constructor(x=0, y=0, state=0) {

    this.setPosition(x, y);

    this.setState(state);

  }

  setPosition(x, y) {

    this.x = x;

    this.y = y;

  }

  setState(state) {

    this.state = state;

  }

}

​

class Grid {

  constructor(columns, rows, scale) {

    this.dimensions = [columns, rows];

    this.squareSide = scale;

    this.blank();

  }

  blank() {

    this.cells = [];

    for (let x = 0; x < this.dimensions[0]; x++) {

      this.cells.push([]);

      for (let y = 0; y < this.dimensions[1]; y++) {

        this.cells[x].push(new Cell(x, y));

      }

    }

  }

  show() {

    let currentCell;

    stroke(80);

    strokeWeight(2);

    for (let x = 0; x < this.dimensions[0]; x++) {

      for (let y = 0; y < this.dimensions[1]; y++) {

        currentCell = this.cells[x][y];

        fill(255 - currentCell.state * 255);

        rect(currentCell.x * this.squareSide, currentCell.y * this.squareSide, this.squareSide, this.squareSide);

      }

    }

  }

  update() {

    let

      neighborsStates,

      aliveNeighbors;

    for (let x = 0; x < this.dimensions[0]; x++) {

      for (let y = 0; y < this.dimensions[1]; y++) {

        neighborsStates = this.neighborsStates(x, y);

        aliveNeighbors = 0;

        for (let i = 0; i < neighborsStates.length; i++) {

          //if (neighborsStates[i]) aliveNeighbors++;

        }

        if (aliveNeighbors > 2 || aliveNeighbors < 3) this.setCellState(x, y, 1);

        else this.setCellState(x, y, 0);

        print();

      }

    }

  }

  neighborsStates(x, y) {

    let states = [];

    for (let dx = -1; dx < 2; dx++) {

      for (let dy = -1; dy < 2; dy++) {

        if (x + dx > 0 && y + dy > 0 && x + dx < this.dimensions[0] && y + dy < this.dimensions[1] && (dx !== 0 || dy !== 0)) states.push(this.cells[x + dx][y + dy].state);

      }

    }

    return states;

  }

  detectCellHovered() {

    return [floor(mouseX / this.squareSide), floor(mouseY / this.squareSide)];

  }

  getCellState(x, y) {

    return this.cells[x][y].state;

  }

  setCellState(x, y, state) {

    this.cells[x][y].state = state;

  }

  toggleCellState(x, y) {

    this.cells[x][y].state = 1 - this.cells[x][y].state;

  }

}