/**** * Plugins ****/ var tween = LK.import("@upit/tween.v1"); var storage = LK.import("@upit/storage.v1", { leaderboard: [] }); /**** * Classes ****/ var Bullet = Container.expand(function () { var self = Container.call(this); var bulletGraphics = self.attachAsset('bullet', { anchorX: 0.5, anchorY: 0.5 }); self.velocityX = 0; self.velocityY = 0; self.speed = 15; self.lifetime = 0; self.maxLifetime = 150; self.update = function () { self.x += self.velocityX; self.y += self.velocityY; self.lifetime++; if (self.lifetime > self.maxLifetime) { self.destroy(); } }; return self; }); var EnemyBasic = Container.expand(function () { var self = Container.call(this); var enemyGraphics = self.attachAsset('enemy', { anchorX: 0.5, anchorY: 0.5 }); enemyGraphics.tint = 0xff3333; self.velocityX = 0; self.velocityY = 0; self.speed = 2; self.health = 1; self.enemyType = 'crab'; self.update = function () { self.x += self.velocityX; self.y += self.velocityY; }; return self; }); var EnemyTough = Container.expand(function () { var self = Container.call(this); var enemyGraphics = self.attachAsset('enemy2', { anchorX: 0.5, anchorY: 0.5 }); self.velocityX = 0; self.velocityY = 0; self.speed = 1.5; self.health = 2; self.enemyType = 'spongebob'; self.update = function () { self.x += self.velocityX; self.y += self.velocityY; }; return self; }); var Particle = Container.expand(function () { var self = Container.call(this); var particleGraphics = self.attachAsset('particle', { anchorX: 0.5, anchorY: 0.5 }); self.velocityX = 0; self.velocityY = 0; self.lifetime = 0; self.maxLifetime = 40; self.color = 0xffff00; self.update = function () { self.x += self.velocityX; self.y += self.velocityY; self.lifetime++; var alpha = 1 - self.lifetime / self.maxLifetime; particleGraphics.alpha = alpha; if (self.lifetime > self.maxLifetime) { self.destroy(); } }; return self; }); var PlayerShip = Container.expand(function () { var self = Container.call(this); var shipGraphics = self.attachAsset('playerShip', { anchorX: 0.5, anchorY: 0.5 }); shipGraphics.rotation = -Math.PI / 2; self.velocityX = 0; self.velocityY = 0; self.acceleration = 0.8; self.friction = 0.92; self.maxSpeed = 8; self.rotation = 0; self.health = 5; self.canShoot = true; self.shootCooldown = 0; self.shieldActive = false; self.shieldDuration = 0; self.shieldMaxDuration = 120; self.shieldGraphic = null; self.update = function () { self.x += self.velocityX; self.y += self.velocityY; self.velocityX *= self.friction; self.velocityY *= self.friction; var speed = Math.sqrt(self.velocityX * self.velocityX + self.velocityY * self.velocityY); if (speed > self.maxSpeed) { var ratio = self.maxSpeed / speed; self.velocityX *= ratio; self.velocityY *= ratio; } if (self.x < 40) self.x = 40; if (self.x > 2008) self.x = 2008; if (self.y < 40) self.y = 40; if (self.y > 2692) self.y = 2692; shipGraphics.rotation = self.rotation + Math.PI / 2; if (self.shootCooldown > 0) { self.shootCooldown--; } if (self.shieldActive) { self.shieldDuration++; if (!self.shieldGraphic) { self.shieldGraphic = self.addChild(new Shield()); } if (self.shieldDuration >= self.shieldMaxDuration) { self.shieldActive = false; self.shieldDuration = 0; if (self.shieldGraphic) { self.shieldGraphic.destroy(); self.shieldGraphic = null; } } } }; return self; }); var Shield = Container.expand(function () { var self = Container.call(this); var shieldRing = LK.getAsset('shieldCircle', { anchorX: 0.5, anchorY: 0.5 }); self.addChild(shieldRing); shieldRing.width = 280; shieldRing.height = 280; shieldRing.tint = 0xFFD700; shieldRing.alpha = 0.6; return self; }); /**** * Initialize Game ****/ var game = new LK.Game({ backgroundColor: 0x001a4d }); /**** * Game Code ****/ var playerShip = game.addChild(new PlayerShip()); playerShip.x = 1024; playerShip.y = 1366; var enemies = []; var bullets = []; var particles = []; var coins = 0; var health = 5; var spawnRate = 60; var spawnCounter = 0; var shieldAbilityAvailable = true; var lastShieldCoinThreshold = 0; var lastAutomaticShieldCoins = 0; var coinsTxt = new Text2('Coins: 0', { size: 100, fill: 0xFFD700 }); coinsTxt.anchor.set(1, 0); LK.gui.topRight.addChild(coinsTxt); var healthHearts = []; for (var h = 0; h < 5; h++) { var heart = LK.getAsset('heart', { anchorX: 0.5, anchorY: 0.5 }); healthHearts.push(heart); LK.gui.topLeft.addChild(heart); } for (var h = 0; h < healthHearts.length; h++) { healthHearts[h].x = 60 + h * 50; healthHearts[h].y = 50; } var keysPressed = { w: false, a: false, s: false, d: false }; var mouseX = 1024; var mouseY = 1366; function createParticleExplosion(x, y) { var bubbleCount = 5; for (var i = 0; i < bubbleCount; i++) { var particle = game.addChild(new Particle()); particle.x = x; particle.y = y; var angle = i / bubbleCount * Math.PI * 2; var speed = 2.5 + Math.random() * 1.5; particle.velocityX = Math.cos(angle) * speed; particle.velocityY = Math.sin(angle) * speed; var bubbleColors = [0x00ccff, 0x0099ff, 0x66ddff, 0x33bbff]; particle.color = bubbleColors[Math.floor(Math.random() * bubbleColors.length)]; particle.children[0].tint = particle.color; particles.push(particle); } LK.getSound('explosion').play(); } function spawnEnemy() { var rand = Math.random(); var enemyType = rand < 0.5 ? 'basic' : 'tough'; var enemy = game.addChild(enemyType === 'basic' ? new EnemyBasic() : new EnemyTough()); var side = Math.floor(Math.random() * 4); if (side === 0) { enemy.x = Math.random() * 2048; enemy.y = -30; } else if (side === 1) { enemy.x = 2048 + 30; enemy.y = Math.random() * 2732; } else if (side === 2) { enemy.x = Math.random() * 2048; enemy.y = 2732 + 30; } else { enemy.x = -30; enemy.y = Math.random() * 2732; } var dx = playerShip.x - enemy.x; var dy = playerShip.y - enemy.y; var distance = Math.sqrt(dx * dx + dy * dy); if (distance > 0) { enemy.velocityX = dx / distance * enemy.speed; enemy.velocityY = dy / distance * enemy.speed; } enemies.push(enemy); } game.move = function (x, y, obj) { mouseX = x; mouseY = y; var dx = mouseX - playerShip.x; var dy = mouseY - playerShip.y; playerShip.rotation = Math.atan2(dy, dx); }; game.down = function (x, y, obj) { if (playerShip.shootCooldown <= 0) { var bullet = game.addChild(new Bullet()); bullet.x = playerShip.x; bullet.y = playerShip.y; bullet.velocityX = Math.cos(playerShip.rotation) * bullet.speed; bullet.velocityY = Math.sin(playerShip.rotation) * bullet.speed; var bulletGraphics = bullet.children[0]; tween(bulletGraphics, { scaleX: 1.2, scaleY: 1.2 }, { duration: 100, easing: tween.easeOut }); bullets.push(bullet); playerShip.shootCooldown = 8; LK.getSound('shoot').play(); } }; var keyboardHandler = function keyboardHandler(e) { if ((e.key === 'e' || e.key === 'E') && shieldAbilityAvailable && coins >= 100) { playerShip.shieldActive = true; playerShip.shieldDuration = 0; coins -= 100; coinsTxt.setText('Coins: ' + coins); shieldAbilityAvailable = false; lastShieldCoinThreshold = coins; } }; game.on('keydown', keyboardHandler); game.update = function () { spawnCounter++; if (spawnCounter > spawnRate) { spawnEnemy(); spawnCounter = 0; if (spawnRate > 15) { spawnRate = Math.max(15, 60 - Math.floor(coins / 5)); } } if (keysPressed.w) { playerShip.velocityX += Math.cos(playerShip.rotation) * playerShip.acceleration; playerShip.velocityY += Math.sin(playerShip.rotation) * playerShip.acceleration; } if (keysPressed.a) { playerShip.velocityX += Math.cos(playerShip.rotation - Math.PI / 2) * playerShip.acceleration; playerShip.velocityY += Math.sin(playerShip.rotation - Math.PI / 2) * playerShip.acceleration; } if (keysPressed.s) { playerShip.velocityX += Math.cos(playerShip.rotation + Math.PI) * playerShip.acceleration; playerShip.velocityY += Math.sin(playerShip.rotation + Math.PI) * playerShip.acceleration; } if (keysPressed.d) { playerShip.velocityX += Math.cos(playerShip.rotation + Math.PI / 2) * playerShip.acceleration; playerShip.velocityY += Math.sin(playerShip.rotation + Math.PI / 2) * playerShip.acceleration; } for (var b = bullets.length - 1; b >= 0; b--) { var bullet = bullets[b]; if (bullet.lifetime === undefined) bullet.lifetime = 0; if (bullet.lastY === undefined) bullet.lastY = bullet.y; for (var e = enemies.length - 1; e >= 0; e--) { var enemy = enemies[e]; if (bullet.intersects(enemy)) { enemy.health--; if (enemy.health <= 0) { createParticleExplosion(enemy.x, enemy.y); coins += 10; coinsTxt.setText('Coins: ' + coins); enemy.destroy(); enemies.splice(e, 1); } else { var enemyGraphics = enemy.children[0]; enemyGraphics.tint = 0xcccccc; } bullet.destroy(); bullets.splice(b, 1); break; } } } if (coins >= lastShieldCoinThreshold + 100) { shieldAbilityAvailable = true; } if (coins >= lastAutomaticShieldCoins + 200) { playerShip.shieldActive = true; playerShip.shieldDuration = 0; lastAutomaticShieldCoins = coins; if (playerShip.shieldGraphic) { playerShip.shieldGraphic.destroy(); playerShip.shieldGraphic = null; } playerShip.shieldGraphic = playerShip.addChild(new Shield()); } for (var e = enemies.length - 1; e >= 0; e--) { var enemy = enemies[e]; if (enemy.lastIntersecting === undefined) enemy.lastIntersecting = false; var currentIntersecting = enemy.intersects(playerShip); if (!enemy.lastIntersecting && currentIntersecting) { if (playerShip.shieldActive) { createParticleExplosion(enemy.x, enemy.y); coins += 10; coinsTxt.setText('Coins: ' + coins); enemy.destroy(); enemies.splice(e, 1); } else { var damageAmount = enemy.enemyType === 'crab' ? 0.5 : 1; health -= damageAmount; playerShip.health = health; for (var hIdx = 0; hIdx < healthHearts.length; hIdx++) { if (hIdx < Math.floor(health)) { healthHearts[hIdx].alpha = 1; } else if (hIdx === Math.floor(health) && health % 1 !== 0) { healthHearts[hIdx].alpha = 0.5; } else { healthHearts[hIdx].alpha = 0.3; } } createParticleExplosion(enemy.x, enemy.y); enemy.destroy(); enemies.splice(e, 1); if (health <= 0) { var leaderboardData = storage.leaderboard || []; leaderboardData.push(coins); leaderboardData.sort(function (a, b) { return b - a; }); if (leaderboardData.length > 10) { leaderboardData = leaderboardData.slice(0, 10); } storage.leaderboard = leaderboardData; LK.showGameOver(); } LK.effects.flashObject(playerShip, 0xff0000, 300); } } enemy.lastIntersecting = currentIntersecting; if (enemy.x < -100 || enemy.x > 2148 || enemy.y < -100 || enemy.y > 2832) { enemy.destroy(); enemies.splice(e, 1); } } for (var p = particles.length - 1; p >= 0; p--) { var particle = particles[p]; if (particle.lifetime > particle.maxLifetime) { particle.destroy(); particles.splice(p, 1); } } }; LK.playMusic('bgmusic', { loop: true });