Choosing random Choices

ID:899306
 
Jul 29 2012, 11:06 pm
(See the best response by DarkCampainger.)
Code:


Problem description:Is there a way to choose random choices, for example

(prob doesnt work)

rand(1,3)
   if(1)
      ...
   if(2)
      ...
   if(3)
      ...


Jul 29 2012, 11:11 pm
switch(rand(1,3))

just rand(1,3) doesn't do anything.
Jul 29 2012, 11:16 pm
hmm. I see. It seems to have worked. Thanks!
Jul 29 2012, 11:21 pm
Best response
Here's a couple of other options:
mob/verb/Test()

    // Using rand() with switch()
    switch(rand(1,3))
        if(1)
            // 33% chance
            world<<"A"
        if(2)
            // 33% chance
            world<<"B"
        if(3)
            // 33% chance
            world<<"C"

    // Using prob() with an if-else chain
    if(prob(50))
        // 50% chance
        world<<"A"
    else if(prob(25))
        // 12.5% chance (.50*.25)
        world<<"B"
    else if(prob(30))
        // 3.75% chance (.50*.25*.30)
        world<<"B"
    else
        // 33.75% chance (1.0 - (.5 + .125 + .0375))
        world<<"C"

    // Using pick() with embedded probabilities and switch()
    switch( pick(20; "A",
                 45; "B",
                 35; "C") )
        if("A")
            // 20% chance
            world<<"A"
        if("B")
            // 45% chance
            world<<"B"
        if("C")
            // 35% chance
            world<<"C"


The last one is probably the easiest to configure, but is a little difficult to read.

<edit>
Fixed probabilities in third example so they add up to 100
Jul 29 2012, 11:24 pm
Oh wow, this is perfect! Thank you!
Jul 29 2012, 11:25 pm
And I can read the last one lol. No worries.
Jul 29 2012, 11:27 pm
In response to DarkCampainger
Lol, I was gonna go into all of that but found myself not wanting to provide additional information when it was un-needed for what was intended.

I'll vote yours up though, you put effort in your response.
Jul 29 2012, 11:28 pm
In response to Chiwy8
Yea, it's not too bad so long as you align the text nicely.

Also, I made a quick adjustment to it. The probabilities in pick() should add up to 100 to have the expected outcomes.