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Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

HTML

            
              
            
          
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CSS

            
              body{
  margin:0;
}
            
          
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JS

            
              var lBlobs=[];
var numLBlobs=10;
var disturbers=[];
var numDisturbers=10;
var disturbLen=100;
var disturbA=0
var ox=0, oy=0;
var wp;
var ts=200;


function setup() {
  createCanvas(windowWidth, windowHeight);
  disturbLen=height/6;
  var offX=width/2-8*height/25;
  var offY=height/2-8*height/25;
  for(var j=0; j<16; j++){
    for(var i=0; i<16; i++){
      lBlobs.push(new LiquidBlob(offX+j*height/25, offY+i*height/25, height/25, 0.1, 0.95));
    }
  }
  colorMode(HSB);
}

function updateDisturbers(){
  for(var i=0; i<numDisturbers; i++){
    disturbers[i]={
      x:mouseX+cos(disturbA+TWO_PI/numDisturbers*i)*disturbLen/2,
      y:mouseY+sin(disturbA+TWO_PI/numDisturbers*i)*disturbLen/2
    };
  }
}

function draw() {
  background(20);
  lBlobs.forEach(function(lBlob){
    lBlob.show();
  });
  disturbA+=0.01;
  updateDisturbers();
  textAlign(CENTER);
  textSize(height/16);
  fill(30,80,100,0.4);
  noStroke();
  text("move mouse over the cells",width/2, height*0.85);
}

function mouseMoved(){
  ox=width/2+(mouseX-width/2)*2;
  oy=mouseY;
}

function LiquidBlob(x,y,r,s,d){
  var cells=[];
  var numCells=20;
  var verts=[];
  
 for(var i=0; i<numCells; i++){
    // cells[i]=new Cell(i*width/numCells,y+(y-r),s,d);
    cells[i]=new Cell(i, x+cos(TWO_PI*i/numCells)*r, y+sin(TWO_PI*i/numCells)*r, s, d);
    if(i>0){
      cells[i].prevCell=cells[i-1];
      cells[i].setPrevDist();
      cells[i-1].nextCell=cells[i];
      cells[i-1].setNextDist();
    }
  }
  cells[numCells-1].nextCell=cells[0];
  cells[numCells-1].setNextDist();
  cells[0].prevCell=cells[numCells-1];
  cells[0].setPrevDist();
  
  this.show=function(){
    verts=[];
    var velAgg=0;
    cells.forEach(function(cell){
      // cell.show();
      // cell.repel();
      cell.repelMany();
      cell.neighbourTension();
      cell.run();
      verts.push(cell.getVertex());
      velAgg+=cell.getVertex().v;
    });
    var velMean=velAgg/cells.length;
    stroke(100*velMean,100,100,0.5-0.25*velMean);
    strokeWeight(0.5+velMean*10);
    noFill();
    beginShape();
    verts.forEach(function(v){
      vertex(v.x, v.y);
    });
    endShape(CLOSE);
  };
}

function Cell(id,x,y, s, d){
  var stiffness=s;
  var decay=d;
  var maxDist=25;
  var repelStiffness=0.01;
  var origin=createVector(x,y);
  var pos=createVector(0,0);
  var vel=createVector(0,0);
  var velMax=maxDist*stiffness;
  var absPos=origin.copy();
  var repel=createVector(0,0);
  var repelMag=maxDist;
  var acc=createVector(0,0);
  var zero=createVector(0,0);
  
  
  this.prevCell=null;
  this.nextCell=null;
  var prevDist=0;
  var nextDist=0;
  var neighbourStiffness=s/10;
  var prevTension=createVector(0,0);
  var nextTension=createVector(0,0);
  
  this.setNextDist=function(){
    nextDist=p5.Vector.sub(absPos, this.nextCell.getPos()).mag();
  };
  
  this.setPrevDist=function(){
    prevDist=p5.Vector.sub(absPos, this.prevCell.getPos()).mag();
  };
  
  this.getPos=function(){
    return absPos;
  }
  
  this.show=function(){
    noStroke();
    push();
    translate(origin.x, origin.y);
    translate(pos.x, pos.y);
    fill(0,100,100,1);
    ellipse(0,0,5);
    pop();
  };
  
  this.repel=function(){
    repel=p5.Vector.sub(absPos,createVector(mouseX, mouseY));
    repelMag=repel.mag();
    if(repelMag<maxDist){
      repel.mult((maxDist-repelMag)*repelStiffness);
    } else {
      repelMag=maxDist;
      repel.mult(0);
    }
  };
  
  this.repelMany=function(){
    repel.mult(0);
    disturbers.forEach(function(d){
      var repelThis=p5.Vector.sub(absPos,createVector(d.x, d.y));
      repelMag=repelThis.mag();
      if(repelMag<maxDist){
        repelThis.mult((maxDist-repelMag)*repelStiffness);
      } else {
        repelMag=maxDist;
        repelThis.mult(0);
      }
      repel.add(repelThis);
    });
  }
  
  this.neighbourTension=function(){
    var prevTarget=p5.Vector.sub(absPos, this.prevCell.getPos());
    prevTarget.setMag(prevDist).add(this.prevCell.getPos());
    prevTension=p5.Vector.sub(prevTarget, absPos);
    var prevDistNow=prevTension.mag();
    // if(id===0) console.log(id+" "+prevDistNow);
    if(prevDistNow>0){
      prevTension.mult(neighbourStiffness);
    } else {
      prevDistNow=0;
      prevTension.mult(0);
    }
    
    var nextTarget=p5.Vector.sub(absPos, this.nextCell.getPos());
    nextTarget.setMag(nextDist).add(this.nextCell.getPos());
    nextTension=p5.Vector.sub(nextTarget, absPos);
    var nextDistNow=nextTension.mag();
    // if(id===0) console.log(id+" "+prevDistNow);
    if(nextDistNow>0){
      nextTension.mult(neighbourStiffness);
    } else {
      nextDistNow=0;
      nextTension.mult(0);
    }
  }
  
  function runPrevTension(){
    
  }
  
 
  this.run=function(){
    acc.add(p5.Vector.sub(zero,pos).mult(stiffness));
    acc.add(repel);
    acc.add(nextTension);
    acc.add(prevTension);
    vel.add(acc);
    vel.mult(decay);
    pos.add(vel);
    acc.mult(0);
    absPos=p5.Vector.add(origin, pos);
  };
  
  this.getVertex=function(){
    return {
      x:absPos.x,
      y:absPos.y,
      v:vel.mag()/velMax
    };
  };
}

            
          
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999px

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