/**** * Plugins ****/ var tween = LK.import("@upit/tween.v1"); /**** * Classes ****/ var Ball = Container.expand(function () { var self = Container.call(this); var ballGraphics = self.attachAsset('ball', { anchorX: 0.5, anchorY: 0.5 }); self.speed = 12 + Math.random() * 8; // Random speed between 12-20 for music sync self.lastY = 0; self.lastCaught = false; self.update = function () { self.y += self.speed; }; return self; }); var Crystal = Container.expand(function () { var self = Container.call(this); var crystalGraphics = self.attachAsset('crystal', { anchorX: 0.5, anchorY: 0.5 }); crystalGraphics.rotation = Math.PI / 4; // Rotate 45 degrees for visual distinction self.speed = 10 + Math.random() * 6; // Slightly different speed range self.lastY = 0; self.lastCaught = false; self.update = function () { self.y += self.speed; crystalGraphics.rotation += 0.1; // Rotate while falling }; return self; }); var Player = Container.expand(function () { var self = Container.call(this); var playerGraphics = self.attachAsset('player', { anchorX: 0.5, anchorY: 0.5 }); return self; }); /**** * Initialize Game ****/ var game = new LK.Game({ backgroundColor: 0x2c3e50 }); /**** * Game Code ****/ // Game variables var player; var balls = []; var crystals = []; var dragNode = null; var ballSpawnTimer = 0; var ballSpawnInterval = 45; // Spawn every 0.75 seconds at 60fps for faster pace // Background elements var backgroundStars = []; var backgroundNebulae = []; var backgroundPlanets = []; // Create animated starfield background function createBackground() { // Create stars for (var i = 0; i < 150; i++) { var star = game.addChild(LK.getAsset('star', { anchorX: 0.5, anchorY: 0.5 })); star.x = Math.random() * 2048; star.y = Math.random() * 2732; star.alpha = 0.3 + Math.random() * 0.7; star.speed = 0.5 + Math.random() * 2; backgroundStars.push(star); } // Create big stars for (var i = 0; i < 20; i++) { var bigStar = game.addChild(LK.getAsset('bigStar', { anchorX: 0.5, anchorY: 0.5 })); bigStar.x = Math.random() * 2048; bigStar.y = Math.random() * 2732; bigStar.alpha = 0.4 + Math.random() * 0.6; bigStar.speed = 0.3 + Math.random() * 1; backgroundStars.push(bigStar); } // Create nebulae for (var i = 0; i < 8; i++) { var nebula = game.addChild(LK.getAsset('nebula', { anchorX: 0.5, anchorY: 0.5 })); nebula.x = Math.random() * 2048; nebula.y = Math.random() * 2732; nebula.alpha = 0.1 + Math.random() * 0.2; nebula.speed = 0.2 + Math.random() * 0.8; nebula.scaleX = 0.5 + Math.random() * 1.5; nebula.scaleY = 0.5 + Math.random() * 1.5; backgroundNebulae.push(nebula); } // Create planets for (var i = 0; i < 3; i++) { var planet = game.addChild(LK.getAsset(Math.random() > 0.5 ? 'planet1' : 'planet2', { anchorX: 0.5, anchorY: 0.5 })); planet.x = Math.random() * 2048; planet.y = Math.random() * 2732; planet.alpha = 0.3 + Math.random() * 0.4; planet.speed = 0.1 + Math.random() * 0.5; backgroundPlanets.push(planet); } } // Update background animation function updateBackground() { // Animate stars for (var i = 0; i < backgroundStars.length; i++) { var star = backgroundStars[i]; star.y += star.speed; star.alpha += Math.sin(LK.ticks * 0.1 + i) * 0.01; // Reset star position when it goes off screen if (star.y > 2732 + 50) { star.y = -50; star.x = Math.random() * 2048; } } // Animate nebulae for (var i = 0; i < backgroundNebulae.length; i++) { var nebula = backgroundNebulae[i]; nebula.y += nebula.speed; nebula.rotation += 0.005; // Reset nebula position when it goes off screen if (nebula.y > 2732 + 200) { nebula.y = -200; nebula.x = Math.random() * 2048; } } // Animate planets for (var i = 0; i < backgroundPlanets.length; i++) { var planet = backgroundPlanets[i]; planet.y += planet.speed; planet.rotation += 0.002; // Reset planet position when it goes off screen if (planet.y > 2732 + 150) { planet.y = -150; planet.x = Math.random() * 2048; } } } // Initialize background createBackground(); // Score display var scoreTxt = new Text2('0', { size: 120, fill: 0xFFFFFF }); scoreTxt.anchor.set(0.5, 0); LK.gui.top.addChild(scoreTxt); // Create player player = game.addChild(new Player()); player.x = 2048 / 2; player.y = 2732 - 150; // Near bottom of screen // Music will start after first ball is caught var musicStarted = false; // Move handler function handleMove(x, y, obj) { if (dragNode) { dragNode.x = x; // Keep player within screen bounds if (dragNode.x < 60) dragNode.x = 60; if (dragNode.x > 2048 - 60) dragNode.x = 2048 - 60; } } // Event handlers game.move = handleMove; game.down = function (x, y, obj) { dragNode = player; handleMove(x, y, obj); }; game.up = function (x, y, obj) { dragNode = null; }; // Main game update loop game.update = function () { // Update animated background updateBackground(); // Spawn balls and crystals ballSpawnTimer++; if (ballSpawnTimer >= ballSpawnInterval) { ballSpawnTimer = 0; // Randomly spawn either a ball or crystal if (Math.random() < 0.7) { // 70% chance for ball var newBall = new Ball(); newBall.x = 100 + Math.random() * (2048 - 200); // Random x position newBall.y = -50; // Start above screen newBall.lastY = newBall.y; balls.push(newBall); game.addChild(newBall); } else { // 30% chance for crystal var newCrystal = new Crystal(); newCrystal.x = 100 + Math.random() * (2048 - 200); // Random x position newCrystal.y = -50; // Start above screen newCrystal.lastY = newCrystal.y; crystals.push(newCrystal); game.addChild(newCrystal); } } // Update balls and check collisions for (var i = balls.length - 1; i >= 0; i--) { var ball = balls[i]; // Check if ball touches player var currentCaught = ball.intersects(player); if (!ball.lastCaught && currentCaught) { // Start music when ball first touches player if (!musicStarted) { LK.playMusic('background'); musicStarted = true; } // Ball just got caught LK.setScore(LK.getScore() + 1); scoreTxt.setText(LK.getScore()); LK.getSound('catch').play(); ball.destroy(); balls.splice(i, 1); continue; } // Check if ball hit the ground (missed) if (ball.lastY < 2732 && ball.y >= 2732) { // Ball just hit the ground - game over LK.stopMusic(); LK.showGameOver(); return; } // Remove balls that are way off screen if (ball.y > 2732 + 100) { ball.destroy(); balls.splice(i, 1); continue; } // Update last states ball.lastY = ball.y; ball.lastCaught = currentCaught; } // Update crystals and check collisions for (var j = crystals.length - 1; j >= 0; j--) { var crystal = crystals[j]; // Check if crystal touches player var currentCrystalCaught = crystal.intersects(player); if (!crystal.lastCaught && currentCrystalCaught) { // Start music when crystal first touches player if (!musicStarted) { LK.playMusic('background'); musicStarted = true; } // Crystal just got caught - worth more points LK.setScore(LK.getScore() + 2); scoreTxt.setText(LK.getScore()); LK.getSound('catch').play(); crystal.destroy(); crystals.splice(j, 1); continue; } // Check if crystal hit the ground (missed) if (crystal.lastY < 2732 && crystal.y >= 2732) { // Crystal just hit the ground - game over LK.stopMusic(); LK.showGameOver(); return; } // Remove crystals that are way off screen if (crystal.y > 2732 + 100) { crystal.destroy(); crystals.splice(j, 1); continue; } // Update last states crystal.lastY = crystal.y; crystal.lastCaught = currentCrystalCaught; } };