Method setRegion

src/BitMatrix.ts:27–33

(left: number, top: number, width: number, height: number, v: boolean)

  }

  public setRegion(left: number, top: number, width: number, height: number, v: boolean) {
    for (let y = top; y < top + height; y++) {
      for (let x = left; x < left + width; x++) {
        this.set(x, y, !!v);
      }
    }
  }
}