1.8

summon FallingSand ~ ~+4 ~ {Time:1,Data:0,TileID:152,Riding:{id:FallingSand,Time:1,Block:minecraft:command_block,TileEntityData:{Command:fill ~ ~1 ~-1 ~ ~-5 ~ air},Riding:{id:FallingSand,Time:1,Data:0,TileID:1,Riding:{id:FallingSand,Time:1,Data:0,TileID:152,Riding:{id:FallingSand,Time:1,Block:minecraft:command_block,TileEntityData:{Command:kill @e[type=MinecartCommandBlock,r=4]},Riding:{id:FallingSand,Time:1,Data:0,TileID:1,Riding:{id:MinecartCommandBlock,Command:setblock ~ ~ ~ air,Riding:{id:MinecartCommandBlock,Command:/kill @e[type=Item,r=4],Riding:{id:MinecartCommandBlock,Command:"setblock ~4 ~-1 ~-3 unpowered_comparator 9 replace {id:Comparator,OutputSignal:1,x:2,y:1,z:0}",Riding:{id:MinecartCommandBlock,Command:"setblock ~7 ~-1 ~-2 unpowered_comparator 1 replace {id:Comparator,OutputSignal:0,x:5,y:1,z:1}",Riding:{id:MinecartCommandBlock,Command:"setblock ~3 ~-2 ~-3 lever 2",Riding:{id:MinecartCommandBlock,Command:"setblock ~3 ~0 ~-3 stone_button 1",Riding:{id:MinecartCommandBlock,Command:"setblock ~9 ~-1 ~-2 redstone_torch 1",Riding:{id:MinecartCommandBlock,Command:buffer,Riding:{id:MinecartCommandBlock,Command:buffer,Riding:{id:MinecartCommandBlock,Command:"setblock ~5 ~-2 ~-3 command_block 1 replace {CustomName:@,Command:/fill ~5 ~1 ~ ~ ~1 ~ redstone_block,id:Control,x:3,y:0,z:0}",Riding:{id:MinecartCommandBlock,Command:"setblock ~6 ~-2 ~-3 command_block 0 replace {CustomName:@,Command:/scoreboard objectives add CreeperZoned dummy,id:Control,x:4,y:0,z:0}",Riding:{id:MinecartCommandBlock,Command:"setblock ~7 ~-2 ~-3 command_block 0 replace {CustomName:@,Command:/scoreboard players set @e[type=Item] IsCreeperZone 1 {Item:{id:minecraft:armor_stand,tag:{display:{Name:CreeperZone}}}},id:Control,x:5,y:0,z:0}",Riding:{id:MinecartCommandBlock,Command:"setblock ~8 ~-2 ~-3 command_block 0 replace {CustomName:@,Command:/kill @e[type=Item,score_IsCreeperZone_min=1],id:Control,x:6,y:0,z:0}",Riding:{id:MinecartCommandBlock,Command:"setblock ~8 ~-2 ~-2 command_block 0 replace {CustomName:@,id:Control,Command:say §6§oEntering_Creeper_Zone,x:6,y:0,z:1}",Riding:{id:MinecartCommandBlock,Command:"setblock ~9 ~-2 ~-3 command_block 0 replace {CustomName:@,Command:/execute @e[type=ArmorStand,name=CreeperZone] ~ ~ ~ /execute @p[r=16] ~ ~ ~ scoreboard players set @p CreeperZoned 1,id:Control,x:7,y:0,z:0}",Riding:{id:MinecartCommandBlock,Command:"setblock ~10 ~-2 ~-3 command_block 0 replace {CustomName:@,Command:/execute @p[score_CreeperZoned=0] ~ ~ ~ /execute @e[type=Creeper] ~ ~ ~ /entitydata @e[type=Creeper] {ExplosionRadius:0b},id:Control,x:8,y:0,z:0}",Riding:{id:MinecartCommandBlock,Command:"setblock ~2 ~-1 ~-3 hopper 5 replace {TransferCooldown:4,Items:[{Slot:0b,id:minecraft:redstone_torch,Count:1b,Damage:0s}],id:Hopper,Lock:,x:0,y:1,z:0}",Riding:{id:MinecartCommandBlock,Command:"setblock ~3 ~-1 ~-3 hopper 4 replace {TransferCooldown:8,Items:[],id:Hopper,Lock:,x:1,y:1,z:0}",Riding:{id:MinecartCommandBlock,Command:"setblock ~6 ~-1 ~-2 command_block 0 replace {CustomName:@,Command:testfor @p[score_CreeperZoned_min=1],id:Control,x:4,y:1,z:1}",Riding:{id:MinecartCommandBlock,Command:"setblock ~2 ~0 ~-3 command_block 0 replace {CustomName:@,Command:/fill ~ ~-2 ~ ~8 ~ ~ air,id:Control,x:0,y:2,z:0}",Riding:{id:MinecartCommandBlock,Command:"setblock ~5 ~0 ~-3 command_block 1 replace {CustomName:@,Command:/fill ~5 ~-1 ~ ~ ~-1 ~ stone,id:Control,x:3,y:2,z:0}",Riding:{id:MinecartCommandBlock,Command:"setblock ~6 ~0 ~-3 command_block 0 replace {CustomName:@,Command:/scoreboard objectives add IsCreeperZone dummy,id:Control,x:4,y:2,z:0}",Riding:{id:MinecartCommandBlock,Command:"setblock ~7 ~0 ~-3 command_block 0 replace {CustomName:@,Command:/execute @e[type=Item,score_IsCreeperZone_min=1] ~ ~ ~ summon ArmorStand ~ ~ ~ {CustomName:CreeperZone,CustomNameVisible:1},id:Control,x:5,y:2,z:0}",Riding:{id:MinecartCommandBlock,Command:"setblock ~8 ~0 ~-3 command_block 0 replace {CustomName:@,Command:scoreboard players set @p CreeperZoned 0,id:Control,x:6,y:2,z:0}",Riding:{id:MinecartCommandBlock,Command:"setblock ~9 ~0 ~-3 command_block 1 replace {CustomName:@,Command:/execute @p[score_CreeperZoned=1] ~ ~ ~ /execute @p ~ ~ ~ /execute @e[type=Creeper,r=16] ~ ~ ~ /entitydata @e[type=Creeper] {ExplosionRadius:3b},id:Control,x:7,y:2,z:0}",Riding:{id:MinecartCommandBlock,Command:"setblock ~9 ~0 ~-2 command_block 1 replace {CustomName:@,id:Control,Command:say §6§oLeaving_Creeper_Zone,x:7,y:2,z:1}",Riding:{id:MinecartCommandBlock,Command:"setblock ~10 ~0 ~-3 command_block 0 replace {CustomName:@,Command:/blockdata ~-7 ~-1 ~ {TransferCooldown:0},id:Control,x:8,y:2,z:0}",Riding:{id:MinecartCommandBlock,Command:"setblock ~4 ~-2 ~-3 stone",Riding:{id:MinecartCommandBlock,Command:"fill ~5 ~-1 ~-3 ~10 ~-1 ~-3 stone",Riding:{id:MinecartCommandBlock,Command:"setblock ~7 ~-2 ~-2 stone",Riding:{id:MinecartCommandBlock,Command:"setblock ~8 ~-1 ~-2 stone",Riding:{id:MinecartCommandBlock,Command:buffer,Riding:{id:FallingSand,Time:1,Data:0,TileID:157,Riding:{id:FallingSand,Time:1,Data:0,TileID:152,Riding:{id:Item,Age:5996,Motion:[0.0,0.0,-0.1]}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}