scoreboard players add @s[scores={dummy_x=..-512}] dummy_x 512

execute unless score @s dummy_x matches ..-256 run function bd:control/warp/warp_to_saved_coords/x/n128
execute if score @s dummy_x matches ..-256 positioned ~-256 ~ ~ run function bd:control/warp/warp_to_saved_coords/x/n128