Design, tech, engineering and science. Head of Design and User Research.
Public
Edited
Sep 28, 2024
__killSwitch = 120
maxStorage = 0 // Only x amount of generations will be kept. Leave as 0 to keep all
finalGeneration = 100
mutable generations = []
bestGeneration = generations[0]
mutable currentGenerationIndex = 0
mutable stopped = false
function start(numberOfGenerations) {
// i will always start from zero
for (let j = 0; j < __killSwitch; ++j) {
// Only run if plug has not been pulled
if (mutable stopped) {
break;
}
// This is where the generation will be bred
const i = mutable currentGenerationIndex;
const value = breed(i);
const fitness = evaluate(i, value);
// Keep generation data for later
const k = 0; // FIXME: must new position in sorted array
// let k = findBy(mutable generations, ({ f }) => { f < fitness })
if (k < 0) {
k = mutable generations.length;
}
if (!maxStorage || k < maxStorage - 1) {
mutable generations.splice(k, 0, {
i,
value,
fitness
});
// Only keep the most valuable generations
if (maxStorage && mutable generations.length > maxStorage) {
mutable generations = mutable generations.slice(0, maxStorage);
}
}
// See if we still need to continue
if (isDone() || i >= finalGeneration) {
break;
}
// Loop will continue
mutable currentGenerationIndex++;
}
return mutable currentGenerationIndex;
}
function stop () {
mutable stopped = true
}
function reset () {
stop()
mutable generations = []
mutable currentGenerationIndex = 0
}
function evaluate (generationIndex) {}
function isDone () {
return false
}
function select (i, previousGenerations) {
return previousGenerations
}
function breed (i, selected) {
return selected.length ? selected[selected.length] : null
}
function mutate (i, generation) {
return generation
}
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