/**** * Plugins ****/ var tween = LK.import("@upit/tween.v1"); /**** * Classes ****/ // Boss ship var BossShip = Container.expand(function () { var self = Container.call(this); var bossSprite = self.attachAsset('enemyShip', { anchorX: 0.5, anchorY: 0.5, scaleX: 2.2, scaleY: 2.2 }); self.radius = bossSprite.width * 0.5; self.hp = 20; self.update = function () { // Boss movement: simple horizontal oscillation if (!self.dir) self.dir = 1; self.x += self.dir * 10; if (self.x > 2048 - self.radius - 40) self.dir = -1; if (self.x < self.radius + 40) self.dir = 1; // Boss shooting logic if (self.shootCooldown === undefined) self.shootCooldown = 86; self.shootCooldown--; if (self.shootCooldown <= 0) { // Fire 3-way spread for (var i = 0; i < 3; i++) { var bullet = new EnemyBullet(); bullet.x = self.x; bullet.y = self.y + self.radius; // Add spread: -0.2, 0, +0.2 radians bullet.angle = -0.2 + 0.2 * i; bullet.update = function (origUpdate, angle) { return function () { this.x += Math.sin(angle) * 12; this.y += Math.cos(angle) * this.speed; }; }(bullet.update, bullet.angle); if (typeof enemyBullets !== "undefined") { enemyBullets.push(bullet); } if (typeof game !== "undefined") { game.addChild(bullet); } } self.shootCooldown = 86; } }; return self; }); // Enemy bullet var EnemyBullet = Container.expand(function () { var self = Container.call(this); var bullet = self.attachAsset('enemyBullet', { anchorX: 0.5, anchorY: 0.5 }); self.speed = 18; self.update = function () { self.y += self.speed; }; return self; }); // Enemy ship var EnemyShip = Container.expand(function () { var self = Container.call(this); var enemy = self.attachAsset('enemyShip', { anchorX: 0.5, anchorY: 0.5 }); self.speed = 3 + Math.random() * 2; self.shootCooldown = 60 + Math.floor(Math.random() * 60); self.radius = enemy.width * 0.5; self.update = function () { self.y += self.speed; self.shootCooldown--; }; return self; }); // Player bullet var PlayerBullet = Container.expand(function () { var self = Container.call(this); var bullet = self.attachAsset('playerBullet', { anchorX: 0.5, anchorY: 0.5 }); self.speed = -32; self.update = function () { self.y += self.speed; }; return self; }); // Player spaceship var Spaceship = Container.expand(function () { var self = Container.call(this); var ship = self.attachAsset('spaceship', { anchorX: 0.5, anchorY: 0.5 }); self.radius = ship.width * 0.5; self.invincible = false; self.update = function () {}; return self; }); /**** * Initialize Game ****/ var game = new LK.Game({ backgroundColor: 0x000010 }); /**** * Game Code ****/ // Game variables // Spaceship (player) // Player bullet // Enemy ship // Enemy bullet // Asteroid // Powerup // Add background image to the game scene function spawnBoss() { if (bossActive) return; boss = new BossShip(); boss.x = 2048 / 2; boss.y = 400; bossActive = true; game.addChild(boss); } var background = LK.getAsset('background', { anchorX: 0, anchorY: 0, x: 0, y: 0 }); game.addChild(background); var player; var playerBullets = []; var enemies = []; var enemyBullets = []; // Boss variables must be defined in global scope for all functions to access var boss = null; var bossActive = false; var dragNode = null; var lastPlayerX = 0, lastPlayerY = 0; var canShoot = true; var shootCooldown = 0; var score = 0; // Player lives var playerLives = 3; var livesTxt = new Text2('♥ x3', { size: 90, fill: 0xFF4444 }); livesTxt.anchor.set(0.5, 0); livesTxt.x = 2048 / 2; LK.gui.top.addChild(livesTxt); var scoreTxt = new Text2('0', { size: 120, fill: 0xFFFFFF }); scoreTxt.anchor.set(0.5, 0); LK.gui.top.addChild(scoreTxt); function spawnPlayer() { player = new Spaceship(); player.x = 2048 / 2; player.y = 2732 - 350; game.addChild(player); } function spawnEnemy() { var enemy = new EnemyShip(); enemy.x = 200 + Math.random() * (2048 - 400); enemy.y = -100; enemies.push(enemy); game.addChild(enemy); } function firePlayerBullet() { if (!player || player.invincible) return; if (player.tripleShot && player.tripleShot > 0) { // Fire 3-way spread for (var i = 0; i < 3; i++) { var bullet = new PlayerBullet(); bullet.x = player.x; bullet.y = player.y - player.radius; // Add spread: -0.2, 0, +0.2 radians bullet.angle = -0.2 + 0.2 * i; bullet.update = function (origUpdate, angle) { return function () { this.x += Math.sin(angle) * 16; this.y += Math.cos(angle) * this.speed; }; }(bullet.update, bullet.angle); playerBullets.push(bullet); game.addChild(bullet); } player.tripleShot--; if (player.tripleShot <= 0) { player.tripleShot = 0; } } else { var bullet = new PlayerBullet(); bullet.x = player.x; bullet.y = player.y - player.radius; playerBullets.push(bullet); game.addChild(bullet); } } function fireEnemyBullet(enemy) { var bullet = new EnemyBullet(); bullet.x = enemy.x; bullet.y = enemy.y + enemy.radius; enemyBullets.push(bullet); game.addChild(bullet); } function resetGame() { // Not needed, handled by LK.showGameOver } // Dragging and shooting game.down = function (x, y, obj) { if (!player) return; dragNode = player; lastPlayerX = x; lastPlayerY = y; }; game.up = function (x, y, obj) { dragNode = null; }; function handleMove(x, y, obj) { if (dragNode === player) { // Clamp to game area, avoid top 100px (menu) var minX = player.radius + 20; var maxX = 2048 - player.radius - 20; var minY = 120 + player.radius; var maxY = 2732 - player.radius - 20; player.x = Math.max(minX, Math.min(maxX, x)); player.y = Math.max(minY, Math.min(maxY, y)); } } game.move = handleMove; // Automatic player bullet firing handled in game.update (removed tap-to-shoot) // Main update loop game.update = function () { // Player automatic shooting if (!player.invincible) { if (!canShoot) { shootCooldown--; if (shootCooldown <= 0) { canShoot = true; } } if (canShoot) { firePlayerBullet(); canShoot = false; shootCooldown = 10; } } // Update player if (player) player.update(); // Update and remove player bullets for (var i = playerBullets.length - 1; i >= 0; i--) { var b = playerBullets[i]; b.update(); if (b.y < -80) { b.destroy(); playerBullets.splice(i, 1); continue; } // Check collision with enemies for (var j = enemies.length - 1; j >= 0; j--) { var e = enemies[j]; if (b.intersects(e)) { // Destroy both b.destroy(); playerBullets.splice(i, 1); e.destroy(); enemies.splice(j, 1); // 100% chance to drop 3-way shot powerup if (typeof spawnPowerup === "function") { spawnPowerup(e.x, e.y); } score += 1; scoreTxt.setText(score); // Boss spawn check: every 30 points if (score % 30 === 0 && score > 0) { if (typeof spawnBoss === "function") { spawnBoss(); } } break; } } } // Update and remove enemies for (var i = enemies.length - 1; i >= 0; i--) { var e = enemies[i]; e.update(); if (e.y > 2732 + 100) { e.destroy(); enemies.splice(i, 1); continue; } // Enemy shooting if (e.shootCooldown <= 0) { fireEnemyBullet(e); // Increase cooldown for less frequent enemy bullets e.shootCooldown = 180 + Math.floor(Math.random() * 90); } // Collision with player if (player && !player.invincible && e.intersects(player)) { LK.effects.flashScreen(0xff0000, 800); playerLives--; livesTxt.setText('♥ x' + playerLives); if (playerLives <= 0) { LK.showGameOver(); return; } else { // Respawn player player.destroy(); spawnPlayer(); return; } } } // Powerup collision with player (player must collect the powerup) if (typeof powerups !== "undefined") { for (var k = powerups.length - 1; k >= 0; k--) { var p = powerups[k]; if (player && p.intersects(player)) { // Grant triple shot for 10 shots player.tripleShot = 10; p.destroy(); powerups.splice(k, 1); } } } // Update and remove enemy bullets for (var i = enemyBullets.length - 1; i >= 0; i--) { var b = enemyBullets[i]; b.update(); if (b.y > 2732 + 80) { b.destroy(); enemyBullets.splice(i, 1); continue; } // Collision with player if (player && !player.invincible && b.intersects(player)) { LK.effects.flashScreen(0xff0000, 800); playerLives--; livesTxt.setText('♥ x' + playerLives); // score += 1; // Removed: No score for being hit by enemy bullet // scoreTxt.setText(score); b.destroy(); enemyBullets.splice(i, 1); if (playerLives <= 0) { LK.showGameOver(); return; } else { // Respawn player player.destroy(); spawnPlayer(); return; } } } // Boss logic if (bossActive && boss) { boss.update(); // Boss collision with player bullets for (var i = playerBullets.length - 1; i >= 0; i--) { var b = playerBullets[i]; if (b.intersects(boss)) { b.destroy(); playerBullets.splice(i, 1); boss.hp--; if (boss.hp <= 0) { boss.destroy(); boss = null; bossActive = false; score += 5; scoreTxt.setText(score); break; } } } // Boss collision with player if (player && !player.invincible && boss && boss.intersects(player)) { LK.effects.flashScreen(0xff0000, 1000); playerLives--; livesTxt.setText('♥ x' + playerLives); if (playerLives <= 0) { LK.showGameOver(); return; } else { player.destroy(); spawnPlayer(); return; } } } // Spawning logic if (LK.ticks % 60 === 0 && !bossActive) { spawnEnemy(); } }; // Start game spawnPlayer();