git.r.bdr.sh - rbdr/lissajous/blob - lib/systems/amplitude_adjuster.js

   1 import { System } from '@serpentity/serpentity';
   2 import Ample from '../nodes/ample';
   3 import { settingsContainer, slider } from '../factories/ui';
   4
   5 const internals = {
   6   symbols: {
   7     a: '𝛢',
   8     b: '𝛣',
   9     c: '𝛧'
  10   }
  11 };
  12
  13 export default class AmplitudeAdjuster extends System {
  14
  15   constructor(container) {
  16
  17     super();
  18     this.container = container;
  19   }
  20
  21   added(engine){
  22
  23     this.nodes = engine.getNodes(Ample);
  24     this.adjusterContainer = settingsContainer({
  25       id: 'amplitude-adjuster',
  26       label: 'Amplitude'
  27     });
  28
  29     let i = 0;
  30     for (const node of this.nodes) {
  31       const nodeElement = settingsContainer({
  32         id: `amplitude-adjuster-${i}`,
  33         label: `ɣ${i + 1}`,
  34         level: 3
  35       });
  36
  37       ['a', 'b', 'c'].forEach(key => {
  38         nodeElement.appendChild(slider({
  39           id: `amplitude-adjuster-${i}-slider-${key}`,
  40           min: '0',
  41           max: '1',
  42           step: '0.01',
  43           label: internals.symbols[key],
  44           className: `amplitude`,
  45           get: () => node.amplitude[key].toString(),
  46           set: (value) => (node.amplitude[key] = parseFloat(value))
  47         }));
  48       });
  49
  50       this.adjusterContainer.appendChild(nodeElement);
  51       ++i;
  52     }
  53
  54     this.container.appendChild(this.adjusterContainer);
  55   }
  56
  57   removed(){
  58
  59     this.container.removeChild(this.adjusterContainer);
  60     delete this.adjusterContainer;
  61     delete this.nodes;
  62   }
  63
  64   update(){}
  65 };