Question

我正在研究遗传算法的这段代码，但是当我运行此代码时，我会在绘制函数后立即收到意外的EOF错误。

SyntaxError：预期的eof但是找到了}

我不是很擅长javascript所以我不知道我是否犯了一个愚蠢的错误或其他什么。它似乎工作正常，直到我改变了什么？我不知道，但它不再起作用，也许我只是没有看到它......

var population;
var lifespan = 200;
var lifeP;
var count = 0;

function setup() {
  createCanvas(400,300);
  rocket = new Rocket();
  population = new Population();
  lifeP = createP();
}

function draw() {
  background(0); 
  population.run();
  lifeP.html(count);
  count++;
}

function Population() {
 this.rockets = [];
 this.popsize = 25;


 for(var i = 0; i < this.popsize; i++){
  this.rockets[i] = new Rocket(); 
 }

 this.run = function() {
   for(var i = 0; i < this.popsize; i++){
    this.rockets[i].update();
    this.rockets[i].show();
   }
 }
}


function DNA(){
 this.genes = [];
 for (var i = 0; i < lifespan; i++){
   this.genes[i] = p5.Vector.random2D();
   this.genes[i].setMag(0.1);
 }
}

function Rocket(){
 this.pos = createVector(width/2, height);
 this.vel = createVector();
 this.acc = createVector();
 this.dna = new DNA();;
 this.applyForce = function(force){
  this.acc.add(force);   
 }

 this.update = function(){
  this.applyForce(this.dna.genes[count]);

  this.vel.add(this.acc);
  this.pos.add(this.vel);
  this.acc.mult(0);
 }

 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();
 }


}

Answer 1

你的火箭课应该是这样的：

＆＃13;

function Rocket(){
 this.pos = createVector(width/2, height);
 this.vel = createVector();
 this.acc = createVector();
 this.dna = new DNA();
 this.applyForce = function(force){
  this.acc.add(force);   
 }

 this.update = function(){
  this.applyForce(this.dna.genes[count]);

  this.vel.add(this.acc);
  this.pos.add(this.vel);
  this.acc.mult(0);
 }

 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();
 }
}

＆＃13;

但是下一次，请在编辑器中检查您的代码 jsfiddle并且不会发送垃圾邮件堆栈溢出

JS中出现意外的EOF错误

1 个答案: