Fundamentals
This page covers the command concepts that most Skygen systems are built from.
Command blocks
| Mode | Typical use |
|---|---|
| Impulse | Run a command once when triggered |
| Repeat | Run a command continuously while active |
| Chain | Run after another command block in a command chain |
Selectors
@a— all players@p— nearest player@e— entities@s— the current command executor
Selectors can be filtered, for example @a[tag=playing] or @e[type=bat,name="dirtgen"].
Scoreboards
Create an objective with scoreboard objectives add money dummy.
Set a player's value with scoreboard players set @p money 100.
Add with scoreboard players add @p money 25, or remove with scoreboard players remove @p money 25.
Score filters can also be used inside selectors, such as @a[scores={money=100..}].
Tags
Use tag @p add hasGenerator to add a tag and tag @p remove hasGenerator to remove it.
Execute
execute changes the context a command runs in.
For example: execute as @a at @s run setblock ~ ~-1 ~ stone
Raw text and actionbar UI
titleraw can display structured text in the actionbar. A score rawtext component inserts a live scoreboard value instead of hardcoding a number.
Clone
clone copies blocks from one location to another.
A simple example is clone 100 64 100 100 64 100 ~ ~ ~.
This is one of the key commands behind player-placeable Egg Gen systems.