用js写一个俄罗斯方块游戏
时间: 2023-05-16 07:05:44 浏览: 71
好的,下面是用 JavaScript 写俄罗斯方块游戏的基本思路:
1. 首先,我们需要建立游戏的框架,这可以通过 HTML5 的 canvas 元素来实现。在 canvas 中,我们可以使用 JavaScript 绘制各种图形,并通过操作 canvas 上的像素来实现游戏的画面更新。
2. 接着,我们需要定义俄罗斯方块的各种形状,并设计出用于操控方块的各种动作(例如向左、向右、旋转等)。这可以通过 JavaScript 的数组和对象来实现。
3. 接下来,我们需要实现游戏的主循环,在每一帧中,我们需要更新方块的位置,并检测是否有方块落地或撞到其他方块。这可以通过 JavaScript 的 setInterval 函数来实现。
4. 最后,我们需要为游戏增加一些交互性,这可以通过监听用户的键盘输入来实现。例如,我们可以通过监听键盘的左右箭头键来控制方块向左或向右移动,通过监听上箭头键来控制方块旋转等。
这就是用 JavaScript 写俄罗斯方块游戏的基本思路。希望这些信息对你有所帮助。
相关问题
用javascript写一个俄罗斯方块小游戏
俄罗斯方块是一款非常经典的游戏,使用 JavaScript 和 HTML5 可以很容易地实现。下面是一个简单的俄罗斯方块小游戏的示例,你可以基于这个示例进行修改和扩展。
HTML 代码:
```html
<!DOCTYPE html>
<html>
<head>
<title>俄罗斯方块</title>
<style>
#game-board {
width: 200px;
height: 400px;
border: 1px solid black;
}
</style>
</head>
<body>
<div id="game-board"></div>
<script src="tetris.js"></script>
</body>
</html>
```
JavaScript 代码:
```javascript
var gameBoard = document.getElementById("game-board");
var ctx = gameBoard.getContext("2d");
var board = [];
for (var row = 0; row < 20; row++) {
board[row] = [];
for (var col = 0; col < 10; col++) {
board[row][col] = 0;
}
}
var pieces = [
// I
[
[1, 1, 1, 1]
],
// J
[
[1, 0, 0],
[1, 1, 1]
],
// L
[
[0, 0, 1],
[1, 1, 1]
],
// O
[
[1, 1],
[1, 1]
],
// S
[
[0, 1, 1],
[1, 1, 0]
],
// T
[
[0, 1, 0],
[1, 1, 1]
],
// Z
[
[1, 1, 0],
[0, 1, 1]
]
];
var colors = [
"#00ffff", // I
"#0000ff", // J
"#ff8000", // L
"#ffff00", // O
"#00ff00", // S
"#8000ff", // T
"#ff0000" // Z
];
var currentPiece = {
piece: pieces[Math.floor(Math.random() * pieces.length)],
row: 0,
col: 3
};
function drawSquare(row, col, color) {
ctx.fillStyle = color;
ctx.fillRect(col * 20, row * 20, 20, 20);
}
function drawBoard() {
for (var row = 0; row < board.length; row++) {
for (var col = 0; col < board[row].length; col++) {
if (board[row][col] !== 0) {
drawSquare(row, col, colors[board[row][col] - 1]);
}
}
}
}
function drawPiece() {
var piece = currentPiece.piece;
var row = currentPiece.row;
var col = currentPiece.col;
for (var r = 0; r < piece.length; r++) {
for (var c = 0; c < piece[r].length; c++) {
if (piece[r][c] === 1) {
drawSquare(row + r, col + c, colors[pieces.indexOf(piece)]);
}
}
}
}
function can
Javascript写一个俄罗斯方块游戏
以下是一个使用JavaScript编写的俄罗斯方块游戏的示例代码:
```html
<!DOCTYPE html>
<html>
<head>
<title>Tetris Game</title>
<style>
/* 游戏区域样式 */
#game-board {
width: 300px;
height: 600px;
border: 1px solid black;
position: relative;
}
/* 方块样式 */
.block {
width: 30px;
height: 30px;
position: absolute;
}
/* 方块颜色 */
.block-i {
background-color: cyan;
}
.block-j {
background-color: blue;
}
.block-l {
background-color: orange;
}
.block-o {
background-color: yellow;
}
.block-s {
background-color: green;
}
.block-t {
background-color: purple;
}
.block-z {
background-color: red;
}
</style>
</head>
<body>
<div id="game-board"></div>
<script>
// 游戏区域的宽度和高度
const BOARD_WIDTH = 10;
const BOARD_HEIGHT = 20;
// 方块的形状和颜色
const SHAPES = [
{ name: 'i', color: 'block-i', shape: [[1, 1, 1, 1]] },
{ name: 'j', color: 'block-j', shape: [[1, 0, 0], [1, 1, 1]] },
{ name: 'l', color: 'block-l', shape: [[0, 0, 1], [1, 1, 1]] },
{ name: 'o', color: 'block-o', shape: [[1, 1], [1, 1]] },
{ name: 's', color: 'block-s', shape: [[0, 1, 1], [1, 1, 0]] },
{ name: 't', color: 'block-t', shape: [[0, 1, 0], [1, 1, 1]] },
{ name: 'z', color: 'block-z', shape: [[1, 1, 0], [0, 1, 1]] }
];
// 游戏区域的二维数组,用于存储方块的位置
let board = [];
// 当前方块的位置和形状
let currentShape = {};
let currentX = 0;
let currentY = 0;
// 初始化游戏区域
function initBoard() {
for (let i = 0; i < BOARD_HEIGHT; i++) {
board[i] = [];
for (let j = 0; j < BOARD_WIDTH; j++) {
board[i][j] = '';
}
}
}
// 创建一个新的方块
function createNewShape() {
const randomIndex = Math.floor(Math.random() * SHAPES.length);
const shape = SHAPES[randomIndex];
currentShape = shape;
currentX = Math.floor((BOARD_WIDTH - shape.shape[0].length) / 2);
currentY = 0;
}
// 绘制游戏区域
function drawBoard() {
const gameBoard = document.getElementById('game-board');
gameBoard.innerHTML = '';
for (let i = 0; i < BOARD_HEIGHT; i++) {
for (let j = 0; j < BOARD_WIDTH; j++) {
if (board[i][j] !== '') {
const block = document.createElement('div');
block.className = `block ${board[i][j]}`;
block.style.top = `${i * 30}px`;
block.style.left = `${j * 30}px`;
gameBoard.appendChild(block);
}
}
}
}
// 绘制当前方块
function drawCurrentShape() {
const gameBoard = document.getElementById('game-board');
for (let i = 0; i < currentShape.shape.length; i++) {
for (let j = 0; j < currentShape.shape[i].length; j++) {
if (currentShape.shape[i][j] === 1) {
const block = document.createElement('div');
block.className = `block ${currentShape.color}`;
block.style.top = `${(currentY + i) * 30}px`;
block.style.left = `${(currentX + j) * 30}px`;
gameBoard.appendChild(block);
}
}
}
}
// 检查方块是否可以移动到指定位置
function canMoveTo(x, y, shape) {
for (let i = 0; i < shape.length; i++) {
for (let j = 0; j < shape[i].length; j++) {
if (shape[i][j] === 1) {
const newX = x + j;
const newY = y + i;
if (newX < 0 || newX >= BOARD_WIDTH || newY >= BOARD_HEIGHT || board[newY][newX] !== '') {
return false;
}
}
}
}
return true;
}
// 将当前方块固定在游戏区域中
function fixCurrentShape() {
for (let i = 0; i < currentShape.shape.length; i++) {
for (let j = 0; j < currentShape.shape[i].length; j++) {
if (currentShape.shape[i][j] === 1) {
const x = currentX + j;
const y = currentY + i;
board[y][x] = currentShape.color;
}
}
}
}
// 消除已经填满的行
function clearFullRows() {
for (let i = BOARD_HEIGHT - 1; i >= 0; i--) {
if (board[i].every(cell => cell !== '')) {
board.splice(i, 1);
board.unshift(new Array(BOARD_WIDTH).fill(''));
}
}
}
// 游戏结束
function gameOver() {
alert('Game Over');
initBoard();
drawBoard();
}
// 游戏循环
function gameLoop() {
if (canMoveTo(currentX, currentY + 1, currentShape.shape)) {
currentY++;
} else {
fixCurrentShape();
clearFullRows();
createNewShape();
if (!canMoveTo(currentX, currentY, currentShape.shape)) {
gameOver();
return;
}
}
drawBoard();
drawCurrentShape();
}
// 监听键盘事件
document.addEventListener('keydown', event => {
if (event.key === 'ArrowLeft' && canMoveTo(currentX - 1, currentY, currentShape.shape)) {
currentX--;
} else if (event.key === 'ArrowRight' && canMoveTo(currentX + 1, currentY, currentShape.shape)) {
currentX++;
} else if (event.key === 'ArrowDown' && canMoveTo(currentX, currentY + 1, currentShape.shape)) {
currentY++;
} else if (event.key === 'ArrowUp') {
const rotatedShape = rotateShape(currentShape.shape);
if (canMoveTo(currentX, currentY, rotatedShape)) {
currentShape.shape = rotatedShape;
}
}
});
// 旋转方块
function rotateShape(shape) {
const newShape = [];
const rows = shape.length;
const cols = shape[0].length;
for (let i = 0; i < cols; i++) {
newShape[i] = [];
for (let j = 0; j < rows; j++) {
newShape[i][j] = shape[rows - j - 1][i];
}
}
return newShape;
}
// 初始化游戏
function initGame() {
initBoard();
createNewShape();
setInterval(gameLoop, 500);
}
initGame();
</script>
</body>
</html>
```
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