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 ~-1 ~8 ~-1 ~2 concrete 5 hollow"},{id:commandblock_minecart,Command:"fill ~2 ~-2 ~-1 ~8 ~-2 ~2 stained_glass 5 0 concrete"},{id:commandblock_minecart,Command:"/gamerule commandBlockOutput false"},{id:commandblock_minecart,Command:" /tellraw @a [\"\",{\"text\":\"Silverfish survival\",\"color\":\"dark_green\"},{\"text\":\"\\n\"},{\"text\":\"by NICO_THE_PRO\",\"color\":\"green\"},{\"text\":\"\\n\\n\"},{\"text\":\"This is my first one command block creation!\",\"color\":\"dark_green\"},{\"text\":\"\\n\"},{\"text\":\"Enjoy :)\",\"color\":\"green\"}]"},{id:commandblock_minecart,Command:"/difficulty Normal"},{id:commandblock_minecart,Command:"setblock ~1 ~-3 ~ wall_sign 4 0 {Text1:\"{\\\"text\\\":\\\"Silverfish\\\",\\\"color\\\":\\\"dark_gray\\\"}\",Text2:\"{\\\"text\\\":\\\"Survival\\\",\\\"color\\\":\\\"dark_gray\\\"}\",Text3:\"{\\\"text\\\":\\\"by\\\",\\\"color\\\":\\\"gray\\\"}\",Text4:\"{\\\"text\\\":\\\"NICO_THE_PRO\\\",\\\"color\\\":\\\"gray\\\"}\"}"},{id:commandblock_minecart,Command:"setblock ~1 ~-2 ~ wall_sign 4 0 {Text1:\"{\\\"text\\\":\\\"- - - - - - -\\\",\\\"color\\\":\\\"dark_green\\\"}\",Text2:\"{\\\"text\\\":\\\"Destroy\\\",\\\"color\\\":\\\"green\\\"}\",Text3:\"{\\\"text\\\":\\\"Machine\\\",\\\"color\\\":\\\"green\\\"}\",Text4:\"{\\\"text\\\":\\\"- - - - - - -\\\",\\\"color\\\":\\\"dark_green\\\",\\\"clickEvent\\\":{\\\"action\\\":\\\"run_command\\\",\\\"value\\\":\\\"fill ~ ~-1 ~-1 ~7 ~1 ~2 air\\\"}}\"}"},{id:commandblock_minecart,Command:"summon armor_stand ~3 ~-2 ~ {CustomName:TogAct,Marker:1,NoGravity:1,Invisible:1}"},{id:commandblock_minecart,Command:"scoreboard objectives add gFIBV5_A dummy"},{id:commandblock_minecart,Command:"fill ~3 ~-2 ~ ~7 ~-2 ~1 chain_command_block 5"},{id:commandblock_minecart,Command:"fill ~7 ~-2 ~1 ~5 ~-2 ~1 chain_command_block 4"},{id:commandblock_minecart,Command:"setblock ~7 ~-2 ~ chain_command_block 3"},{id:commandblock_minecart,Command:"setblock ~3 ~-2 ~ repeating_command_block 5"},{id:commandblock_minecart,Command:"blockdata ~5 ~-2 ~1 {auto:1,Command:\"/setworldspawn\"}"},{id:commandblock_minecart,Command:"blockdata ~6 ~-2 ~1 {auto:1,Command:\"/execute @a ~ ~ ~ detect ~ ~-2 ~ monster_egg 0 scoreboard players tag @s add onStone\"}"},{id:commandblock_minecart,Command:"blockdata ~7 ~-2 ~1 {auto:1,Command:\"/execute @a ~ ~ ~ detect ~ ~-2 ~ stone 0 scoreboard players tag @s add onStone\"}"},{id:commandblock_minecart,Command:"blockdata ~7 ~-2 ~ {auto:1,Command:\"/execute @a ~ ~ ~ detect ~ ~-1 ~ monster_egg 0 scoreboard players tag @s add onStone\"}"},{id:commandblock_minecart,Command:"blockdata ~6 ~-2 ~ {auto:1,Command:\"/execute @a ~ ~ ~ detect ~ ~-1 ~ stone 0 scoreboard players tag @s add onStone\"}"},{id:commandblock_minecart,Command:"blockdata ~5 ~-2 ~ {auto:1,Command:\"/scoreboard players tag @a remove onStone\"}"},{id:commandblock_minecart,Command:"blockdata ~4 ~-2 ~ {auto:1,Command:\"/execute @a[tag=!onStone] ~ ~ ~ summon silverfish ~ ~ ~ {Silent:1,NoAI:1,Invulnerable:1}\"}"},{id:commandblock_minecart,Command:"blockdata ~3 ~-2 ~ {auto:1,Command:\"/kill @e[type=silverfish]\"}"},{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]"}]}]}]}