Starts when · Starts a flow
When a piston retracts
Starts when a piston retracts. Cancel block piston retract stops it.
m.on.block_piston_retract
In a flow
“When a piston retracts, the steps wired after it run.”
When a piston retracts → Broadcast {trigger.direction}
What it does
Starts when a piston retracts. Cancel block piston retract stops it. It starts a flow, and gives the steps after it values about what happened. It gives 3 values later steps can use. Find it under Starts when in the palette.
When to use it
Use it to start a flow when a piston retracts.
When not to
If the flow should start from a click or a command instead, pick that trigger: a flow has exactly one.
Typical wiring
Values it gives
- Block Block
-
The block of the block piston retract. e.g. Stone
If it's empty: Empty when the step didn't make one (it stopped early or was skipped); steps reading it get nothing.
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- Direction Text
-
The direction of the block piston retract. e.g. minecraft:stone
If it's empty: Empty when the step didn't make one (it stopped early or was skipped); steps reading it get nothing.
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- Is sticky Yes / no
-
The is sticky of the block piston retract. e.g. true
If it's empty: Empty when the step didn't make one (it stopped early or was skipped); steps reading it get nothing.
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