asd

Net/net_pickable.gd

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+extends MultiplayerSynchronizer
+
+## Networked sync component for a pickable item. Added as a child literally
+## named "NetPickable" (network_manager.gd's authority RPCs already expect
+## this) of every net-synced pickable, replicating its transform and held
+## state. Only the current multiplayer authority (the server while loose, or
+## whichever peer is holding it) actually simulates physics for the item;
+## every other peer freezes their local copy and just follows the synced
+## transform.
+
+## 0 = loose/server-simulated; otherwise the peer id currently holding it.
+## Replicated at spawn and on change so a late joiner sees the current holder.
+var net_held_by: int = 0: set = _set_net_held_by
+
+var _pickable: XRToolsPickable
+
+
+func _ready() -> void:
+	_pickable = get_parent() as XRToolsPickable
+	if not _pickable:
+		push_error("NetPickable must be a child of an XRToolsPickable")
+		return
+	_pickable.picked_up.connect(_on_picked_up)
+	_pickable.dropped.connect(_on_dropped)
+	# Deferred: the pickable root captures its own original_collision_mask/
+	# original_collision_layer via @onready, which runs AFTER this child's
+	# _ready() but BEFORE the root's _ready() body. Calling apply_held_state
+	# synchronously here would freeze/mask the item before that capture runs,
+	# permanently corrupting the "restore on drop" values.
+	apply_held_state.call_deferred()
+
+
+func _set_net_held_by(value: int) -> void:
+	net_held_by = value
+	apply_held_state()
+
+
+## Puts the item in the right physics state for whether this peer currently
+## owns it. Called locally after net_held_by changes, and directly by
+## NetworkManager._set_item_authority right after an authority handoff.
+func apply_held_state() -> void:
+	if not _pickable:
+		return
+	if not NetworkManager.is_online() or is_multiplayer_authority():
+		# We own this item's simulation (offline, loose+server, or currently
+		# holding it): leave physics alone, XRToolsPickable manages the rest.
+		return
+	# Someone else owns it: stop simulating locally, just follow the sync.
+	if _pickable.is_picked_up():
+		_pickable.drop()
+	_pickable.freeze = true
+	_pickable.freeze_mode = RigidBody3D.FREEZE_MODE_KINEMATIC
+	_pickable.collision_mask = 0
+	_pickable.enabled = (net_held_by == 0)
+
+
+## Local hand grab (not a station snap zone, which is server-only): request
+## authority immediately so the throw/drop can be reconciled, but let the grab
+## happen instantly here rather than waiting on the round trip.
+func _on_picked_up(_p) -> void:
+	var by := _pickable.get_picked_up_by()
+	if not (by is XRToolsFunctionPickup):
+		return
+	NetworkManager.request_item_authority.rpc_id(1, _pickable.get_path())
+
+
+func _on_dropped(_p) -> void:
+	# Only forward if we're actually still the authority — a drop caused by
+	# apply_held_state() losing authority (see above) must not re-report.
+	if not is_multiplayer_authority():
+		return
+	NetworkManager.release_item_authority.rpc_id(
+		1, _pickable.get_path(), _pickable.linear_velocity, _pickable.angular_velocity
+	)