/**** * Plugins ****/ var tween = LK.import("@upit/tween.v1"); /**** * Classes ****/ var Lane = Container.expand(function () { var self = Container.call(this); var laneGraphics = self.attachAsset('lane', { anchorX: 0.5, anchorY: 0.5 }); self.update = function () { self.y += scrollSpeed; }; return self; }); var Obstacle = Container.expand(function () { var self = Container.call(this); var obstacleGraphics = self.attachAsset('obstacle', { anchorX: 0.5, anchorY: 0.5 }); self.speed = 3; self.update = function () { self.y += self.speed + scrollSpeed; }; return self; }); var Player = Container.expand(function () { var self = Container.call(this); var playerGraphics = self.attachAsset('player', { anchorX: 0.5, anchorY: 0.5 }); self.speed = 0; self.maxSpeed = 8; self.acceleration = 0.3; self.deceleration = 0.5; self.isAccelerating = false; self.invulnerable = false; self.invulnerableTime = 0; self.startAcceleration = function () { self.isAccelerating = true; LK.getSound('engine').play(); }; self.stopAcceleration = function () { self.isAccelerating = false; LK.getSound('brake').play(); }; self.update = function () { if (self.isAccelerating) { self.speed = Math.min(self.speed + self.acceleration, self.maxSpeed); } else { self.speed = Math.max(self.speed - self.deceleration, 0); } // Handle invulnerability if (self.invulnerable) { self.invulnerableTime--; playerGraphics.alpha = self.invulnerableTime % 10 < 5 ? 0.5 : 1.0; if (self.invulnerableTime <= 0) { self.invulnerable = false; playerGraphics.alpha = 1.0; } } }; self.makeInvulnerable = function (duration) { self.invulnerable = true; self.invulnerableTime = duration; }; return self; }); var PowerUp = Container.expand(function () { var self = Container.call(this); var powerupGraphics = self.attachAsset('powerup', { anchorX: 0.5, anchorY: 0.5 }); self.speed = 3; self.rotationSpeed = 0.1; self.update = function () { self.y += self.speed + scrollSpeed; powerupGraphics.rotation += self.rotationSpeed; }; return self; }); /**** * Initialize Game ****/ var game = new LK.Game({ backgroundColor: 0x2c5f2d }); /**** * Game Code ****/ // Game variables var player; var obstacles = []; var powerups = []; var lanes = []; var scrollSpeed = 4; var gameSpeed = 1; var spawnTimer = 0; var powerupTimer = 0; var distance = 0; var lanePositions = [512, 768, 1024, 1280, 1536]; // 5 lanes var nextLevelDistance = 1000; // Background setup var backgroundImage = game.addChild(LK.getAsset('Background', { anchorX: 0, anchorY: 0, scaleX: 20.48, scaleY: 27.32 })); backgroundImage.x = 0; backgroundImage.y = 0; // UI Elements var scoreTxt = new Text2('Score: 0', { size: 60, fill: 0xFFFFFF }); scoreTxt.anchor.set(0, 0); scoreTxt.x = 120; scoreTxt.y = 50; LK.gui.topLeft.addChild(scoreTxt); var speedTxt = new Text2('Speed: 0', { size: 50, fill: 0xFFFFFF }); speedTxt.anchor.set(1, 0); speedTxt.x = -50; speedTxt.y = 50; LK.gui.topRight.addChild(speedTxt); var distanceTxt = new Text2('Distance: 0m', { size: 50, fill: 0xFFFFFF }); distanceTxt.anchor.set(0.5, 0); distanceTxt.x = 0; distanceTxt.y = 50; LK.gui.top.addChild(distanceTxt); // Initialize player player = game.addChild(new Player()); player.x = 1024; // Center lane player.y = 2200; // Initialize lane markers function createLaneMarkers() { for (var i = 0; i < 8; i++) { var lane = game.addChild(new Lane()); lane.x = 1024; lane.y = i * 400 - 200; lanes.push(lane); } } createLaneMarkers(); // Spawn obstacle function spawnObstacle() { var obstacle = game.addChild(new Obstacle()); obstacle.x = lanePositions[Math.floor(Math.random() * lanePositions.length)]; obstacle.y = -100; obstacles.push(obstacle); } // Spawn powerup function spawnPowerUp() { var powerup = game.addChild(new PowerUp()); powerup.x = lanePositions[Math.floor(Math.random() * lanePositions.length)]; powerup.y = -100; powerups.push(powerup); } // Handle player movement function handlePlayerMovement(x, y, obj) { // Calculate which lane the touch is in var targetLane = 2; // Default to center if (x < 640) targetLane = 0;else if (x < 896) targetLane = 1;else if (x < 1152) targetLane = 2;else if (x < 1408) targetLane = 3;else targetLane = 4; // Move player to target lane tween(player, { x: lanePositions[targetLane] }, { duration: 200, easing: tween.easeOut }); } // Create Start button var startButton = new Text2('START', { size: 80, fill: 0x00FF00 }); startButton.anchor.set(0.5, 0.5); startButton.x = -200; startButton.y = -100; LK.gui.bottom.addChild(startButton); // Create Slow button var slowButton = new Text2('SLOW', { size: 80, fill: 0xFF0000 }); slowButton.anchor.set(0.5, 0.5); slowButton.x = 200; slowButton.y = -100; LK.gui.bottom.addChild(slowButton); // Start button functionality startButton.down = function (x, y, obj) { player.startAcceleration(); }; // Slow button functionality slowButton.down = function (x, y, obj) { player.stopAcceleration(); }; // Game controls for lane switching game.down = function (x, y, obj) { // Only handle lane movement, buttons handle speed handlePlayerMovement(x, y, obj); }; game.move = function (x, y, obj) { // Handle lane movement during drag handlePlayerMovement(x, y, obj); }; // Main game loop game.update = function () { // Update distance and score distance += scrollSpeed; LK.setScore(Math.floor(distance / 10)); // Update UI scoreTxt.setText('Score: ' + LK.getScore()); speedTxt.setText('Speed: ' + Math.floor(player.speed)); distanceTxt.setText('Distance: ' + Math.floor(distance / 10) + 'm'); // Increase difficulty over time if (distance > nextLevelDistance) { gameSpeed += 0.1; scrollSpeed = Math.min(scrollSpeed + 0.5, 10); nextLevelDistance += 1000; } // Spawn obstacles spawnTimer++; if (spawnTimer > Math.max(60 - gameSpeed * 5, 20)) { spawnObstacle(); spawnTimer = 0; } // Spawn powerups powerupTimer++; if (powerupTimer > 300) { spawnPowerUp(); powerupTimer = 0; } // Update and check obstacles for (var i = obstacles.length - 1; i >= 0; i--) { var obstacle = obstacles[i]; // Track last position for off-screen detection if (obstacle.lastY === undefined) obstacle.lastY = obstacle.y; // Remove off-screen obstacles if (obstacle.lastY < 2800 && obstacle.y >= 2800) { obstacle.destroy(); obstacles.splice(i, 1); continue; } // Check collision with player if (!player.invulnerable && obstacle.intersects(player)) { LK.getSound('crash').play(); LK.effects.flashScreen(0xff0000, 500); LK.showGameOver(); return; } obstacle.lastY = obstacle.y; } // Update and check powerups for (var j = powerups.length - 1; j >= 0; j--) { var powerup = powerups[j]; // Track last position for off-screen detection if (powerup.lastY === undefined) powerup.lastY = powerup.y; // Remove off-screen powerups if (powerup.lastY < 2800 && powerup.y >= 2800) { powerup.destroy(); powerups.splice(j, 1); continue; } // Check collection if (powerup.intersects(player)) { LK.getSound('powerup').play(); LK.setScore(LK.getScore() + 50); player.makeInvulnerable(180); // 3 seconds of invulnerability powerup.destroy(); powerups.splice(j, 1); continue; } powerup.lastY = powerup.y; } // Update and recycle lane markers for (var k = lanes.length - 1; k >= 0; k--) { var lane = lanes[k]; // Track last position for recycling if (lane.lastY === undefined) lane.lastY = lane.y; // Recycle lane markers that go off screen if (lane.lastY < 2800 && lane.y >= 2800) { lane.y = -200; } lane.lastY = lane.y; } // Win condition - reach 5000m if (distance >= 50000) { LK.showYouWin(); } };