var Explosion = Container.expand(function () { var self = Container.call(this); var explosionGraphics = self.createAsset('explosion', 'Explosion Graphics', .5, .5); self.animationDuration = 10; self.tickCount = 0; self.on('tick', function () { self.tickCount++; if (self.tickCount > self.animationDuration) { self.destroy(); } }); }); var ParallaxBackground = Container.expand(function (layers, speed) { var self = Container.call(this); self.layers = layers.map(function (layerInfo) { var layer = self.createAsset(layerInfo.id, layerInfo.description, 0.5, 0.5); layer.speed = layerInfo.speed; self.addChild(layer); return layer; }); self.move = function () { self.layers.forEach(function (layer) { layer.y += layer.speed; if (layer.y >= 2732 + 1000) { layer.y -= 2732 * 2; } layer.x = 2048 - layer.width + 1000; }); }; }); var HealthPickup = Container.expand(function () { var self = Container.call(this); self.creationTime = LK.ticks; var pickupGraphics = self.createAsset('healthPickup', 'Health Pickup', .5, .5); self.restoreAmount = 10; self.move = function () { self.y += 2; }; self.applyToHero = function (hero) { hero.health = Math.min(hero.health + self.restoreAmount, hero.healthBar.maxHealth); hero.healthBar.updateHealth(hero.health); }; }); var HealthBar = Container.expand(function (maxHealth) { var self = Container.call(this); var background = self.createAsset('healthBarBackground', 'Health Bar Background', 0, 0.5); var foreground = self.createAsset('healthBarForeground', 'Health Bar Foreground', 0, 0.5); self.setMaxHealth = function (maxHealth) { self.maxHealth = maxHealth; self.currentHealth = maxHealth; }; self.updateHealth = function (currentHealth) { self.currentHealth = currentHealth; var scale = currentHealth / self.maxHealth; foreground.scale.x = scale > 0 ? scale : 0; }; self.setMaxHealth(maxHealth); }); var Hero = Container.expand(function () { var self = Container.call(this); var heroGraphics = self.createAsset('hero', 'Hero character', .5, .5); self.healthBar = new HealthBar(100); self.healthBar.x = 10; self.healthBar.y = 10; LK.gui.topLeft.addChild(self.healthBar); self.speed = 5; self.health = 100; self.healthBar.setMaxHealth(self.health); self.healthBar.updateHealth(self.health); self.move = function () { if (self.y + self.speed > 0) { if (self.y + self.speed < 2732) { self.y += self.speed; } } }; }); var Enemy = Container.expand(function () { var self = Container.call(this); var enemyGraphics = self.createAsset('enemy', 'Enemy character', .5, .5); self.baseSpeed = -3.6; self.move = function () { self.y -= self.baseSpeed; }; }); var HeroBullet = Container.expand(function () { var self = Container.call(this); var bulletGraphics = self.createAsset('heroBullet', 'Hero Bullet', .5, .5); self.speed = 12; self.move = function () { self.y -= self.speed; }; }); var EnemyBullet = Container.expand(function () { var self = Container.call(this); var bulletGraphics = self.createAsset('enemyBullet', 'Enemy Bullet', .5, .5); self.baseSpeed = -12; self.move = function () { self.y -= self.baseSpeed; }; }); var Game = Container.expand(function () { var self = Container.call(this); var backgroundLayers = [{ id: 'backgroundFar', description: 'Far Background', speed: 0.5 }, { id: 'backgroundMid', description: 'Mid Background', speed: 1 }, { id: 'backgroundNear', description: 'Near Background', speed: 1.5 }]; var parallaxBackground = self.addChild(new ParallaxBackground(backgroundLayers, 2)); var hero = self.addChild(new Hero()); var enemies = []; var heroBullets = []; var enemyBullets = []; var score = 0; var scoreTxt = new Text2('0', { size: 150, fill: "#ffffff" }); LK.gui.topCenter.addChild(scoreTxt); hero.x = 200; hero.y = 2732 / 2; LK.on('tick', function () { var LEFT = 37, UP = 38, RIGHT = 39, DOWN = 40; LK.stage.on('move', function (obj) { var touchPos = obj.event.getLocalPosition(self); hero.x = touchPos.x; hero.y = touchPos.y; }); if (hero.x < 0) hero.x = 0; if (hero.x > 2048 - hero.width) hero.x = 2048 - hero.width; if (hero.y < 0) hero.y = 0; if (hero.y > 2732 - hero.height) hero.y = 2732 - hero.height; parallaxBackground.move(); hero.move(); self.children.forEach(function (child) { if (child instanceof HealthPickup) { if (hero.intersects(child)) { child.applyToHero(hero); child.destroy(); } else if (child.y > 2732 + 50 || LK.ticks - child.creationTime > 300) { child.destroy(); } } else if (child instanceof Explosion && LK.ticks % 5 === 0) { child.destroy(); } }); for (var i = 0; i < enemies.length; i++) { enemies[i].move(); if (hero.intersects(enemies[i])) { hero.health -= 20; hero.healthBar.updateHealth(hero.health); if (hero.health <= 0) { LK.showGameOver(); } enemies[i].destroy(); enemies.splice(i, 1); continue; } if (enemies[i].y > 2732 + 50) { enemies[i].destroy(); enemies.splice(i, 1); scoreTxt.setText(score); } } for (var i = 0; i < heroBullets.length; i++) { heroBullets[i].move(); for (var j = 0; j < enemyBullets.length; j++) { if (heroBullets[i].intersects(enemyBullets[j])) { heroBullets[i].destroy(); enemyBullets[j].destroy(); heroBullets.splice(i, 1); enemyBullets.splice(j, 1); i--; break; } } for (var j = 0; j < enemies.length; j++) { if (heroBullets[i] && heroBullets[i].intersects(enemies[j])) { var explosion = new Explosion(); explosion.x = enemies[j].x; explosion.y = enemies[j].y; self.addChild(explosion); enemies[j].destroy(); if (Math.random() < 0.05) { var pickup = new HealthPickup(); pickup.x = enemies[j].x; pickup.y = enemies[j].y - pickup.height; self.addChild(pickup); } enemies.splice(j, 1); score += 10; scoreTxt.setText(score); heroBullets[i].destroy(); heroBullets.splice(i, 1); i--; break; } } if (heroBullets[i] && heroBullets[i].y < -50) { heroBullets[i].destroy(); heroBullets.splice(i, 1); } } for (var i = 0; i < enemyBullets.length; i++) { enemyBullets[i].move(); if (hero.intersects(enemyBullets[i])) { hero.health -= 20; hero.healthBar.updateHealth(hero.health); if (hero.health <= 0) { LK.showGameOver(); } enemyBullets[i].destroy(); enemyBullets.splice(i, 1); continue; } if (enemyBullets[i].y > 2732 + 50) { enemyBullets[i].destroy(); enemyBullets.splice(i, 1); } } }); hero.canShoot = true; hero.shootCooldown = 12; hero.lastShotTime = 0; hero.on('down', function (obj) { if (hero.canShoot) { var bullet = new HeroBullet(); bullet.x = hero.x; bullet.y = hero.y; heroBullets.push(bullet); self.addChild(bullet); hero.canShoot = false; hero.lastShotTime = LK.ticks; } }); LK.on('tick', function () { if (!hero.canShoot && LK.ticks - hero.lastShotTime > hero.shootCooldown) { hero.canShoot = true; } }); var startTime = Date.now(); var enemySpawnInterval = 2000; var maxEnemies = 5; var enemySpeedIncreaseTimer = LK.setInterval(function () { Enemy.prototype.baseSpeed *= 1.05; EnemyBullet.prototype.baseSpeed *= 1.05; }, 30000); var enemySpawnTimer = LK.setInterval(function () { var currentTime = Date.now(); var elapsedTime = (currentTime - startTime) / 60000; maxEnemies = 5 + Math.floor(elapsedTime); if (enemies.length < maxEnemies) { var enemy = new Enemy(); var enemyWidth = enemy.width; enemy.x = Math.random() * (2048 - enemyWidth) + enemyWidth / 2; enemy.y = -50; enemies.push(enemy); self.addChild(enemy); } }, enemySpawnInterval); LK.setInterval(function () { if (Math.random() < 0.1) { var pickup = new HealthPickup(); pickup.x = Math.random() * (2048 - pickup.width) + pickup.width / 2; pickup.y = -50; self.addChild(pickup); } else { var enemyIndex = Math.floor(Math.random() * enemies.length); var bullet = new EnemyBullet(); bullet.x = enemies[enemyIndex].x; bullet.y = enemies[enemyIndex].y; enemyBullets.push(bullet); self.addChild(bullet); } }, 2000); });