I understand the basics of using mission bits but in the evn bible there is a piece i can't understand how it works or wat it does .
And if I check the nova missions it used quite often .
I mean this part:
| Logical or operator
& Logical and operator
! Logical negation operator
( ) Parenthetical enclosure
Please help!!!!!!!!!
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What this means is that:
| = or
& = and
! = clear the bit
() = thingees to put around your bit string to make Nova understand what your trying to say.
So, for the sake of illustraation, I will use two bits, 200 and 300. Say 300 is already set. Then you have a mission that you want to tell it to clear bit 300 and set bit 200. This is how I think it's supposed to be done:
b200 & !b300
set bit 200 and clear bit 300.
Does that help?
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"This space /was/ left intenionally blank but has been replaced with useless tosh."
Actually, Mantaray is thinking of set expressions, which work slightly different. Only the "!" is in the set expressions, and works a little differently.
Okay, basically, you have four "tools" to do things other than the regular b23 in the test fields.
| means "or". It can be used so that the engine can do something if either of two things are true (or not true).
b1 | b2 in the Availibility field for say, the oütf resource means that you can see the outfit if either b1 or b2 is set.
& means "and". It can be used so that the engine can do something if both things are true (or not true).
b1 & b2 in the in the Availibility field for the oütf resource means that you can see the outfit if both b1 and b2 is set.
! means "not". It can be used so that the engine can do something if a bit is false.
!b1 in the in the Availibility field for the oütf resource means that you can see the outfit if b1 is cleared.
( )s are used to group things. Nova gets confused by "b1 | b2 & b3". It could mean either (b1 | b2) & b3 or b1 | (b2 & b3). Putting in the parentheses where I showed them means completely different things. (edit)Um, that doesn't sound gramatically right, but whatever.(/edit)
For set expressions, you do not need &, |, or ( )s. "!" is used to clear bits (in the form of !b1), and R(<op1> <op2> ) is used to randomize between two set opperations (in the form of R(b1 b2)).
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"What goes up must come down, unless it reaches Escape Velocity and flies off to Palshife to join the Rebellion."
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(This message has been edited by mrxak (edited 04-16-2002).)
I also recently made a post explaining a bit about ncbs on the nova board (url="http://"http://www.AmbrosiaSW.com/webboard/Forum26/HTML/004204-3.html")here(/url).
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"What goes up must come down, unless it reaches Escape Velocity and flies off to Palshife to join the Rebellion."
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Originally posted by mrxak:
Actually, Mantaray is thinking of set expressions, which work slightly different. Only the "!" is in the set expressions, and works a little differently.
No, ^ is also in set expressions.
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**Okay, basically, you have four "tools" to do things other than the regular b23 in the test fields.
| means "or". It can be used so that the engine can do something if either of two things are true (or not true).
b1 | b2 in the Availibility field for say, the oütf resource means that you can see the outfit if either b1 or b2 is set.
& means "and". It can be used so that the engine can do something if both things are true (or not true).
b1 & b2 in the in the Availibility field for the oütf resource means that you can see the outfit if both b1 and b2 is set.
! means "not". It can be used so that the engine can do something if a bit is false.
!b1 in the in the Availibility field for the oütf resource means that you can see the outfit if b1 is cleared.
( )s are used to group things. Nova gets confused by "b1 | b2 & b3". It could mean either (b1 | b2) & b3 or b1 | (b2 & b3). Putting in the parentheses where I showed them means completely different things. (edit)Um, that doesn't sound gramatically right, but whatever.(/edit)**
Remember, if you have an expression dealing with 3 or more bits, you HAVE to use parenthesies. Basically, if you have b1 & b2 & b3, even though it's perfectly clear and the same meaning whether it's (b1 & b2) & b3 or it's b1 & (b2 & b3), you still have to use parenthesies. The bible makes this very clear. I have no wish to test the validity of this statement, either 
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For set expressions, you do not need &, |, or ( )s. "!" is used to clear bits (in the form of !b1), and R(<op1> <op2> ) is used to randomize between two set opperations (in the form of R(b1 b2)).
Yeah, that's right. Although there is the "^" operator (in the form of ^b1) which toggles the bit. Basically, if b1 is set, then ^b1 will clear b1, and if b1 is cleared, then ^b1 will set b1. And R(<op1> <op2> ) has a 50% chance of doing either operation.
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Kevin Ballard
(url="http://"mailto:kevin@sb.org")mailto:kevin@sb.org(/url)kevin@sb.org
