/**** * Plugins ****/ var tween = LK.import("@upit/tween.v1"); /**** * Classes ****/ var Dog = Container.expand(function () { var self = Container.call(this); var dogGraphics = self.attachAsset('dog', { anchorX: 0.5, anchorY: 1.0 }); return self; }); var Obstacle = Container.expand(function (type) { var self = Container.call(this); self.obstacleType = type || 'car'; var obstacleGraphics; if (self.obstacleType === 'car') { obstacleGraphics = self.attachAsset('car', { anchorX: 0.5, anchorY: 1.0 }); } else if (self.obstacleType === 'tallCar') { obstacleGraphics = self.attachAsset('tallCar', { anchorX: 0.5, anchorY: 1.0 }); } else if (self.obstacleType === 'gnome') { obstacleGraphics = self.attachAsset('gnome', { anchorX: 0.5, anchorY: 1.0 }); } else if (self.obstacleType === 'fence') { obstacleGraphics = self.attachAsset('fence', { anchorX: 0.5, anchorY: 1.0 }); } self.speed = -8; self.update = function () { self.x += self.speed; }; 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 = -8; self.collected = false; self.update = function () { self.x += self.speed; self.rotation += 0.1; }; return self; }); var Walter = Container.expand(function () { var self = Container.call(this); var walterGraphics = self.attachAsset('walter', { anchorX: 0.5, anchorY: 1.0 }); self.velocityY = 0; self.groundY = 0; self.isJumping = false; self.jumpPower = -25; self.gravity = 1.2; self.invulnerable = false; self.invulnerabilityTime = 0; self.jump = function () { if (!self.isJumping) { self.velocityY = self.jumpPower; self.isJumping = true; LK.getSound('jump').play(); } }; self.update = function () { if (self.isJumping) { self.velocityY += self.gravity; self.y += self.velocityY; if (self.y >= self.groundY) { self.y = self.groundY; self.velocityY = 0; self.isJumping = false; } } if (self.invulnerable && self.invulnerabilityTime > 0) { self.invulnerabilityTime--; walterGraphics.alpha = self.invulnerabilityTime % 10 < 5 ? 0.5 : 1.0; if (self.invulnerabilityTime <= 0) { self.invulnerable = false; walterGraphics.alpha = 1.0; } } }; return self; }); /**** * Initialize Game ****/ var game = new LK.Game({ backgroundColor: 0x87CEEB }); /**** * Game Code ****/ var gameSpeed = 8; var distance = 0; var obstacles = []; var powerups = []; var lives = 3; var speedBoostTime = 0; var lastObstacleX = 2048; var lastPowerupX = 2048; // Create ground var ground = game.addChild(LK.getAsset('ground', { anchorX: 0, anchorY: 1.0, x: 0, y: 2732 - 100 })); var groundY = ground.y - ground.height; // Create Walter var walter = game.addChild(new Walter()); walter.x = 300; walter.y = groundY; walter.groundY = groundY; // Create Dog var dog = game.addChild(new Dog()); dog.x = -200; dog.y = groundY; // Create UI var scoreText = new Text2('Distance: 0m', { size: 60, fill: 0xFFFFFF }); scoreText.anchor.set(0, 0); LK.gui.topRight.addChild(scoreText); var livesText = new Text2('Lives: 3', { size: 60, fill: 0xFFFFFF }); livesText.anchor.set(0, 0); livesText.x = -400; LK.gui.topRight.addChild(livesText); var instructionText = new Text2('TAP TO JUMP!', { size: 80, fill: 0xFFFF00 }); instructionText.anchor.set(0.5, 0.5); LK.gui.center.addChild(instructionText); // Hide instruction after 3 seconds LK.setTimeout(function () { if (instructionText.parent) { instructionText.parent.removeChild(instructionText); } }, 3000); function spawnObstacle() { if (lastObstacleX <= 1500) { var obstacleTypes = ['car', 'tallCar', 'gnome', 'fence']; var randomType = obstacleTypes[Math.floor(Math.random() * obstacleTypes.length)]; var obstacle = new Obstacle(randomType); obstacle.x = 2048 + 100; obstacle.y = groundY; obstacle.speed = -gameSpeed; obstacles.push(obstacle); game.addChild(obstacle); lastObstacleX = obstacle.x; } } function spawnPowerup() { if (Math.random() < 0.3 && lastPowerupX <= 1000) { var powerup = new PowerUp(); powerup.x = 2048 + 50; powerup.y = groundY - 50; powerup.speed = -gameSpeed; powerups.push(powerup); game.addChild(powerup); lastPowerupX = powerup.x; } } function checkCollisions() { // Check obstacle collisions for (var i = obstacles.length - 1; i >= 0; i--) { var obstacle = obstacles[i]; if (walter.intersects(obstacle) && !walter.invulnerable) { LK.getSound('crash').play(); lives--; livesText.setText('Lives: ' + lives); if (lives <= 0) { LK.showGameOver(); return; } walter.invulnerable = true; walter.invulnerabilityTime = 120; // 2 seconds at 60fps LK.effects.flashScreen(0xFF0000, 500); } if (obstacle.x < -200) { obstacle.destroy(); obstacles.splice(i, 1); } } // Check powerup collisions for (var j = powerups.length - 1; j >= 0; j--) { var powerup = powerups[j]; if (walter.intersects(powerup) && !powerup.collected) { LK.getSound('collect').play(); powerup.collected = true; speedBoostTime = 300; // 5 seconds boost LK.effects.flashObject(walter, 0xFFD700, 500); powerup.destroy(); powerups.splice(j, 1); continue; } if (powerup.x < -100) { powerup.destroy(); powerups.splice(j, 1); } } } function updateDog() { var targetX = walter.x - 400; if (dog.x < targetX) { dog.x += 3; } // Check if dog catches Walter if (dog.intersects(walter) && !walter.invulnerable) { LK.effects.flashScreen(0xFF0000, 1000); LK.showGameOver(); } } game.down = function (x, y, obj) { walter.jump(); }; game.update = function () { // Update distance and speed distance += gameSpeed * 0.1; gameSpeed += 0.002; // Gradually increase speed // Update speed boost if (speedBoostTime > 0) { speedBoostTime--; gameSpeed *= 1.5; } // Update obstacle speeds for (var i = 0; i < obstacles.length; i++) { obstacles[i].speed = -gameSpeed; } for (var j = 0; j < powerups.length; j++) { powerups[j].speed = -gameSpeed; } // Update last obstacle position if (obstacles.length > 0) { lastObstacleX = obstacles[obstacles.length - 1].x; } else { lastObstacleX = 0; } // Update last powerup position if (powerups.length > 0) { lastPowerupX = powerups[powerups.length - 1].x; } else { lastPowerupX = 0; } // Spawn obstacles and powerups if (LK.ticks % 60 === 0) { // Every second spawnObstacle(); spawnPowerup(); } // Update game objects updateDog(); checkCollisions(); // Update UI scoreText.setText('Distance: ' + Math.floor(distance) + 'm'); // Update score for leaderboard LK.setScore(Math.floor(distance)); };