Minecraft Small Dungeon Generator (1.9)

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 ~-2 ~8 ~ ~2 coal_block 0 hollow"},{id:MinecartCommandBlock,Command:"fill ~2 ~-2 ~-2 ~8 ~-1 ~2 stained_hardened_clay 15 replace coal_block"},{id:MinecartCommandBlock,Command:setblock ~1 ~-2 ~ wall_sign 4 replace {Text1:"{\\\"text\\\":\\\"Dungeon Spawner\\\",\\\"color\\\":\\\"gold\\\",\\\"clickEvent\\\":{\\\"action\\\":\\\"run_command\\\",\\\"value\\\":\\\"/give @p cookie\\\"},\\\"bold\\\":true}",Text2:"{\\\"text\\\":\\\"Made by\\\",\\\"color\\\":\\\"aqua\\\",\\\"clickEvent\\\":{\\\"action\\\":\\\"run_command\\\",\\\"value\\\":\\\"/tellraw @p [\\\\\\\"\\\\\\\",{\\\\\\\"text\\\\\\\":\\\\\\\"Hey! Don't tell anyone about this.\\\\\\\",\\\\\\\"color\\\\\\\":\\\\\\\"green\\\\\\\"}]\\\"}}",Text3:"{\\\"text\\\":\\\"Jamesthe1\\\",\\\"color\\\":\\\"yellow\\\",\\\"italic\\\":true}"}},{id:MinecartCommandBlock,Command:setblock ~1 ~-1 ~ wall_sign 4 replace {Text1:"{\\\"text\\\":\\\"-[Destroy]-\\\",\\\"color\\\":\\\"red\\\",\\\"bold\\\":true}",Text2:"{\\\"text\\\":\\\"Dungeons will no\\\",\\\"color\\\":\\\"dark_gray\\\"}",Text3:"{\\\"text\\\":\\\"longer generate!\\\",\\\"color\\\":\\\"dark_gray\\\"}",Text4:"{\\\"text\\\":\\\"\\\",\\\"clickEvent\\\":{\\\"action\\\":\\\"run_command\\\",\\\"value\\\":\\\"fill ~ ~-2 ~-2 ~7 ~1 ~2 air\\\"}}"}},{id:MinecartCommandBlock,Command:setblock ~1 ~ ~ wall_sign 4 replace {Text1:"{\\\"text\\\":\\\"-[Toggle]-\\\",\\\"color\\\":\\\"green\\\",\\\"clickEvent\\\":{\\\"action\\\":\\\"run_command\\\",\\\"value\\\":\\\"scoreboard players add @e[type=ArmorStand,name=TogAct,c=1] nqWMWQ_A 1\\\"}}",Text2:"{\\\"text\\\":\\\"Click me to toggle!\\\",\\\"color\\\":\\\"dark_gray\\\",\\\"clickEvent\\\":{\\\"action\\\":\\\"run_command\\\",\\\"value\\\":\\\"execute @e[score_nqWMWQ_A_min=1,score_nqWMWQ_A=1] ~ ~ ~ blockdata ~ ~ ~ {auto:0}\\\"}}",Text3:"{\\\"text\\\":\\\"\\\",\\\"clickEvent\\\":{\\\"action\\\":\\\"run_command\\\",\\\"value\\\":\\\"execute @e[score_nqWMWQ_A_min=2] ~ ~ ~ blockdata ~ ~ ~ {auto:1}\\\"}}",Text4:"{\\\"text\\\":\\\"\\\",\\\"clickEvent\\\":{\\\"action\\\":\\\"run_command\\\",\\\"value\\\":\\\"scoreboard players reset @e[score_nqWMWQ_A_min=2] nqWMWQ_A\\\"}}"}},{id:MinecartCommandBlock,Command:"summon ArmorStand ~3 ~-2 ~-1 {CustomName:TogAct,Marker:1,NoGravity:1,Invisible:1}"},{id:MinecartCommandBlock,Command:"scoreboard objectives add nqWMWQ_A dummy"},{id:MinecartCommandBlock,Command:setblock ~7 ~-1 ~1 chain_command_block 4 replace {auto:1,Command:"/scoreboard players reset @a[score_c_min=3600] c"}},{id:MinecartCommandBlock,Command:setblock ~7 ~-2 ~1 chain_command_block 1 replace {auto:1,Command:"/kill @e[name=d]"}},{id:MinecartCommandBlock,Command:setblock ~6 ~-2 ~1 chain_command_block 5 replace {auto:1,Command:"/execute @e[name=d] ~ ~ ~ setblock ~1 10 ~1 furnace"}},{id:MinecartCommandBlock,Command:setblock ~5 ~-2 ~1 chain_command_block 5 replace {auto:1,Command:"/execute @e[name=d] ~ ~ ~ fill ~10 11 ~8 ~10 13 ~10 iron_bars"}},{id:MinecartCommandBlock,Command:setblock ~4 ~-2 ~1 chain_command_block 5 replace {auto:1,Command:"/execute @e[name=d] ~ ~ ~ fill ~ 10 ~ ~10 15 ~10 stonebrick 0 hollow"}},{id:MinecartCommandBlock,Command:setblock ~3 ~-2 ~1 chain_command_block 5 replace {auto:1,Command:"/execute @p[score_c_min=3600] ~ ~ ~ summon ArmorStand ~ ~ ~ {Invisible:1,CustomName:d}"}},{id:MinecartCommandBlock,Command:setblock ~3 ~-2 ~ chain_command_block 3 replace {auto:1,Command:"/scoreboard players reset @a[score_t_min=2400] t"}},{id:MinecartCommandBlock,Command:setblock ~4 ~-2 ~ chain_command_block 4 replace {auto:1,Command:"/kill @e[name=c]"}},{id:MinecartCommandBlock,Command:setblock ~5 ~-2 ~ chain_command_block 4 replace {auto:1,Command:"/execute @e[name=c] ~ ~ ~ setblock ~ 21 ~ chest 0 replace {Items:[{id:144,Slot:0,Count:1},{id:145,Slot:3,Count:1},{id:30,Slot:11,Count:1},{id:264,Slot:16,Count:3},{id:266,Slot:23,Count:5}],display:{Name:\\\"Buried Chest\\\"}}"}},{id:MinecartCommandBlock,Command:setblock ~6 ~-2 ~ chain_command_block 4 replace {auto:1,Command:"/execute @e[name=c] ~ ~ ~ fill ~-1 20 ~-1 ~1 22 ~1 stonebrick 0 hollow"}},{id:MinecartCommandBlock,Command:setblock ~7 ~-2 ~ chain_command_block 4 replace {auto:1,Command:"/execute @a[score_t_min=2400] ~ ~ ~ spreadplayers ~ ~ 10 100 false @e[name=c] @e[name=d]"}},{id:MinecartCommandBlock,Command:setblock ~7 ~-2 ~-1 chain_command_block 3 replace {auto:1,Command:"/execute @a[score_t_min=2400] ~ ~ ~ summon ArmorStand ~ ~ ~ {Invisible:1,CustomName:d}"}},{id:MinecartCommandBlock,Command:setblock ~6 ~-2 ~-1 chain_command_block 5 replace {auto:1,Command:"/scoreboard players add @r c 1"}},{id:MinecartCommandBlock,Command:setblock ~5 ~-2 ~-1 chain_command_block 5 replace {auto:1,Command:"/scoreboard players add @r t 1"}},{id:MinecartCommandBlock,Command:setblock ~4 ~-2 ~-1 chain_command_block 5 replace {auto:1,Command:"/scoreboard objectives add c dummy"}},{id:MinecartCommandBlock,Command:setblock ~3 ~-2 ~-1 repeating_command_block 5 replace {auto:1,Command:"/scoreboard objectives add t dummy"}},{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]}]}]}]}