Тетрис
26.04.2024, 19:24. Показов 405. Ответов 0
решил тут попробовать написать тетрис но что то не могу разобраться с переворотом фигуры, после того как нажимаю на стрелку вверх фигура пропадает с игрового поля кто что может посоветовать
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| <!DOCTYPE html>
<html>
<head>
<title>Тетрис</title>
<style>
body {
display: flex;
justify-content: center;
align-items: center;
height: 100vh;
margin: 0;
background-color: #000;
}
canvas {
border: 1px solid #fff;
}
</style>
</head>
<body>
<canvas id="tetris" width="240" height="400"></canvas>
<script>
const canvas = document.getElementById('tetris');
const context = canvas.getContext('2d');
// Размеры игрового поля
const cellSize = 20;
const rows = canvas.height / cellSize;
const cols = canvas.width / cellSize;
// Инициализация игрового поля
let board = Array.from({ length: rows }, () => Array(cols).fill(0));
// Фигуры Тетрис
const shapes = [
[[1, 1, 1, 1]],
[[1, 1], [1, 1]],
[[1, 1, 0], [0, 1, 1]],
[[0, 1, 1], [1, 1]],
[[1, 1, 1], [0, 1, 0]],
[[1, 1, 1], [1, 0, 0]],
[[1, 1, 1], [0, 0, 1]]
];
// Текущая фигура
let currentShape = shapes[Math.floor(Math.random() * shapes.length)];
let currentX = 5;
let currentY = 0;
// Отрисовка игрового поля
function drawBoard() {
context.clearRect(0, 0, canvas.width, canvas.height);
for (let y = 0; y < rows; y++) {
for (let x = 0; x < cols; x++) {
if (board[y][x] !== 0) {
context.fillStyle = 'blue';
context.fillRect(x * cellSize, y * cellSize, cellSize, cellSize);
}
}
}
}
// Отрисовка фигуры
function drawShape() {
currentShape.forEach((row, y) => {
row.forEach((value, x) => {
if (value !== 0) {
context.fillStyle = 'red';
context.fillRect(
(currentX + x) * cellSize,
(currentY + y) * cellSize,
cellSize,
cellSize
);
}
});
});
}
// Проверка столкновений
function collision(board, shape, x, y) {
for (let yy = 0; yy < shape.length; yy++) {
for (let xx = 0; xx < shape[yy].length; xx++) {
if (shape[yy][xx] !== 0 &&
(board[y + yy] && board[y + yy][x + xx]) !== 0) {
return true;
}
}
}
return false;
}
// Вращение фигуры
function rotate(shape) {
const newShape = shape[0].map((val, index) => shape.map(row => row[index]));
return newShape[0].reverse();
}
// Обработка нажатий клавиш
function keyDown(e) {
switch (e.keyCode) {
case 37: // Влево
move(-1);
break;
case 39: // Вправо
move(1);
break;
case 40: // Вниз
drop();
break;
case 38: // Вверх
const rotatedShape = rotate(currentShape);
if (!collision(board, rotatedShape, currentX, currentY)) {
currentShape = rotatedShape;
}
break;
}
}
// Функция падения
function drop() {
if (!collision(board, currentShape, currentX, currentY + 1)) {
currentY++;
} else {
updateBoard();
currentShape = shapes[Math.floor(Math.random() * shapes.length)];
currentX = 5;
currentY = 0;
}
}
// Перемещение фигуры
function move(dx) {
if (!collision(board, currentShape, currentX + dx, currentY)) {
currentX += dx;
}
}
// Обновление игрового поля
function updateBoard() {
currentShape.forEach((row, y) => {
row.forEach((value, x) => {
if (value !== 0) {
board[currentY + y][currentX + x] = 1;
}
});
});
}
// Основной игровой цикл
function gameLoop() {
drawBoard();
drawShape();
requestAnimationFrame(gameLoop);
}
// Запуск игры
gameLoop();
// Автоматическое падение фигур
setInterval(drop, 1000);
// Добавление обработчика событий клавиатуры
document.addEventListener('keydown', keyDown);
</script>
</body>
</html> |
|
Я сделал !! правда есть баги но это мелочи, вот код кому интересно
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| <!DOCTYPE html>
<html>
<head>
<title>Тетрис</title>
<style>
body {
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
height: 100vh;
margin: 0;
background-color: #000;
}
canvas {
border: 1px solid #fff;
}
#score {
color: #fff;
font-size: 24px;
margin-bottom: 20px;
}
</style>
</head>
<body>
<div id="score">Score: 0</div>
<canvas id="tetris" width="240" height="400"></canvas>
<script>
const canvas = document.getElementById('tetris');
const context = canvas.getContext('2d');
const cellSize = 20;
const rows = canvas.height / cellSize;
const cols = canvas.width / cellSize;
let board = Array.from({ length: rows }, () => Array(cols).fill(0));
const shapes = [
[[1, 1, 1, 1]],
[[1, 1], [1, 1]],
[[1, 1, 0], [0, 1, 1]],
[[0, 1, 1], [1, 1]],
[[1, 1, 1], [0, 1, 0]],
[[1, 1, 1], [1, 0, 0]],
[[1, 1, 1], [0, 0, 1]]
];
let currentShape = shapes[Math.floor(Math.random() * shapes.length)];
let currentX = 5;
let currentY = 0;
let score = 0;
function drawBoard() {
context.clearRect(0, 0, canvas.width, canvas.height);
for (let y = 0; y < rows; y++) {
for (let x = 0; x < cols; x++) {
if (board[y][x] !== 0) {
context.fillStyle = 'blue';
context.fillRect(x * cellSize, y * cellSize, cellSize, cellSize);
}
}
}
}
function drawShape() {
currentShape.forEach((row, y) => {
row.forEach((value, x) => {
if (value !== 0) {
context.fillStyle = 'red';
context.fillRect(
(currentX + x) * cellSize,
(currentY + y) * cellSize,
cellSize,
cellSize
);
}
});
});
}
function collision(board, shape, x, y) {
for (let yy = 0; yy < shape.length; yy++) {
for (let xx = 0; xx < shape[yy].length; xx++) {
if (shape[yy][xx] !== 0 &&
(board[y + yy] && board[y + yy][x + xx]) !== 0) {
return true;
}
}
}
return false;
}
function rotate(shape) {
const transposed = shape[0].map((_, i) => shape.map(row => row[i]));
const rotated = transposed.map(row => row.reverse());
for (let y = 0; y < rotated.length; y++) {
for (let x = 0; x < rotated[y].length; x++) {
if (rotated[y][x] !== 0 &&
(currentX + x >= cols || currentY + y >= rows || board[currentY + y][currentX + x] !== 0)) {
return shape;
}
}
}
return rotated;
}
function keyDown(e) {
switch (e.keyCode) {
case 37: // Влево
move(-1);
break;
case 39: // Вправо
move(1);
break;
case 40: // Вниз
drop();
break;
case 38: // Вверх
const rotatedShape = rotate(currentShape);
if (!collision(board, rotatedShape, currentX, currentY)) {
currentShape = rotatedShape;
}
break;
}
}
function drop() {
if (!collision(board, currentShape, currentX, currentY + 1)) {
currentY++;
} else {
updateBoard();
currentShape = shapes[Math.floor(Math.random() * shapes.length)];
currentX = 5;
currentY = 0;
}
}
function move(dx) {
if (!collision(board, currentShape, currentX + dx, currentY)) {
currentX += dx;
}
}
function updateBoard() {
currentShape.forEach((row, y) => {
row.forEach((value, x) => {
if (value !== 0) {
board[currentY + y][currentX + x] = 1;
}
});
});
clearCompletedRows();
}
function clearCompletedRows() {
let rowsCleared = 0;
outer: for (let y = rows - 1; y >= 0; --y) {
for (let x = 0; x < cols; ++x) {
if (board[y][x] === 0) {
continue outer;
}
}
board.splice(y, 1);
board.unshift(new Array(cols).fill(0));
rowsCleared++;
}
score += rowsCleared;
updateScoreDisplay();
}
function updateScoreDisplay() {
document.getElementById('score').textContent = `Score: ${score}`;
}
function gameLoop() {
drawBoard();
drawShape();
requestAnimationFrame(gameLoop);
}
gameLoop();
setInterval(drop, 1000);
document.addEventListener('keydown', keyDown);
// Initial score display
updateScoreDisplay();
</script>
</body>
</html> |
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