feat: implemented pause menu

project/menus/main_menu.tscn

@@ -6,7 +6,7 @@ script/source = "extends Control
 @onready var next_scene := preload(\"res://maps/testmap.tscn\")
 
 func _on_start_button_pressed() -> void:
-	get_tree().change_scene_to_packed(next_scene)
+	get_tree().change_scene_to_packed.call_deferred(next_scene)
 "
 
 [node name="MainMenu" type="Control"]

project/menus/pause_menu.tscn

@@ -0,0 +1,56 @@
+[gd_scene load_steps=2 format=3 uid="uid://bt054d3ic71rf"]
+
+[sub_resource type="GDScript" id="GDScript_7ng1a"]
+script/source = "extends CenterContainer
+
+var is_open := false
+
+func toggle_open():
+	set_open(!is_open)
+
+func set_open(val: bool):
+	is_open = val
+	visible = is_open
+	get_tree().paused = is_open
+	if is_open:
+		Input.mouse_mode = Input.MOUSE_MODE_VISIBLE
+		mouse_filter = Control.MOUSE_FILTER_IGNORE
+	else:
+		Input.mouse_mode = Input.MOUSE_MODE_CAPTURED
+		mouse_filter = Control.MOUSE_FILTER_PASS
+
+func _enter_tree():
+	set_open(false)
+
+func _unhandled_input(event: InputEvent) -> void:
+	if event.is_action_pressed(\"open_menu\"):
+		set_open(!is_open)
+
+
+func _on_main_menu_pressed() -> void:
+	get_tree().paused = false
+	get_tree().change_scene_to_file.call_deferred(\"res://menus/main_menu.tscn\")
+"
+
+[node name="PauseMenu" type="CenterContainer"]
+process_mode = 3
+anchors_preset = 15
+anchor_right = 1.0
+anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2
+script = SubResource("GDScript_7ng1a")
+
+[node name="VBoxContainer" type="VBoxContainer" parent="."]
+layout_mode = 2
+
+[node name="Resume" type="Button" parent="VBoxContainer"]
+layout_mode = 2
+text = "Resume"
+
+[node name="Main Menu" type="Button" parent="VBoxContainer"]
+layout_mode = 2
+text = "Main Menu"
+
+[connection signal="pressed" from="VBoxContainer/Resume" to="." method="toggle_open"]
+[connection signal="pressed" from="VBoxContainer/Main Menu" to="." method="_on_main_menu_pressed"]