/**** * Plugins ****/ var tween = LK.import("@upit/tween.v1"); var storage = LK.import("@upit/storage.v1"); /**** * Classes ****/ var Food = Container.expand(function () { var self = Container.call(this); var graphics = self.attachAsset('food', { anchorX: 0.5, anchorY: 0.5 }); self.gridX = 0; self.gridY = 0; self.points = 10; self.update = function () { self.rotation += 0.05; self.scaleX = 1 + Math.sin(LK.ticks * 0.1) * 0.1; self.scaleY = 1 + Math.sin(LK.ticks * 0.1) * 0.1; }; return self; }); var MovingWall = Container.expand(function () { var self = Container.call(this); var graphics = self.attachAsset('wall', { anchorX: 0.5, anchorY: 0.5 }); self.gridX = 0; self.gridY = 0; self.moveDirection = 1; self.moveSpeed = 1; self.update = function () { if (gameMode === 'obstacle') { self.gridX += self.moveDirection * self.moveSpeed; if (self.gridX <= 1 || self.gridX >= gridWidth - 2) { self.moveDirection *= -1; } self.x = self.gridX * cellSize + gameOffsetX + cellSize / 2; } }; return self; }); var PowerUp = Container.expand(function (type) { var self = Container.call(this); var assetName = type || 'speedBoost'; var graphics = self.attachAsset(assetName, { anchorX: 0.5, anchorY: 0.5 }); self.gridX = 0; self.gridY = 0; self.type = type; self.duration = 5000; self.update = function () { self.rotation += 0.08; self.scaleX = 1.2 + Math.sin(LK.ticks * 0.15) * 0.2; self.scaleY = 1.2 + Math.sin(LK.ticks * 0.15) * 0.2; }; return self; }); var SnakeHead = Container.expand(function () { var self = Container.call(this); var graphics = self.attachAsset('snakeHead', { anchorX: 0.5, anchorY: 0.5 }); self.gridX = 0; self.gridY = 0; return self; }); var SnakeSegment = Container.expand(function () { var self = Container.call(this); var graphics = self.attachAsset('snakeBody', { anchorX: 0.5, anchorY: 0.5 }); self.gridX = 0; self.gridY = 0; return self; }); /**** * Initialize Game ****/ var game = new LK.Game({ backgroundColor: 0x001122 }); /**** * Game Code ****/ // Game constants var gridWidth = 25; var gridHeight = 35; var cellSize = 70; var gameOffsetX = (2048 - gridWidth * cellSize) / 2; var gameOffsetY = 200; // Game state variables var gameMode = 'classic'; var snake = []; var snakeDirection = { x: 1, y: 0 }; var nextDirection = { x: 1, y: 0 }; var foods = []; var powerUps = []; var walls = []; var gameSpeed = 200; var baseSpeed = 200; var lastMoveTime = 0; var isGameRunning = false; var currentScore = 0; var timeLeft = 60; var gameStartTime = 0; // Power-up states var speedBoostActive = false; var speedBoostEndTime = 0; var ghostModeActive = false; var ghostModeEndTime = 0; var scoreMultiplierActive = false; var scoreMultiplierEndTime = 0; var multiplierValue = 1; // UI Elements var scoreTxt = new Text2('Score: 0', { size: 80, fill: 0xFFFFFF }); scoreTxt.anchor.set(0.5, 0); LK.gui.top.addChild(scoreTxt); scoreTxt.y = 60; var modeTxt = new Text2('Classic Mode', { size: 60, fill: 0x00FF00 }); modeTxt.anchor.set(0, 0); modeTxt.x = 150; modeTxt.y = 150; game.addChild(modeTxt); var timeTxt = new Text2('', { size: 60, fill: 0xFFFF00 }); timeTxt.anchor.set(1, 0); timeTxt.x = 1900; timeTxt.y = 150; game.addChild(timeTxt); var powerUpTxt = new Text2('', { size: 50, fill: 0xFFFFFF }); powerUpTxt.anchor.set(0.5, 0); LK.gui.top.addChild(powerUpTxt); powerUpTxt.y = 140; // Game mode selection UI var classicBtn = new Text2('Classic', { size: 70, fill: 0x00FF00 }); classicBtn.anchor.set(0.5, 0.5); classicBtn.x = 2048 / 2 - 300; classicBtn.y = 2732 / 2 - 200; classicBtn.interactive = true; game.addChild(classicBtn); var timeAttackBtn = new Text2('Time Attack', { size: 70, fill: 0xFFFF00 }); timeAttackBtn.anchor.set(0.5, 0.5); timeAttackBtn.x = 2048 / 2; timeAttackBtn.y = 2732 / 2 - 200; timeAttackBtn.interactive = true; game.addChild(timeAttackBtn); var obstacleBtn = new Text2('Obstacle', { size: 70, fill: 0xFF8800 }); obstacleBtn.anchor.set(0.5, 0.5); obstacleBtn.x = 2048 / 2 + 300; obstacleBtn.y = 2732 / 2 - 200; obstacleBtn.interactive = true; game.addChild(obstacleBtn); var startBtn = new Text2('START GAME', { size: 100, fill: 0xFFFFFF }); startBtn.anchor.set(0.5, 0.5); startBtn.x = 2048 / 2; startBtn.y = 2732 / 2; startBtn.interactive = true; game.addChild(startBtn); // Touch controls var lastTouchX = 0; var lastTouchY = 0; var minSwipeDistance = 50; function initializeGame() { // Clear existing game objects for (var i = snake.length - 1; i >= 0; i--) { snake[i].destroy(); } snake = []; for (var i = foods.length - 1; i >= 0; i--) { foods[i].destroy(); } foods = []; for (var i = powerUps.length - 1; i >= 0; i--) { powerUps[i].destroy(); } powerUps = []; for (var i = walls.length - 1; i >= 0; i--) { walls[i].destroy(); } walls = []; // Reset game state snakeDirection = { x: 1, y: 0 }; nextDirection = { x: 1, y: 0 }; gameSpeed = baseSpeed; currentScore = 0; LK.setScore(0); timeLeft = 60; gameStartTime = Date.now(); // Reset power-ups speedBoostActive = false; ghostModeActive = false; scoreMultiplierActive = false; multiplierValue = 1; // Create initial snake var head = new SnakeHead(); head.gridX = 12; head.gridY = 17; head.x = head.gridX * cellSize + gameOffsetX + cellSize / 2; head.y = head.gridY * cellSize + gameOffsetY + cellSize / 2; game.addChild(head); snake.push(head); for (var i = 1; i < 3; i++) { var segment = new SnakeSegment(); segment.gridX = 12 - i; segment.gridY = 17; segment.x = segment.gridX * cellSize + gameOffsetX + cellSize / 2; segment.y = segment.gridY * cellSize + gameOffsetY + cellSize / 2; game.addChild(segment); snake.push(segment); } // Create initial food spawnFood(); // Create walls for obstacle mode if (gameMode === 'obstacle') { createObstacles(); } // Hide menu UI classicBtn.visible = false; timeAttackBtn.visible = false; obstacleBtn.visible = false; startBtn.visible = false; // Update mode text if (gameMode === 'classic') { modeTxt.setText('Classic Mode'); modeTxt.tint = 0x00ff00; } else if (gameMode === 'timeAttack') { modeTxt.setText('Time Attack'); modeTxt.tint = 0xffff00; } else if (gameMode === 'obstacle') { modeTxt.setText('Obstacle Course'); modeTxt.tint = 0xff8800; } isGameRunning = true; lastMoveTime = Date.now(); LK.playMusic('bgmusic'); } function spawnFood() { var food = new Food(); var validPosition = false; var attempts = 0; while (!validPosition && attempts < 100) { food.gridX = Math.floor(Math.random() * gridWidth); food.gridY = Math.floor(Math.random() * gridHeight); validPosition = true; // Check collision with snake for (var i = 0; i < snake.length; i++) { if (snake[i].gridX === food.gridX && snake[i].gridY === food.gridY) { validPosition = false; break; } } // Check collision with walls for (var i = 0; i < walls.length; i++) { if (walls[i].gridX === food.gridX && walls[i].gridY === food.gridY) { validPosition = false; break; } } attempts++; } food.x = food.gridX * cellSize + gameOffsetX + cellSize / 2; food.y = food.gridY * cellSize + gameOffsetY + cellSize / 2; game.addChild(food); foods.push(food); } function spawnPowerUp() { if (powerUps.length >= 2) return; var types = ['speedBoost', 'ghostMode', 'scoreMultiplier']; var type = types[Math.floor(Math.random() * types.length)]; var powerUp = new PowerUp(type); var validPosition = false; var attempts = 0; while (!validPosition && attempts < 100) { powerUp.gridX = Math.floor(Math.random() * gridWidth); powerUp.gridY = Math.floor(Math.random() * gridHeight); validPosition = true; // Check collision with snake for (var i = 0; i < snake.length; i++) { if (snake[i].gridX === powerUp.gridX && snake[i].gridY === powerUp.gridY) { validPosition = false; break; } } // Check collision with food for (var i = 0; i < foods.length; i++) { if (foods[i].gridX === powerUp.gridX && foods[i].gridY === powerUp.gridY) { validPosition = false; break; } } // Check collision with walls for (var i = 0; i < walls.length; i++) { if (walls[i].gridX === powerUp.gridX && walls[i].gridY === powerUp.gridY) { validPosition = false; break; } } attempts++; } powerUp.x = powerUp.gridX * cellSize + gameOffsetX + cellSize / 2; powerUp.y = powerUp.gridY * cellSize + gameOffsetY + cellSize / 2; game.addChild(powerUp); powerUps.push(powerUp); } function createObstacles() { // Create moving walls for (var i = 0; i < 3; i++) { var wall = new MovingWall(); wall.gridX = 5 + i * 7; wall.gridY = 10 + i * 8; wall.x = wall.gridX * cellSize + gameOffsetX + cellSize / 2; wall.y = wall.gridY * cellSize + gameOffsetY + cellSize / 2; game.addChild(wall); walls.push(wall); } } function activatePowerUp(type) { var currentTime = Date.now(); if (type === 'speedBoost') { speedBoostActive = true; speedBoostEndTime = currentTime + 5000; gameSpeed = baseSpeed * 0.5; } else if (type === 'ghostMode') { ghostModeActive = true; ghostModeEndTime = currentTime + 3000; // Make snake semi-transparent for (var i = 0; i < snake.length; i++) { snake[i].alpha = 0.5; } } else if (type === 'scoreMultiplier') { scoreMultiplierActive = true; scoreMultiplierEndTime = currentTime + 8000; multiplierValue = 2; } LK.getSound('powerup').play(); LK.effects.flashScreen(0x00ff00, 200); } function updatePowerUps() { var currentTime = Date.now(); if (speedBoostActive && currentTime > speedBoostEndTime) { speedBoostActive = false; gameSpeed = Math.max(baseSpeed - Math.floor(currentScore / 100) * 20, 50); } if (ghostModeActive && currentTime > ghostModeEndTime) { ghostModeActive = false; for (var i = 0; i < snake.length; i++) { snake[i].alpha = 1; } } if (scoreMultiplierActive && currentTime > scoreMultiplierEndTime) { scoreMultiplierActive = false; multiplierValue = 1; } // Update power-up display var powerUpText = ''; if (speedBoostActive) powerUpText += 'SPEED BOOST '; if (ghostModeActive) powerUpText += 'GHOST MODE '; if (scoreMultiplierActive) powerUpText += 'x2 MULTIPLIER '; powerUpTxt.setText(powerUpText); } function moveSnake() { if (!isGameRunning) return; var currentTime = Date.now(); if (currentTime - lastMoveTime < gameSpeed) return; snakeDirection = { x: nextDirection.x, y: nextDirection.y }; var head = snake[0]; var newX = head.gridX + snakeDirection.x; var newY = head.gridY + snakeDirection.y; // Check wall collision (unless in ghost mode) if (!ghostModeActive) { if (newX < 0 || newX >= gridWidth || newY < 0 || newY >= gridHeight) { gameOver(); return; } } else { // Wrap around in ghost mode if (newX < 0) newX = gridWidth - 1; if (newX >= gridWidth) newX = 0; if (newY < 0) newY = gridHeight - 1; if (newY >= gridHeight) newY = 0; } // Check self collision (unless in ghost mode) if (!ghostModeActive) { for (var i = 0; i < snake.length; i++) { if (snake[i].gridX === newX && snake[i].gridY === newY) { gameOver(); return; } } } // Check wall obstacle collision if (!ghostModeActive) { for (var i = 0; i < walls.length; i++) { if (walls[i].gridX === newX && walls[i].gridY === newY) { gameOver(); return; } } } var shouldGrow = false; // Check food collision for (var i = foods.length - 1; i >= 0; i--) { if (foods[i].gridX === newX && foods[i].gridY === newY) { var points = foods[i].points * multiplierValue; currentScore += points; LK.setScore(currentScore); scoreTxt.setText('Score: ' + currentScore); foods[i].destroy(); foods.splice(i, 1); shouldGrow = true; LK.getSound('eat').play(); spawnFood(); // Spawn power-ups occasionally if (Math.random() < 0.2) { spawnPowerUp(); } // Increase difficulty in classic mode if (gameMode === 'classic') { gameSpeed = Math.max(baseSpeed - Math.floor(currentScore / 100) * 20, 50); } break; } } // Check power-up collision for (var i = powerUps.length - 1; i >= 0; i--) { if (powerUps[i].gridX === newX && powerUps[i].gridY === newY) { activatePowerUp(powerUps[i].type); powerUps[i].destroy(); powerUps.splice(i, 1); break; } } // Move snake if (!shouldGrow) { var tail = snake.pop(); tail.gridX = newX; tail.gridY = newY; tail.x = tail.gridX * cellSize + gameOffsetX + cellSize / 2; tail.y = tail.gridY * cellSize + gameOffsetY + cellSize / 2; snake.unshift(tail); } else { var newHead = new SnakeHead(); newHead.gridX = newX; newHead.gridY = newY; newHead.x = newHead.gridX * cellSize + gameOffsetX + cellSize / 2; newHead.y = newHead.gridY * cellSize + gameOffsetY + cellSize / 2; game.addChild(newHead); snake.unshift(newHead); // Convert old head to body segment var oldHead = snake[1]; oldHead.removeChild(oldHead.children[0]); var bodyGraphics = oldHead.attachAsset('snakeBody', { anchorX: 0.5, anchorY: 0.5 }); } lastMoveTime = currentTime; } function gameOver() { isGameRunning = false; LK.getSound('collision').play(); LK.effects.flashScreen(0xff0000, 1000); // Save high score var highScore = storage.highScore || 0; if (currentScore > highScore) { storage.highScore = currentScore; } LK.showGameOver(); } function handleSwipe(deltaX, deltaY) { if (!isGameRunning) return; var absX = Math.abs(deltaX); var absY = Math.abs(deltaY); if (absX > absY) { // Horizontal swipe if (deltaX > 0 && snakeDirection.x !== -1) { nextDirection = { x: 1, y: 0 }; // Right } else if (deltaX < 0 && snakeDirection.x !== 1) { nextDirection = { x: -1, y: 0 }; // Left } } else { // Vertical swipe if (deltaY > 0 && snakeDirection.y !== -1) { nextDirection = { x: 0, y: 1 }; // Down } else if (deltaY < 0 && snakeDirection.y !== 1) { nextDirection = { x: 0, y: -1 }; // Up } } } // Button event handlers classicBtn.down = function (x, y, obj) { gameMode = 'classic'; baseSpeed = 200; classicBtn.tint = 0x00ff00; timeAttackBtn.tint = 0xffffff; obstacleBtn.tint = 0xffffff; }; timeAttackBtn.down = function (x, y, obj) { gameMode = 'timeAttack'; baseSpeed = 150; classicBtn.tint = 0xffffff; timeAttackBtn.tint = 0xffff00; obstacleBtn.tint = 0xffffff; }; obstacleBtn.down = function (x, y, obj) { gameMode = 'obstacle'; baseSpeed = 180; classicBtn.tint = 0xffffff; timeAttackBtn.tint = 0xffffff; obstacleBtn.tint = 0xff8800; }; startBtn.down = function (x, y, obj) { initializeGame(); }; game.down = function (x, y, obj) { lastTouchX = x; lastTouchY = y; }; game.up = function (x, y, obj) { var deltaX = x - lastTouchX; var deltaY = y - lastTouchY; var distance = Math.sqrt(deltaX * deltaX + deltaY * deltaY); if (distance > minSwipeDistance) { handleSwipe(deltaX, deltaY); } }; game.update = function () { if (isGameRunning) { moveSnake(); updatePowerUps(); // Update time for time attack mode if (gameMode === 'timeAttack') { var currentTime = Date.now(); timeLeft = Math.max(0, 60 - Math.floor((currentTime - gameStartTime) / 1000)); timeTxt.setText('Time: ' + timeLeft); if (timeLeft <= 0) { isGameRunning = false; LK.showGameOver(); } // Spawn food more frequently in time attack if (LK.ticks % 120 === 0) { spawnFood(); } } // Spawn power-ups occasionally if (LK.ticks % 600 === 0 && Math.random() < 0.3) { spawnPowerUp(); } } };