rojs/lib/util/scanner.ts

// Reads data in little-endian format
export default class DataScanner {
  offset: number;
  view: DataView;

  constructor(data: DataView | ArrayBuffer) {
    this.offset = 0;
    this.view = data instanceof DataView ? data : new DataView(data);
  }

  float32(): number {
    const x = this.view.getFloat32(this.offset, true);
    this.offset += 4;
    return x;
  }

  uint8(): number {
    return this.view.getUint8(this.offset++);
  }

  uint32(): number {
    const x = this.view.getUint32(this.offset, true);
    this.offset += 4;
    return x;
  }
}