Simple Circle Packing

function setup(){

  createCanvas(windowWidth, windowHeight)

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  circles = []

  packCircles(50000)

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  background(0)

  stroke(255)

  noFill()

  drawCircles()

  noLoop()

}

​

function packCircles(N){

  for(let n = 0; n < N; n++){

    let randX = random(windowWidth)

    let randY = random(windowHeight)

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    let s = random(5,100)

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    let placeable = true

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    for(let k = 0; k < circles.length; k++){

      let otherC = circles[k]

      let d = dist(randX, randY, otherC.x, otherC.y)

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      if(d < otherC.s/2 + s/2+2){

        placeable = false

        break

      }

    }

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    if(placeable){

      circles.push({x: randX, y: randY, s: s})

    }

  }

}

​

function drawCircles(){

  for(let n = 0; n < circles.length; n++){

    let currC = circles[n]

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    ellipse(currC.x, currC.y, currC.s)

  }

}

​