MCxOSC/mainFunctions.js at master · dewiweb/MCxOSC · GitHub

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const {dialog} = require('electron');
const fs = require('fs');

module.exports = {
  //copied from https://github.com/jean-emmanuel/open-stage-control/blob/master/src/client/widgets/utils.js

  clip: function(value,range) {

    value = parseFloat(value)

    if (isNaN(value)) value = range[0]

    return Math.max(Math.min(range[0], range[1]), Math.min(value, Math.max(range[0], range[1])))
  },
  // map a value from a scale to another
  //     value: number
  //     rangeIn: [number, number]
  //     rangeOut: [number, number]
  //     decimals: number (-1 to bypass)
  //     log: true, or manual log scale (max log value)
  //     revertLog: boolean

  mapToScale: function(value, rangeIn, rangeOut, decimals, log, revertlog) {

      // clip in
      value = module.exports.clip(value,[rangeIn[0], rangeIn[1]])


      // normalize
      value = (value - rangeIn[0]) / (rangeIn[1] - rangeIn[0])

      // log scale
      if (log) {

          var logScale = revertlog ? Math.abs(rangeIn[1] - rangeIn[0]) :
                          Math.abs(rangeOut[1] - rangeOut[0])

          if (log !== true && log !== -1) logScale = Math.abs(log)
          else if (logScale >= 100) logScale /= 10
          else logScale = Math.max(logScale, 10)

          if (log < 0) revertlog = !revertlog

          value = revertlog ?
              Math.log(value * (logScale - 1) + 1) / Math.log(logScale) :
              Math.pow(logScale, value) / (logScale - 1) - 1 / (logScale - 1)

      }

      // scale out
      value = value * (rangeOut[1] - rangeOut[0]) + rangeOut[0]

      // clip out
      value = module.exports.clip(value, [rangeOut[0], rangeOut[1]])

      // decimals
      if (decimals !== -1) value = parseFloat(value.toFixed(decimals))

      return value

  },

  oscToEmber: function(oscBundle) {
    let oscArgs = JSON.stringify(oscBundle.args);
    oscArgs = oscArgs.replace(/\s|\[|\]/g,"");
    oscArgs = JSON.parse(oscArgs);
    oscArgs = oscArgs.value;
    oscArgs = Number(oscArgs);
    return oscArgs
  },

  embChPath: function(chNumb) {
    let eChPath = 'Channels.Inputs.INP   ';
    eChPath = eChPath.concat(chNumb.toString());
    return eChPath
  },

  embFadLevPath: function(eChPath) {
    let eFadLevPath = eChPath.concat('.Fader.Fader Level');
    return eFadLevPath
  },

  pathToAddress: function(path) {
    let oscAddress = path.replace(/\./g,'/');
    slash = "/";
    oscAddress = slash.concat(oscAddress);
    return oscAddress
  },

  addressToPath: function(address) {
    let path = address.replace(/\//g, '.');
    path = path.slice(1);
    return path
  }
}