/**** * Plugins ****/ var tween = LK.import("@upit/tween.v1"); /**** * Classes ****/ var Apple = Container.expand(function (type) { var self = Container.call(this); var assetName = type + 'Apple'; var graphics = self.attachAsset(assetName, { anchorX: 0.5, anchorY: 0.5 }); self.type = type; self.gridX = 0; self.gridY = 0; return self; }); var ArrowButton = Container.expand(function (direction) { var self = Container.call(this); var graphics = self.attachAsset('arrowButton', { anchorX: 0.5, anchorY: 0.5 }); self.direction = direction; self.down = function (x, y, obj) { currentDirection = self.direction; graphics.alpha = 0.7; tween(graphics, { alpha: 1 }, { duration: 200 }); }; return self; }); var Egg = Container.expand(function () { var self = Container.call(this); var graphics = self.attachAsset('egg', { anchorX: 0.5, anchorY: 0.5 }); self.gridX = 0; self.gridY = 0; return self; }); var SnakeSegment = Container.expand(function (isHead) { var self = Container.call(this); if (isHead) { var graphics = self.attachAsset('snakeHead', { anchorX: 0.5, anchorY: 0.5 }); } else { 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: 0x000000 }); /**** * Game Code ****/ var GRID_SIZE = 40; var GRID_WIDTH = 25; var GRID_HEIGHT = 35; var GAME_AREA_X = (2048 - GRID_WIDTH * GRID_SIZE) / 2; var GAME_AREA_Y = 200; var snake = []; var currentDirection = 'right'; var nextDirection = 'right'; var moveTimer = 0; var moveInterval = 15; var health = 5; var score = 0; var gameActive = true; var apples = []; var eggs = []; var hearts = []; // Initialize snake with 4 segments for (var i = 0; i < 4; i++) { var segment = new SnakeSegment(i === 0); segment.gridX = 12 - i; segment.gridY = 17; segment.x = GAME_AREA_X + segment.gridX * GRID_SIZE + GRID_SIZE / 2; segment.y = GAME_AREA_Y + segment.gridY * GRID_SIZE + GRID_SIZE / 2; snake.push(segment); game.addChild(segment); } // Create health hearts for (var i = 0; i < 5; i++) { var heart = LK.getAsset('heart', { anchorX: 0.5, anchorY: 0.5, x: 150 + i * 60, y: 100 }); hearts.push(heart); LK.gui.topLeft.addChild(heart); } // Create score display var scoreText = new Text2('Score: 0', { size: 60, fill: 0xFFFFFF }); scoreText.anchor.set(0.5, 0); LK.gui.top.addChild(scoreText); // Create arrow buttons var upButton = new ArrowButton('up'); upButton.x = 1700; upButton.y = 2200; game.addChild(upButton); var downButton = new ArrowButton('down'); downButton.x = 1700; downButton.y = 2400; game.addChild(downButton); var leftButton = new ArrowButton('left'); leftButton.x = 1580; leftButton.y = 2300; game.addChild(leftButton); var rightButton = new ArrowButton('right'); rightButton.x = 1820; rightButton.y = 2300; game.addChild(rightButton); function gridToWorldX(gridX) { return GAME_AREA_X + gridX * GRID_SIZE + GRID_SIZE / 2; } function gridToWorldY(gridY) { return GAME_AREA_Y + gridY * GRID_SIZE + GRID_SIZE / 2; } function isValidGridPosition(x, y) { return x >= 0 && x < GRID_WIDTH && y >= 0 && y < GRID_HEIGHT; } function isSnakePosition(x, y) { for (var i = 0; i < snake.length; i++) { if (snake[i].gridX === x && snake[i].gridY === y) { return true; } } return false; } function isOccupiedPosition(x, y) { if (isSnakePosition(x, y)) return true; for (var i = 0; i < apples.length; i++) { if (apples[i].gridX === x && apples[i].gridY === y) { return true; } } for (var i = 0; i < eggs.length; i++) { if (eggs[i].gridX === x && eggs[i].gridY === y) { return true; } } return false; } function getRandomFreePosition() { var attempts = 0; var maxAttempts = 100; while (attempts < maxAttempts) { var x = Math.floor(Math.random() * GRID_WIDTH); var y = Math.floor(Math.random() * GRID_HEIGHT); if (!isOccupiedPosition(x, y)) { return { x: x, y: y }; } attempts++; } return null; } function spawnApple(type) { var pos = getRandomFreePosition(); if (!pos) return; var apple = new Apple(type); apple.gridX = pos.x; apple.gridY = pos.y; apple.x = gridToWorldX(pos.x); apple.y = gridToWorldY(pos.y); apples.push(apple); game.addChild(apple); } function spawnEgg() { var pos = getRandomFreePosition(); if (!pos) return; var egg = new Egg(); egg.gridX = pos.x; egg.gridY = pos.y; egg.x = gridToWorldX(pos.x); egg.y = gridToWorldY(pos.y); eggs.push(egg); game.addChild(egg); } function updateHealth(newHealth) { health = Math.max(0, Math.min(5, newHealth)); for (var i = 0; i < hearts.length; i++) { hearts[i].alpha = i < health ? 1 : 0.3; } if (health <= 0) { gameActive = false; LK.showGameOver(); } } function updateScore(points) { score += points; LK.setScore(score); scoreText.setText('Score: ' + score); } function moveSnake() { if (!gameActive) return; currentDirection = nextDirection; var head = snake[0]; var newX = head.gridX; var newY = head.gridY; switch (currentDirection) { case 'up': newY--; break; case 'down': newY++; break; case 'left': newX--; break; case 'right': newX++; break; } // Check wall collision if (!isValidGridPosition(newX, newY)) { gameActive = false; LK.showGameOver(); return; } // Check self collision if (isSnakePosition(newX, newY)) { gameActive = false; LK.showGameOver(); return; } var shouldGrow = false; var growthAmount = 1; // Check apple collision for (var i = apples.length - 1; i >= 0; i--) { var apple = apples[i]; if (apple.gridX === newX && apple.gridY === newY) { if (apple.type === 'red') { shouldGrow = true; updateScore(10); LK.getSound('eat').play(); } else if (apple.type === 'green') { updateHealth(health - 1); updateScore(5); LK.getSound('hurt').play(); } else if (apple.type === 'gold') { updateScore(25); LK.getSound('bonus').play(); // Spawn 3 red apples for (var j = 0; j < 3; j++) { spawnApple('red'); } } apple.destroy(); apples.splice(i, 1); break; } } // Check egg collision for (var i = eggs.length - 1; i >= 0; i--) { var egg = eggs[i]; if (egg.gridX === newX && egg.gridY === newY) { shouldGrow = true; growthAmount = 5; updateScore(50); LK.getSound('bonus').play(); egg.destroy(); eggs.splice(i, 1); break; } } // Move snake var newHead = new SnakeSegment(true); newHead.gridX = newX; newHead.gridY = newY; newHead.x = gridToWorldX(newX); newHead.y = gridToWorldY(newY); // Convert old head to body snake[0].destroy(); var oldHeadBody = new SnakeSegment(false); oldHeadBody.gridX = head.gridX; oldHeadBody.gridY = head.gridY; oldHeadBody.x = head.x; oldHeadBody.y = head.y; snake[0] = oldHeadBody; game.addChild(oldHeadBody); snake.unshift(newHead); game.addChild(newHead); if (!shouldGrow) { var tail = snake.pop(); tail.destroy(); } else { for (var i = 1; i < growthAmount; i++) { var extraSegment = new SnakeSegment(false); var lastSegment = snake[snake.length - 1]; extraSegment.gridX = lastSegment.gridX; extraSegment.gridY = lastSegment.gridY; extraSegment.x = lastSegment.x; extraSegment.y = lastSegment.y; snake.push(extraSegment); game.addChild(extraSegment); } } } // Create dark green border around game area var borderThickness = 10; var borderColor = 0x006400; // Dark green // Top border var topBorder = LK.getAsset('snakeBody', { anchorX: 0, anchorY: 0, scaleX: (GRID_WIDTH * GRID_SIZE + borderThickness * 2) / 40, scaleY: borderThickness / 40, x: GAME_AREA_X - borderThickness, y: GAME_AREA_Y - borderThickness }); topBorder.tint = borderColor; game.addChild(topBorder); // Bottom border var bottomBorder = LK.getAsset('snakeBody', { anchorX: 0, anchorY: 0, scaleX: (GRID_WIDTH * GRID_SIZE + borderThickness * 2) / 40, scaleY: borderThickness / 40, x: GAME_AREA_X - borderThickness, y: GAME_AREA_Y + GRID_HEIGHT * GRID_SIZE }); bottomBorder.tint = borderColor; game.addChild(bottomBorder); // Left border var leftBorder = LK.getAsset('snakeBody', { anchorX: 0, anchorY: 0, scaleX: borderThickness / 40, scaleY: GRID_HEIGHT * GRID_SIZE / 40, x: GAME_AREA_X - borderThickness, y: GAME_AREA_Y }); leftBorder.tint = borderColor; game.addChild(leftBorder); // Right border var rightBorder = LK.getAsset('snakeBody', { anchorX: 0, anchorY: 0, scaleX: borderThickness / 40, scaleY: GRID_HEIGHT * GRID_SIZE / 40, x: GAME_AREA_X + GRID_WIDTH * GRID_SIZE, y: GAME_AREA_Y }); rightBorder.tint = borderColor; game.addChild(rightBorder); // Initial spawns spawnApple('red'); spawnApple('red'); spawnApple('green'); game.update = function () { if (!gameActive) return; moveTimer++; if (moveTimer >= moveInterval) { moveTimer = 0; moveSnake(); } // Spawn new items occasionally if (LK.ticks % 300 === 0) { // Every 5 seconds if (Math.random() < 0.7) { spawnApple('red'); } else if (Math.random() < 0.8) { spawnApple('green'); } else if (Math.random() < 0.95) { spawnApple('gold'); } else { spawnEgg(); } } }; game.down = function (x, y, obj) { // Handle arrow button presses - use the x, y coordinates directly as they are already in game space // Check which direction was pressed based on position if (x > 1640 && x < 1760 && y > 2140 && y < 2260) { // Up button if (currentDirection !== 'down') { nextDirection = 'up'; } } else if (x > 1640 && x < 1760 && y > 2340 && y < 2460) { // Down button if (currentDirection !== 'up') { nextDirection = 'down'; } } else if (x > 1520 && x < 1640 && y > 2240 && y < 2360) { // Left button if (currentDirection !== 'right') { nextDirection = 'left'; } } else if (x > 1760 && x < 1880 && y > 2240 && y < 2360) { // Right button if (currentDirection !== 'left') { nextDirection = 'right'; } } };