基于Javascript的二维网格传播

const width = 10;
const height = 10;
let grid = Array.from({ length: height }, () => Array(width).fill(0));

// 初始化感染源
grid[5][5] = 1;

function spread() {
    let newGrid = grid.map(row => row.slice()); // 复制当前状态
    for (let y = 0; y < height; y++) {
        for (let x = 0; x < width; x++) {
            if (grid[y][x] === 1) { // 如果当前单元格已感染
                // 向四个方向传播
                if (y > 0 && newGrid[y - 1][x] === 0) newGrid[y - 1][x] = 1;
                if (y < height - 1 && newGrid[y + 1][x] === 0) newGrid[y + 1][x] = 1;
                if (x > 0 && newGrid[y][x - 1] === 0) newGrid[y][x - 1] = 1;
                if (x < width - 1 && newGrid[y][x + 1] === 0) newGrid[y][x + 1] = 1;
            }
        }
    }
    grid = newGrid; // 更新网格状态
}

// 模拟传播过程
for (let i = 0; i < 5; i++) {
    spread();
    console.log(grid);
}