RPG Attributes Generator

From Rosetta Code
Task
RPG Attributes Generator
You are encouraged to solve this task according to the task description, using any language you may know.

You're running a tabletop RPG, and your players are creating characters.

Each character has six core attributes: strength, dexterity, constitution, intelligence, wisdom, and charisma.

One way of generating values for these attributes is to roll four, 6-sided dice (d6) and sum the three highest rolls, discarding the lowest roll.

Some players like to assign values to their attributes in the order they're rolled.

To ensure generated characters don't put players at a disadvantage, the following requirements must be satisfied:

  • The total of all character attributes must be at least 75.
  • At least two of the attributes must be at least 15.

However, this can require a lot of manual dice rolling. A programatic solution would be much faster.

Task

Write a program that:

  1. Generates 4 random, whole values between 1 and 6.
  2. Saves the sum of the 3 largest values.
  3. Generates a total of 6 values this way.
  4. Displays the total, and all 6 values once finished.

  • The order in which each value was generated must be preserved.
  • The total of all 6 values must be at least 75.
  • At least 2 of the values must be 15 or more.

C[edit]

Translation of: Go
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
 
int compareInts(const void *i1, const void *i2) {
int a = *((int *)i1);
int b = *((int *)i2);
return a - b;
}
 
int main() {
int i, j, nsum, vsum, vcount, values[6], numbers[4];
srand(time(NULL));
for (;;) {
vsum = 0;
for (i = 0; i < 6; ++i) {
for (j = 0; j < 4; ++j) {
numbers[j] = 1 + rand() % 6;
}
qsort(numbers, 4, sizeof(int), compareInts);
nsum = 0;
for (j = 1; j < 4; ++j) {
nsum += numbers[j];
}
values[i] = nsum;
vsum += values[i];
}
if (vsum < 75) continue;
vcount = 0;
for (j = 0; j < 6; ++j) {
if (values[j] >= 15) vcount++;
}
if (vcount < 2) continue;
printf("The 6 random numbers generated are:\n");
printf("[");
for (j = 0; j < 6; ++j) printf("%d ", values[j]);
printf("\b]\n");
printf("\nTheir sum is %d and %d of them are >= 15\n", vsum, vcount);
break;
}
return 0;
}
Output:

Sample run:

The 6 random numbers generated are:
[9 15 15 17 13 8]

Their sum is 77 and 3 of them are >= 15

C++[edit]

GCC 4.9.2, unoptimised.

#include <algorithm>
#include <ctime>
#include <iostream>
#include <cstdlib>
#include <string>
 
using namespace std;
 
int main()
{
srand(time(0));
 
unsigned int attributes_total = 0;
unsigned int count = 0;
int attributes[6] = {};
int rolls[4] = {};
 
while(attributes_total < 75 || count < 2)
{
attributes_total = 0;
count = 0;
 
for(int attrib = 0; attrib < 6; attrib++)
{
for(int roll = 0; roll < 4; roll++)
{
rolls[roll] = 1 + (rand() % 6);
}
 
sort(rolls, rolls + 4);
int roll_total = rolls[1] + rolls[2] + rolls[3];
 
attributes[attrib] = roll_total;
attributes_total += roll_total;
 
if(roll_total >= 15) count++;
}
}
 
cout << "Attributes generated : [";
cout << attributes[0] << ", ";
cout << attributes[1] << ", ";
cout << attributes[2] << ", ";
cout << attributes[3] << ", ";
cout << attributes[4] << ", ";
cout << attributes[5];
 
cout << "]\nTotal: " << attributes_total;
cout << ", Values above 15 : " << count;
 
return 0;
}
Output:

Sample run:

Attributes generated : [13, 13, 17, 14, 10, 16]
Total: 83, Values above 15 : 2

C#[edit]

Translation of: Visual Basic .NET
using System;
using System.Collections.Generic;
using System.Linq;
 
static class Module1
{
static Random r = new Random();
 
static List<int> getThree(int n)
{
List<int> g3 = new List<int>();
for (int i = 0; i < 4; i++) g3.Add(r.Next(n) + 1);
g3.Sort(); g3.RemoveAt(0); return g3;
}
 
static List<int> getSix()
{
List<int> g6 = new List<int>();
for (int i = 0; i < 6; i++) g6.Add(getThree(6).Sum());
return g6;
}
 
static void Main(string[] args)
{
bool good = false; do {
List<int> gs = getSix(); int gss = gs.Sum(); int hvc = gs.FindAll(x => x > 14).Count;
Console.Write("attribs: {0}, sum={1}, ({2} sum, high vals={3})",
string.Join(", ", gs), gss, gss >= 75 ? "good" : "low", hvc);
Console.WriteLine(" - {0}", (good = gs.Sum() >= 75 && hvc > 1) ? "success" : "failure");
} while (!good);
}
}
Output:

sample outputs:

attribs: 10, 11, 11, 11, 11, 14, sum=68, (low sum, high vals=0) - failure
attribs: 16, 13, 12, 10, 15, 16, sum=82, (good sum, high vals=3) - success
attribs: 16, 8, 9, 15, 16, 12, sum=76, (good sum, high vals=3) - success

Crystal[edit]

def roll_stat
dices = Array(Int32).new(4) { rand(1..6) }
dices.sum - dices.min
end
 
def roll_character
loop do
stats = Array(Int32).new(6) { roll_stat }
return stats if stats.sum >= 75 && stats.count(&.>=(15)) >= 2
end
end
 
10.times do
stats = roll_character
puts "stats: #{stats}, sum is #{stats.sum}"
end

sample output:

stats: [14, 11, 18, 14, 12, 16], sum is 85
stats: [10, 12, 13, 16, 17, 16], sum is 84
stats: [12, 17, 13, 11, 17, 13], sum is 83
stats: [16, 12, 11, 9, 16, 12], sum is 76
stats: [14, 17, 12, 15, 16, 14], sum is 88
stats: [9, 17, 17, 7, 9, 16], sum is 75
stats: [17, 14, 17, 12, 12, 13], sum is 85
stats: [16, 8, 14, 12, 11, 16], sum is 77
stats: [17, 13, 11, 10, 14, 16], sum is 81
stats: [11, 16, 11, 13, 15, 16], sum is 82


Factor[edit]

Works with: Factor version 0.98
USING: combinators.short-circuit dice formatting io kernel math
math.statistics qw sequences ;
IN: rosetta-code.rpg-attributes-generator
 
CONSTANT: stat-names qw{ Str Dex Con Int Wis Cha }
 
: attribute ( -- n )
4 [ ROLL: 1d6 ] replicate 3 <iota> kth-largests sum ;
 
: stats ( -- seq ) 6 [ attribute ] replicate ;
 
: valid-stats? ( seq -- ? )
{ [ [ 15 >= ] count 2 >= ] [ sum 75 >= ] } 1&& ;
 
: generate-valid-stats ( -- seq )
f [ dup valid-stats? ] [ drop stats ] do until ;
 
: stats-info ( seq -- )
[ sum ] [ [ 15 >= ] count ] bi
"Total: %d\n# of attributes >= 15: %d\n" printf ;
 
: main ( -- )
generate-valid-stats dup stat-names swap
[ "%s: %d\n" printf ] 2each nl stats-info ;
 
MAIN: main
Output:
Str: 9
Dex: 13
Con: 14
Int: 17
Wis: 17
Cha: 11

Total: 81
# of attributes >= 15: 2

Go[edit]

package main
 
import (
"fmt"
"math/rand"
"sort"
"time"
)
 
func main() {
s := rand.NewSource(time.Now().UnixNano())
r := rand.New(s)
for {
var values [6]int
vsum := 0
for i := range values {
var numbers [4]int
for j := range numbers {
numbers[j] = 1 + r.Intn(6)
}
sort.Ints(numbers[:])
nsum := 0
for _, n := range numbers[1:] {
nsum += n
}
values[i] = nsum
vsum += values[i]
}
if vsum < 75 {
continue
}
vcount := 0
for _, v := range values {
if v >= 15 {
vcount++
}
}
if vcount < 2 {
continue
}
fmt.Println("The 6 random numbers generated are:")
fmt.Println(values)
fmt.Println("\nTheir sum is", vsum, "and", vcount, "of them are >= 15")
break
}
}
Output:

Sample run:

The 6 random numbers generated are:
[16 15 7 14 9 15]

Their sum is 76 and 3 of them are >= 15

Haskell[edit]

import Control.Monad (replicateM)
import System.Random (randomRIO)
import Data.List (sort)
 
character :: IO [Int]
character =
discardUntil
(((&&) . (75 <) . sum) <*> ((2 <=) . length . filter (15 <=)))
(replicateM 6 $
(sum . tail . sort) <$> replicateM 4 (randomRIO (1, 6 :: Int)))
 
discardUntil :: ([Int] -> Bool) -> IO [Int] -> IO [Int]
discardUntil p throw =
let go =
throw >>=
\x ->
if p x
then return x
else go
in go
 
-- TEST -----------------------------------------------------------
main :: IO ()
main = replicateM 10 character >>= mapM_ (print . (sum >>= (,)))
Output:
Sample computation:

(86,[15,13,17,17,13,11])
(80,[16,11,15,13,11,14])
(77,[15,8,15,11,15,13])
(76,[12,11,17,11,7,18])
(76,[11,16,8,15,15,11])
(87,[14,15,12,16,15,15])
(84,[11,11,16,15,15,16])
(77,[14,13,15,8,11,16])
(80,[12,15,11,17,15,10])
(89,[15,12,16,17,12,17])

Java[edit]

 
static boolean goodRoll = false;
 
public static int genAttribute(){
// Create a new Random object to populate our array with. We use nextInt(6)+1 because 6 is exclusive and 0 is inclusive
Random dice = new Random();
int[] sumArray = {dice.nextInt(6)+1, dice.nextInt(6)+1, dice.nextInt(6)+1, dice.nextInt(6)+1};
 
// Sort the array ascending, last 3 dice will always be the highest, return sum.
java.util.Arrays.sort(sumArray);
return (sumArray[1] + sumArray[2] + sumArray[3]);
}
 
public static boolean checkFinalArray(int[] checkArray){
int fifteenCount = 0;
 
// First check for how many 15+'s
for (int z : checkArray){
if (z >= 15){
fifteenCount++;
}
}
 
return (fifteenCount >= 2 && Arrays.stream(checkArray).sum() >= 75);
}
 
public static void main(String[] args) {
// Here we use a while loop to make sure that while the conditions aren't met, we reroll.
while (!goodRoll){
int[] finalArray;
finalArray = new int[6];
 
// Generate 6 attributes using above method genAttributes()
for (int i = 0; i<6;++i){
finalArray[i] = genAttribute();
}
// Pass finalArray to be checked
if (checkFinalArray(finalArray)){
System.out.println("sum: " + Arrays.stream(finalArray).sum());
// Enhanced for to print each die
for (int x : finalArray){
System.out.println(x);
}
goodRoll = true; // Exit the loop if conditions are met.
}
}
}
 
Output:
sum: 79
10
16
14
16
8
15

JavaScript[edit]

Imperative[edit]

function roll() {
const stats = {
total: 0,
rolls: []
}
let count = 0;
 
for(let i=0;i<=5;i++) {
let d6s = [];
 
for(let j=0;j<=3;j++) {
d6s.push(Math.ceil(Math.random() * 6))
}
 
d6s.sort().splice(0, 1);
rollTotal = d6s.reduce((a, b) => a+b, 0);
 
stats.rolls.push(rollTotal);
stats.total += rollTotal;
}
 
return stats;
}
 
let rolledCharacter = roll();
 
while(rolledCharacter.total < 75 || rolledCharacter.rolls.filter(a => a >= 15).length < 2){
rolledCharacter = roll();
}
 
console.log(`The 6 random numbers generated are:
${rolledCharacter.rolls.join(', ')}
 
Their sum is ${rolledCharacter.total} and ${rolledCharacter.rolls.filter(a => a >= 15).length} of them are >= 15`);
Output:

Sample run:

The 6 random numbers generated are:
11, 17, 12, 12, 9, 16

Their sum is 77 and 2 of them are >= 15

Functional[edit]

Translation of: Haskell
(() => {
'use strict';
 
// main :: IO ()
const main = () =>
console.log(
unlines(
map(
() => {
const xs = character();
return showJSON([sum(xs), xs]);
},
enumFromTo(1, 10)
)
)
);
 
// character :: ([Int] -> Bool) -> [Int]
const character = () =>
discardUntil(
xs => 75 <= sum(xs) && 2 <= length(filter(x => 15 <= x, xs))
)(
() => map(
() => composeList([sum, tail, sort])(
map(x => randomRInt(1, 6), enumFromTo(1, 4))
),
enumFromTo(1, 6)
)
);
 
// discardUntil :: ([Int] -> Bool) -> (() -> [Int]) -> [Int]
const discardUntil = p => f => {
const go = () => {
const xs = f();
return p(xs) ? xs : go();
}
return go();
};
 
 
// GENERIC FUNCTIONS ------------------------------------
 
// composeList :: [(a -> a)] -> (a -> a)
const composeList = fs =>
x => fs.reduceRight((a, f) => f(a), x, fs);
 
// enumFromTo :: Int -> Int -> [Int]
const enumFromTo = (m, n) =>
Array.from({
length: 1 + n - m
}, (_, i) => m + i)
 
// filter :: (a -> Bool) -> [a] -> [a]
const filter = (f, xs) => xs.filter(f);
 
// Returns Infinity over objects without finite length
// this enables zip and zipWith to choose the shorter
// argument when one is non-finite, like cycle, repeat etc
 
// length :: [a] -> Int
const length = xs => xs.length || Infinity;
 
// map :: (a -> b) -> [a] -> [b]
const map = (f, xs) => xs.map(f);
 
// randomRInt :: Int -> Int -> Int
const randomRInt = (low, high) =>
low + Math.floor(
(Math.random() * ((high - low) + 1))
);
 
// showJSON :: a -> String
const showJSON = x => JSON.stringify(x);
 
// sort :: Ord a => [a] -> [a]
const sort = xs => xs.slice()
.sort((a, b) => a < b ? -1 : (a > b ? 1 : 0));
 
// sum :: [Num] -> Num
const sum = xs => xs.reduce((a, x) => a + x, 0);
 
// tail :: [a] -> [a]
const tail = xs => 0 < xs.length ? xs.slice(1) : [];
 
// unlines :: [String] -> String
const unlines = xs => xs.join('\n');
 
// MAIN ---
main();
})();
Output:

A sample of 10 character attribute sets:

[83,[9,13,16,17,12,16]]
[79,[13,16,12,10,16,12]]
[78,[15,11,13,14,15,10]]
[76,[16,13,11,15,10,11]]
[82,[13,7,16,15,16,15]]
[79,[14,14,14,14,13,10]]
[77,[9,9,15,16,16,12]]
[85,[16,15,16,11,12,15]]
[77,[15,12,12,9,14,15]]
[83,[17,15,14,14,11,12]]

Julia[edit]

roll_skip_lowest(dice, sides) = (r = rand(collect(1:sides), dice); sum(r) - minimum(r))
 
function rollRPGtoon()
attributes = zeros(Int, 6)
attsum = 0
gte15 = 0
 
while attsum < 75 || gte15 < 2
for i in 1:6
attributes[i] = roll_skip_lowest(4, 6)
end
attsum = sum(attributes)
gte15 = mapreduce(x -> x >= 15, +, attributes)
end
 
println("New RPG character roll: $attributes. Sum is $attsum, and $gte15 are >= 15.")
end
 
rollRPGtoon()
rollRPGtoon()
rollRPGtoon()
 
Output:

New RPG character roll: [15, 16, 15, 11, 9, 15]. Sum is 81, and 4 are >= 15. New RPG character roll: [12, 14, 15, 12, 10, 16]. Sum is 79, and 2 are >= 15. New RPG character roll: [10, 12, 13, 13, 15, 17]. Sum is 80, and 2 are >= 15.

Kotlin[edit]

// Version 1.2.51
 
import java.util.Random
 
fun main(args: Array<String>) {
val r = Random()
while (true) {
val values = IntArray(6)
for (i in 0..5) {
val numbers = IntArray(4) { 1 + r.nextInt(6) }
numbers.sort()
values[i] = numbers.drop(1).sum()
}
val vsum = values.sum()
val vcount = values.count { it >= 15 }
if (vsum < 75 || vcount < 2) continue
println("The 6 random numbers generated are:")
println(values.asList())
println("\nTheir sum is $vsum and $vcount of them are >= 15")
break
}
}
Output:

Sample run:

The 6 random numbers generated are:
[13, 14, 13, 15, 17, 8]

Their sum is 80 and 2 of them are >= 15

Pascal[edit]

 
program attributes;
 
var
total, roll,score, count: integer;
atribs : array [1..6] of integer;
 
begin
randomize; {Initalise the random number genertor}
repeat
count:=0;
total:=0;
for score :=1 to 6 do begin
{roll:=random(18)+1; produce a number up to 18, pretty much the same results}
for diceroll:=1 to 4 do dice[diceroll]:=random(6)+1; {roll 4 six sided die}
 
{find lowest rolled dice. If we roll two or more equal low rolls then we
eliminate the first of them, change '<' to '<=' to eliminate last low die}

lowroll:=7;
lowdie:=0;
for diceroll:=1 to 4 do if (dice[diceroll] < lowroll) then begin
lowroll := dice[diceroll];
lowdie := diceroll;
end;
{add up higest three dice}
roll:=0;
for diceroll:=1 to 4 do if (diceroll <> lowdie) then roll := roll + dice[diceroll];
atribs[score]:=roll;
total := total + roll;
if (roll>15) then count:=count+1;
end;
until ((total>74) and (count>1)); {this evens out different rolling methods }
{ Prettily print the attributes out }
writeln('Attributes :');
for count:=1 to 6 do
writeln(count,'.......',atribs[count]:2);
writeln(' ---');
writeln('Total ',total:3);
writeln(' ---');
end.
 
Output:
Attributes :
1....... 5
2.......13
3....... 8
4.......17
5.......15
6.......18
       ---
Total   76
       ---
Attributes :
1.......17
2.......13
3.......17
4.......12
5.......12
6.......16
       ---
Total   87
       ---
Attributes :
1.......16
2....... 9
3.......10
4.......17
5.......15
6....... 9
       ---
Total   76

Perl 6[edit]

Works with: Rakudo Star version 2018.04.1
my ( $min_sum, $hero_attr_min, $hero_count_min ) = 75, 15, 2;
my @attr-names = <Str Int Wis Dex Con Cha>;
 
sub heroic { + @^a.grep: * >= $hero_attr_min }
 
my @attr;
repeat until @attr.sum >= $min_sum
and heroic(@attr) >= $hero_count_min {
 
@attr = @attr-names.map: { (1..6).roll(4).sort(+*).skip(1).sum };
}
 
say @attr-names Z=> @attr;
say "Sum: {@attr.sum}, with {heroic(@attr)} attributes >= $hero_attr_min";
Output:
(Str => 15 Int => 16 Wis => 13 Dex => 11 Con => 15 Cha => 6)
Sum: 76, with 3 attributes >= 15

Phix[edit]

sequence numbers = repeat(0,6)
integer t,n
while true do
for i=1 to length(numbers) do
sequence ni = sq_rand(repeat(6,4))
numbers[i] = sum(ni)-min(ni)
end for
t = sum(numbers)
n = sum(sq_ge(numbers,15))
if t>=75 and n>=2 then exit end if
 ?"re-rolling..." -- (occasionally >20)
end while
printf(1,"The 6 attributes generated are:\n")
printf(1,"strength %d, dexterity %d, constitution %d, "&
"intelligence %d, wisdom %d, and charisma %d.\n",
numbers)
printf(1,"\nTheir sum is %d and %d of them are >=15\n",{t,n})
Output:
"re-rolling..."
"re-rolling..."
The 6 attributes generated are:
strength 14, dexterity 15, constitution 17, intelligence 9, wisdom 13, and charisma 18.

Their sum is 86 and 3 of them are >=15

PHP[edit]

<?php
 
$attributesTotal = 0;
$count = 0;
 
while($attributesTotal < 75 || $count < 2) {
$attributes = [];
 
foreach(range(0, 5) as $attribute) {
$rolls = [];
 
foreach(range(0, 3) as $roll) {
$rolls[] = rand(1, 6);
}
 
sort($rolls);
array_shift($rolls);
 
$total = array_sum($rolls);
 
if($total >= 15) {
$count += 1;
}
 
$attributes[] = $total;
}
 
$attributesTotal = array_sum($attributes);
}
 
print_r($attributes);

PureBasic[edit]

#heroicAttributeMinimum = 15
#heroicAttributeCountMinimum = 2
#attributeSumMinimum = 75
#attributeCount = 6
 
Procedure roll_attribute()
Protected i, sum
Dim rolls(3)
 
For i = 0 To 3
rolls(i) = Random(6, 1)
Next i
 
;sum the highest three rolls
SortArray(rolls(), #PB_Sort_Descending)
For i = 0 To 2
sum + rolls(i)
Next
ProcedureReturn sum
EndProcedure
 
Procedure displayAttributes(List attributes(), sum, heroicCount)
Protected output$
 
output$ = "Attributes generated: ["
ForEach attributes()
output$ + attributes()
If ListIndex(attributes()) <> #attributeCount - 1: output$ + ", ": EndIf
Next
output$ + "]"
PrintN(output$)
PrintN("Total: " + sum + ", Values " + #heroicAttributeMinimum + " or above: " + heroicCount)
EndProcedure
 
Procedure Gen_attributes()
Protected i, attributesSum, heroicAttributesCount
 
NewList attributes()
Repeat
ClearList(attributes())
attributesSum = 0: heroicAttributesCount = 0
For i = 1 To #attributeCount
AddElement(attributes())
attributes() = roll_attribute()
attributesSum + attributes()
heroicAttributesCount + Bool(attributes() >= #heroicAttributeMinimum)
Next
Until attributesSum >= #attributeSumMinimum And heroicAttributesCount >= #heroicAttributeCountMinimum
 
displayAttributes(attributes(), attributesSum, heroicAttributesCount)
EndProcedure
 
If OpenConsole("RPG Attributes Generator")
Gen_attributes()
Print(#CRLF$ + #CRLF$ + "Press ENTER to exit"): Input()
CloseConsole()
EndIf

Sample output:

Attributes generated: [13, 17, 17, 11, 9, 17]
Total: 84, Values 15 or above: 3

Python[edit]

Python: Simple[edit]

import random
random.seed()
attributes_total = 0
count = 0
 
while attributes_total < 75 or count < 2:
attributes = []
 
for attribute in range(0, 6):
rolls = []
 
for roll in range(0, 4):
result = random.randint(1, 6)
rolls.append(result)
 
sorted_rolls = sorted(rolls)
largest_3 = sorted_rolls[1:]
rolls_total = sum(largest_3)
 
if rolls_total >= 15:
count += 1
 
attributes.append(rolls_total)
 
attributes_total = sum(attributes)
 
print(attributes_total, attributes)
Output:

Sample run:

(74, [16, 10, 12, 9, 16, 11])

Python: Nested Comprehensions #1[edit]

import random
random.seed()
total = 0
count = 0
 
while total < 75 or count < 2:
attributes = [(sum(sorted([random.randint(1, 6) for roll in range(0, 4)])[1:])) for attribute in range(0, 6)]
 
for attribute in attributes:
if attribute >= 15:
count += 1
 
total = sum(attributes)
 
print(total, attributes)
Output:

Sample run:

(77, [17, 8, 15, 13, 12, 12])

Python: Nested Comprehensions #2[edit]

With comprehensions for checking candidate values in the while expression.

import random
 
def compute():
values = []
while (sum(values) < 75 # Total must be >= 75
or sum(1 for v in values if v >= 15) < 2): # Two must be >= 15
values = [sum(sorted(random.randint(1, 6) for _ in range(4))[1:]) for _ in range(6)]
return sum(values), values
 
for i in range(3):
print(*compute())
 
Output:
81 [12, 17, 9, 9, 17, 17]
75 [16, 7, 13, 12, 15, 12]
81 [15, 11, 15, 16, 10, 14]

Racket[edit]

#lang racket
 
(define (d6 . _)
(+ (random 6) 1))
 
(define (best-3-of-4d6 . _)
(apply + (rest (sort (build-list 4 d6) <))))
 
(define (generate-character)
(let* ((rolls (build-list 6 best-3-of-4d6))
(total (apply + rolls)))
(if (or (< total 75) (< (length (filter (curryr >= 15) rolls)) 2))
(generate-character)
(values rolls total))))
 
(module+ main
(define-values (rolled-stats total) (generate-character))
(printf "Rolls:\t~a~%Total:\t~a" rolled-stats total))
Output:
Rolls:	(11 16 10 13 12 15)
Total:	77

REXX[edit]

version 1[edit]

/* REXX
Generates 4 random, whole values between 1 and 6.
Saves the sum of the 3 largest values.
Generates a total of 6 values this way.
Displays the total, and all 6 values once finished.
*/

Do try=1 By 1
ge15=0
sum=0
ol=''
Do i=1 To 6
rl=''
Do j=1 To 4
rl=rl (random(5)+1)
End
rl=wordsort(rl)
rsum.i=maxsum()
If rsum.i>=15 Then ge15=ge15+1
sum=sum+rsum.i
ol=ol right(rsum.i,2)
End
Say ol '->' ge15 sum
If ge15>=2 & sum>=75 Then Leave
End
Say try 'iterations'
Say ol '=>' sum
Exit
 
maxsum: procedure Expose rl
/**********************************************************************
* Comute the sum of the 3 largest values
**********************************************************************/

m=0
Do i=2 To 4
m=m+word(rl,i)
End
Return m
 
wordsort: Procedure
/**********************************************************************
* Sort the list of words supplied as argument. Return the sorted list
**********************************************************************/

Parse Arg wl
wa.=''
wa.0=0
Do While wl<>''
Parse Var wl w wl
Do i=1 To wa.0
If wa.i>w Then Leave
End
If i<=wa.0 Then Do
Do j=wa.0 To i By -1
ii=j+1
wa.ii=wa.j
End
End
wa.i=w
wa.0=wa.0+1
End
swl=''
Do i=1 To wa.0
swl=swl wa.i
End
Return strip(swl)
Output:
I:\>rexx cast
 13 13  8 15 14 11 -> 1 74
 10  9 13  7 15  9 -> 1 63
 15 15 14 13 17 14 -> 3 88
3 iterations
 15 15 14 13 17 14 => 88

version 2[edit]

This REXX version doesn't need a sort to compute the sum of the largest three (of four) values.

/*REXX program generates values for six core attributes for a  RPG  (Role Playing Game).*/
do until m>=2 & $$>=75; $$= 0; list= /*do rolls until requirements are met. */
m= 0 /*the number of values ≥ 15 (so far).*/
do 6; $= 0 /*6 values (meet criteria); attrib. sum*/
do d=1 for 4; @.d= random(1, 6) /*roll four random dice (six sided die)*/
$= $ + @.d /*also obtain their sum (of die pips).*/
end /*d*/ /* [↓] use of MIN BIF avoids sorting.*/
$= $ - min(@.1, @.2, @.3, @.4) /*obtain the sum of the highest 3 rolls*/
list= list $; $$= $$ + $ /*append $──►list; add $ to overall $$.*/
$$= $$ + $ /*add the $ sum to the overall sum. */
m= m + ($>=15) /*get # of rolls that meet the minimum.*/
end /*do 6*/ /* [↑] gen six core attribute values. */
end /*until*/ /*stick a fork in it, we're all done. */
say 'The total for ' list " is ──► " $$', ' m " entries are ≥ 15."
output   when using the default (internal) inputs:
The total for   14 12 15 16 14 15   is ──►  86,  3  entries are ≥ 15.

version 3[edit]

A variation of version 2

/*REXX program generates values for six core attributes for an RPG (Role Playing Game).*/
Do n=1 By 1 until m>=2 & tot>=75;
slist=''
tot=0
m=0
Do 6
sum=0
Do d=1 To 4;
cast.d=random(1,6)
sum=sum+cast.d
End
min=min(cast.1,cast.2,cast.3,cast.4)
sum=sum-min
slist=slist sum
tot=tot+sum
m=m+(sum>=15)
end
Say 'the total for' space(slist) 'is -->' tot', 'm' entries are >= 15.'
end
Say 'Solution found with' n 'iterations'
Output:
I:\>rexx rpg
the total for 12 14 14 13 12 9 is --> 74, 0 entries are >= 15.
the total for 15 11 13 14 10 10 is --> 73, 1 entries are >= 15.
the total for 18 12 12 11 16 10 is --> 79, 2 entries are >= 15.
Solution found with 3 iterations

Ring[edit]

 
# Project  : RPG Attributes Generator
 
load "stdlib.ring"
attributestotal = 0
count = 0
while attributestotal < 75 or count < 2
attributes = []
for attribute = 0 to 6
rolls = []
largest3 = []
for roll = 0 to 4
result = random(5)+1
add(rolls,result)
next
sortedrolls = sort(rolls)
sortedrolls = reverse(sortedrolls)
for n = 1 to 3
add(largest3,sortedrolls[n])
next
rollstotal = sum(largest3)
if rollstotal >= 15
count = count + 1
ok
add(attributes,rollstotal)
next
attributestotal = sum(attributes)
end
showline()
 
func sum(aList)
num = 0
for n = 1 to len(aList)
num = num + aList[n]
next
return num
 
func showline()
line = "(" + attributestotal + ", ["
for n = 1 to len(attributes)
line = line + attributes[n] + ", "
next
line = left(line,len(line)-2)
line = line + "])"
see line + nl
 

Output:

(95, [14, 11, 14, 13, 16, 11, 16])

Scala[edit]

 
import scala.util.Random
Random.setSeed(1)
 
def rollDice():Int = {
val v4 = Stream.continually(Random.nextInt(6)+1).take(4)
v4.sum - v4.min
}
 
def getAttributes():Seq[Int] = Stream.continually(rollDice()).take(6)
 
def getCharacter():Seq[Int] = {
val attrs = getAttributes()
println("generated => " + attrs.mkString("[",",", "]"))
(attrs.sum, attrs.filter(_>15).size) match {
case (a, b) if (a < 75 || b < 2) => getCharacter
case _ => attrs
}
}
 
println("picked => " + getCharacter.mkString("[", ",", "]"))
 
generated => [13,13,12,11,10,14]
generated => [17,12,15,11,9,6]
generated => [16,9,9,11,13,14]
generated => [11,12,10,18,7,17]
picked => [11,12,10,18,7,17]

Visual Basic .NET[edit]

repeats until a successful outcome occurs

Module Module1
 
Dim r As New Random
 
Function getThree(n As Integer) As List(Of Integer)
getThree = New List(Of Integer)
For i As Integer = 1 To 4 : getThree.Add(r.Next(n) + 1) : Next
getThree.Sort() : getThree.RemoveAt(0)
End Function
 
Function getSix() As List(Of Integer)
getSix = New List(Of Integer)
For i As Integer = 1 To 6 : getSix.Add(getThree(6).Sum) : Next
End Function
 
Sub Main(args As String())
Dim good As Boolean = False : Do
Dim gs As List(Of Integer) = getSix(), gss As Integer = gs.Sum,
hvc As Integer = gs.FindAll(Function(x) x > 14).Count
Console.Write("attribs: {0}, sum={1}, ({2} sum, high vals={3})",
String.Join(", ", gs), gss, If(gss >= 75, "good", "low"), hvc)
good = gs.Sum >= 75 AndAlso hvc > 1
Console.WriteLine(" - {0}", If(good, "success", "failure"))
Loop Until good
End Sub
End Module
Output:

sample outputs:

attribs: 8, 15, 10, 13, 12, 8, sum=66, (low sum, high vals=1) - failure
attribs: 9, 11, 7, 10, 17, 12, sum=66, (low sum, high vals=1) - failure
attribs: 18, 14, 12, 11, 16, 9, sum=80, (good sum, high vals=2) - success
attribs: 10, 12, 9, 13, 17, 6, sum=67, (low sum, high vals=1) - failure
attribs: 14, 11, 17, 12, 8, 11, sum=73, (low sum, high vals=1) - failure
attribs: 13, 9, 12, 14, 10, 13, sum=71, (low sum, high vals=0) - failure
attribs: 13, 9, 14, 14, 14, 12, sum=76, (good sum, high vals=0) - failure
attribs: 11, 12, 7, 8, 10, 11, sum=59, (low sum, high vals=0) - failure
attribs: 15, 4, 9, 18, 9, 12, sum=67, (low sum, high vals=2) - failure
attribs: 17, 16, 14, 8, 8, 9, sum=72, (low sum, high vals=2) - failure
attribs: 18, 16, 13, 9, 9, 10, sum=75, (good sum, high vals=2) - success

zkl[edit]

reg attrs=List(), S,N;
do{
attrs.clear();
do(6){
abcd:=(4).pump(List,(0).random.fp(1,7)); // list of 4 [1..6] randoms
attrs.append(abcd.sum(0) - (0).min(abcd)); // sum and substract min
}
}while((S=attrs.sum(0))<75 or (N=attrs.filter('>=(15)).len())<2);
println("Random numbers: %s\nSums to %d, with %d >= 15"
.fmt(attrs.concat(","),S,N));
Output:
Random numbers: 15,15,7,17,10,13
Sums to 77 with 3 >= 15