A 140byt.es gist to generate a simulated dice pool.
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Dice Pool 140
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| function(n,s,x,v){ // variable n is the number of dice to roll, s is number of sides, x is success value, v is number of successes to start with | |
| for(i=0;i<n;i++){ // begin rolling loop | |
| r=0|(Math.random()*s)%s+1; // "roll" a single die | |
| if(r>=x){ // compare the result to the success value | |
| v++; // if a success, increment the counter | |
| } | |
| } | |
| return v; // output the number of successes | |
| } |
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| function(n,s,x,v){for(i=0;i<n;i++){r=0|(Math.random()*s)%s+1;if(r>=x){v++;}}return v;} |
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| DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE | |
| Version 2, December 2004 | |
| Copyright (C) 2011 Ben Overmyer <www.manatrance.com> | |
| Everyone is permitted to copy and distribute verbatim or modified | |
| copies of this license document, and changing it is allowed as long | |
| as the name is changed. | |
| DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE | |
| TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION | |
| 0. You just DO WHAT THE FUCK YOU WANT TO. |
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| { | |
| "name": "dicePool", | |
| "description": "Generate a simulated dice pool.", | |
| "keywords": [ | |
| "dice", | |
| "random", | |
| "rpg" | |
| ] | |
| } |
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| <!DOCTYPE html> | |
| <title>Dice Pool Roller</title> | |
| <script> | |
| var diceRoll = function(n,s,x,v){for(i=0;i<n;i++){var r=0|(Math.random()*s)%s+1;if(r>=x){v++;}}return v;} | |
| console.log(diceRoll(12,6,4,0)); | |
| console.log(diceRoll(18,6,4,0)); | |
| </script> |
At least combine the var-statements: var x=1,y=0,...;
The Byte-Saving Techniques https://github.com/jed/140bytes/wiki/Byte-saving-techniques would help.
@atk - I'm curious, how does this part of your version work?
v+=(1+(0|Math.random()*s))>x;
There's no IF in there anywhere.... some kind of shorthand I'm missing?
The answer is: Coercion. Let us dissect the corresponding part:
1+(0|Math.random()*s) generates a floored Number between 1 and s (0| coerces the float-points produced by Math.random() to integer).
...>x compares the resulting number with x and returns true if bigger and false if smaller - at this point we have a boolean.
v+=... adds the expression to v, coercing true to 1 and false to 0 - only if the result is bigger, v gets incremented.
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Feel free to take it. If you have any question, feel free to ask - we're a pretty helpful bunch here ;-)