Physarum Polycephalum Pt.2

How do single cell organisms coordinate sophisticated behaviors?

Plan

p5 - Nutrient

//user can use mouse-click to place blue dots.
//yellow dot will build the optimized network connecting all blue dots

//define Slime array & network array
var nutrients = [];
function setup() {
  createCanvas(800, 800);
}

//place Nutrient when user press mouse
function mousePressed() {
 var n = new Nutrient(mouseX,mouseY,5);
  nutrients.push(n);
}

function draw() {
    background(220);
  
    // nutrients
    for (i=0; i<nutrients.length; i++) {
    nutrients[i].display();
    }
}

//Nutrient
function Nutrient (x,y,m) {
  
  //pos,vel,acc,mass (Just in case for later use)
  this.pos = createVector(x,y);
  this.vel = createVector(0,0);
  this.acc = createVector(0,0);
  this.mass = m;
  
  // color,shape of Nutrient
  this.display = function() {
  fill(0,0,255); 
  ellipse(this.pos.x,this.pos.y,this.mass,this.mass); 
  }
}

p5 - Mold (Random Walker)

//create Array of slimes
var slimes = []

function setup() {
  createCanvas(800, 800);

  background(220);
  for (let i = 0; i < 36; i++) {
    slimes[i] = new Slime(width / 2, height / 2, 0.5);
  }
  
  //make slimes to leave the trail
  for (let i = 0; i < 36; i++) {
    slimes[i].display();
  }
}

function draw() {
  for (let i = 0; i < 36; i++) {
    slimes[i].display();
    slimes[i].update();
  }
}

function Slime(x, y, m) {
  //set up pos,vel,acc,mass
  this.pos = createVector(x, y);
  this.vel = createVector(0, 0);
  this.acc = createVector(0, 0);
  this.mass = m;

  //display (color, ellipse)
  this.display = function() {
    noStroke();
    fill(0);
    ellipse(this.pos.x, this.pos.y, this.mass);
  }

  this.update = function() {
    this.vel.add(this.acc);
    this.pos.add(this.vel);
    this.acc.set(0, 0);

    //Movement of Slimes
    var movement = p5.Vector.random2D();
    movement.mult(1.2);
    this.pos.add(movement);
  }
}