Add item placement marker

scripts/item_holder.gd

@@ -75,6 +75,12 @@ func take_from_player(player) -> bool:
 	emit_signal("item_changed", item_in_hold)
 	return true
 
+func on_player_focus_enter():
+	$item_placement_marker/Item_Placement_Marker.material_override = preload("res://assets/item_placement_marker/Highlight.material")
+
+func on_player_focus_exit():
+	$item_placement_marker/Item_Placement_Marker.material_override = null
+
 func on_player_interact(player) -> bool:
 	if has_item() and player.has_item():
 		return swap_with_player(player)

scripts/player/player.gd

@@ -139,3 +139,17 @@ func start_playing_rover_game():
 
 func stop_playing_rover_game():
 	state.on_stop_playing_rover_game()
+
+func _on_TriggerVolume_area_entered(area):
+	var owner = area
+	if owner.has_meta("owner"):
+		owner = area.get_meta("owner")
+	if owner.has_method("on_player_focus_enter"):
+		owner.on_player_focus_enter()
+
+func _on_TriggerVolume_area_exited(area):
+	var owner = area
+	if owner.has_meta("owner"):
+		owner = area.get_meta("owner")
+	if owner.has_method("on_player_focus_exit"):
+		owner.on_player_focus_exit()