CCM: Magic Carpet V2

summon falling_block ~ ~1 ~ {Block:log,Time:1,Passengers:[{id:falling_block,Block:redstone_block,Time:1,Passengers:[{id:falling_block,Block:activator_rail,Time:1,Passengers:[{id:commandblock_minecart,Command:"kill @e[type=!Player,tag=ccp_ToP9keC5]"},{id:commandblock_minecart,Command:"kill @e[tag=ccp_ToP9keC5_r]"},{id:commandblock_minecart,Command:"gamerule commandBlockOutput false"},{id:commandblock_minecart,Command:"fill ~2 ~-3 ~-1 ~7 ~-1 ~1 stained_hardened_clay 14 hollow"},{id:commandblock_minecart,Command:"fill ~2 ~-2 ~-1 ~7 ~-2 ~1 stained_glass 4 0 stained_hardened_clay"},{id:commandblock_minecart,Command:"setblock ~1 ~-2 ~ wall_sign 4 0 {Text1:\"{\\\"text\\\":\\\"\\\"}\",Text2:\"{\\\"text\\\":\\\"Destroy\\\",\\\"color\\\":\\\"dark_red\\\",\\\"bold\\\":true}\",Text3:\"{\\\"text\\\":\\\"Machine\\\",\\\"color\\\":\\\"dark_red\\\",\\\"bold\\\":true}\",Text4:\"{\\\"text\\\":\\\"\\\",\\\"clickEvent\\\":{\\\"action\\\":\\\"run_command\\\",\\\"value\\\":\\\"fill ~ ~-1 ~-1 ~6 ~1 ~1 air\\\"}}\"}"},{id:commandblock_minecart,Command:"scoreboard objectives add Sneak stat.sneakTime"},{id:commandblock_minecart,Command:"scoreboard players tag @p add carpet"},{id:commandblock_minecart,Command:"setblock ~6 ~-2 ~0 chain_command_block 5 0 {TrackOutput:0,auto:1,Command:\"execute @a[tag=carpet] ~ ~ ~ effect @s speed 1 0 true\"}"},{id:commandblock_minecart,Command:"setblock ~5 ~-2 ~0 chain_command_block 5 0 {TrackOutput:0,auto:1,Command:\"execute @a[score_Sneak_min=1] ~ ~ ~ scoreboard players set @s Sneak 0\"}"},{id:commandblock_minecart,Command:"setblock ~4 ~-2 ~0 chain_command_block 5 0 {TrackOutput:0,auto:1,Command:\"execute @a[tag=carpet,score_Sneak=0] ~ ~ ~ fill ~-1 ~-1 ~-1 ~1 ~-1 ~1 wool 14 replace air\"}"},{id:commandblock_minecart,Command:"setblock ~3 ~-2 ~0 repeating_command_block 5 0 {TrackOutput:0,auto:1,Command:\"execute @a[tag=carpet] ~ ~ ~ fill ~-3 ~-2 ~-3 ~3 ~1 ~3 air 0 replace wool 14\"}"},{id:commandblock_minecart,Command:"setblock ~ ~ ~1 command_block 0 0 {Command:\"fill ~ ~-3 ~-1 ~ ~ ~ air\"}"},{id:commandblock_minecart,Command:"setblock ~ ~-1 ~1 redstone_block"},{id:commandblock_minecart,Command:"kill @e[type=commandblock_minecart,r=1]"}]}]}]}