/**** * Plugins ****/ var tween = LK.import("@upit/tween.v1"); var storage = LK.import("@upit/storage.v1", { highScore: 0, totalKills: 0 }); /**** * Classes ****/ var Bullet = Container.expand(function () { var self = Container.call(this); var bulletGraphics = self.attachAsset('bullet', { anchorX: 0.5, anchorY: 0.5 }); self.speed = 20; self.dirX = 0; self.dirY = 0; self.damage = 10; self.update = function () { self.x += self.dirX * self.speed; self.y += self.dirY * self.speed; }; return self; }); var Powerup = Container.expand(function (type) { var self = Container.call(this); self.type = type || 'health'; var assetId; switch (self.type) { case 'health': assetId = 'healthPack'; break; case 'ammo': assetId = 'ammoPack'; break; case 'rapidFire': assetId = 'rapidFirePowerup'; break; case 'damageBoost': assetId = 'damageBoostPowerup'; break; } var powerupGraphics = self.attachAsset(assetId, { anchorX: 0.5, anchorY: 0.5 }); self.lifespan = 300; // 5 seconds at 60fps self.update = function () { self.lifespan--; // Make powerup blink when about to expire if (self.lifespan < 60) { self.visible = LK.ticks % 10 < 5; } }; return self; }); var Survivor = Container.expand(function () { var self = Container.call(this); var survivorGraphics = self.attachAsset('survivor', { anchorX: 0.5, anchorY: 0.5 }); self.health = 100; self.maxHealth = 100; self.ammo = 30; self.maxAmmo = 30; self.speed = 10; self.fireRate = 10; // Ticks between shots self.fireCooldown = 0; self.damageMultiplier = 1; self.rapidFireTimer = 0; self.damageBoostTimer = 0; self.move = function (direction) { if (direction.x) { self.x += direction.x * self.speed; } if (direction.y) { self.y += direction.y * self.speed; } // Keep player within game bounds if (self.x < 50) { self.x = 50; } if (self.x > 2048 - 50) { self.x = 2048 - 50; } if (self.y < 50) { self.y = 50; } if (self.y > 2732 - 50) { self.y = 2732 - 50; } }; self.shoot = function (targetX, targetY) { if (self.ammo <= 0 || self.fireCooldown > 0) { return null; } self.ammo--; self.fireCooldown = self.rapidFireTimer > 0 ? Math.floor(self.fireRate / 2) : self.fireRate; var bullet = new Bullet(); bullet.x = self.x; bullet.y = self.y; // Calculate direction vector var dirX = targetX - self.x; var dirY = targetY - self.y; // Normalize direction var length = Math.sqrt(dirX * dirX + dirY * dirY); bullet.dirX = dirX / length; bullet.dirY = dirY / length; // Set damage based on player's current damage multiplier bullet.damage = 10 * self.damageMultiplier; LK.getSound('shoot').play(); return bullet; }; self.takeDamage = function (amount) { self.health -= amount; LK.getSound('playerHit').play(); // Flash player red when taking damage LK.effects.flashObject(self, 0xff0000, 300); if (self.health <= 0) { self.health = 0; return true; // Player is dead } return false; }; self.collectPowerup = function (type) { LK.getSound('powerup').play(); switch (type) { case 'health': self.health = Math.min(self.health + 25, self.maxHealth); break; case 'ammo': self.ammo = Math.min(self.ammo + 15, self.maxAmmo); break; case 'rapidFire': self.rapidFireTimer = 300; // 5 seconds at 60fps LK.effects.flashObject(self, 0x9b59b6, 300); break; case 'damageBoost': self.damageMultiplier = 2; self.damageBoostTimer = 300; // 5 seconds at 60fps LK.effects.flashObject(self, 0xe67e22, 300); break; } }; self.update = function () { if (self.fireCooldown > 0) { self.fireCooldown--; } if (self.rapidFireTimer > 0) { self.rapidFireTimer--; if (self.rapidFireTimer === 0) { // End rapid fire effect } } if (self.damageBoostTimer > 0) { self.damageBoostTimer--; if (self.damageBoostTimer === 0) { self.damageMultiplier = 1; } } }; return self; }); var Zombie = Container.expand(function () { var self = Container.call(this); var zombieGraphics = self.attachAsset('zombie', { anchorX: 0.5, anchorY: 0.5 }); self.health = 30; self.speed = 3; self.damage = 10; self.attackCooldown = 0; self.attackRate = 30; // Ticks between attacks self.update = function () { if (self.attackCooldown > 0) { self.attackCooldown--; } // Movement is handled in the game update function }; self.takeDamage = function (amount) { self.health -= amount; LK.getSound('zombieHit').play(); // Flash zombie green when taking damage LK.effects.flashObject(self, 0xff0000, 200); if (self.health <= 0) { return true; // Zombie is dead } return false; }; self.canAttack = function () { return self.attackCooldown === 0; }; self.attack = function () { self.attackCooldown = self.attackRate; return self.damage; }; return self; }); /**** * Initialize Game ****/ var game = new LK.Game({ backgroundColor: 0x1a1a1a }); /**** * Game Code ****/ // Game state variables var player; var zombies = []; var bullets = []; var powerups = []; var direction = { x: 0, y: 0 }; var targetX = 0; var targetY = 0; var isShooting = false; var wave = 1; var zombiesKilled = 0; var waveZombies = 5; // Starting zombies per wave var score = 0; var gameOver = false; var powerupSpawnChance = 0.01; // 1% chance per tick to spawn a powerup // UI elements var scoreText; var waveText; var healthBar; var ammoText; var gameOverText; // Initialize game function initGame() { // Create player player = new Survivor(); player.x = 2048 / 2; player.y = 2732 / 2; game.addChild(player); // Initialize UI elements createUI(); // Start first wave startWave(wave); // Start background music LK.playMusic('gameMusic'); } function createUI() { // Score text scoreText = new Text2('Score: 0', { size: 90, fill: 0xFFFFFF }); scoreText.anchor.set(0, 0); scoreText.x = 50; scoreText.y = 50; LK.gui.addChild(scoreText); // Wave text waveText = new Text2('Wave: 1', { size: 90, fill: 0xFFFFFF }); waveText.anchor.set(1, 0); waveText.x = 2048 - 50; waveText.y = 50; LK.gui.addChild(waveText); // Health bar healthBar = new Container(); var healthBarBg = LK.getAsset('bullet', { anchorX: 0, anchorY: 0, width: 600, height: 45, tint: 0x333333 }); var healthBarFill = LK.getAsset('bullet', { anchorX: 0, anchorY: 0, width: 600, height: 45, tint: 0xe74c3c }); healthBar.addChild(healthBarBg); healthBar.addChild(healthBarFill); healthBar.fillBar = healthBarFill; healthBar.x = 50; healthBar.y = 120; LK.gui.addChild(healthBar); // Ammo text ammoText = new Text2('Ammo: 30/30', { size: 60, fill: 0xFFFFFF }); ammoText.anchor.set(0, 0); ammoText.x = 50; ammoText.y = 160; LK.gui.addChild(ammoText); // Shoot button var shootButton = new Container(); var shootButtonBg = LK.getAsset('bullet', { anchorX: 0.5, anchorY: 0.5, width: 200, height: 200, tint: 0x3498db }); shootButton.addChild(shootButtonBg); shootButton.x = 2048 - 100; shootButton.y = 2732 - 100; shootButton.interactive = true; shootButton.on('down', function () { isShooting = true; }); shootButton.on('up', function () { isShooting = false; }); LK.gui.addChild(shootButton); } function startWave(waveNumber) { wave = waveNumber; waveZombies = 5 + (wave - 1) * 3; waveText.setText('Wave: ' + wave); // Spawn initial zombies for (var i = 0; i < Math.min(waveZombies, 10); i++) { spawnZombie(); } } function spawnZombie() { var zombie = new Zombie(); // Determine spawn location (outside the screen) var side = Math.floor(Math.random() * 4); // 0: top, 1: right, 2: bottom, 3: left switch (side) { case 0: // Top zombie.x = Math.random() * 2048; zombie.y = -100; break; case 1: // Right zombie.x = 2048 + 100; zombie.y = Math.random() * 2732; break; case 2: // Bottom zombie.x = Math.random() * 2048; zombie.y = 2732 + 100; break; case 3: // Left zombie.x = -100; zombie.y = Math.random() * 2732; break; } // Adjust zombie difficulty based on wave zombie.health = 30 + (wave - 1) * 10; zombie.speed = 3 + (wave - 1) * 0.2; if (wave > 5) { zombie.damage = 10 + (wave - 5) * 2; } game.addChild(zombie); zombies.push(zombie); } function spawnPowerup() { // Determine random position on screen var x = 100 + Math.random() * (2048 - 200); var y = 100 + Math.random() * (2732 - 200); // Determine powerup type var types = ['health', 'ammo', 'rapidFire', 'damageBoost']; var type = types[Math.floor(Math.random() * types.length)]; var powerup = new Powerup(type); powerup.x = x; powerup.y = y; game.addChild(powerup); powerups.push(powerup); } function updateUI() { // Update score scoreText.setText('Score: ' + score); // Update health bar var healthPercent = player.health / player.maxHealth; healthBar.fillBar.width = 400 * healthPercent; // Update ammo text ammoText.setText('Ammo: ' + player.ammo + '/' + player.maxAmmo); } // Mouse/Touch input handlers game.down = function (x, y, obj) { targetX = x; targetY = y; isShooting = true; }; game.move = function (x, y, obj) { targetX = x; targetY = y; }; game.up = function (x, y, obj) { isShooting = false; }; // Main game update loop game.update = function () { if (gameOver) { return; } // Update player player.update(); // Handle player movement based on touch position // Move player toward touch point var dx = targetX - player.x; var dy = targetY - player.y; var distance = Math.sqrt(dx * dx + dy * dy); if (distance > 0) { // Normalize direction direction.x = dx / distance; direction.y = dy / distance; // Rotate player to face the target player.rotation = Math.atan2(dy, dx); // Move player towards the target player.move(direction); } // Try to shoot only if the shoot button is pressed if (isShooting && player.fireCooldown === 0 && player.ammo > 0) { var bullet = player.shoot(targetX, targetY); if (bullet) { game.addChild(bullet); bullets.push(bullet); } } // Update zombies for (var i = zombies.length - 1; i >= 0; i--) { var zombie = zombies[i]; zombie.update(); // Move zombie towards player var dx = player.x - zombie.x; var dy = player.y - zombie.y; var distance = Math.sqrt(dx * dx + dy * dy); if (distance > 0) { zombie.x += dx / distance * zombie.speed; zombie.y += dy / distance * zombie.speed; } // Check for collision with player if (zombie.intersects(player)) { if (zombie.canAttack()) { var damage = zombie.attack(); var playerDead = player.takeDamage(damage); if (playerDead) { handleGameOver(); return; } } } } // 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.x < -50 || bullet.x > 2048 + 50 || bullet.y < -50 || bullet.y > 2732 + 50) { game.removeChild(bullet); bullets.splice(i, 1); continue; } // Check for collisions with zombies var hitZombie = false; for (var j = zombies.length - 1; j >= 0; j--) { var zombie = zombies[j]; if (bullet.intersects(zombie)) { hitZombie = true; var zombieDead = zombie.takeDamage(bullet.damage); if (zombieDead) { game.removeChild(zombie); zombies.splice(j, 1); zombiesKilled++; score += 100 * wave; // Spawn more zombies if needed for the current wave if (zombies.length + zombiesKilled < waveZombies) { spawnZombie(); } // Check if wave is complete if (zombiesKilled >= waveZombies && zombies.length === 0) { zombiesKilled = 0; wave++; startWave(wave); // Give player ammo bonus between waves player.ammo = Math.min(player.ammo + 15, player.maxAmmo); // Give player health bonus between waves player.health = Math.min(player.health + 20, player.maxHealth); } } break; } } if (hitZombie) { game.removeChild(bullet); bullets.splice(i, 1); } } // Update powerups for (var i = powerups.length - 1; i >= 0; i--) { var powerup = powerups[i]; powerup.update(); // Check if powerup expired if (powerup.lifespan <= 0) { game.removeChild(powerup); powerups.splice(i, 1); continue; } // Check for collision with player if (powerup.intersects(player)) { player.collectPowerup(powerup.type); game.removeChild(powerup); powerups.splice(i, 1); } } // Random chance to spawn powerup if (Math.random() < powerupSpawnChance && powerups.length < 3) { spawnPowerup(); } // Update UI updateUI(); }; function handleGameOver() { gameOver = true; // Save high score if (score > storage.highScore) { storage.highScore = score; } // Update total kills storage.totalKills += zombiesKilled; // Show game over screen LK.showGameOver(); } // Initialize the game initGame();