Random Rolls?

Jinx

I've been playing around with Twine a lot and I still learn new things and there are all sorts of things for me to do in Twine. So I figured it was time for me to get into the big-boy scripting.

For instance, random rolls. Like a D-20 or so. And if a certain number is rolled, or randomly generated, I could use that to my advantage by playing out different scenarios in my game. Like for example, I open a passage and a random number is rolled as the player-character finds loot, like coins or something. A random amount of coins.

Is there a script or a macro for random rolls? Like, I dunno, something simple like <<roll 20 $money>> for a random number between 1 and 20 to add to $money.

mykael

either(1,2,3,4,5,6)

will roll a d6.

Jinx

mykael wrote:

either(1,2,3,4,5,6)

will roll a d6.

Okay... Now how do I use it to bring up different passages? How can I add it to a $money variable?

Wraithbane

<<set $money = Math.floor(Math.random()*6)>>

TheMadExile

Jinx wrote:

Is there a script or a macro for random rolls? Like, I dunno, something simple like <<roll 20 $money>> for a random number between 1 and 20 to add to $money.

I believe you're using SugarCube, aren't you?

If so, you can use the random(min, max) utility function.  For example:


// returns a whole number within the range: 16
random(1, 6)

// returns a whole number within the range: 120
random(1, 20)

// simulate a 3d6 roll
random(1, 6) + random(1, 6) + random(1, 6)


To use that for an amount of coins, let's say, you might do something like these:


// sets $money to randomly selected amount in the range: 120
<<set $money to random(1, 20)>>

// sets $money to randomly selected amount in the range: 1050
<<set $money to random(10, 50)>>


Wraithbane wrote:

<<set $money = Math.floor(Math.random()*6)>>

That's off by one.  Math.floor(Math.random()*6) returns 05, you'd need to add 1 to that if you wanted a range of 16.

The reason being that Math.random() returns a real in the range: 0.00.999~9, so multiplying it by 6 yields 0.05.999~94, which when floored yields 05.

Wraithbane

TheMadExile wrote:

Jinx wrote:

Is there a script or a macro for random rolls? Like, I dunno, something simple like <<roll 20 $money>> for a random number between 1 and 20 to add to $money.

I believe you're using SugarCube, aren't you?

If so, you can use the random(min, max) utility function.  For example:

// returns a whole number within the range: 16
random(1, 6)

// returns a whole number within the range: 120
random(1, 20)

// simulate a 3d6 roll
random(1, 6) + random(1, 6) + random(1, 6)


To use that for an amount of coins, let's say, you might do something like these:


// sets $money to randomly selected amount in the range: 120
<<set $money to random(1, 20)>>

// sets $money to randomly selected amount in the range: 1050
<<set $money to random(10, 50)>>


Wraithbane wrote:

<<set $money = Math.floor(Math.random()*6)>>

That's off by one.  Math.floor(Math.random()*6) returns 05, you'd need to add 1 to that if you wanted a range of 16.

The reason being that Math.random() returns a real in the range: 0.00.999~9, so multiplying it by 6 yields 0.05.999~94, which when floored yields 05.

Ah!! Good to know!! Thanks.