export function createTraceBuffer(maxPoints = 1200) {
  return {
    maxPoints,
    points: [],
  };
}

export function pushTrace(trace, point) {
  trace.points.push({ x: point.x, y: point.y });
  if (trace.points.length > trace.maxPoints) {
    trace.points.splice(0, trace.points.length - trace.maxPoints);
  }
}

export function clearTrace(trace) {
  trace.points.length = 0;
}