/**** * Plugins ****/ var tween = LK.import("@upit/tween.v1"); var storage = LK.import("@upit/storage.v1", { highScore: 0, level: 1 }); /**** * Classes ****/ var Boss = Container.expand(function () { var self = Container.call(this); var bossGraphics = self.attachAsset('boss', { anchorX: 0.5, anchorY: 0.5, scaleX: 1.5, scaleY: 1.5 }); self.health = 300; self.maxHealth = 300; self.pointValue = 100; self.phase = 1; self.shootCooldown = 0; self.shootDelay = 60; // 1 second at 60 fps self.movementCounter = 0; self.speed = 1; self.takeDamage = function (amount) { self.health -= amount; LK.effects.flashObject(self, 0xff0000, 200); // Phase transitions if (self.health < self.maxHealth * 0.7 && self.phase === 1) { self.phase = 2; self.shootDelay = 45; // Faster attacks in phase 2 } else if (self.health < self.maxHealth * 0.3 && self.phase === 2) { self.phase = 3; self.shootDelay = 30; // Even faster attacks in phase 3 bossGraphics.tint = 0xff5555; // Visual indicator for final phase } }; self.update = function () { // Boss movement pattern if (self.phase === 1) { self.x += Math.sin(self.movementCounter * 0.02) * 2; if (self.y < 400) { self.y += 0.5; } } else if (self.phase === 2) { self.x += Math.sin(self.movementCounter * 0.03) * 3; self.y += Math.sin(self.movementCounter * 0.01) * 1; } else { self.x += Math.sin(self.movementCounter * 0.04) * 5; self.y += Math.sin(self.movementCounter * 0.02) * 2; } self.movementCounter++; // Update shoot cooldown if (self.shootCooldown > 0) { self.shootCooldown--; } }; return self; }); var Bullet = Container.expand(function () { var self = Container.call(this); var bulletGraphics = self.attachAsset('bullet', { anchorX: 0.5, anchorY: 0.5 }); self.speed = 12; self.damage = 10; self.direction = { x: 0, y: -1 }; self.update = function () { self.x += self.direction.x * self.speed; self.y += self.direction.y * self.speed; }; return self; }); var Enemy = Container.expand(function () { var self = Container.call(this); var enemyGraphics = self.attachAsset('enemy', { anchorX: 0.5, anchorY: 0.5 }); self.health = 30; self.speed = 2; self.pointValue = 10; self.movementPattern = 'direct'; // direct, zigzag, circle self.movementCounter = 0; self.shootCooldown = 0; self.shootDelay = 360; // 6 seconds at 60 fps self.takeDamage = function (amount) { self.health -= amount; LK.effects.flashObject(self, 0xff0000, 200); }; self.update = function () { // Movement patterns switch (self.movementPattern) { case 'direct': self.y += self.speed; break; case 'zigzag': self.y += self.speed; self.x += Math.sin(self.movementCounter * 0.05) * 3; self.movementCounter++; break; case 'circle': self.y += self.speed * 0.7; self.x += Math.sin(self.movementCounter * 0.03) * 4; self.movementCounter++; break; } // Update shoot cooldown if (self.shootCooldown > 0) { self.shootCooldown--; } }; return self; }); var EnemyBullet = Container.expand(function () { var self = Container.call(this); var bulletGraphics = self.attachAsset('enemyBullet', { anchorX: 0.5, anchorY: 0.5 }); self.speed = 8; self.damage = 5; self.direction = { x: 0, y: 1 }; self.update = function () { self.x += self.direction.x * self.speed; self.y += self.direction.y * self.speed; }; return self; }); var Player = Container.expand(function () { var self = Container.call(this); var playerGraphics = self.attachAsset('player', { anchorX: 0.5, anchorY: 0.5, scaleX: 1.5, scaleY: 1.5 }); self.health = 100; self.maxHealth = 100; self.shootCooldown = 0; self.shootDelay = 15; self.speed = 10; self.powerUpActive = false; self.powerUpTimer = 0; self.powerUpDuration = 300; // 5 seconds at 60 fps self.takeDamage = function (amount) { self.health -= amount; if (self.health <= 0) { self.health = 0; } LK.getSound('playerDamage').play(); LK.effects.flashObject(self, 0xff0000, 500); tween(playerGraphics, { alpha: 0.3 }, { duration: 100, onFinish: function onFinish() { tween(playerGraphics, { alpha: 1 }, { duration: 100 }); } }); }; self.activatePowerUp = function () { self.powerUpActive = true; self.powerUpTimer = self.powerUpDuration; playerGraphics.tint = 0x2ecc71; self.shootDelay = 7; // Faster shooting with power-up }; self.update = function () { // Update power-up status if (self.powerUpActive) { self.powerUpTimer--; if (self.powerUpTimer <= 0) { self.powerUpActive = false; playerGraphics.tint = 0xffffff; // Reset tint self.shootDelay = 15; // Reset shooting speed } } // Update shoot cooldown if (self.shootCooldown > 0) { self.shootCooldown--; } }; 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 = 0.05; self.update = function () { self.y += self.speed; self.rotation += self.rotationSpeed; }; return self; }); /**** * Initialize Game ****/ var game = new LK.Game({ backgroundColor: 0x000000 }); /**** * Game Code ****/ /**** * Game Description * * Welcome to the Ultimate Space Battle! In this thrilling game, you are the pilot of a powerful spaceship tasked with defending the galaxy from waves of enemy ships and formidable bosses. * Navigate through the arena, dodge enemy fire, and strategically shoot down foes to earn points. * Collect power-ups to enhance your ship's capabilities and survive the relentless onslaught. * Every fifth wave brings a challenging boss fight, testing your skills and reflexes. * Aim for the highest score and see if you can beat your personal best! ****/ game.setBackgroundColor(0x2c3e50); // Game variables var player; var bullets = []; var enemyBullets = []; var enemies = []; var powerUps = []; var boss = null; var isBossFight = false; var gameLevel = storage.level || 1; var score = 0; var wave = 1; var waveSize = 5 + (gameLevel - 1) * 2; var waveDelay = 180; // 3 seconds at 60fps var waveTimer = waveDelay; var lastMouseX = 0; var lastMouseY = 0; // Create arena background var arena = LK.getAsset('arena', { anchorX: 0.5, anchorY: 0.5, alpha: 0.3 }); arena.x = 2048 / 2; arena.y = 2732 / 2; game.addChild(arena); // Create player player = new Player(); player.x = 2048 / 2; player.y = 2732 - 300; game.addChild(player); // UI Elements var scoreTxt = new Text2('SCORE: 0', { size: 80, fill: 0xFFFFFF }); scoreTxt.anchor.set(0, 0); LK.gui.topRight.addChild(scoreTxt); var waveTxt = new Text2('WAVE: 1', { size: 80, fill: 0xFFFFFF }); waveTxt.anchor.set(1, 0); LK.gui.topLeft.addChild(waveTxt); waveTxt.x = 150; // Move away from the corner // Player Health Bar var healthBar = new Container(); var healthBarBg = LK.getAsset('bullet', { anchorX: 0, anchorY: 0.5, scaleX: 20, scaleY: 0.8 }); healthBarBg.tint = 0x333333; var healthBarFill = LK.getAsset('bullet', { anchorX: 0, anchorY: 0.5, scaleX: 20, scaleY: 0.8 }); healthBarFill.tint = 0x2ecc71; healthBar.addChild(healthBarBg); healthBar.addChild(healthBarFill); healthBar.y = 100; LK.gui.bottom.addChild(healthBar); var healthBar = new Container(); var healthBarBg = LK.getAsset('bullet', { anchorX: 0, anchorY: 0.5, scaleX: 20, scaleY: 0.8 }); healthBarBg.tint = 0x333333; var healthBarFill = LK.getAsset('bullet', { anchorX: 0, anchorY: 0.5, scaleX: 20, scaleY: 0.8 }); healthBarFill.tint = 0x2ecc71; healthBar.addChild(healthBarBg); healthBar.addChild(healthBarFill); healthBar.y = 100; LK.gui.bottom.addChild(healthBar); // Boss health bar (only visible during boss fights) var bossHealthBar = new Container(); var bossHealthBarBg = LK.getAsset('bullet', { anchorX: 0, anchorY: 0.5, scaleX: 30, scaleY: 1 }); bossHealthBarBg.tint = 0x333333; var bossHealthBarFill = LK.getAsset('bullet', { anchorX: 0, anchorY: 0.5, scaleX: 30, scaleY: 1 }); bossHealthBarFill.tint = 0xe74c3c; var bossLabel = new Text2('BOSS', { size: 60, fill: 0xFF0000 }); bossLabel.anchor.set(0.5, 0.5); bossLabel.y = -40; bossHealthBar.addChild(bossHealthBarBg); bossHealthBar.addChild(bossHealthBarFill); bossHealthBar.addChild(bossLabel); bossHealthBar.visible = false; bossHealthBar.y = 250; LK.gui.top.addChild(bossHealthBar); // Game functions function spawnWave() { var currentWaveSize = isBossFight ? 0 : waveSize; if (isBossFight) { // Spawn boss boss = new Boss(); boss.x = 2048 / 2; boss.y = 300; game.addChild(boss); // Show boss health bar bossHealthBar.visible = true; // Boss intro effect tween(boss, { scaleX: 1.2, scaleY: 1.2 }, { duration: 500, onFinish: function onFinish() { tween(boss, { scaleX: 1, scaleY: 1 }, { duration: 300 }); } }); } else { // Spawn regular enemies for (var i = 0; i < currentWaveSize; i++) { var enemy = new Enemy(); enemy.x = 200 + Math.random() * (2048 - 400); enemy.y = -100 - Math.random() * 300; // Assign random movement pattern var patterns = ['direct', 'zigzag', 'circle']; enemy.movementPattern = patterns[Math.floor(Math.random() * patterns.length)]; // Increase enemy difficulty with wave enemy.health += Math.floor(wave * 0.5); enemy.pointValue += Math.floor(wave * 0.2); if (wave > 3) { enemy.shootDelay = Math.max(60, 120 - wave * 5); // Enemies shoot faster in later waves } game.addChild(enemy); enemies.push(enemy); } } wave++; waveSize = 5 + Math.floor((wave - 1) * 1.5); waveTimer = waveDelay; // Update wave text waveTxt.setText('WAVE: ' + wave); } function spawnPowerUp() { if (Math.random() < 0.3) { // 30% chance to spawn power-up var powerUp = new PowerUp(); powerUp.x = 200 + Math.random() * (2048 - 400); powerUp.y = -50; game.addChild(powerUp); powerUps.push(powerUp); } } function playerShoot() { if (player.shootCooldown <= 0) { // Create bullet var bullet = new Bullet(); bullet.x = player.x; bullet.y = player.y - 50; if (player.powerUpActive) { // Triple shot when powered up var bulletLeft = new Bullet(); bulletLeft.x = player.x - 40; bulletLeft.y = player.y - 30; bulletLeft.direction = { x: -0.2, y: -0.8 }; var bulletRight = new Bullet(); bulletRight.x = player.x + 40; bulletRight.y = player.y - 30; bulletRight.direction = { x: 0.2, y: -0.8 }; game.addChild(bulletLeft); game.addChild(bulletRight); bullets.push(bulletLeft); bullets.push(bulletRight); } game.addChild(bullet); bullets.push(bullet); // Set cooldown player.shootCooldown = player.shootDelay; // Play sound LK.getSound('shoot').play(); } } function enemyShoot(enemy) { if (enemy.shootCooldown <= 0) { // Fire two bullets for (var i = 0; i < 2; i++) { var bullet = new EnemyBullet(); bullet.x = enemy.x; bullet.y = enemy.y + 50; // Aim at player var dx = player.x - enemy.x; var dy = player.y - enemy.y; var distance = Math.sqrt(dx * dx + dy * dy); bullet.direction = { x: dx / distance, y: dy / distance }; game.addChild(bullet); enemyBullets.push(bullet); } // Set cooldown enemy.shootCooldown = enemy.shootDelay; } } function bossShoot() { if (boss && boss.shootCooldown <= 0) { // Pattern depends on boss phase if (boss.phase === 1) { // Simple triple shot for (var i = -1; i <= 1; i++) { var bullet = new EnemyBullet(); bullet.x = boss.x + i * 60; bullet.y = boss.y + 60; game.addChild(bullet); enemyBullets.push(bullet); } } else if (boss.phase === 2) { // Spread shot for (var i = -2; i <= 2; i++) { var bullet = new EnemyBullet(); bullet.x = boss.x + i * 50; bullet.y = boss.y + 60; bullet.direction = { x: i * 0.2, y: 1 }; game.addChild(bullet); enemyBullets.push(bullet); } } else { // Circular burst for (var i = 0; i < 8; i++) { var angle = Math.PI * 2 / 8 * i; var bullet = new EnemyBullet(); bullet.x = boss.x; bullet.y = boss.y; bullet.direction = { x: Math.sin(angle), y: Math.cos(angle) }; game.addChild(bullet); enemyBullets.push(bullet); } // Also shoot directly at player var targetBullet = new EnemyBullet(); targetBullet.x = boss.x; targetBullet.y = boss.y; var dx = player.x - boss.x; var dy = player.y - boss.y; var distance = Math.sqrt(dx * dx + dy * dy); targetBullet.direction = { x: dx / distance, y: dy / distance }; game.addChild(targetBullet); enemyBullets.push(targetBullet); } // Set cooldown boss.shootCooldown = boss.shootDelay; } } // Handle player movement game.move = function (x, y, obj) { lastMouseX = x; lastMouseY = y; }; game.down = function (x, y, obj) { lastMouseX = x; lastMouseY = y; playerShoot(); }; game.up = function (x, y, obj) { // Nothing needed here }; // Main game update game.update = function () { // Play music if not already playing if (LK.ticks === 1) { LK.playMusic('battleMusic'); } // Move player toward touch/mouse position, but with smoothing if (lastMouseX !== 0 && lastMouseY !== 0) { var dx = lastMouseX - player.x; var dy = lastMouseY - player.y; // Apply movement with speed limit player.x += Math.min(Math.max(dx, -player.speed), player.speed); player.y += Math.min(Math.max(dy, -player.speed), player.speed); // Keep player in bounds player.x = Math.max(100, Math.min(2048 - 100, player.x)); player.y = Math.max(100, Math.min(2732 - 100, player.y)); } // Automatic shooting if (LK.ticks % player.shootDelay === 0) { playerShoot(); } // Update player player.update(); // Update player health bar healthBarFill.scaleX = 20 * (player.health / player.maxHealth); healthBarFill.tint = player.health > player.maxHealth * 0.6 ? 0x2ecc71 : player.health > player.maxHealth * 0.3 ? 0xf39c12 : 0xe74c3c; // Boss health bar update if (boss && bossHealthBar.visible) { bossHealthBarFill.scaleX = 30 * (boss.health / boss.maxHealth); } // Wave management if (enemies.length === 0 && !isBossFight && boss === null) { waveTimer--; if (waveTimer <= 0) { // Every 5 waves is a boss if (wave % 5 === 0) { isBossFight = true; } spawnWave(); // Chance to spawn power-up on new wave spawnPowerUp(); } } // Update bullets for (var i = bullets.length - 1; i >= 0; i--) { var bullet = bullets[i]; bullet.update(); // Check if bullet is off screen if (bullet.y < -50 || bullet.y > 2732 + 50 || bullet.x < -50 || bullet.x > 2048 + 50) { bullet.destroy(); bullets.splice(i, 1); continue; } // Check for collisions with enemies for (var j = enemies.length - 1; j >= 0; j--) { var enemy = enemies[j]; if (bullet.intersects(enemy)) { enemy.takeDamage(bullet.damage); bullet.destroy(); bullets.splice(i, 1); // Check if enemy is dead if (enemy.health <= 0) { score += enemy.pointValue; scoreTxt.setText('SCORE: ' + score); // Play enemy death sound LK.getSound('enemyDeath').play(); // Spawn power-up chance on enemy death if (Math.random() < 0.1) { // 10% chance var powerUp = new PowerUp(); powerUp.x = enemy.x; powerUp.y = enemy.y; game.addChild(powerUp); powerUps.push(powerUp); } // Remove enemy enemy.destroy(); enemies.splice(j, 1); } // Skip checking other enemies since this bullet is destroyed break; } } // Check for collision with boss if (!bullet.destroyed && boss && bullet.intersects(boss)) { boss.takeDamage(bullet.damage); bullet.destroy(); bullets.splice(i, 1); // Check if boss is dead if (boss.health <= 0) { score += boss.pointValue; scoreTxt.setText('SCORE: ' + score); // Play enemy death sound at higher volume var deathSound = LK.getSound('enemyDeath'); deathSound.volume = 0.8; deathSound.play(); // Boss death effect LK.effects.flashScreen(0xffffff, 500); // Remove boss boss.destroy(); boss = null; isBossFight = false; bossHealthBar.visible = false; // Level up! gameLevel++; storage.level = gameLevel; // If high score is beaten, save it if (score > storage.highScore) { storage.highScore = score; } } } } // Update enemy bullets for (var i = enemyBullets.length - 1; i >= 0; i--) { var bullet = enemyBullets[i]; bullet.update(); // Check if bullet is off screen if (bullet.y < -50 || bullet.y > 2732 + 50 || bullet.x < -50 || bullet.x > 2048 + 50) { bullet.destroy(); enemyBullets.splice(i, 1); continue; } // Check for collision with player if (bullet.intersects(player)) { player.takeDamage(bullet.damage); bullet.destroy(); enemyBullets.splice(i, 1); // Check if player is dead if (player.health <= 0) { // Game over! LK.effects.flashScreen(0xff0000, 1000); // If high score is beaten, save it if (score > storage.highScore) { storage.highScore = score; } LK.showGameOver(); return; } } } // Update enemies for (var i = enemies.length - 1; i >= 0; i--) { var enemy = enemies[i]; enemy.update(); // Check if enemy is off bottom of screen if (enemy.y > 2732 + 100) { enemy.destroy(); enemies.splice(i, 1); continue; } // Enemy shooting if (enemy.shootCooldown <= 0 && enemy.y > 0) { enemyShoot(enemy); } // Check for collision with player if (enemy.intersects(player)) { player.takeDamage(20); enemy.takeDamage(30); // Check if enemy is dead from collision if (enemy.health <= 0) { score += enemy.pointValue; scoreTxt.setText('SCORE: ' + score); // Play enemy death sound LK.getSound('enemyDeath').play(); // Remove enemy enemy.destroy(); enemies.splice(i, 1); } // Check if player is dead if (player.health <= 0) { // Game over! LK.effects.flashScreen(0xff0000, 1000); // If high score is beaten, save it if (score > storage.highScore) { storage.highScore = score; } LK.showGameOver(); return; } } } // Update power-ups for (var i = powerUps.length - 1; i >= 0; i--) { var powerUp = powerUps[i]; powerUp.update(); // Check if power-up is off bottom of screen if (powerUp.y > 2732 + 50) { powerUp.destroy(); powerUps.splice(i, 1); continue; } // Check for collision with player if (powerUp.intersects(player)) { // Activate power-up player.activatePowerUp(); // Play power-up sound LK.getSound('powerup').play(); // Remove power-up powerUp.destroy(); powerUps.splice(i, 1); } } // Update boss if (boss) { boss.update(); // Boss shooting bossShoot(); } };