Indi

summon FallingSand ~ ~1 ~ {Block:stone,Time:1,Passengers:[{id:FallingSand,Block:redstone_block,Time:1,Passengers:[{id:FallingSand,Block:activator_rail,Time:1,Passengers:[{id:MinecartCommandBlock,Command:gamerule commandBlockOutput false},{id:MinecartCommandBlock,Command:"fill ~2 ~-3 ~-1 ~16 ~-1 ~2 stonebrick 0 hollow"},{id:MinecartCommandBlock,Command:"fill ~2 ~-2 ~-1 ~16 ~-2 ~2 stained_glass 15 replace stonebrick"},{id:MinecartCommandBlock,Command:"scoreboard objectives add sneak stat.sneakTime"},{id:MinecartCommandBlock,Command:"scoreboard objectives add sand dummy"},{id:MinecartCommandBlock,Command:setblock ~10 ~-2 ~1 chain_command_block 12 replace {auto:1,Command:"scoreboard players set @a[score_sneak_min=1] sneak 0"}},{id:MinecartCommandBlock,Command:setblock ~11 ~-2 ~1 chain_command_block 4 replace {auto:1,Command:"execute @a[score_sneak_min=1] ~ ~ ~ detect ~ ~2 ~ iron_bars -1 effect @p minecraft:levitation 1 255 true"}},{id:MinecartCommandBlock,Command:setblock ~12 ~-2 ~1 chain_command_block 4 replace {auto:1,Command:"effect @a[score_sand_min=1] minecraft:slowness 1 5 true"}},{id:MinecartCommandBlock,Command:setblock ~13 ~-2 ~1 chain_command_block 12 replace {auto:1,Command:"scoreboard players reset @a sand"}},{id:MinecartCommandBlock,Command:setblock ~14 ~-2 ~1 chain_command_block 4 replace {auto:1,Command:"gamemode 0 @a[score_sand=0]"}},{id:MinecartCommandBlock,Command:setblock ~15 ~-2 ~1 chain_command_block 4 replace {auto:1,Command:"execute @a[score_sand_min=1] ~ ~ ~ detect ~ ~ ~ minecraft:stone 6 scoreboard players set @p sand 0"}},{id:MinecartCommandBlock,Command:setblock ~15 ~-2 ~ chain_command_block 3 replace {auto:1,Command:"execute @a[score_sand_min=1] ~ ~ ~ detect ~ ~ ~ minecraft:air 0 scoreboard players set @p sand 0"}},{id:MinecartCommandBlock,Command:setblock ~14 ~-2 ~ chain_command_block 13 replace {auto:1,Command:"scoreboard players set @p sand 1"}},{id:MinecartCommandBlock,Command:setblock ~13 ~-2 ~ chain_command_block 13 replace {auto:1,Command:"scoreboard players set @a[score_sneak_min=1] sneak 0"}},{id:MinecartCommandBlock,Command:setblock ~12 ~-2 ~ chain_command_block 13 replace {auto:1,Command:"gamemode 3 @p"}},{id:MinecartCommandBlock,Command:setblock ~11 ~-2 ~ chain_command_block 5 replace {auto:1,Command:"execute @a[score_sneak_min=1] ~ ~ ~ detect ~ ~-1 ~ sand 1 tp @p ~ ~-1 ~"}},{id:MinecartCommandBlock,Command:setblock ~10 ~-2 ~ chain_command_block 13 replace {auto:1,Command:"scoreboard players set @a[score_sneak_min=1] sneak 0"}},{id:MinecartCommandBlock,Command:setblock ~9 ~-2 ~ chain_command_block 5 replace {auto:1,Command:"execute @a[score_sneak_min=1] ~ ~ ~ detect ~ ~ ~-1 stonebrick 0 effect @p minecraft:levitation 1 254 true"}},{id:MinecartCommandBlock,Command:setblock ~8 ~-2 ~ chain_command_block 13 replace {auto:1,Command:"scoreboard players set @a[score_sneak_min=1] sneak 0"}},{id:MinecartCommandBlock,Command:setblock ~7 ~-2 ~ chain_command_block 5 replace {auto:1,Command:"execute @a[score_sneak_min=1] ~ ~ ~ detect ~ ~ ~1 stonebrick 0 effect @p minecraft:levitation 1 254 true"}},{id:MinecartCommandBlock,Command:setblock ~6 ~-2 ~ chain_command_block 13 replace {auto:1,Command:"scoreboard players set @a[score_sneak_min=1] sneak 0"}},{id:MinecartCommandBlock,Command:setblock ~5 ~-2 ~ chain_command_block 5 replace {auto:1,Command:"execute @a[score_sneak_min=1] ~ ~ ~ detect ~-1 ~ ~ stonebrick 0 effect @p minecraft:levitation 1 254 true"}},{id:MinecartCommandBlock,Command:setblock ~4 ~-2 ~ chain_command_block 13 replace {auto:1,Command:"scoreboard players set @a[score_sneak_min=1] sneak 0"}},{id:MinecartCommandBlock,Command:setblock ~3 ~-2 ~ repeating_command_block 5 replace {auto:1,Command:"execute @a[score_sneak_min=1] ~ ~ ~ detect ~1 ~ ~ stonebrick 0 effect @p minecraft:levitation 1 254 true"}},{id:MinecartCommandBlock,Command:setblock ~ ~ ~1 command_block 0 replace {Command:fill ~ ~-3 ~-1 ~ ~ ~ air}},{id:MinecartCommandBlock,Command:setblock ~ ~-1 ~1 redstone_block},{id:MinecartCommandBlock,Command:kill @e[type=MinecartCommandBlock,r=1]}]}]}]}