Realistic Grappling Hooks (One CMD)

summon falling_block ~ ~1 ~ {Block:stone,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:gamerule commandBlockOutput false},{id:commandblock_minecart,Command:fill ~2 ~-3 ~-2 ~8 ~ ~2 stained_hardened_clay 4 hollow},{id:commandblock_minecart,Command:fill ~2 ~-2 ~-2 ~8 ~-1 ~2 planks 0 0 stained_hardened_clay},{id:commandblock_minecart,Command:/scoreboard objectives add airGrap dummy},{id:commandblock_minecart,Command:"/tellraw @p [\"\",{\"text\":\"[INFO] \",\"color\":\"white\",\"bold\":true},{\"text\":\"Realistic Grappling Hooks!\",\"color\":\"light_purple\",\"bold\":true}]"},{id:commandblock_minecart,Command:"/tellraw @p [\"\",{\"text\":\"This command creation allows you to craft realistic grappling hooks by dropping 3 sticks, 1 string, and 1 tripwire hook into the same block! Once you have a grappling hook, just right click to shoot it onto the edge of a ledge and walk/pull yourself up the wall!\",\"color\":\"green\"}]"},{id:commandblock_minecart,Command:"/tellraw @p [\"\",{\"text\":\"Made by: Cloud Wolf Minecraft (YT)\",\"color\":\"gold\",\"bold\":true}]"},{id:commandblock_minecart,Command:"/tellraw @p [\"\",{\"text\":\"[Click Here to check out my channel for more!]\",\"color\":\"red\",\"bold\":true,\"clickEvent\":{\"action\":\"open_url\",\"value\":\"https://youtube.com/cloudwolfminecraft\"}}]"},{id:commandblock_minecart,Command:fill ~3 ~-2 ~-1 ~7 ~-1 ~1 chain_command_block 5},{id:commandblock_minecart,Command:setblock ~3 ~-1 ~1 chain_command_block 2},{id:commandblock_minecart,Command:fill ~7 ~-1 ~1 ~4 ~-1 ~1 chain_command_block 4},{id:commandblock_minecart,Command:setblock ~7 ~-2 ~1 chain_command_block 1},{id:commandblock_minecart,Command:setblock ~3 ~-2 ~ chain_command_block 3},{id:commandblock_minecart,Command:fill ~7 ~-2 ~ ~4 ~-2 ~ chain_command_block 4},{id:commandblock_minecart,Command:setblock ~7 ~-2 ~-1 chain_command_block 3},{id:commandblock_minecart,Command:setblock ~3 ~-2 ~-1 repeating_command_block 5},{id:commandblock_minecart,Command:blockdata ~4 ~-1 ~ {auto:1,Command:/execute @e[tag=grapHook2] ~ ~ ~ /kill @e[tag=stick,r=2]}},{id:commandblock_minecart,Command:blockdata ~3 ~-1 ~ {auto:1,Command:/execute @e[tag=grapHook2] ~ ~ ~ /kill @e[tag=tripHook,r=2]}},{id:commandblock_minecart,Command:blockdata ~3 ~-1 ~1 {auto:1,Command:/execute @e[tag=grapHook2] ~ ~ ~ /kill @e[tag=string,r=2]}},{id:commandblock_minecart,Command:blockdata ~4 ~-1 ~1 {auto:1,Command:"/execute @e[tag=stick] ~ ~ ~ /execute @e[tag=string,dx=0] ~ ~ ~ /execute @e[tag=tripHook,dx=0] ~ ~ ~ /summon item ~ ~1 ~ {CustomName:\\\"Grappling Hook!\\\",CustomNameVisible:1,Tags:[\\\"grapHook2\\\"],Item:{id:fishing_rod,Count:1b,tag:{grapplinghook:1,display:{Name:\\\"Grappling Hook\\\",Lore:[A hook that lets you ,pull yourself up and over walls!]}}}}"}},{id:commandblock_minecart,Command:blockdata ~5 ~-1 ~1 {auto:1,Command:"/scoreboard players tag @e[type=item] add stick {Item:{id:\\\"minecraft:stick\\\",Count:3b}}"}},{id:commandblock_minecart,Command:blockdata ~6 ~-1 ~1 {auto:1,Command:"/scoreboard players tag @e[type=item] add string {Item:{id:\\\"minecraft:string\\\"}}"}},{id:commandblock_minecart,Command:blockdata ~7 ~-1 ~1 {auto:1,Command:"/scoreboard players tag @e[type=item] add tripHook {Item:{id:\\\"minecraft:tripwire_hook\\\"}}"}},{id:commandblock_minecart,Command:blockdata ~7 ~-2 ~1 {auto:1,Command:/scoreboard players tag @a[tag=grapHook] remove grapHook}},{id:commandblock_minecart,Command:blockdata ~6 ~-2 ~1 {auto:1,Command:/execute @e[tag=grapHook1] ~ ~2.5 ~ /effect @a[tag=grapHook,dx=1,dz=1,dy=1] levitation 0 0 true}},{id:commandblock_minecart,Command:blockdata ~5 ~-2 ~1 {auto:1,Command:/effect @a[tag=grapHook,score_airGrap_min=4] levitation 0 0 true}},{id:commandblock_minecart,Command:blockdata ~4 ~-2 ~1 {auto:1,Command:/execute @a[tag=grapHook] ~ ~ ~ detect ~ ~ ~-.35 air 0 /scoreboard players add @a[tag=grapHook,r=0] airGrap 1}},{id:commandblock_minecart,Command:blockdata ~3 ~-2 ~1 {auto:1,Command:/execute @a[tag=grapHook] ~ ~ ~ detect ~ ~ ~.35 air 0 /scoreboard players add @a[tag=grapHook,r=0] airGrap 1}},{id:commandblock_minecart,Command:blockdata ~3 ~-2 ~ {auto:1,Command:/execute @a[tag=grapHook] ~ ~ ~ detect ~-.35 ~ ~ air 0 /scoreboard players add @a[tag=grapHook,r=0] airGrap 1}},{id:commandblock_minecart,Command:blockdata ~4 ~-2 ~ {auto:1,Command:/execute @a[tag=grapHook] ~ ~ ~ detect ~.35 ~ ~ air 0 /scoreboard players add @a[tag=grapHook,r=0] airGrap 1}},{id:commandblock_minecart,Command:blockdata ~5 ~-2 ~ {auto:1,Command:/scoreboard players set @a grapTime 60}},{id:commandblock_minecart,Command:blockdata ~6 ~-2 ~ {auto:1,Command:/scoreboard players set @a[tag=grapHook] airGrap 0}},{id:commandblock_minecart,Command:blockdata ~7 ~-2 ~ {auto:1,Command:/execute @e[tag=grapHook1] ~ ~-.5 ~ /effect @a[tag=grapHook,dx=0,dz=-1,dy=-20] levitation 1 1 true}},{id:commandblock_minecart,Command:blockdata ~7 ~-2 ~-1 {auto:1,Command:/execute @e[tag=grapHook1] ~ ~-.5 ~ /effect @a[tag=grapHook,dx=0,dz=1,dy=-20] levitation 1 1 true}},{id:commandblock_minecart,Command:blockdata ~6 ~-2 ~-1 {auto:1,Command:/execute @e[tag=grapHook1] ~ ~-.5 ~ /effect @a[tag=grapHook,dx=-1,dz=0,dy=-20] levitation 1 1 true}},{id:commandblock_minecart,Command:blockdata ~5 ~-2 ~-1 {auto:1,Command:/execute @e[tag=grapHook1] ~ ~-.5 ~ /effect @a[tag=grapHook,dx=1,dz=0,dy=-20] levitation 1 1 true}},{id:commandblock_minecart,Command:blockdata ~4 ~-2 ~-1 {auto:1,Command:/execute @a[tag=grapHook] ~ ~ ~ /scoreboard players tag @e[name=unknown,r=2] add grapHook1}},{id:commandblock_minecart,Command:blockdata ~3 ~-2 ~-1 {auto:1,Command:"/scoreboard players tag @a add grapHook {SelectedItem:{tag:{grapplinghook:1,display:{Name:\\\"Grappling Hook\\\"}}}}"}},{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]}]}]}]}