在线学html5,HTML5 在线学习自我演进的导弹系统

JavaScript

语言：

JaveScriptBabelCoffeeScript

确定

var population;

var lifespan = 400;

var lifeP;

var count = 0;

var target;

var maxforce = 0.2;

var rx = 100;

var ry = 150;

var rw = 200;

var rh = 10;

function setup() {

createCanvas(400, 300);

rocket = new Rocket();

population = new Population();

lifeP = createP();

target = createVector(width / 2, 50);

}

function draw() {

background(0);

population.run();

lifeP.html(count);

count++;

if (count == lifespan) {

population.evaluate();

population.selection();

//population = new Population();

count = 0;

}

fill(255);

rect(rx, ry, rw, rh);

ellipse(target.x, target.y, 16, 16);

}

function Population() {

this.rockets = [];

this.popsize = 25;

this.matingpool = [];

for (var i = 0; i < this.popsize; i++) {

this.rockets[i] = new Rocket();

}

this.evaluate = function() {

var maxfit = 0;

for (var i = 0; i < this.popsize; i++) {

this.rockets[i].calcFitness();

if (this.rockets[i].fitness > maxfit) {

maxfit = this.rockets[i].fitness;

}

}

console.log(this.rockets);

for (var i = 0; i < this.popsize; i++) {

this.rockets[i].fitness /= maxfit;

}

this.matingpool = [];

for (var i = 0; i < this.popsize; i++) {

var n = this.rockets[i].fitness * 100;

for (var j = 0; j < n; j++) {

this.matingpool.push(this.rockets[i]);

}

}

}

this.selection = function() {

var newRockets = [];

for (var i = 0; i < this.rockets.length; i++) {

var parentA = random(this.matingpool).dna;

var parentB = random(this.matingpool).dna;

var child = parentA.crossover(parentB);

child.mutation();

newRockets[i] = new Rocket(child);

}

this.rockets = newRockets;

}

this.run = function() {

for (var i = 0; i < this.popsize; i++) {

this.rockets[i].update();

this.rockets[i].show();

}

}

}

function DNA(genes) {

if (genes) {

this.genes = genes;

} else {

this.genes = [];

for (var i = 0; i < lifespan; i++) {

this.genes[i] = p5.Vector.random2D();

this.genes[i].setMag(maxforce);

}

}

this.crossover = function(partner) {

var newgenes = [];

var mid = floor(random(this.genes.length));

for (var i = 0; i < this.genes.length; i++) {

if (i > mid) {

newgenes[i] = this.genes[i];

} else {

newgenes[i] = partner.genes[i];

}

}

return new DNA(newgenes);

}

this.mutation = function() {

for (var i = 0; i < this.genes.length; i++) {

if (random(1) < 0.01) {

this.genes[i] = p5.Vector.random2D();

this.genes[i].setMag(maxforce);

}

}

}

}

function Rocket(dna) {

this.pos = createVector(width / 2, height);

this.vel = createVector();

this.acc = createVector();

this.completed = false;

this.crashed = false;

if (dna) {

this.dna = dna;

} else {

this.dna = new DNA();

}

this.fitness = 0;

this.applyForce = function(force) {

this.acc.add(force);

}

this.calcFitness = function() {

var d = dist(this.pos.x, this.pos.y, target.x, target.y);

this.fitness = map(d, 0, width, width, 0);

if (this.completed) {

this.fitness *= 10;

}

if (this.crashed) {

this.fitness /= 10;

}

}

this.update = function() {

var d = dist(this.pos.x, this.pos.y, target.x, target.y);

if (d < 10) {

this.completed = true;

this.pos = target.copy();

}

if (this.pos.x > rx && this.pos.x < rx + rw && this.pos.y > ry && this.pos.y < ry + rh) {

this.crashed = true;

}

if (this.pos.x > width || this.pos.x < 0) {

this.crashed = true;

}

if (this.pos.y > height || this.pos.y < 0) {

this.crashed = true;

}

this.applyForce(this.dna.genes[count]);

if (!this.completed && !this.crashed) {

this.vel.add(this.acc);

this.pos.add(this.vel);

this.acc.mult(0);

this.vel.limit(4);

}

}

this.show = function() {

push();

noStroke();

fill(255, 150);

translate(this.pos.x, this.pos.y);

rotate(this.vel.heading());

rectMode(CENTER);

rect(0, 0, 25, 5);

pop();

}

}