/**** * Plugins ****/ var tween = LK.import("@upit/tween.v1"); /**** * Classes ****/ var Bullet = Container.expand(function (damage, speed, isEnemy) { var self = Container.call(this); self.damage = damage || 25; self.speed = speed || 8; self.isEnemy = isEnemy || false; var bulletGraphics = self.attachAsset(isEnemy ? 'enemyBullet' : 'bullet', { anchorX: 0.5, anchorY: 0.5 }); self.direction = { x: 0, y: 0 }; 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 = 75; self.maxHealth = 75; self.speed = 2; self.lastFired = 0; self.fireRate = 60; self.detectionRange = 300; self.damage = 20; self.update = function () { var dx = player.x - self.x; var dy = player.y - self.y; var distance = Math.sqrt(dx * dx + dy * dy); if (distance < self.detectionRange) { // Move towards player var moveX = dx / distance * self.speed; var moveY = dy / distance * self.speed; self.x += moveX; self.y += moveY; // Fire at player if (LK.ticks - self.lastFired >= self.fireRate) { var bullet = new Bullet(self.damage, 6, true); bullet.x = self.x; bullet.y = self.y; bullet.direction.x = dx / distance; bullet.direction.y = dy / distance; enemyBullets.push(bullet); game.addChild(bullet); self.lastFired = LK.ticks; } } }; return self; }); var Item = Container.expand(function (type) { var self = Container.call(this); self.type = type; var itemGraphics = self.attachAsset(type, { anchorX: 0.5, anchorY: 0.5 }); return self; }); var Player = Container.expand(function () { var self = Container.call(this); var playerGraphics = self.attachAsset('player', { anchorX: 0.5, anchorY: 0.5 }); self.health = 100; self.maxHealth = 100; self.weapon = null; self.speed = 4; return self; }); var Weapon = Container.expand(function (type) { var self = Container.call(this); self.type = type || 'pistol'; self.damage = 25; self.fireRate = 15; self.maxAmmo = 12; self.reloadTime = 60; if (self.type === 'rifle') { self.damage = 35; self.fireRate = 8; self.maxAmmo = 30; self.reloadTime = 90; } else if (self.type === 'shotgun') { self.damage = 60; self.fireRate = 25; self.maxAmmo = 8; self.reloadTime = 120; } self.ammo = self.maxAmmo; self.lastFired = 0; self.reloading = false; self.reloadStart = 0; var weaponGraphics = self.attachAsset(self.type, { anchorX: 0.5, anchorY: 0.5 }); self.canFire = function () { return !self.reloading && self.ammo > 0 && LK.ticks - self.lastFired >= self.fireRate; }; self.fire = function () { if (self.canFire()) { self.ammo--; self.lastFired = LK.ticks; LK.getSound('shoot').play(); return true; } return false; }; self.reload = function () { if (!self.reloading && self.ammo < self.maxAmmo) { self.reloading = true; self.reloadStart = LK.ticks; LK.getSound('reload').play(); } }; self.update = function () { if (self.reloading && LK.ticks - self.reloadStart >= self.reloadTime) { self.ammo = self.maxAmmo; self.reloading = false; } }; return self; }); /**** * Initialize Game ****/ var game = new LK.Game({ backgroundColor: 0x2d5a3d }); /**** * Game Code ****/ // Game variables var player; var enemies = []; var playerBullets = []; var enemyBullets = []; var items = []; var dragNode = null; var shootTarget = null; var zoneRadius = 1200; var zoneCenter = { x: 1024, y: 1366 }; var zoneShrinkRate = 0.5; var waveNumber = 1; var enemiesKilled = 0; var nextWaveTimer = 0; // Create UI elements var healthBar = LK.getAsset('healthPack', { anchorX: 0, anchorY: 0, scaleX: 6, scaleY: 1 }); LK.gui.topLeft.addChild(healthBar); healthBar.x = 120; healthBar.y = 20; var healthText = new Text2('100/100', { size: 40, fill: 0xFFFFFF }); healthText.anchor.set(0, 0); LK.gui.topLeft.addChild(healthText); healthText.x = 120; healthText.y = 60; var ammoText = new Text2('12/12', { size: 40, fill: 0xFFFFFF }); ammoText.anchor.set(0, 0); LK.gui.topLeft.addChild(ammoText); ammoText.x = 120; ammoText.y = 100; var scoreText = new Text2('Kills: 0', { size: 50, fill: 0xFFFFFF }); scoreText.anchor.set(0.5, 0); LK.gui.top.addChild(scoreText); var waveText = new Text2('Wave: 1', { size: 45, fill: 0xFFFFFF }); waveText.anchor.set(1, 0); LK.gui.topRight.addChild(waveText); waveText.x = -20; waveText.y = 20; // Initialize player player = game.addChild(new Player()); player.x = 1024; player.y = 1366; // Give player starting weapon var startWeapon = new Weapon('pistol'); startWeapon.x = player.x; startWeapon.y = player.y - 50; player.weapon = startWeapon; game.addChild(startWeapon); // Spawn initial enemies function spawnWave() { var enemiesToSpawn = Math.min(3 + waveNumber, 8); for (var i = 0; i < enemiesToSpawn; i++) { var enemy = new Enemy(); var angle = Math.random() * Math.PI * 2; var distance = 400 + Math.random() * 400; enemy.x = player.x + Math.cos(angle) * distance; enemy.y = player.y + Math.sin(angle) * distance; // Keep enemies within bounds enemy.x = Math.max(100, Math.min(1948, enemy.x)); enemy.y = Math.max(100, Math.min(2632, enemy.y)); enemies.push(enemy); game.addChild(enemy); } } // Spawn initial items function spawnItems() { // Spawn weapons for (var i = 0; i < 3; i++) { var weaponTypes = ['pistol', 'rifle', 'shotgun']; var weaponType = weaponTypes[Math.floor(Math.random() * weaponTypes.length)]; var weapon = new Item(weaponType); weapon.x = Math.random() * 1800 + 124; weapon.y = Math.random() * 2400 + 166; items.push(weapon); game.addChild(weapon); } // Spawn health packs for (var i = 0; i < 4; i++) { var health = new Item('healthPack'); health.x = Math.random() * 1800 + 124; health.y = Math.random() * 2400 + 166; items.push(health); game.addChild(health); } // Spawn ammo boxes for (var i = 0; i < 3; i++) { var ammo = new Item('ammoBox'); ammo.x = Math.random() * 1800 + 124; ammo.y = Math.random() * 2400 + 166; items.push(ammo); game.addChild(ammo); } } spawnWave(); spawnItems(); // Event handlers function handleMove(x, y, obj) { if (dragNode) { dragNode.x = x; dragNode.y = y; // Move weapon with player if (player.weapon) { player.weapon.x = player.x; player.weapon.y = player.y; } } } game.move = handleMove; game.down = function (x, y, obj) { var distanceToPlayer = Math.sqrt((x - player.x) * (x - player.x) + (y - player.y) * (y - player.y)); if (distanceToPlayer < 100) { dragNode = player; handleMove(x, y, obj); } else { // Shoot towards tap location shootTarget = { x: x, y: y }; } }; game.up = function (x, y, obj) { if (shootTarget && player.weapon && player.weapon.fire()) { var dx = shootTarget.x - player.x; var dy = shootTarget.y - player.y; var distance = Math.sqrt(dx * dx + dy * dy); var bullet = new Bullet(player.weapon.damage, 10, false); bullet.x = player.x; bullet.y = player.y; bullet.direction.x = dx / distance; bullet.direction.y = dy / distance; playerBullets.push(bullet); game.addChild(bullet); // Auto reload if empty if (player.weapon.ammo === 0) { player.weapon.reload(); } } dragNode = null; shootTarget = null; }; // Main game loop game.update = function () { // Update player weapon if (player.weapon) { player.weapon.update(); } // Update enemies for (var i = enemies.length - 1; i >= 0; i--) { var enemy = enemies[i]; enemy.update(); // Check if enemy is outside zone var distanceFromCenter = Math.sqrt((enemy.x - zoneCenter.x) * (enemy.x - zoneCenter.x) + (enemy.y - zoneCenter.y) * (enemy.y - zoneCenter.y)); if (distanceFromCenter > zoneRadius) { enemy.health -= 2; LK.effects.flashObject(enemy, 0xff0000, 100); } } // Update player bullets for (var i = playerBullets.length - 1; i >= 0; i--) { var bullet = playerBullets[i]; bullet.update(); // Check bounds if (bullet.x < 0 || bullet.x > 2048 || bullet.y < 0 || bullet.y > 2732) { bullet.destroy(); playerBullets.splice(i, 1); continue; } // Check enemy collisions for (var j = enemies.length - 1; j >= 0; j--) { var enemy = enemies[j]; if (bullet.intersects(enemy)) { enemy.health -= bullet.damage; LK.effects.flashObject(enemy, 0xff0000, 200); LK.getSound('hit').play(); bullet.destroy(); playerBullets.splice(i, 1); if (enemy.health <= 0) { enemy.destroy(); enemies.splice(j, 1); enemiesKilled++; LK.setScore(enemiesKilled); scoreText.setText('Kills: ' + enemiesKilled); } break; } } } // Update enemy bullets for (var i = enemyBullets.length - 1; i >= 0; i--) { var bullet = enemyBullets[i]; bullet.update(); // Check bounds if (bullet.x < 0 || bullet.x > 2048 || bullet.y < 0 || bullet.y > 2732) { bullet.destroy(); enemyBullets.splice(i, 1); continue; } // Check player collision if (bullet.intersects(player)) { player.health -= bullet.damage; LK.effects.flashObject(player, 0xff0000, 300); LK.getSound('hit').play(); bullet.destroy(); enemyBullets.splice(i, 1); if (player.health <= 0) { LK.showGameOver(); return; } } } // Check item pickups for (var i = items.length - 1; i >= 0; i--) { var item = items[i]; var distance = Math.sqrt((player.x - item.x) * (player.x - item.x) + (player.y - item.y) * (player.y - item.y)); if (distance < 60) { if (item.type === 'healthPack') { player.health = Math.min(player.maxHealth, player.health + 30); LK.getSound('pickup').play(); } else if (item.type === 'ammoBox' && player.weapon) { player.weapon.ammo = player.weapon.maxAmmo; LK.getSound('pickup').play(); } else if (item.type === 'pistol' || item.type === 'rifle' || item.type === 'shotgun') { if (player.weapon) { player.weapon.destroy(); } player.weapon = new Weapon(item.type); player.weapon.x = player.x; player.weapon.y = player.y; game.addChild(player.weapon); LK.getSound('pickup').play(); } item.destroy(); items.splice(i, 1); } } // Check zone damage for player var playerDistanceFromCenter = Math.sqrt((player.x - zoneCenter.x) * (player.x - zoneCenter.x) + (player.y - zoneCenter.y) * (player.y - zoneCenter.y)); if (playerDistanceFromCenter > zoneRadius) { player.health -= 1; LK.effects.flashScreen(0xff0000, 100); } // Shrink zone if (LK.ticks % 180 === 0) { zoneRadius = Math.max(200, zoneRadius - zoneShrinkRate); } // Spawn new wave when all enemies are dead if (enemies.length === 0) { nextWaveTimer++; if (nextWaveTimer >= 120) { waveNumber++; spawnWave(); spawnItems(); nextWaveTimer = 0; waveText.setText('Wave: ' + waveNumber); } } // Update UI healthText.setText(Math.max(0, player.health) + '/' + player.maxHealth); if (player.weapon) { ammoText.setText(player.weapon.ammo + '/' + player.weapon.maxAmmo + (player.weapon.reloading ? ' (Reloading...)' : '')); } // Update health bar scale var healthPercent = Math.max(0, player.health) / player.maxHealth; healthBar.scaleX = 6 * healthPercent; };