How do I return and output if a comparison is true once?

[hoduliem]

I am trying to make a game.  I want to use an if statement.  For instance "if my ball has crossed over position x then produce a constant c1" but when the ball moves out of position x I want that constant to still be there.  Any ideas?

[Hornless.Rhino]

Have a look at the "In Range and Coerce Function" block.(Whoops missed the point)

Ok try a boolean latch to determine if it has "crossed over" previously.

Message Edited by Hornless.Rhino on 12-04-2010 11:31 AM