Follow procedure half the time? in Developer Help

ID:155075
 
Sep 26 2011, 2:51 pm
I was wondering if anyone knows a way to have a procedure happen exactly 50% of the time. I'm not taking about using prob(50) or pick(A,B) or whatever.

For example I'd like a projectile to move 2 steps, then create another object. Any ideas?
#1 Sep 26 2011, 3:04 pm
Modulus!

<dm>
for(var/n in 1 to 10)
if(!(n % 2))
world << n
#2 Sep 26 2011, 3:12 pm
In response to Kaiochao (#1)
Kaiochao wrote:
Modulus!

<dm>
for(var/n in 1 to 10)
if(!(n % 2))
world << n

Ah thank you, do you possibly think you could go into a bit of detail how this works? I'd like to use this for future reference as well
#3 Sep 26 2011, 3:15 pm
In response to AbdelJN (#2)
Check the DM Reference entry for the % operator. It simply gives the remainder of A divided by B.

In the example I provided, it checks if A%B is 0, which is the case in even numbers divided by 2.
#4 Sep 26 2011, 3:25 pm
In response to Kaiochao (#3)
Kaiochao wrote:
Check the DM Reference entry for the % operator. It simply gives the remainder of A divided by B.

In the example I provided, it checks if A%B is 0, which is the case in even numbers divided by 2.

Alright but not all even numbers divided by 2 equals 0 so the example doesn't really work unless I'm missing something.
#5 Sep 26 2011, 5:38 pm
In response to AbdelJN (#4)
Name a single even number that, divided by 2, leaves a remainder that is not 0.
#6 Sep 26 2011, 5:46 pm
In response to Robertbanks2 (#5)
Robertbanks2 wrote:
Name a single even number that, divided by 2, leaves a remainder that is not 0.

Sorry, I misunderstood. I saw the % operator as solely giving the quotient of two numbers. Then I read again and found that it gives the remainder.

As for your example Kaiochao, it's correct. Thanks:)