Minecraft Command: The Complete Strategy Guide – Trick #19: “/execute Command: Specifying “Who,” “Where,” “What condition,” and “What to do””

“/execute Command: Specifying “Who,” “Where,” “What condition,” and “What to do””

Command entered in the Command Block:

A. ⚡Snowball Thunderball

Block Type: Repeat / Redstone: Needs Redstones

/execute as @e[type=snowball] at @s run summon lightning_bolt ~~~
This command performs the action of a snowball (as) summoning a lightning bolt (run) at its own location (at).

B. 💥Snowball Rocket Launcher

Block Type: Repeat / Redstone: Needs Redstones

/execute as @e[type=snowball] at @s unless block ~~-1~ air run summon ender_crystal ~~~ ~~ crystal_explode
This command performs the action of a snowball (as) summoning an exploding Ender Crystal (run) at its own location (at), but only if the block directly beneath it is not an air block (unless), meaning when the snowball hits the ground.

C. 🌀The Pinwheel Trap

Block Type: Repeat / Redstone: Needs Redstones

/execute as @e[type=!player] at @s if block ~~-1~ gold_block run tp ~~~ ~45~
This command block repeatedly performs the action of an entity (as) at its own location (at) teleporting to the same spot and rotating 45 degrees (run), if the block directly beneath it is a gold block (if).

D. 🔄Block Transformation Underfoot

Block Type: Impuls / Redstone: Needs Redstones

/execute as @e[type=!player] at @s run setblock ~~-1~ gold_block
This command block performs the action of any non-player entity (as) at its own location (at) placing a gold block directly beneath it (run).