Method applyPointer

assets/main.js:1151–1159

(event)

  }

  applyPointer(event) {
    const element = document.elementFromPoint(event.clientX, event.clientY);
    if (!element) return;
    const cell = element.closest("[data-index]");
    if (!cell) return;
    const index = Number(cell.dataset.index);
    if (Number.isNaN(index)) return;
    this.paintCell(index, this.activeMode === "erase");
  }

  paintCell(index, erase = false) {
    const row = Math.floor(index / this.cols);