plusequals.js

/*

output += input

*/

import {
  Hunkify,
  Input,
  Output,
  State
} from '../hunks.js'

export default function PlusEquals() {
  Hunkify(this)

  let internalValue = 0
  let hasUpdate = false

  let resetLine = new Input('boolean', 'reset', this)
  let input = new Input('number', 'plus', this)
  this.inputs.push(resetLine, input)

  let output = new Output('number', 'equals', this)
  this.outputs.push(output)

  let reset = new State('boolean', 'reset', false)
  reset.onChange = (value) => {
    internalValue = 0
  }
  this.states.push(reset)

  this.init = () => {
    //
  }

  this.loop = () => {
    if(resetLine.io()){
      resetLine.get()
      internalValue = 0
    }
    if(input.io()){
      internalValue += input.get()
      hasUpdate = true
    }
    if(!output.io() && hasUpdate){
      output.put(internalValue)
      hasUpdate = false
    }
  }
}