/**** * Plugins ****/ var tween = LK.import("@upit/tween.v1"); /**** * Classes ****/ var Asteroid = Container.expand(function () { var self = Container.call(this); var asteroidGraphics = self.attachAsset('asteroid', { anchorX: 0.5, anchorY: 0.5 }); self.velocityX = (Math.random() - 0.5) * 4; self.velocityY = Math.random() * 3 + 2; self.rotationSpeed = (Math.random() - 0.5) * 0.2; self.speed = 1.5 + difficultyLevel * 0.5; // Speed multiplier increases with difficulty level self.update = function () { self.x += self.velocityX * self.speed; self.y += self.velocityY * self.speed; self.rotation += self.rotationSpeed; // Bounce off screen edges with angle reflection if (self.x <= 0 || self.x >= 2048) { self.velocityX = -self.velocityX; // Reverse horizontal velocity if (self.x <= 0) self.x = 0; if (self.x >= 2048) self.x = 2048; } if (self.y <= 0 || self.y >= 2732) { self.velocityY = -self.velocityY; // Reverse vertical velocity if (self.y <= 0) self.y = 0; if (self.y >= 2732) self.y = 2732; } }; return self; }); var Bullet = Container.expand(function () { var self = Container.call(this); var bulletGraphics = self.attachAsset('bullet', { anchorX: 0.5, anchorY: 0.5 }); self.speed = 30 + difficultyLevel * 6; // 1.5x increased base speed + higher level multiplier self.update = function () { self.y += self.speed; }; return self; }); var Platform = Container.expand(function () { var self = Container.call(this); var platformGraphics = self.attachAsset('platform', { anchorX: 0.5, anchorY: 0.5 }); self.velocityY = 2; self.hasLanded = false; self.update = function () { self.y += self.velocityY; }; return self; }); var Spaceship = Container.expand(function () { var self = Container.call(this); var shipGraphics = self.attachAsset('spaceship', { anchorX: 0.5, anchorY: 0.5 }); self.velocityX = 0; self.velocityY = 0; self.maxSpeed = 8; self.friction = 0.85; self.update = function () { // Apply velocity self.x += self.velocityX; self.y += self.velocityY; // Apply friction self.velocityX *= self.friction; self.velocityY *= self.friction; // Keep ship within bounds if (self.x < 40) self.x = 40; if (self.x > 2008) self.x = 2008; if (self.y < 60) self.y = 60; if (self.y > 2672) self.y = 2672; }; return self; }); /**** * Initialize Game ****/ var game = new LK.Game({ backgroundColor: 0x000011 }); /**** * Game Code ****/ var spaceship = game.addChild(new Spaceship()); spaceship.x = 1024; spaceship.y = 150; var asteroids = []; var bullets = []; var platforms = []; var dragNode = null; var lastTouchTime = 0; var difficultyLevel = 1; var asteroidSpawnRate = 180; // Initial spawn rate in ticks // Score display var scoreTxt = new Text2('Score: 0', { size: 80, fill: 0xFFFFFF }); scoreTxt.anchor.set(0.5, 0); LK.gui.top.addChild(scoreTxt); // Level display var levelTxt = new Text2('Level: 1', { size: 60, fill: 0xFFFFFF }); levelTxt.anchor.set(0, 0); LK.gui.topLeft.addChild(levelTxt); function updateScore() { scoreTxt.setText('Score: ' + LK.getScore()); } function updateLevel() { levelTxt.setText('Level: ' + difficultyLevel); } // Create single asteroid var singleAsteroid = game.addChild(new Asteroid()); // Always spawn from sides (left or right) if (Math.random() < 0.5) { // Spawn from left side singleAsteroid.x = 0; singleAsteroid.velocityX = Math.random() * 3 + 2; // Move right } else { // Spawn from right side singleAsteroid.x = 2048; singleAsteroid.velocityX = -(Math.random() * 3 + 2); // Move left } singleAsteroid.y = Math.random() * 1000 + 800; // Middle area of screen singleAsteroid.velocityY = (Math.random() - 0.5) * 3; // Random vertical movement singleAsteroid.speed = 1.5; // Initial speed multiplier asteroids.push(singleAsteroid); // Create single landing platform at bottom var landingPlatform = game.addChild(new Platform()); landingPlatform.x = 1024; landingPlatform.y = 2600; landingPlatform.velocityY = 0; // Make it stationary platforms.push(landingPlatform); function fireBullet() { var bullet = new Bullet(); bullet.speed = 30 + difficultyLevel * 6; // Update speed based on current level with 1.5x increased values bullet.x = spaceship.x; bullet.y = spaceship.y + 60; bullet.lastY = bullet.y; bullets.push(bullet); game.addChild(bullet); LK.getSound('shoot').play(); } function handleMove(x, y, obj) { if (dragNode) { var deltaX = x - dragNode.x; var deltaY = y - dragNode.y; dragNode.velocityX += deltaX * 0.3; dragNode.velocityY += deltaY * 0.3; // Limit velocity if (dragNode.velocityX > dragNode.maxSpeed) dragNode.velocityX = dragNode.maxSpeed; if (dragNode.velocityX < -dragNode.maxSpeed) dragNode.velocityX = -dragNode.maxSpeed; if (dragNode.velocityY > dragNode.maxSpeed) dragNode.velocityY = dragNode.maxSpeed; if (dragNode.velocityY < -dragNode.maxSpeed) dragNode.velocityY = -dragNode.maxSpeed; } } game.move = handleMove; game.down = function (x, y, obj) { var currentTime = Date.now(); // Check for tap to shoot (if not dragging and within reasonable time) if (!dragNode && currentTime - lastTouchTime > 200) { fireBullet(); } // Start dragging spaceship dragNode = spaceship; lastTouchTime = currentTime; }; game.up = function (x, y, obj) { dragNode = null; }; game.update = function () { // Increase difficulty over time if (LK.ticks % 1800 == 0) { // Every 30 seconds difficultyLevel++; asteroidSpawnRate = Math.max(60, asteroidSpawnRate - 20); // Increase existing asteroid speed if (singleAsteroid) { singleAsteroid.speed = 1.5 + difficultyLevel * 0.5; } } // Single asteroid and platform gameplay - no spawning needed // Update bullets for (var i = bullets.length - 1; i >= 0; i--) { var bullet = bullets[i]; // Remove bullets that go off screen (bottom) if (bullet.lastY <= 2762 && bullet.y > 2762) { bullet.destroy(); bullets.splice(i, 1); continue; } bullet.lastY = bullet.y; } // Update asteroids for (var j = asteroids.length - 1; j >= 0; j--) { var asteroid = asteroids[j]; // Check collision with spaceship if (asteroid.intersects(spaceship)) { LK.effects.flashScreen(0xff0000, 500); LK.showGameOver(); return; } // Check collision with bullets for (var k = bullets.length - 1; k >= 0; k--) { var bullet = bullets[k]; if (bullet.intersects(asteroid)) { // Destroy both asteroid and bullet LK.setScore(LK.getScore() + 10); updateScore(); LK.getSound('explosion').play(); asteroid.destroy(); asteroids.splice(j, 1); bullet.destroy(); bullets.splice(k, 1); break; } } } // Update platforms for (var l = platforms.length - 1; l >= 0; l--) { var platform = platforms[l]; // Check landing on platform if (!platform.hasLanded && platform.intersects(spaceship)) { // Successful landing - award points and level up LK.setScore(LK.getScore() + 50); updateScore(); LK.getSound('landing').play(); platform.hasLanded = true; // Flash platform green LK.effects.flashObject(platform, 0x00ff00, 1000); // Level up difficultyLevel++; updateLevel(); // Reset spaceship to top spaceship.x = 1024; spaceship.y = 150; spaceship.velocityX = 0; spaceship.velocityY = 0; // Reset platform platform.hasLanded = false; // Create new asteroid with increased difficulty if (singleAsteroid) { singleAsteroid.destroy(); asteroids.splice(0, 1); } singleAsteroid = game.addChild(new Asteroid()); // Always spawn from sides (left or right) if (Math.random() < 0.5) { // Spawn from left side singleAsteroid.x = 0; singleAsteroid.velocityX = Math.random() * (3 + difficultyLevel) + 2; // Move right } else { // Spawn from right side singleAsteroid.x = 2048; singleAsteroid.velocityX = -(Math.random() * (3 + difficultyLevel) + 2); // Move left } singleAsteroid.y = Math.random() * 1000 + 800; singleAsteroid.velocityY = (Math.random() - 0.5) * (3 + difficultyLevel); singleAsteroid.speed = 1.5 + difficultyLevel * 0.5; // Increase speed with level - higher multiplier asteroids.push(singleAsteroid); } } // Check win condition if (LK.getScore() >= 1000) { LK.showYouWin(); } };