/**** * Classes ****/ var TetrominoBlock = Container.expand(function (type, i, j, blockSize) { var self = Container.call(this); var blockGraphic = self.createAsset('tetromino_' + type, type + ' Tetromino block', 0.5, 0.5); self.x = j * blockSize; self.y = i * blockSize; }); // Define Tetromino class var Tetromino = Container.expand(function () { var self = Container.call(this); Tetromino.prototype.checkCollision = function (dx, dy, board) { for (var i = 0; i < this.blocks.length; i++) { var block = this.blocks[i]; var newX = this.x + block.x + dx; var newY = this.y + block.y + dy; var gridX = Math.floor(newX / blockSize); var gridY = Math.floor(newY / blockSize); if (gridX < 0 || gridX >= boardWidth || gridY >= boardHeight) { return true; // Collision with board boundaries } if (gridY >= 0 && board.grid[gridY] && board.grid[gridY][gridX]) { return true; // Collision with another block } } return false; }; this.blocks = []; this.type = ''; this.rotationIndex = 0; this.initializeBlocks = function (layout) { this.initializeBlocks = function (layout, blockSize) { for (var i = 0; i < layout.length; i++) { for (var j = 0; j < layout[i].length; j++) { if (layout[i][j]) { var block = new TetrominoBlock(this.type, i, j, blockSize); this.blocks.push(block); this.addChild(block); } } } }; }; this.create = function (type, blockSize) { this.type = type; this.rotationIndex = 0; var layout = tetrominoLayouts[type][this.rotationIndex]; this.initializeBlocks(layout, blockSize); }; this.rotate = function () { var oldRotationIndex = this.rotationIndex; var newRotationIndex = (this.rotationIndex + 1) % tetrominoLayouts[this.type].length; this.rotationIndex = newRotationIndex; this.updateBlockPositions(); if (this.checkCollision(0, 0, board)) { this.rotationIndex = oldRotationIndex; this.updateBlockPositions(); } }; this.updateBlockPositions = function () { var layout = tetrominoLayouts[this.type][this.rotationIndex]; var k = 0; for (var i = 0; i < layout.length; i++) { for (var j = 0; j < layout[i].length; j++) { if (layout[i][j]) { this.blocks[k].x = j * this.blocks[k].width; this.blocks[k].y = i * this.blocks[k].height; k++; } } } }; this.move = function (dx, dy) { if (!this.checkCollision(dx, dy, board)) { this.x += dx; this.y += dy; } else if (dy > 0) { board.fixTetromino(this); spawnTetromino(); } }; }); // Define GameBoard class var GameBoard = Container.expand(function () { var self = Container.call(this); this.grid = []; this.init = function () { for (var i = 0; i < boardHeight; i++) { this.grid[i] = []; for (var j = 0; j < boardWidth; j++) { this.grid[i][j] = null; } } }; this.fixTetromino = function (tetromino) { var blocks = tetromino.blocks; for (var i = 0; i < blocks.length; i++) { var block = blocks[i]; var x = Math.round((block.x + tetromino.x - this.x) / blockSize); var y = Math.round((block.y + tetromino.y - this.y) / blockSize); if (y < boardHeight && x < boardWidth) { this.grid[y][x] = block; block.x = x * blockSize; block.y = y * blockSize; this.addChild(block); } else if (y < 0) { LK.showGameOver(); return false; } } this.checkLines(); return true; }; this.isGameOver = function () { for (var x = 0; x < boardWidth; x++) { if (this.grid[0][x] !== null) { return true; } } return false; }; this.checkLines = function () { for (var y = 0; y < boardHeight; y++) { var lineComplete = true; for (var x = 0; x < boardWidth; x++) { if (this.grid[y][x] === null) { lineComplete = false; break; } } if (lineComplete) { for (var row = y; row > 0; row--) { for (var x = 0; x < boardWidth; x++) { this.grid[row][x] = this.grid[row - 1][x]; if (this.grid[row][x]) { this.grid[row][x].y += blockSize; } } } for (var x = 0; x < boardWidth; x++) { this.grid[0][x] = null; } for (var x = 0; x < boardWidth; x++) { if (this.grid[y][x]) { this.grid[y][x].destroy(); this.grid[y][x] = null; } } var linesCleared = 0; for (var y = 0; y < boardHeight; y++) { var lineComplete = true; for (var x = 0; x < boardWidth; x++) { if (this.grid[y][x] === null) { lineComplete = false; break; } } if (lineComplete) { linesCleared++; for (var row = y; row > 0; row--) { for (var x = 0; x < boardWidth; x++) { this.grid[row][x] = this.grid[row - 1][x]; if (this.grid[row][x]) { this.grid[row][x].y += blockSize; } } } for (var x = 0; x < boardWidth; x++) { this.grid[0][x] = null; } for (var x = 0; x < boardWidth; x++) { if (this.grid[y][x]) { this.grid[y][x].destroy(); this.grid[y][x] = null; } } } } if (linesCleared > 0) { var scoreToAdd = linesCleared === 1 ? 100 : linesCleared === 2 ? 300 : linesCleared === 3 ? 500 : 800; LK.setScore(LK.getScore() + scoreToAdd); gameUI.updateScore(LK.getScore()); } } } }; this.init(); }); // Define LowerField class for collecting Tetrominoes var LowerField = Container.expand(function () { var self = Container.call(this); this.init = function () { this.grid = []; for (var i = 0; i < boardHeight; i++) { this.grid[i] = []; for (var j = 0; j < boardWidth; j++) { this.grid[i][j] = null; } } }; this.init(); this.addBlock = function (block, x, y) { if (y < boardHeight && x < boardWidth) { this.grid[y][x] = block; block.x = x * blockSize; block.y = y * blockSize; this.addChild(block); } }; }); // Define GameMenu class var GameMenu = Container.expand(function () { var self = Container.call(this); this.startButton = new Text2('Start', { size: 150, fill: "#ffffff", anchor: { x: 0.5, y: 0.5 } }); this.startButton.on('down', function () { GameState.initialize(); self.visible = false; }); this.pauseButton = new Text2('Pause', { size: 150, fill: "#ffffff", anchor: { x: 0.5, y: 0.5 } }); this.pauseButton.on('down', function () { GameState.state = 'paused'; }); this.resumeButton = new Text2('Resume', { size: 150, fill: "#ffffff", anchor: { x: 0.5, y: 0.5 } }); this.resumeButton.on('down', function () { GameState.state = 'active'; }); this.restartButton = new Text2('Restart', { size: 150, fill: "#ffffff", anchor: { x: 0.5, y: 0.5 } }); this.restartButton.on('down', function () { GameState.initialize(); }); LK.gui.bottom.addChild(this.startButton); LK.gui.bottom.addChild(this.pauseButton); LK.gui.bottom.addChild(this.resumeButton); LK.gui.bottom.addChild(this.restartButton); this.pauseButton.visible = false; this.resumeButton.visible = false; this.restartButton.visible = false; }); // Create a new GameMenu instance // Create score display var ScoreDisplay = Container.expand(function () { var self = Container.call(this); this.scoreText = new Text2('Score: 0', { size: 100, fill: "#ffffff", anchor: { x: 0.5, y: 0 } }); this.levelText = new Text2('Level: 1', { size: 100, fill: "#ffffff", anchor: { x: 0.5, y: 0 } }); this.linesText = new Text2('Lines: 0', { size: 100, fill: "#ffffff", anchor: { x: 0.5, y: 0 } }); LK.gui.top.addChild(this.scoreText); LK.gui.top.addChild(this.levelText); LK.gui.top.addChild(this.linesText); this.levelText.y = this.scoreText.height; this.linesText.y = this.scoreText.height * 2; this.updateScore = function (score) { this.scoreText.setText('Score: ' + score.toString()); }; this.updateLevel = function (level) { this.levelText.setText('Level: ' + level.toString()); }; this.updateLinesCleared = function (lines) { this.linesText.setText('Lines: ' + lines.toString()); }; }); // Create a new ScoreDisplay instance var GameUI = Container.expand(function () { var self = Container.call(this); this.scoreText = new Text2('Score: 0', { size: 100, fill: "#ffffff", anchor: { x: 0.5, y: 0 } }); this.levelText = new Text2('Level: 1', { size: 100, fill: "#ffffff", anchor: { x: 0.5, y: 0 } }); this.nextTetrominoPreview = new Container(); LK.gui.top.addChild(this.scoreText); LK.gui.top.addChild(this.levelText); LK.gui.topRight.addChild(this.nextTetrominoPreview); this.scoreText.y = 20; this.levelText.y = this.scoreText.height + 20; this.nextTetrominoPreview.y = 20; this.updateScore = function (score) { this.scoreText.setText('Score: ' + score.toString()); }; this.updateLevel = function (level) { this.levelText.setText('Level: ' + level.toString()); }; this.updateNextTetrominoPreview = function (type) { this.nextTetrominoPreview.removeChildren(); var layout = GameState.tetrominoLayouts[type][0]; for (var i = 0; i < layout.length; i++) { for (var j = 0; j < layout[i].length; j++) { if (layout[i][j]) { var block = LK.getAsset('tetromino_' + type + '_preview', 'Next Tetromino block', 0.5, 0.5); block.x = j * (blockSize * 0.5); block.y = i * (blockSize * 0.5); this.nextTetrominoPreview.addChild(block); } } } }; }); /**** * Initialize Game ****/ // Create a new GameUI instance var game = new LK.Game({ backgroundColor: 0x000000 // Init game with black background for better contrast }); /**** * Game Code ****/ // Create a new GameMenu instance var gameMenu = new GameMenu(); // Define game constants and variables var GameState = { boardWidth: 10, boardHeight: 20, blockSize: 2048 / 10, // Calculate block size based on viewable area width fallRate: 1000, // Time in milliseconds between each Tetromino fall step score: 0, // Initialize current score level: 1, // Initialize game level state: 'active', // Game state can be 'paused', 'active', or 'gameOver' grid: [], initializeGrid: function () { for (var i = 0; i < this.boardHeight; i++) { this.grid[i] = []; for (var j = 0; j < this.boardWidth; j++) { this.grid[i][j] = null; // Each cell starts as null (empty) } } } }; GameState.initializeGrid(); // Initialize the first Tetromino spawnTetromino(); // Define game constants and variables var TetrominoMovement = { calculateMove: function calculateMove(tetromino, dx, dy, board) { var newX = tetromino.x + dx; var newY = tetromino.y + dy; var canMove = true; for (var i = 0; i < tetromino.blocks.length; i++) { var block = tetromino.blocks[i]; var gridX = Math.round((block.x + newX - board.x) / blockSize); var gridY = Math.round((block.y + newY - board.y) / blockSize); if (gridX < 0 || gridX >= boardWidth || gridY < 0 || gridY >= boardHeight) { canMove = false; break; } else if (gridY >= 0 && board.grid[gridY] && board.grid[gridY][gridX]) { canMove = false; break; } } return { canMove: canMove, newX: newX, newY: newY }; } }; var boardWidth = 10; var boardHeight = 20; var blockSize = 2048 / boardWidth; // Calculate block size based on viewable area width var fallRate = 1000; // Time in milliseconds between each Tetromino fall step // GameBoard class is now encapsulated and instantiated separately var board = new GameBoard(); game.addChild(board); var GameState = { currentTetromino: null, nextTetrominoType: null, tetrominoTypes: ['I', 'J', 'L', 'O', 'S', 'T', 'Z'], tetrominoLayouts: { '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]]] }, scoreTxt: null, isGameOver: false, initialize: function () { this.currentTetromino = null; this.nextTetrominoType = this.tetrominoTypes[Math.floor(Math.random() * this.tetrominoTypes.length)]; this.linesCleared = 0; this.score = 0; this.level = 1; this.state = 'active'; this.spawnTetromino(); gameUI.updateScore(this.score); gameUI.updateLevel(this.level); gameUI.updateLinesCleared(this.linesCleared); gameMenu.startButton.visible = false; gameMenu.pauseButton.visible = true; gameMenu.resumeButton.visible = false; gameMenu.restartButton.visible = true; board.init(); game.addChild(board); board.x = (2048 - boardWidth * blockSize) / 2; board.y = (2732 - boardHeight * blockSize) / 2; game.addChild(gameUI); }, spawnTetromino: function () { GameState.linesCleared = 0; gameUI.updateScore(GameState.score); gameUI.updateLevel(GameState.level); gameUI.updateNextTetrominoPreview(GameState.nextTetrominoType); var type = this.nextTetrominoType != null ? this.nextTetrominoType : this.tetrominoTypes[Math.floor(Math.random() * this.tetrominoTypes.length)]; this.nextTetrominoType = this.tetrominoTypes[Math.floor(Math.random() * this.tetrominoTypes.length)]; this.currentTetromino = new Tetromino(); this.currentTetromino.create(type); this.currentTetromino.x = board.x + (boardWidth * blockSize - this.currentTetromino.width) / 2; this.currentTetromino.y = board.y - this.currentTetromino.height; game.addChild(this.currentTetromino); }, gameOver: function () { this.isGameOver = true; LK.showGameOver(); } }; GameState.initialize(); // Initialize board board.init(); // Center the board on the screen board.x = (2048 - boardWidth * blockSize) / 2; board.y = (2732 - boardHeight * blockSize) / 2; // Create a new GameUI instance var gameUI = new GameUI(); // Function to spawn a new tetromino function spawnTetromino(blockSize) { var type = GameState.nextTetrominoType != null ? GameState.nextTetrominoType : GameState.tetrominoTypes[Math.floor(Math.random() * GameState.tetrominoTypes.length)]; GameState.nextTetrominoType = GameState.tetrominoTypes[Math.floor(Math.random() * GameState.tetrominoTypes.length)]; GameState.currentTetromino = new Tetromino(); GameState.currentTetromino.create(type, blockSize); GameState.currentTetromino.x = board.x + boardWidth / 2 * blockSize - GameState.currentTetromino.width / 2; GameState.currentTetromino.y = board.y; game.addChild(GameState.currentTetromino); } // Start the game with a new tetromino spawnTetromino(); // Implement automatic Tetromino descent // Function to handle user input for moving and rotating the tetromino function handleUserInput() { game.on('down', function (obj) { var touchPos = obj.event.getLocalPosition(game); // Define touch areas for control var leftArea = { x: board.x, width: boardWidth * blockSize / 3 }; var rightArea = { x: board.x + boardWidth * blockSize * 2 / 3, width: boardWidth * blockSize / 3 }; var rotateArea = { x: board.x + boardWidth * blockSize / 3, width: boardWidth * blockSize / 3 }; // Move tetromino left if (touchPos.x >= leftArea.x && touchPos.x < leftArea.x + leftArea.width) { currentTetromino.move(-blockSize, 0); } // Move tetromino right else if (touchPos.x >= rightArea.x && touchPos.x < rightArea.x + rightArea.width) { currentTetromino.move(blockSize, 0); } // Rotate tetromino else if (touchPos.x >= rotateArea.x && touchPos.x < rotateArea.x + rotateArea.width) { currentTetromino.rotate(); } }); } // Game loop LK.on('tick', function () { if (GameState.state === 'paused') { return; } // Handle Tetromino descent if (GameState.currentTetromino && GameState.state === 'active') { if (LK.ticks % (fallRate / (1000 / 60)) === 0) { GameState.currentTetromino.move(0, blockSize); } } // Handle user input for moving and rotating the tetromino handleUserInput(); // Check for completed lines board.checkLines(); // Check for game over if (board.isGameOver()) { GameState.gameOver(); } }); // Function to handle user input for moving and rotating the tetromino function handleUserInput() { game.on('down', function (obj) { var touchPos = obj.event.getLocalPosition(game); var leftArea = { x: 0, width: board.x }; var rightArea = { x: board.x + boardWidth * blockSize, width: 2048 - (board.x + boardWidth * blockSize) }; var rotateArea = { x: board.x, y: board.y, width: boardWidth * blockSize, height: boardHeight * blockSize }; if (touchPos.x < leftArea.width) { GameState.currentTetromino.move(-blockSize, 0); } else if (touchPos.x > rightArea.x) { GameState.currentTetromino.move(blockSize, 0); } else if (touchPos.x >= rotateArea.x && touchPos.x < rotateArea.x + rotateArea.width && touchPos.y >= rotateArea.y && touchPos.y < rotateArea.y + rotateArea.height) { GameState.currentTetromino.rotate(); } }); }

Russian Tetris by Mad

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