scoreboard players add @s[scores={dummy_z=..-8192}] dummy_z 8192

execute unless score @s dummy_z matches ..-4096 run function bd:control/warp/warp_to_saved_coords/z/n2048
execute if score @s dummy_z matches ..-4096 positioned ~ ~ ~-4096 run function bd:control/warp/warp_to_saved_coords/n/p2048