INNER CODE UNIT · TypeScript

onMouseClick

jamesroutley/24a2 · src/engine.ts:379

    function onMouseClick(this: CanvasIOManager, event: MouseEvent) {
      if (!this._dotClicked) {
        return;
      }
      const rect = this._canvas.getBoundingClientRect();

      // cx and cy are the x y coordinates of the mouse click relative to the
      // canvas
      const cx = event.clientX - rect.left;
      const cy = event.clientY - rect.top;

      const offset = this._dotSize + this._gapSize;
      // Iterate over all dot locations, and check whether the distance
      // between the click and the dot centre is less than the dot's
      // radius
      for (let y = 0; y < this._gridHeight; y++) {
        for (let x = 0; x < this._gridWidth; x++) {
          const dx = this._dotSize / 2 + x * offset;

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