sbrl/mutate-a-word
sbrl/mutate-a-word
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mutate: add 10% change of adding and 10% of removing

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This commit is contained in:
Starbeamrainbowlabs 2022-02-02 01:53:27 +00:00
parent ec58e75d83
commit 277b500f21
Signed by: sbrl
GPG key ID: 1BE5172E637709C2
1 changed files with 33 additions and 17 deletions
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50
js/mutate.mjs
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@ -8,26 +8,42 @@ function random_item(arr) {
}
export default function(word) {
console.log(`***** MUTATE *****`)
const chars = word.toLowerCase().split("");
const targetpos = Math.floor(Math.random() * word.length);
const targetchar = chars[targetpos];
console.log("TARGET", targetchar, "POS", targetpos);
let pool = consonants.concat(vowels);
if(vowels.includes(targetchar))
pool = vowels;
if(consonants.includes(targetchar))
pool = consonants;
pool = [...pool]; // Shallow copy to avoid splice mutating the original array
console.log("POOL BEFORE", pool);
if(pool.includes(targetchar)) {
console.log("REMOVING TARGET");
pool.splice(pool.indexOf(targetchar), 1);
let mode = "replace";
if(Math.random() < 0.1) mode = "add";
if(Math.random() > 0.9) mode = "remove";
switch(mode) {
case "replace":
const targetchar = chars[targetpos];
console.log("TARGET", targetchar, "POS", targetpos);
let pool = consonants.concat(vowels);
if(vowels.includes(targetchar))
pool = vowels;
if(consonants.includes(targetchar))
pool = consonants;
pool = [...pool]; // Shallow copy to avoid splice mutating the original array
console.log("POOL BEFORE", pool);
if(pool.includes(targetchar)) {
console.log("REMOVING TARGET");
pool.splice(pool.indexOf(targetchar), 1);
}
console.log("POOL AFTER", pool);
let newchar = random_item(pool);
chars.splice(targetpos, 1, newchar);
break;
case "add":
chars.splice(targetpos, 0, random_item(consonants.concat(vowels)));
break;
case "remove":
chars.splice(targetpos, 1);
break;
}
console.log("POOL AFTER", pool);
let newchar = random_item(pool);
chars.splice(targetpos, 1, newchar);
return chars.join("");
}