Question

am试图使用p5js创造生活中的conways游戏。（p5js website）

这是仿真gif的链接：Google Drive Link

我有两个二维数组，一个用于保存当前网格，一个用于保存更新的网格。数组的值为0 =空或1 =有效。我使用图像绘制网格，其中1个像素代表网格中的一个单元。现在，当我运行该程序时，它做了无法解释的事情（爆炸性增长。参见gif），但我认为它与确定单元是否应处于活动状态的规则有关。还是可能与我有多个网格有关？

我们将不胜感激，帮助您找出问题所在以及其产生这些模式的原因

这是我决定单元是否应处于活动状态的逻辑

for(var x = 0; x < width; x++){
  for(var y = 0; y < height; y++){
    //get cells neighbors
    var n = getNeighbors(x,y);

    //if cell is active
    if(grid[x][y] == 1){
      // #1 - Any live cell with fewer than two live neighbors dies, as if by underpopulation.
      if(n < 2){
        newGrid[x][y] = 0;
      }else if(n > 3){// #3 -Any live cell with more than three live neighbors dies, as if by overpopulation.
        newGrid[x][y] = 0;
      }

      // #2 - Any live cell with two or three live neighbors lives on to the next generation.
      // this doesnt need a statement since if neighbors value is not < 2 or not > 3 then the value can only be 2 or 3
    }else{
      // #4 - Any dead cell with exactly three live neighbors becomes a live cell, as if by reproduction.
      if(n == 3){
        newGrid[x][y] = 1;
      }
    }
  }
}

仅供参考，此处是带有注释的全部信息（135行）

var grid = [];
var newGrid = [];
var img;

function setup() {
    createCanvas(400, 400);
    frameRate(10);
    //populate grid array
    for (var i = 0; i < width; i++) {
        grid[i] = [];
        for (var j = 0; j < height; j++) {
            var r = random(0, 1);

            if (r > 0.9) {
              grid[i][j] = 1;
            } else {
              grid[i][j] = 0;
            }
        }
    }

    //populate newgrid
    newGrid = grid;

    //create img object
    img = createImage(width, height);

    //populate img pixels
    drawImageUsingGrid();

    //draw img
    image(img, 0, 0);
}

function draw() {

    //loop through grid
    for (var x = 0; x < width; x++) {
        for (var y = 0; y < height; y++) {
            //get cells neighbors
            var n = getNeighbors(x, y);

            //if cell is active
            if (grid[x][y] == 1) {
                // #1 - Any live cell with fewer than two live neighbors dies, as if by underpopulation.
                if (n < 2) {
                    newGrid[x][y] = 0;
                } else if (n > 3) { // #3 -Any live cell with more than three live neighbors dies, as if by overpopulation.
                    newGrid[x][y] = 0;
                }

                // #2 - Any live cell with two or three live neighbors lives on to the next generation.
                // this doesnt need a statement since if neighbors value is not < 2 or not > 3 then the value can only be 2 or 3
            } else {
                // #4 - Any dead cell with exactly three live neighbors becomes a live cell, as if by reproduction.
                if (n == 3) {
                    newGrid[x][y] = 1;
                }
            }
        }
    }

    //set current grid to the new updated grid
    grid = newGrid;

    //set img pixels based upon grid
    drawImageUsingGrid();

    //draw img
    image(img, 0, 0);
}

function getNeighbors(x, y) {
    //hold # of neighbors
    var neighbors = 0;

    //check if neighbor exists at index and is active
    if (grid[x] && grid[x][y - 1] && grid[x][y - 1] == 1) { //top
        neighbors++;
    }
    if (grid[x + 1] && grid[x + 1][y] && grid[x + 1][y] == 1) { //right
        neighbors++;
    }
    if (grid[x] && grid[x][y + 1] && grid[x][y + 1] == 1) { //bottom
        neighbors++;
    }
    if (grid[x - 1] && grid[x - 1][y] && grid[x - 1][y] == 1) { //left
        neighbors++;
    }

    //diagonal neighbors
    if (grid[x - 1] && grid[x - 1][y - 1] && grid[x - 1][y - 1] == 1) {         //topleft
        neighbors++;
    }
    if (grid[x + 1] && grid[x + 1][y - 1] && grid[x + 1][y - 1] == 1) { //topright
        neighbors++;
    }
    if (grid[x - 1] && grid[x - 1][y + 1] && grid[x - 1][y + 1] == 1) { //bottomleft
        neighbors++;
    }
    if (grid[x + 1] && grid[x + 1][y + 1] && grid[x + 1][y + 1] == 1) { //bottomright
        neighbors++;
    }

    return neighbors;
}

function drawImageUsingGrid() {
    //load img pixels to be edited
    img.loadPixels();

    //2d for loop
    for (var i = 0; i < img.width; i++) {
        for (var j = 0; j < img.height; j++) {
            if (grid[i][j] == 0) {
                //get pixel at x,y
                var pix = getPixelIndex(i, j);
                //set pixel rgba
                img.pixels[pix + 0] = 255;
                img.pixels[pix + 1] = 255;
                img.pixels[pix + 2] = 255;
                img.pixels[pix + 3] = 255;
            } else {
                //get pixel at x,y
                var pix = getPixelIndex(i, j);
                //set pixel rgba
                img.pixels[pix + 0] = 0;
                img.pixels[pix + 1] = 0;
                img.pixels[pix + 2] = 0;
                img.pixels[pix + 3] = 255;
            }
        }
    }
    //update img pixels
    img.updatePixels();
}

function getPixelIndex(x, y) {
    return (x + y * width) * 4;
}

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康威人生游戏p5js

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