//

// Generative Gestaltung – Creative Coding im Web

// ISBN: 978-3-87439-902-9, First Edition, Hermann Schmidt, Mainz, 2018

// Benedikt Groß, Hartmut Bohnacker, Julia Laub, Claudius Lazzeroni

// with contributions by Joey Lee and Niels Poldervaart

// Copyright 2018

//

// http://www.generative-gestaltung.de

//

// Licensed under the Apache License, Version 2.0 (the "License");

// you may not use this file except in compliance with the License.

// You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0

// Unless required by applicable law or agreed to in writing, software

// distributed under the License is distributed on an "AS IS" BASIS,

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

// See the License for the specific language governing permissions and

// limitations under the License.

​

/**

 * noise values (noise 3d) are used to animate a bunch of agents.

 *

 * KEYS

 * 1-2                 : switch noise mode

 * space               : new noise seed

 * backspace           : clear screen

 * s                   : save png

 */

'use strict';

​

var sketch = function(p) {

​

  var agents = [];

  var agentCount = 4000;

  var noiseScale = 100;

  var noiseStrength = 10;

  var noiseZRange = 0.4;

  var noiseZVelocity = 0.01;

  var overlayAlpha = 10;

  var agentAlpha = 90;

  var strokeWidth = 0.3;

  var drawMode = 1;

​

  p.setup = function() {

    p.createCanvas(p.windowWidth, p.windowHeight);

​

    for (var i = 0; i < agentCount; i++) {

      agents[i] = new Agent(noiseZRange);

    }

  };

​

  p.draw = function() {

    p.fill(255, overlayAlpha);

    p.noStroke();

    p.rect(0, 0, p.width, p.height);

​

    // Draw agents

    p.stroke(0, agentAlpha);

    for (var i = 0; i < agentCount; i++) {

      if (drawMode == 1) {

        agents[i].update1(strokeWidth, noiseScale, noiseStrength, noiseZVelocity);

      } else {

        agents[i].update2(strokeWidth, noiseScale, noiseStrength, noiseZVelocity);

      }

    }

  };

​

  p.keyReleased = function() {

    if (p.key == 's' || p.key == 'S') p.saveCanvas(gd.timestamp(), 'png');

    if (p.key == '1') drawMode = 1;

    if (p.key == '2') drawMode = 2;

    if (p.key == ' ') {

      var newNoiseSeed = p.floor(p.random(10000));

      console.log('newNoiseSeed', newNoiseSeed);

      p.noiseSeed(newNoiseSeed);

    }

    if (p.keyCode == p.DELETE || p.keyCode == p.BACKSPACE) p.background(255);

  };

​

};

​

var myp5 = new p5(sketch);

​