Function updateMotionPathPointInScript

packages/parsers/src/gsapParser.ts:2906–2940

(
  script: string,
  animationId: string,
  pointIndex: number,
  point: { x: number; y: number },
)

 * out of range.
 */
export function updateMotionPathPointInScript(
  script: string,
  animationId: string,
  pointIndex: number,
  point: { x: number; y: number },
): string {
  const loc = locateAnimation(script, animationId);
  if (!loc) return script;

  const anim = loc.target.animation;
  if (!anim.arcPath?.enabled) return script;

  const waypoints = extractArcWaypoints(anim);
  if (pointIndex < 0 || pointIndex >= waypoints.length || waypoints.length < 2) return script;

  const nextWaypoints = waypoints.map((wp, i) =>
    i === pointIndex ? { x: point.x, y: point.y } : wp,
  );

  const motionPathCode = buildMotionPathObjectCode({
    waypoints: nextWaypoints,
    segments: anim.arcPath.segments,
    autoRotate: anim.arcPath.autoRotate,
  });

  const varsArg = loc.target.call.varsArg;
  const existingProp = varsArg.properties.find(
    (p: AstNode) => isObjectProperty(p) && propKeyName(p) === "motionPath",
  );
  if (existingProp) {
    existingProp.value = parseExpr(motionPathCode);
  }

  return recast.print(loc.parsed.ast).code;
}

/** True when any segment carries explicit cubic control points. Add/remove are
 *  restricted to curviness (non-cubic) paths — synthesizing control points for