighlighter" uid="uid://cana6jwydsw5b" path="res://UI/assets/gdscript_highlighter4.tres" id="2_tuoer"]
+
+[node name="ScriptEditor" type="PanelContainer" unique_id=1486890629]
+anchors_preset = 15
+anchor_right = 1.0
+anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2
+script = ExtResource("1_2d8la")
+
+[node name="MarginContainer" type="MarginContainer" parent="." unique_id=357949885]
+layout_mode = 2
+theme_override_constants/margin_left = 10
+theme_override_constants/margin_top = 10
+theme_override_constants/margin_right = 10
+theme_override_constants/margin_bottom = 10
+
+[node name="VBoxContainer" type="VBoxContainer" parent="MarginContainer" unique_id=140758909]
+layout_mode = 2
+
+[node name="HBoxContainer" type="HBoxContainer" parent="MarginContainer/VBoxContainer" unique_id=2023186459]
+layout_mode = 2
+
+[node name="RunScript" type="Button" parent="MarginContainer/VBoxContainer/HBoxContainer" unique_id=356048785]
+unique_name_in_owner = true
+layout_mode = 2
+text = "Run Script"
+
+[node name="CodeEditor" type="CodeEdit" parent="MarginContainer/VBoxContainer" unique_id=1991835537]
+unique_name_in_owner = true
+layout_mode = 2
+size_flags_vertical = 3
+theme = ExtResource("2_b6d4x")
+scroll_smooth = true
+scroll_past_end_of_file = true
+syntax_highlighter = ExtResource("2_tuoer")
+line_folding = true
+gutters_draw_line_numbers = true
+gutters_zero_pad_line_numbers = true
+gutters_draw_fold_gutter = true
+indent_use_spaces = true
+indent_automatic = true
+auto_brace_completion_enabled = true
+auto_brace_completion_highlight_matching = true