/**** * Classes ****/ // Bullet class var Bullet = Container.expand(function (startX, startY, direction) { var self = Container.call(this); var bulletGraphics = self.attachAsset('bullet', { anchorX: 0.5, anchorY: 0.5 }); self.x = startX; self.y = startY; self.speed = 10; self.direction = direction; self.update = function () { self.x += self.direction.x * self.speed; self.y += self.direction.y * self.speed; if (self.x < 0 || self.x > 2048 || self.y < 0 || self.y > 2732) { self.destroy(); } }; }); // Enemy class var Enemy = Container.expand(function (startX, startY) { var self = Container.call(this); var enemyGraphics = self.attachAsset('enemy', { anchorX: 0.5, anchorY: 0.5 }); self.lastIntersecting = false; self.x = startX; self.y = startY; self.speed = 2; self.update = function () { var dx = player.x - self.x; var dy = player.y - self.y; var distance = Math.sqrt(dx * dx + dy * dy); self.x += dx / distance * self.speed; self.y += dy / distance * self.speed; enemyGraphics.scaleX = self.x > 1024 ? -1 : 1; if (self.intersects(player) && !self.lastIntersecting) { // Handle player damage playerHealth -= 1; if (playerHealth >= 0) { hearts[playerHealth].destroy(); // Remove a heart when player takes damage hearts.pop(); } if (playerHealth <= 0) { LK.showGameOver(); // End the game when player health reaches zero } self.destroy(); } self.lastIntersecting = self.intersects(player); }; }); // EnemyBig class var EnemyBig = Container.expand(function (startX, startY) { var self = Container.call(this); var enemyBigGraphics = self.attachAsset('enemy', { anchorX: 0.5, anchorY: 0.5, scaleX: 2, scaleY: 2 }); self.lastIntersecting = false; self.x = startX; self.y = startY; self.speed = 0.5; self.health = 5; // Takes 5 shots to be killed self.update = function () { var dx = player.x - self.x; var dy = player.y - self.y; var distance = Math.sqrt(dx * dx + dy * dy); self.x += dx / distance * self.speed; self.y += dy / distance * self.speed; enemyBigGraphics.scaleX = self.x > 1024 ? -2 : 2; if (self.intersects(player) && !self.lastIntersecting) { // Handle player damage playerHealth -= 1; if (playerHealth >= 0) { hearts[playerHealth].destroy(); // Remove a heart when player takes damage hearts.pop(); } if (playerHealth <= 0) { LK.showGameOver(); // End the game when player health reaches zero } self.destroy(); } self.lastIntersecting = self.intersects(player); }; self.takeDamage = function () { self.health -= 1; if (self.health <= 0) { self.destroy(); for (var i = 0; i < 2; i++) { var edge = Math.floor(Math.random() * 4); var startX, startY; if (edge === 0) { startX = Math.random() * 2048; startY = -100; // Above the screen } else if (edge === 1) { startX = 2148; // Right of the screen startY = Math.random() * 2732; } else if (edge === 2) { startX = Math.random() * 2048; startY = 2832; // Below the screen } else { startX = -100; // Left of the screen startY = Math.random() * 2732; } var newEnemyBig = new EnemyBig(startX, startY); newEnemyBig.speed *= 1.1; // Increase speed by 10% game.addChild(newEnemyBig); enemies.push(newEnemyBig); } } else { // Blink effect enemyBigGraphics.alpha = 0.5; LK.setTimeout(function () { enemyBigGraphics.alpha = 1; }, 100); } }; }); // EnemyBoss class var EnemyBoss = Container.expand(function (startX, startY) { var self = Container.call(this); var enemyBossGraphics = self.attachAsset('enemyBoss', { anchorX: 0.5, anchorY: 0.5, scaleX: 1, scaleY: 1 }); self.lastIntersecting = false; self.x = startX; self.y = startY; self.speed = 0.175; self.health = 30; // Takes 30 shots to be killed self.update = function () { var dx = player.x - self.x; var dy = player.y - self.y; var distance = Math.sqrt(dx * dx + dy * dy); self.x += dx / distance * self.speed; self.y += dy / distance * self.speed; enemyBossGraphics.scaleX = self.x > 1024 ? -2 : 2; if (self.intersects(player) && !self.lastIntersecting) { // Handle player damage playerHealth -= 1; if (playerHealth >= 0) { hearts[playerHealth].destroy(); // Remove a heart when player takes damage hearts.pop(); } if (playerHealth <= 0) { LK.showGameOver(); // End the game when player health reaches zero } else { // Trigger game over when EnemyBoss hits the player LK.showGameOver(); } } self.lastIntersecting = self.intersects(player); }; self.takeDamage = function () { self.health -= 1; if (self.health <= 0) { self.destroy(); LK.showYouWin(); // Trigger game win when EnemyBoss is destroyed } else { // Blink effect enemyBossGraphics.alpha = 0.5; LK.setTimeout(function () { enemyBossGraphics.alpha = 1; }, 100); } }; }); // // // Player class var Player = Container.expand(function () { var self = Container.call(this); var playerGraphics = self.attachAsset('player', { anchorX: 0.5, anchorY: 0.5 }); self.shootDirection = { x: 0, y: 0 }; self.projectiles = 1; self.update = function () { // Player shooting logic if (LK.ticks % 75 === 0) { for (var i = 0; i < self.projectiles; i++) { LK.setTimeout(function () { var bullet = new Bullet(self.x, self.y, self.shootDirection); game.addChild(bullet); bullets.push(bullet); }, i * 100); } } }; }); // PowerUp class var PowerUp = Container.expand(function (startX, startY) { var self = Container.call(this); var powerUpGraphics = self.attachAsset('powerUp', { anchorX: 0.5, anchorY: 0.5, scaleX: 2, scaleY: 2 }); self.x = startX; self.y = startY; self.update = function () { // Move power-up towards the player var dx = player.x - self.x; var dy = player.y - self.y; var distance = Math.sqrt(dx * dx + dy * dy); self.x += dx / distance * 0.25; // Adjust speed as needed self.y += dy / distance * 0.25; // Adjust speed as needed // Check for collision with bullets for (var i = bullets.length - 1; i >= 0; i--) { if (bullets[i].intersects(self)) { // Destroy both bullet and powerUp bullets[i].destroy(); bullets.splice(i, 1); self.destroy(); // Increase player's fire rate by 100% player.shootInterval *= 0.5; // Increase the number of projectiles fired by the player player.projectiles += 1; // Destroy power-up object when picked powerUps.splice(powerUps.indexOf(self), 1); break; } } }; }); /**** * Initialize Game ****/ var game = new LK.Game({ backgroundColor: 0x000000 //Init game with black background }); /**** * Game Code ****/ // Add background to the game var background = LK.getAsset('background', { anchorX: 0.5, anchorY: 0.5 }); background.x = 1024; background.y = 1366; game.addChild(background); // Initialize player var player = game.addChild(new Player()); player.x = 1024; player.y = 1366; // Initialize bullets, enemies and powerUps arrays var bullets = []; var enemies = []; var powerUps = []; // Player health var playerHealth = 5; // Display player's health as hearts var hearts = []; for (var i = 0; i < playerHealth; i++) { var heart = LK.getAsset('heart', { anchorX: 0.5, anchorY: 0.5 }); heart.x = -300 + i * 150; // Position hearts with some spacing heart.y = 200; // Position hearts at the top of the screen LK.gui.top.addChild(heart); hearts.push(heart); } // Initialize score var score = 0; // Create score text var scoreText = new Text2('Score: 0', { size: 50, fill: 0xFFFFFF }); scoreText.anchor.set(0.5, 0); LK.gui.top.addChild(scoreText); // Game update function game.update = function () { // Update player direction based on pointer game.move = function (x, y, obj) { var dx = x - player.x; var dy = y - player.y; var distance = Math.sqrt(dx * dx + dy * dy); player.shootDirection = { x: dx / distance, y: dy / distance }; }; // Spawn enemies at random edges if (LK.ticks % 120 === 0) { var edge = Math.floor(Math.random() * 4); var startX, startY; if (edge === 0) { // Top startX = Math.random() * 2048; startY = 0; } else if (edge === 1) { // Right startX = 2048; startY = Math.random() * 2732; } else if (edge === 2) { // Bottom startX = Math.random() * 2048; startY = 2732; } else { // Left startX = 0; startY = Math.random() * 2732; } var enemy = new Enemy(startX, startY); game.addChild(enemy); enemies.push(enemy); } // Spawn powerUps at random positions every 5 seconds if (LK.ticks % 300 === 0) { var startX = Math.random() * 2048; var startY = Math.random() * 2732; var powerUp = new PowerUp(startX, startY); game.addChild(powerUp); powerUps.push(powerUp); } // Spawn EnemyBig after 7 seconds if there are less than 20 if (LK.ticks === 420 && enemies.filter(function (e) { return e instanceof EnemyBig; }).length < 20) { // 7 seconds * 60 FPS = 420 ticks var edge = Math.floor(Math.random() * 4); var startX, startY; if (edge === 0) { // Top startX = Math.random() * 2048; startY = 0; } else if (edge === 1) { // Right startX = 2048; startY = Math.random() * 2732; } else if (edge === 2) { // Bottom startX = Math.random() * 2048; startY = 2732; } else { // Left startX = 0; startY = Math.random() * 2732; } var enemyBig = new EnemyBig(startX, startY); game.addChild(enemyBig); enemies.push(enemyBig); } // Spawn EnemyBoss after 10 seconds if (LK.ticks === 600) { // 10 seconds * 60 FPS = 600 ticks var edge = Math.floor(Math.random() * 4); var startX, startY; if (edge === 0) { // Top startX = Math.random() * 2048; startY = 0; } else if (edge === 1) { // Right startX = 2048; startY = Math.random() * 2732; } else if (edge === 2) { // Bottom startX = Math.random() * 2048; startY = 2732; } else { // Left startX = 0; startY = Math.random() * 2732; } var enemyBoss = new EnemyBoss(startX, startY); game.addChild(enemyBoss); enemies.push(enemyBoss); } // Update bullets for (var i = bullets.length - 1; i >= 0; i--) { bullets[i].update(); // Check for collision with enemies for (var j = enemies.length - 1; j >= 0; j--) { if (bullets[i].intersects(enemies[j])) { // Destroy bullet bullets[i].destroy(); bullets.splice(i, 1); // Check if enemy is EnemyBig or EnemyBoss if (enemies[j] instanceof EnemyBig || enemies[j] instanceof EnemyBoss) { enemies[j].takeDamage(); if (enemies[j].health <= 0) { enemies[j].destroy(); enemies.splice(j, 1); // Add 1 to score every time a bullet destroys an enemy score += 1; scoreText.setText('Score: ' + score); // Spawn two new EnemyBig at random edges if total is less than 20 if (enemies[j] instanceof EnemyBig) { var currentEnemyBigCount = enemies.filter(function (e) { return e instanceof EnemyBig; }).length; for (var k = 0; k < 2 && currentEnemyBigCount < 20; k++, currentEnemyBigCount++) { var edge = Math.floor(Math.random() * 4); var startX, startY; if (edge === 0) { startX = Math.random() * 2048; startY = 0; } else if (edge === 1) { startX = 2048; startY = Math.random() * 2732; } else if (edge === 2) { startX = Math.random() * 2048; startY = 2732; } else { startX = 0; startY = Math.random() * 2732; } var newEnemyBig = new EnemyBig(startX, startY); game.addChild(newEnemyBig); enemies.push(newEnemyBig); } } } } else { // Destroy enemy enemies[j].destroy(); enemies.splice(j, 1); // Add 1 to score every time a bullet destroys an enemy score += 1; scoreText.setText('Score: ' + score); } break; } } if (bullets[i] && bullets[i].destroyed) { bullets.splice(i, 1); } } // Update enemies for (var j = enemies.length - 1; j >= 0; j--) { enemies[j].update(); if (enemies[j].destroyed) { enemies.splice(j, 1); } } // Update powerUps for (var i = powerUps.length - 1; i >= 0; i--) { powerUps[i].update(); if (powerUps[i] && powerUps[i].destroyed) { powerUps.splice(i, 1); } } };