let amount = 100;

let edgeBuffer = -2;

let gridSize = 2;

​

function outOfBorder(x,y,size){

  if(x > width + edgeBuffer || x < -edgeBuffer || y > height + edgeBuffer || y < - edgeBuffer){

    return true 

  }else{

    return false

  }

}

​

​

function setup() {

  createCanvas(400, 400);

  //init the grid

  initGrid(gridSize,gridSize);

  for(let i = 0; i < amount; i++){

    let x = random(width);

    let y = random(height);

    let cell = locateCell(createVector(x,y));

    let p = new particle(x,y,cell);

    append(particles,p);

  }

}

​

​

function draw() {

  background(220);

  //draw the grid

  //drawGrid();

  for(let particle of particles){

    particle.update();

    particle.show();

    //find cell in grid

    let cell = locateCell(particle.pos); 

    if(particle.curCell != cell){

      particle.updateCell(cell);

    }

  }

  //fps 

  textSize(15);

  stroke(255);

  fill(0);

  let fps = frameRate().toFixed(2);

  text("FPS: "+fps,width-90,20);

}

​

​

​