/**** * Plugins ****/ var tween = LK.import("@upit/tween.v1"); var storage = LK.import("@upit/storage.v1", { highScore: 0 }); /**** * Classes ****/ var Coin = Container.expand(function () { var self = Container.call(this); var coinGraphics = self.attachAsset('coin', { anchorX: 0.5, anchorY: 0.5 }); self.collected = false; self.rotationSpeed = 0.05; self.update = function () { if (!self.collected) { coinGraphics.rotation += self.rotationSpeed; } else { self.alpha -= 0.1; self.y -= 5; self.scale.x *= 0.9; self.scale.y *= 0.9; } }; self.collect = function () { if (!self.collected) { self.collected = true; LK.getSound('coin').play(); tween(self, { alpha: 0 }, { duration: 500, onFinish: function onFinish() { self.destroy(); } }); } }; return self; }); var Lane = Container.expand(function (y) { var self = Container.call(this); var laneGraphics = self.attachAsset('lane', { anchorX: 0.5, anchorY: 0.5 }); self.y = y; self.x = 2048 / 2; // Create lane dividers self.dividers = []; var dividerCount = 15; var spacing = 2048 / dividerCount; for (var i = 0; i < dividerCount; i++) { var divider = self.attachAsset('laneDivider', { anchorX: 0.5, anchorY: 0.5, x: i * spacing, y: 0 }); self.dividers.push(divider); } self.update = function () { for (var i = 0; i < self.dividers.length; i++) { self.dividers[i].x -= 10; if (self.dividers[i].x < -75) { self.dividers[i].x += 2048; } } }; return self; }); var Player = Container.expand(function () { var self = Container.call(this); var playerGraphics = self.attachAsset('player', { anchorX: 0.5, anchorY: 1.0 }); self.vx = 0; self.vy = 0; self.gravity = 1; self.jumpForce = -25; self.isJumping = false; self.isOnVehicle = false; self.currentVehicle = null; self.jump = function () { if (!self.isJumping || self.isOnVehicle) { self.vy = self.jumpForce; self.isJumping = true; self.isOnVehicle = false; self.currentVehicle = null; LK.getSound('jump').play(); } }; self.update = function () { if (self.currentVehicle && self.isOnVehicle) { self.x += self.currentVehicle.speed; } if (self.isJumping && !self.isOnVehicle) { self.vy += self.gravity; self.y += self.vy; } // Keep player within bounds if (self.x < 100) { self.x = 100; } if (self.x > 2048 - 100) { self.x = 2048 - 100; } }; self.down = function (x, y, obj) { self.jump(); }; return self; }); var Vehicle = Container.expand(function (type) { var self = Container.call(this); self.type = type || 'car'; var vehicleGraphics = self.attachAsset(self.type, { anchorX: 0.5, anchorY: 1.0 }); self.width = vehicleGraphics.width; self.height = vehicleGraphics.height; self.speed = self.type === 'car' ? -8 - Math.random() * 5 : -5 - Math.random() * 3; self.update = function () { self.x += self.speed; // Ensure vehicle stays within its lane // Ensure vehicle stays within its lane self.y = baseY + self.laneIndex * laneSpacing; // Reset vehicle position if off-screen if (self.x < -self.width) { self.x = 2048 + self.width; } }; return self; }); /**** * Initialize Game ****/ var game = new LK.Game({ backgroundColor: 0x87CEEB }); /**** * Game Code ****/ // Game state variables var score = 0; var highScore = storage.highScore || 0; var gameSpeed = 1; var coinCount = 0; var lanes = []; var vehicles = []; var coins = []; var spawnTimer = 0; var coinSpawnTimer = 0; var gameRunning = true; // Create background var sky = game.addChild(LK.getAsset('sky', { anchorX: 0.5, anchorY: 0, x: 2048 / 2, y: 0 })); var city = game.addChild(LK.getAsset('city', { anchorX: 0.5, anchorY: 0, x: 2048 / 2, y: 1000 })); // Create lanes var laneCount = 4; var laneSpacing = 250; var baseY = 1800; for (var i = 0; i < laneCount; i++) { var lane = new Lane(baseY + i * laneSpacing); game.addChild(lane); lanes.push(lane); } // Create player var player = new Player(); player.x = 300; player.y = baseY - 10; // Position slightly above the lane game.addChild(player); // Create score display var scoreTxt = new Text2('SCORE: 0', { size: 80, fill: 0xFFFFFF }); scoreTxt.anchor.set(0, 0); LK.gui.topLeft.addChild(scoreTxt); // Create high score display var highScoreTxt = new Text2('HIGH SCORE: ' + highScore, { size: 60, fill: 0xFFFFFF }); highScoreTxt.anchor.set(1, 0); highScoreTxt.x = -20; highScoreTxt.y = 90; LK.gui.topRight.addChild(highScoreTxt); // Spawn a vehicle on a random lane function spawnVehicle() { var type = Math.random() > 0.3 ? 'car' : 'truck'; var vehicle = new Vehicle(type); var laneIndex = Math.floor(Math.random() * laneCount); vehicle.y = baseY + laneIndex * laneSpacing; vehicle.laneIndex = laneIndex; // Track the lane index for the vehicle vehicle.x = 2048 + vehicle.width; game.addChild(vehicle); vehicles.push(vehicle); return vehicle; } // Spawn a coin at a random position, possibly on top of a vehicle function spawnCoin() { var coin = new Coin(); var onVehicle = Math.random() > 0.5 && vehicles.length > 0; if (onVehicle) { var vehicleIndex = Math.floor(Math.random() * vehicles.length); var vehicle = vehicles[vehicleIndex]; coin.x = vehicle.x; coin.y = vehicle.y - vehicle.height - 50; } else { var laneIndex = Math.floor(Math.random() * laneCount); coin.x = 2048 + 100; coin.y = baseY + laneIndex * laneSpacing - 150; } game.addChild(coin); coins.push(coin); } // Check collision between player and vehicles function checkCollisions() { for (var i = 0; i < vehicles.length; i++) { var vehicle = vehicles[i]; if (player.intersects(vehicle)) { // Check if player is on top of the vehicle if (player.y <= vehicle.y - vehicle.height + 20 && player.vy >= 0) { player.isJumping = false; player.isOnVehicle = true; player.currentVehicle = vehicle; player.y = vehicle.y - vehicle.height; player.vy = 0; } else if (!player.isOnVehicle || player.currentVehicle !== vehicle) { // Collision from the side or bottom gameOver(); } } } // Check ground collision for (var j = 0; j < laneCount; j++) { var laneY = baseY + j * laneSpacing; if (player.y >= laneY && player.y - player.vy < laneY) { player.y = laneY; player.vy = 0; player.isJumping = false; } } // Check coin collection for (var k = coins.length - 1; k >= 0; k--) { if (player.intersects(coins[k]) && !coins[k].collected) { coins[k].collect(); coinCount++; score += 2; updateScore(); } if (coins[k].collected && coins[k].alpha <= 0) { coins.splice(k, 1); } } // Check if player fell off screen if (player.y > 2732 || player.y < 0) { gameOver(); } } // Update score display function updateScore() { score = coinCount * 2; scoreTxt.setText('SCORE: ' + score); if (score > highScore) { highScore = score; storage.highScore = highScore; highScoreTxt.setText('HIGH SCORE: ' + highScore); } } // Game over function function gameOver() { LK.getSound('crash').play(); LK.effects.flashScreen(0xFF0000, 500); LK.showGameOver(); } // Game input handlers game.down = function (x, y, obj) { player.jump(); }; // Main game update loop game.update = function () { if (!gameRunning) { return; } // Update score updateScore(); // Update game entities player.update(); for (var i = 0; i < lanes.length; i++) { lanes[i].update(); } for (var j = vehicles.length - 1; j >= 0; j--) { vehicles[j].update(); // Remove vehicles that are far off screen if (vehicles[j].x < -500) { vehicles[j].destroy(); vehicles.splice(j, 1); } } for (var k = 0; k < coins.length; k++) { coins[k].update(); // Move coins with the game speed if they're not on a vehicle if (coins[k].x > -100) { coins[k].x -= 10; } else { coins[k].destroy(); coins.splice(k, 1); k--; } } // Check for collisions checkCollisions(); // Spawn vehicles spawnTimer++; if (spawnTimer >= 120) { spawnVehicle(); spawnTimer = 0; } // Spawn coins coinSpawnTimer++; if (coinSpawnTimer >= 180) { spawnCoin(); coinSpawnTimer = 0; } // Increase game difficulty over time if (LK.ticks % 600 === 0) { gameSpeed += 0.1; } }; // Start background music LK.playMusic('bgmusic', { fade: { start: 0, end: 0.4, duration: 1000 } });