我正在完成这项任务,我需要构建一个版本的生命游戏。我无法正确设置这个2D阵列,以便我可以跟踪细胞是“活着”还是“死亡”。我好像已经撞墙了,我需要有人让我朝着正确的方向前进。
var grid;
function setup () {
createCanvas(400, 400);
grid = new Grid(20);
}
function draw () {
background(245);
grid.draw();
}
class Grid {
constructor (cellSize) {
this.cellSize = cellSize;
this.numberOfColumns = height/this.cellSize;
this.numberOfRows = width/this.cellSize;
this.cells = new Array(this.numberOfColumns);
this.rows = new Array(this.numberOfRows);
this.twoDArray = new Array(this.cells);
for (var i = 0; i < this.cells; i++) {
this.twoDArray[i] = new Array(this.rows);
}
// for (var column = 0; column < this.numberOfColumns; column ++) {
// for (var row = 0; row < this.numberOfRows; row++) {
// this.cells[column][row] = new Cell(column, row, cellSize);
//}
// }
print(this.cells);
}
draw() {
for (var column = 0; column < this.numberOfColumns; column ++) {
for (var row = 0; row < this.numberOfRows; row++) {
fill(240);
noStroke();
rect(column * this.cellSize + 1, row * this.cellSize + 1, this.cellSize - 1, this.cellSize - 1);
}
}
}
}
class Cell {
contructor (column, row, cellSize) {
this.column = column;
this.row = row;
this.cellSize = cellSize;
isAlive = false;
}
}
每当我尝试取消注释上面评论的代码时,控制台会说:TypeError:无法设置'0'的属性未定义。我确定我错过了一些明显的东西,但我似乎无法看到它是什么。您将给予的任何帮助将不胜感激。
答案 0 :(得分:3)
您无法将this.cells
用作多维数组,因为它按照new Array
填充了空元素。
您应该将代码更改为:
for (var column = 0; column < this.numberOfColumns; column ++) {
this.cells[column] = []; // or use here new Array or similar
for (var row = 0; row < this.numberOfRows; row++) {
this.cells[column][row] = new Cell(column, row, cellSize);
}
}