Modulaser out of bounds code

points.ts

export function streamFrame(_points: Point[]) {
  // TODO: dunno how expensive this function call is but it could be done less
  const applyPerspective = dacConfig.projectionMap
    ? projectionMap(dacConfig.projectionMap)
    : DEFAULT_PROJECTION_MAP;

  let blankedPrevious = false;

  scene.points = _points.reduce((acc: Point[], p: Point) => {
    let { x, y } = p;
    const { r, g, b } = p;

    const outOfBounds =
      dacConfig.blankOutOfBounds && (x < 0 || x > 1 || y < 0 || y > 1);

    if (outOfBounds && blankedPrevious) {
      // Skip if already blanked previous and still out of bounds.
      return acc;
    }

    if (dacConfig.blankOutOfBounds) {
      x = Math.max(Math.min(x, 1), 0);
      y = Math.max(Math.min(y, 1), 0);
    }
    const coordinates = applyPerspective(x, y);
    x = Math.max(Math.min(coordinates[0], 1), 0);
    y = Math.max(Math.min(coordinates[1], 1), 0);

    if (outOfBounds) {
      // Add wait before laser goes off.
      for (let index = 0; index < 8; index++) {
        acc.push({ x, y, r, g, b });
      }
      blankedPrevious = true;
      return acc;
    }

    if (blankedPrevious) {
      // Add blanking points on new coordinates.
      for (let index = 0; index < 20; index++) {
        acc.push({ x, y, r: 0, g: 0, b: 0 });
      }
    }
    acc.push({ x, y, r, g, b });
    blankedPrevious = false;
    return acc;
  }, []);
}