Piston executes from top to bottom?

[bangali]

OK, so what i am reading on another reply is that a piston will be checked for execution based on what is subscribed to in the piston. It can also set the subscription to ‘never’ for my definition of ‘inactive’ on my initial post.

think you meant active and inactive as in this post:

How are pistons executed?

This is not a problem but a question of how pistons work. I see a lot of information on creating your first piston, but I am trying to figure out the execution. Obviously there is an engine created by webcore within ST as a central queueing and execution process (simply stated). I have seen that pistons can be fired from routines which would indicate that that piston is not being evaluated but rather there to be fired. Another thing I am seeing that the condition is being evaluated before th…

if yes you are right. if you set the piston to never subscribe it will only be executed when called by another piston or some other way. remember not to pause the piston though. paused pistons dont get executed even when executed by being called.

[flyize]

Apologies for bumping this, but it topical. How can I prevent an entire piston from being evaluated when some condition becomes true?

[bangali]

the entire piston is always evaluated but off course this evaluation honors all conditions in the piston. so if sections of the piston should not be evaluated put those blocks of code under conditions which will cause them to be skipped based on those conditions.

[flyize]

That’s what I was afraid of. I guess I’ll break the stuff out into another piston. Thanks.

[bangali]

or make those blocks conditional.