Add DespawningItem

Prefabs/despawning_item.gd

@@ -0,0 +1,43 @@
+extends Node
+class_name DespawningItem
+
+@export var time_to_despawn: float = 8
+
+# The minimum speed required to reset despawn timer.
+@export var minimum_speed_square: float = 0.1
+
+
+@onready var _pickable: XRToolsPickable = get_parent() as XRToolsPickable
+@onready var _rigid: RigidBody3D = get_parent() as RigidBody3D
+
+
+var _time_left: float = time_to_despawn
+
+func _ready() -> void:
+	if not _pickable:
+			push_error("DespawningItem must be a grand child of an XRToolsPickable.")
+			return
+	if not _rigid:
+			push_error("DespawningItem must be a grand child of an RigidBody3D.")
+			return
+		
+
+func _process(delta: float) -> void:
+	print("SpeedSquare: ", _rigid.linear_velocity.length_squared())
+	# if we're held or moving, reset timer and return
+	if  _pickable.get_picked_up_by() or _rigid.linear_velocity.length_squared() > pow(minimum_speed_square,2):
+		_time_left = time_to_despawn
+		get_parent().visible = true
+		print("DespawningItem resetting timer: ", get_parent())
+		return
+	
+
+	# Count down to zero and despawn
+	_time_left -= delta
+	if _time_left <= 0:
+		print("DespawningItem despawning!" , get_parent())
+		NetworkManager.despawn_item(get_parent())
+
+	# Make item blink in and out before despawning
+	if _time_left < time_to_despawn / 2:
+		get_parent().visible = int(_time_left * 5.0) %2 == 0