App.js

const animate = () => {
  let start = sequence.segments[0];
  let stop = sequence.segments[1];
   
  // here
  if (stop === 1 || stop === 90) {
    start = 0;
    stop = 45;
  } else {
    start = 45;
    stop = 90;
  }
  
  setSequence({ 
    segments: [start, stop],
    forceFlag: true
  })
}