Add BuildModeController that deletes loose items on enter BuildMode

Prefabs/build_mode_controller.gd

@@ -0,0 +1,38 @@
+extends Node
+class_name BuildModeController
+
+# Called when the node enters the scene tree for the first time.
+func _ready() -> void:
+	Signals.game_state_changed.connect(_on_game_state_changed)
+
+
+func _on_game_state_changed(new_state: GameManager.GameState) -> void:
+	print("BuildModeController: game_state_changed to %s" % new_state)
+	if new_state == GameManager.GameState.BUILDING:
+		despawn_unheld_pickables()
+
+
+# Despawn all food_items unless it's in a "persistent_inventory" snap_zone
+func despawn_unheld_pickables():
+	var root = get_tree().get_root()
+	var pickables: Array[Node] = []
+	_collect_pickables(root, pickables)
+	for pickable in pickables:
+		if not Helper.find_food_item(pickable):
+			continue
+		var held_by: Node = pickable.get_picked_up_by()
+		if not held_by:
+			NetworkManager.despawn_item(pickable)
+			continue
+		if not held_by.is_in_group("persistent_inventory"):
+			held_by.get_parent().print_tree_pretty()
+			print("BuildModeController despawn_unheld_pickables held_by: %s, pickable: %s " % [held_by, pickable])
+			NetworkManager.despawn_item(pickable)
+			
+
+func _collect_pickables(node: Node, out_array: Array) -> void:
+	if node is XRToolsPickable:
+		out_array.append(node)
+	for child in node.get_children():
+		if child is Node:
+			_collect_pickables(child, out_array)

Prefabs/build_mode_controller.gd.uid

@@ -0,0 +1 @@
+uid://bsdpd18i1i17s

Scenes/test_small.tscn

@@ -8,6 +8,7 @@
 [ext_resource type="PackedScene" uid="uid://efaec6ymgabo" path="res://stations/Counter.tscn" id="7_jnxsa"]
 [ext_resource type="PackedScene" uid="uid://drwuhqb3pjtiy" path="res://items/potato.tscn" id="8_1qeqw"]
 [ext_resource type="PackedScene" uid="uid://dlw5geheupgpt" path="res://stations/hatch.tscn" id="8_atgwk"]
+[ext_resource type="Script" uid="uid://bsdpd18i1i17s" path="res://prefabs/build_mode_controller.gd" id="9_atgwk"]
 
 [sub_resource type="Environment" id="Environment_bvwq1"]
 background_mode = 2
@@ -99,3 +100,6 @@ transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, -1.2, 0, 0)
 
 [node name="Hatch2" parent="." unique_id=1755144529 instance=ExtResource("8_atgwk")]
 transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0.6, 0, 0)
+
+[node name="BuildModeController" type="Node" parent="." unique_id=1876729190]
+script = ExtResource("9_atgwk")

Stations/hatch.tscn

@@ -18,7 +18,7 @@ albedo_color = Color(0.38, 0.35162666, 0.3268, 1)
 [sub_resource type="BoxShape3D" id="BoxShape3D_vlqg6"]
 size = Vector3(0.6, 0.34027833, 0.6)
 
-[node name="Hatch" type="StaticBody3D" unique_id=1341321603]
+[node name="Hatch" type="StaticBody3D" unique_id=1341321603 groups=["persistent_inventory"]]
 
 [node name="XRToolsSnapZone" type="Area3D" parent="." unique_id=2093161322 groups=["station"]]
 transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1.2495586, 0)

global/GameManager.gd

@@ -17,6 +17,7 @@ static func _set_game_state(value: GameState):
 	game_state = value
 	Signals.game_state_changed.emit(value)
 
+
 static func _restart():
 	print("restart Game")
 	game_state = GameState.RUNNING
@@ -45,6 +46,3 @@ static  func game_over():
 	print("Game Over")
 	game_state = GameState.GAME_OVER
 	Signals.game_over.emit()
-	
-	
-	

project.godot

@@ -48,6 +48,7 @@ platalbe_item="Meals, sides, augments for meals"
 station="Hobs, Counters ..."
 table="all nodes with table script"
 chopping_tool="A pickable body that chops"
+persistent_inventory="A station that keeps it's held items in build mode"
 
 [input]