Stromy

První vytvořte socreboard:
/scoreboard objectives add Drevo dummy
Commandy:
Clock 1: /fill ~ ~-1 ~ ~ ~-1 ~ redstone_block
Clock 0: /fill ~ ~1 ~ ~ ~1 ~ air
Drevo 2: /scoreboard players add @e[type=Item] Drevo 1 {Item:{id:minecraft:log2}}
Drevo 1: /scoreboard players add @e[type=Item] Drevo 1 {Item:{id:minecraft:log}}
Niceni: /execute @e[score_Drevo_min=1,score_Drevo=1] ~ ~ ~ /setblock ~ ~1 ~ air 0 destroy wood