/**** * Plugins ****/ var tween = LK.import("@upit/tween.v1"); var storage = LK.import("@upit/storage.v1"); /**** * Classes ****/ var BossBullet = Container.expand(function () { var self = Container.call(this); var bulletGraphics = self.attachAsset('playerBullet', { anchorX: 0.5, anchorY: 0.5 }); bulletGraphics.tint = 0xff6600; self.speed = 4; self.update = function () { // Track player position for homing behavior (boss bullets only) if (player) { var dx = player.x - self.x; var dy = player.y - self.y; var distance = Math.sqrt(dx * dx + dy * dy); if (distance > 0) { self.x += dx / distance * self.speed * 0.12; self.y += dy / distance * self.speed + self.speed * 0.88; } else { self.y += self.speed; } } else { self.y += self.speed; } }; return self; }); var BossEnemy = Container.expand(function () { var self = Container.call(this); var bossGraphics = self.attachAsset('enemyShip', { anchorX: 0.5, anchorY: 0.5 }); self.speed = 0; self.health = 49; self.shootTimer = 0; self.update = function () { self.shootTimer++; }; return self; }); var EnemyBullet = Container.expand(function () { var self = Container.call(this); var bulletGraphics = self.attachAsset('playerBullet', { anchorX: 0.5, anchorY: 0.5 }); bulletGraphics.tint = 0xff0000; self.speed = 4; self.update = function () { // Regular enemy bullets move straight down self.y += self.speed; }; return self; }); var EnemyShip = Container.expand(function () { var self = Container.call(this); var enemyGraphics = self.attachAsset('enemyShip', { anchorX: 0.5, anchorY: 0.5 }); self.speed = 3; self.update = function () { self.y += self.speed; }; return self; }); var PlayerBullet = Container.expand(function () { var self = Container.call(this); var bulletGraphics = self.attachAsset('playerBullet', { anchorX: 0.5, anchorY: 0.5 }); self.speed = -12; self.update = function () { self.y += self.speed; }; return self; }); var PlayerShip = Container.expand(function () { var self = Container.call(this); var shipGraphics = self.attachAsset('playerShip', { anchorX: 0.5, anchorY: 0.5 }); 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 = 2; self.type = 'speed'; // speed, fireRate, or coins self.update = function () { self.y += self.speed; self.rotation += 0.1; }; return self; }); /**** * Initialize Game ****/ var game = new LK.Game({ backgroundColor: 0x000011 }); /**** * Game Code ****/ var player = game.addChild(new PlayerShip()); player.x = 1024; player.y = 2000; tween(player, { scaleX: 1.2, scaleY: 1.2 }, { duration: 800, easing: tween.easeInOut, onFinish: function onFinish() { tween(player, { scaleX: 1, scaleY: 1 }, { duration: 800, easing: tween.easeInOut }); } }); var playerBullets = []; var enemies = []; var bulletTimer = 0; var enemySpawnTimer = 0; var enemySpawnRate = 120; var dragNode = null; var upgradeLevel = storage.upgradeLevel || 1; var coins = storage.coins || 0; var powerUpTimer = 0; var powerUps = []; var difficulty = null; // Always start with no difficulty to force selection var gameStarted = false; var playerFireMode = 1; // 1 = single, 2 = double, 3 = triple var enemyHealth = {}; // Track enemy health by difficulty var bossEnemies = []; var enemyBullets = []; var bossBullets = []; var bossSpawned = false; // Unlimited bullets - removed bullet limitation system var scoreTxt = new Text2('0', { size: 120, fill: 0xFFFFFF }); scoreTxt.anchor.set(0.5, 0); LK.gui.top.addChild(scoreTxt); scoreTxt.y = 50; // Difficulty selection UI var difficultyTitle = new Text2('Select Difficulty', { size: 100, fill: 0xFFFFFF }); difficultyTitle.anchor.set(0.5, 0.5); difficultyTitle.x = 1024; difficultyTitle.y = 800; var easyBtn = new Text2('EASY', { size: 80, fill: 0x00FF00 }); easyBtn.anchor.set(0.5, 0.5); easyBtn.x = 1024; easyBtn.y = 1100; var mediumBtn = new Text2('MEDIUM', { size: 80, fill: 0xFFFF00 }); mediumBtn.anchor.set(0.5, 0.5); mediumBtn.x = 1024; mediumBtn.y = 1300; var hardBtn = new Text2('HARD', { size: 80, fill: 0xFF0000 }); hardBtn.anchor.set(0.5, 0.5); hardBtn.x = 1024; hardBtn.y = 1500; // Always show difficulty buttons at game start game.addChild(difficultyTitle); game.addChild(easyBtn); game.addChild(mediumBtn); game.addChild(hardBtn); gameStarted = false; function startGame(selectedDifficulty) { difficulty = selectedDifficulty; storage.difficulty = difficulty; gameStarted = true; // Remove difficulty UI if (difficultyTitle.parent) difficultyTitle.destroy(); if (easyBtn.parent) easyBtn.destroy(); if (mediumBtn.parent) mediumBtn.destroy(); if (hardBtn.parent) hardBtn.destroy(); // Set difficulty parameters if (difficulty === 'easy') { enemySpawnRate = 150; } else if (difficulty === 'medium') { enemySpawnRate = 100; } else if (difficulty === 'hard') { enemySpawnRate = 120; bossSpawned = false; } } var highScore = storage.highScore || 0; var highScoreTxt = new Text2('High: ' + highScore, { size: 80, fill: 0xFFFF00 }); highScoreTxt.anchor.set(1, 0); LK.gui.topRight.addChild(highScoreTxt); highScoreTxt.x = -20; highScoreTxt.y = 50; // Removed bullet count and reload UI - unlimited bullets function handleMove(x, y, obj) { if (dragNode) { // Allow free movement within screen bounds var targetX = x; var targetY = y; if (targetX < 60) targetX = 60; if (targetX > 1988) targetX = 1988; if (targetY < 100) targetY = 100; if (targetY > 2600) targetY = 2600; // Direct movement without tweening for immediate response dragNode.x = targetX; dragNode.y = targetY; } } game.move = handleMove; game.down = function (x, y, obj) { if (!gameStarted) { // Check difficulty button clicks using direct x,y coordinates if (x > 824 && x < 1224) { if (y > 1050 && y < 1150) { startGame('easy'); return; } else if (y > 1250 && y < 1350) { startGame('medium'); return; } else if (y > 1450 && y < 1550) { startGame('hard'); return; } } } else { dragNode = player; handleMove(x, y, obj); } }; game.up = function (x, y, obj) { dragNode = null; }; game.update = function () { bulletTimer++; enemySpawnTimer++; powerUpTimer++; // Unlimited bullets - removed reload handling // Spawn player bullets with upgrade-based fire rate (only if game started) if (gameStarted) { var fireRate = Math.max(8, 15 - upgradeLevel * 2); if (bulletTimer >= fireRate) { if (playerFireMode === 1) { // Single bullet var newBullet = new PlayerBullet(); newBullet.x = player.x; newBullet.y = player.y - 40; newBullet.lastY = newBullet.y; playerBullets.push(newBullet); game.addChild(newBullet); } else if (playerFireMode === 2) { // Double bullets for (var bi = 0; bi < 2; bi++) { var newBullet = new PlayerBullet(); newBullet.x = player.x + (bi === 0 ? -30 : 30); newBullet.y = player.y - 40; newBullet.lastY = newBullet.y; playerBullets.push(newBullet); game.addChild(newBullet); } } else if (playerFireMode === 3) { // Triple bullets for (var bi = 0; bi < 3; bi++) { var newBullet = new PlayerBullet(); newBullet.x = player.x + (bi === 0 ? -40 : bi === 1 ? 0 : 40); newBullet.y = player.y - 40; newBullet.lastY = newBullet.y; playerBullets.push(newBullet); game.addChild(newBullet); } } LK.getSound('shoot').play(); bulletTimer = 0; } } // Spawn power-ups occasionally if (powerUpTimer >= 600) { var newPowerUp = new PowerUp(); newPowerUp.x = Math.random() * 1800 + 124; newPowerUp.y = -30; newPowerUp.lastY = newPowerUp.y; var powerUpTypes = ['speed', 'fireRate', 'coins']; newPowerUp.type = powerUpTypes[Math.floor(Math.random() * powerUpTypes.length)]; if (newPowerUp.type === 'coins') { tween(newPowerUp, { tint: 0xffd700 }, { duration: 0 }); } else if (newPowerUp.type === 'fireRate') { tween(newPowerUp, { tint: 0xff6600 }, { duration: 0 }); } powerUps.push(newPowerUp); game.addChild(newPowerUp); powerUpTimer = 0; } // Spawn boss enemy for hard difficulty after score 100 if (gameStarted && difficulty === 'hard' && LK.getScore() >= 100 && !bossSpawned) { var newBoss = new BossEnemy(); newBoss.x = 1024; newBoss.y = -100; newBoss.lastY = newBoss.y; newBoss.lastIntersectingPlayer = false; newBoss.scaleX = 2; newBoss.scaleY = 2; newBoss.alpha = 0.8; newBoss.tint = 0xff6600; enemyHealth[bossEnemies.length] = 49; newBoss.enemyId = bossEnemies.length; bossEnemies.push(newBoss); game.addChild(newBoss); bossSpawned = true; } // Spawn enemies (only if game started and no boss is spawned in hard mode) if (gameStarted && enemySpawnTimer >= enemySpawnRate && !(difficulty === 'hard' && bossSpawned)) { var newEnemy = new EnemyShip(); newEnemy.x = Math.random() * 1800 + 124; newEnemy.y = -30; newEnemy.lastY = newEnemy.y; newEnemy.lastIntersectingPlayer = false; newEnemy.scaleX = 0.5; newEnemy.scaleY = 0.5; newEnemy.alpha = 0.7; // Set enemy health and speed based on difficulty if (difficulty === 'easy') { newEnemy.health = 1; newEnemy.speed = 2; } else if (difficulty === 'medium') { newEnemy.health = 2; newEnemy.speed = 3; } else if (difficulty === 'hard') { newEnemy.health = 5; newEnemy.speed = 5; newEnemy.canShoot = true; newEnemy.shootTimer = Math.random() * 30; } enemyHealth[newEnemy.id || enemies.length] = newEnemy.health; newEnemy.enemyId = newEnemy.id || enemies.length; tween(newEnemy, { scaleX: 1, scaleY: 1, alpha: 1 }, { duration: 400, easing: tween.easeOut }); enemies.push(newEnemy); game.addChild(newEnemy); enemySpawnTimer = 0; if (enemySpawnRate > 40) { enemySpawnRate -= 1; } } // Enemy shooting logic for hard difficulty if (gameStarted && difficulty === 'hard') { // Boss enemies shoot every 300 ticks (5 seconds) for (var bi = 0; bi < bossEnemies.length; bi++) { var boss = bossEnemies[bi]; boss.shootTimer++; if (boss.shootTimer >= 300) { var bossBullet = new BossBullet(); bossBullet.x = boss.x; bossBullet.y = boss.y + 50; bossBullet.lastY = bossBullet.y; bossBullets.push(bossBullet); game.addChild(bossBullet); boss.shootTimer = 0; } } } // Update and check power-ups for (var p = powerUps.length - 1; p >= 0; p--) { var powerUp = powerUps[p]; if (powerUp.lastY === undefined) powerUp.lastY = powerUp.y; // Remove power-ups that go off screen if (powerUp.lastY <= 2800 && powerUp.y > 2800) { powerUp.destroy(); powerUps.splice(p, 1); continue; } // Check power-up collection if (powerUp.intersects(player)) { LK.getSound('powerup').play(); if (powerUp.type === 'coins') { coins += 5; storage.coins = coins; } else if (powerUp.type === 'fireRate' && upgradeLevel < 5) { upgradeLevel++; storage.upgradeLevel = upgradeLevel; } else if (powerUp.type === 'speed') { // Green circle - upgrade fire mode if (playerFireMode < 3) { playerFireMode++; } tween(player, { tint: 0x00ff00 }, { duration: 200, onFinish: function onFinish() { tween(player, { tint: 0xffffff }, { duration: 200 }); } }); } tween(powerUp, { scaleX: 2, scaleY: 2, alpha: 0 }, { duration: 200, easing: tween.easeOut, onFinish: function onFinish() { powerUp.destroy(); } }); powerUps.splice(p, 1); continue; } powerUp.lastY = powerUp.y; } // Update and check player bullets for (var i = playerBullets.length - 1; i >= 0; i--) { var bullet = playerBullets[i]; if (bullet.lastY === undefined) bullet.lastY = bullet.y; // Remove bullets that go off screen if (bullet.lastY >= -10 && bullet.y < -10) { bullet.destroy(); playerBullets.splice(i, 1); continue; } // Check bullet-boss collisions first var hitEnemy = false; for (var bj = bossEnemies.length - 1; bj >= 0; bj--) { var boss = bossEnemies[bj]; if (bullet.intersects(boss)) { var bossId = boss.enemyId; if (enemyHealth[bossId] === undefined) { enemyHealth[bossId] = 49; } // Reduce boss health enemyHealth[bossId]--; // Flash boss when hit LK.effects.flashObject(boss, 0xff0000, 100); if (enemyHealth[bossId] <= 0) { // Boss destroyed var points = 500; LK.setScore(LK.getScore() + points); scoreTxt.setText(LK.getScore()); // Update high score if (LK.getScore() > highScore) { highScore = LK.getScore(); storage.highScore = highScore; highScoreTxt.setText('High: ' + highScore); tween(highScoreTxt, { tint: 0x00ff00 }, { duration: 300, onFinish: function onFinish() { tween(highScoreTxt, { tint: 0xffff00 }, { duration: 300 }); } }); } LK.getSound('explosion').play(); tween(boss, { scaleX: 4, scaleY: 4, alpha: 0 }, { duration: 500, easing: tween.easeOut, onFinish: function onFinish() { boss.destroy(); } }); bossEnemies.splice(bj, 1); delete enemyHealth[bossId]; bossSpawned = false; // Allow new boss to spawn } bullet.destroy(); playerBullets.splice(i, 1); hitEnemy = true; break; } } // Check bullet-enemy collisions if (!hitEnemy) { for (var j = enemies.length - 1; j >= 0; j--) { var enemy = enemies[j]; if (bullet.intersects(enemy)) { var enemyId = enemy.enemyId; if (enemyHealth[enemyId] === undefined) { enemyHealth[enemyId] = enemy.health || 1; } // Reduce enemy health enemyHealth[enemyId]--; // Flash enemy when hit LK.effects.flashObject(enemy, 0xff0000, 100); if (enemyHealth[enemyId] <= 0) { // Enemy destroyed var points = 10 + upgradeLevel * 5; LK.setScore(LK.getScore() + points); scoreTxt.setText(LK.getScore()); // Update high score if (LK.getScore() > highScore) { highScore = LK.getScore(); storage.highScore = highScore; highScoreTxt.setText('High: ' + highScore); tween(highScoreTxt, { tint: 0x00ff00 }, { duration: 300, onFinish: function onFinish() { tween(highScoreTxt, { tint: 0xffff00 }, { duration: 300 }); } }); } LK.getSound('explosion').play(); tween(enemy, { scaleX: 2, scaleY: 2, alpha: 0 }, { duration: 300, easing: tween.easeOut, onFinish: function onFinish() { enemy.destroy(); } }); enemies.splice(j, 1); delete enemyHealth[enemyId]; } bullet.destroy(); playerBullets.splice(i, 1); hitEnemy = true; break; } } } if (hitEnemy) continue; bullet.lastY = bullet.y; } // Update and check boss enemies for (var b = bossEnemies.length - 1; b >= 0; b--) { var boss = bossEnemies[b]; if (boss.lastY === undefined) boss.lastY = boss.y; if (boss.lastIntersectingPlayer === undefined) boss.lastIntersectingPlayer = false; // Remove boss that goes off screen if (boss.lastY <= 2800 && boss.y > 2800) { boss.destroy(); bossEnemies.splice(b, 1); continue; } // Check boss-player collision var currentIntersecting = boss.intersects(player); if (!boss.lastIntersectingPlayer && currentIntersecting) { LK.effects.flashScreen(0xff0000, 1000); storage.difficulty = null; difficulty = null; gameStarted = false; LK.showGameOver(); return; } boss.lastY = boss.y; boss.lastIntersectingPlayer = currentIntersecting; } // Update and check enemy bullets for (var eb = enemyBullets.length - 1; eb >= 0; eb--) { var enemyBullet = enemyBullets[eb]; if (enemyBullet.lastY === undefined) enemyBullet.lastY = enemyBullet.y; // Remove enemy bullets that go off screen if (enemyBullet.lastY <= 2800 && enemyBullet.y > 2800) { enemyBullet.destroy(); enemyBullets.splice(eb, 1); continue; } // Check enemy bullet-player collision if (enemyBullet.intersects(player)) { LK.effects.flashScreen(0xff0000, 1000); storage.difficulty = null; difficulty = null; gameStarted = false; LK.showGameOver(); return; } enemyBullet.lastY = enemyBullet.y; } // Update and check boss bullets for (var bb = bossBullets.length - 1; bb >= 0; bb--) { var bossBullet = bossBullets[bb]; if (bossBullet.lastY === undefined) bossBullet.lastY = bossBullet.y; // Remove boss bullets that go off screen if (bossBullet.lastY <= 2800 && bossBullet.y > 2800) { bossBullet.destroy(); bossBullets.splice(bb, 1); continue; } // Check boss bullet-player collision if (bossBullet.intersects(player)) { LK.effects.flashScreen(0xff0000, 1000); storage.difficulty = null; difficulty = null; gameStarted = false; LK.showGameOver(); return; } bossBullet.lastY = bossBullet.y; } // Update and check enemies for (var k = enemies.length - 1; k >= 0; k--) { var enemy = enemies[k]; if (enemy.lastY === undefined) enemy.lastY = enemy.y; if (enemy.lastIntersectingPlayer === undefined) enemy.lastIntersectingPlayer = false; // Remove enemies that go off screen if (enemy.lastY <= 2800 && enemy.y > 2800) { enemy.destroy(); enemies.splice(k, 1); continue; } // Check enemy-player collision var currentIntersecting = enemy.intersects(player); if (!enemy.lastIntersectingPlayer && currentIntersecting) { LK.effects.flashScreen(0xff0000, 1000); // Clear difficulty selection to force player to choose again storage.difficulty = null; difficulty = null; gameStarted = false; LK.showGameOver(); return; } enemy.lastY = enemy.y; enemy.lastIntersectingPlayer = currentIntersecting; } };