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Tetris
Developer User6827｜Date and time 23/9/10 20:55:41
Build time 64.366 sec｜Game capacity 7.128KB｜

Script

Sure! Here's a simple implementation of Tetris as a single HTML file, using JavaScript:

This simple implementation of Tetris uses keyboard controls (Left/Right/Down arrow keys for movement, Q/W keys for rotation). It supports basic Tetromino shapes and updates the player's score on each line cleared. The game is played on a canvas element and the blocks are represented by blue squares. You can run this HTML file on a smartphone and play Tetris. Enjoy!

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[PR]現在の欲しいものランキング

Click here for free DL of the app version that can save data.

Sure! Here's a simple implementation of Tetris as a single HTML file, using JavaScript:

```html
<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>Tetris</title>
    <style>
      canvas {
        border: 1px solid black;
        margin: 0 auto;
        display: block;
      }
    </style>
  </head>
  <body>
    <canvas id="tetris" width="240" height="400"></canvas>

const arena = createMatrix(12, 20);  // Tetris game arena dimensions

const player = {
          pos: { x: 0, y: 0 },
          matrix: null,
          score: 0,
        };

function createMatrix(width, height) {
          const matrix = [];
          while (height--) {
            matrix.push(new Array(width).fill(0));
          }
          return matrix;
        }

function draw() {
          context.fillStyle = 'black';
          context.fillRect(0, 0, canvas.width, canvas.height);

drawMatrix(arena, { x: 0, y: 0 });
          drawMatrix(player.matrix, player.pos);
        }

function playerDrop() {
          player.pos.y++;
          if (collide(arena, player)) {
            player.pos.y--;
            merge(arena, player);
            playerReset();
            arenaSweep();
            updateScore();
          }
          dropCounter = 0;
        }

function playerMove(dir) {
          player.pos.x += dir;
          if (collide(arena, player)) {
            player.pos.x -= dir;
          }
        }

function playerReset() {
          const pieces = 'ILJOTSZ';
          player.matrix = createPiece(pieces[pieces.length * Math.random() | 0]);
          player.pos.y = 0;
          player.pos.x = (arena[0].length / 2 | 0) - (player.matrix[0].length / 2 | 0);
          if (collide(arena, player)) {
            arena.forEach(row => row.fill(0));
            player.score = 0;
            updateScore();
          }
        }

function updateScore() {
          document.getElementById('score').innerText = player.score;
        }

let dropCounter = 0;
        let dropInterval = 1000;  // Initial drop interval

let lastTime = 0;
        function update(time = 0) {
          const deltaTime = time - lastTime;
          lastTime = time;

dropCounter += deltaTime;
          if (dropCounter > dropInterval) {
            playerDrop();
          }

draw();
          requestAnimationFrame(update);
        }

playerReset();
        update();
      });
    </script>
  </body>
</html>
```