/**** * Plugins ****/ var tween = LK.import("@upit/tween.v1"); /**** * Classes ****/ // Block class: falling piano key var Block = Container.expand(function () { var self = Container.call(this); // Attach block asset var blockAsset = self.attachAsset('block', { anchorX: 0.5, anchorY: 0.5 }); // Track if block has been hit or missed self.hit = false; self.missed = false; // For hit effect self.showHitEffect = function () { var effect = LK.getAsset('hitEffect', { anchorX: 0.5, anchorY: 0.5, x: 0, y: 0 }); self.addChild(effect); tween(effect, { alpha: 0 }, { duration: 300, easing: tween.linear, onFinish: function onFinish() { effect.destroy(); } }); }; return self; }); /**** * Initialize Game ****/ var game = new LK.Game({ backgroundColor: 0x181818 }); /**** * Game Code ****/ // Background asset covering the entire game area // --- FULLSCREEN BACKGROUND --- // Create a background image that covers the entire game area var background = LK.getAsset('background', { anchorX: 0, anchorY: 0, x: 0, y: 0, scaleX: 1, scaleY: 1 }); game.addChild(background); // Piano note sounds for each lane (C, D, E, G as example) // Music (looping, but we will play it once per game) // Sound for miss // Sound for block hit // Block hit effect // Target line // Falling block (piano key) // --- GAME CONSTANTS --- // Piano note sounds for each lane // Piano note sounds for each lane (C, D, E, G as example) var NUM_LANES = 4; var LANE_WIDTH = 400; // 2048/4 = 512, but leave some margin var BLOCK_WIDTH = 300; var BLOCK_HEIGHT = 120; var BLOCK_SPEED_START = 12; // px per frame (60fps) var BLOCK_SPEED_MAX = 32; var BLOCK_SPEED_INCREMENT = 0.5; // per level var BLOCK_SPAWN_INTERVAL = 48; // frames between blocks (will decrease as tempo increases) var BLOCK_SPAWN_INTERVAL_MIN = 18; var TARGET_LINE_Y = 2732 - 320; // 320px from bottom var HIT_WINDOW = 80; // px window for perfect hit var MISS_WINDOW = 120; // px window for miss // --- GAME STATE --- var blocks = []; var score = 0; var combo = 0; var bestCombo = 0; var blockSpeed = BLOCK_SPEED_START; var blockSpawnInterval = BLOCK_SPAWN_INTERVAL; var ticksSinceLastBlock = 0; var isPlaying = false; var songTicks = 0; var songLengthTicks = 60 * 60; // 60 seconds at 60fps (will end game if song ends) var nextTempoIncrease = 600; // every 10 seconds // --- LANE POSITIONS --- var laneXs = []; for (var i = 0; i < NUM_LANES; i++) { // Center blocks in each lane laneXs[i] = LANE_WIDTH / 2 + i * LANE_WIDTH + (2048 - NUM_LANES * LANE_WIDTH) / 2; } // --- GUI ELEMENTS --- // Score text var scoreTxt = new Text2('0', { size: 120, fill: 0xFFFFFF }); scoreTxt.anchor.set(0.5, 0); LK.gui.top.addChild(scoreTxt); // Combo text var comboTxt = new Text2('', { size: 80, fill: 0xFFE066 }); comboTxt.anchor.set(0.5, 0); LK.gui.top.addChild(comboTxt); comboTxt.y = 130; // Best combo text var bestComboTxt = new Text2('', { size: 60, fill: 0xCCCCCC }); bestComboTxt.anchor.set(0.5, 0); LK.gui.top.addChild(bestComboTxt); bestComboTxt.y = 210; // --- TARGET LINE --- var targetLine = LK.getAsset('targetLine', { anchorX: 0.5, // center horizontally anchorY: 0.5, // center vertically x: 2048 / 2, // center of screen y: 2732 / 2, // exactly center vertically scaleX: 1, scaleY: 1 }); game.addChild(targetLine); // Make it a long, thin horizontal blue bar (yanlamasına uzatılmış mavi çubuk) at the center of the screen targetLine.width = 2000; targetLine.height = 80; // Kalınlaştırıldı targetLine.rotation = 0; // 0 degrees, horizontal (yan) targetLine.x = 2048 / 2; targetLine.y = TARGET_LINE_Y; // targetLine.tint = 0x2196F3; // --- GAME START --- function startGame() { // Reset state for (var i = blocks.length - 1; i >= 0; i--) { blocks[i].destroy(); blocks.splice(i, 1); } score = 0; combo = 0; bestCombo = 0; blockSpeed = BLOCK_SPEED_START; blockSpawnInterval = BLOCK_SPAWN_INTERVAL; ticksSinceLastBlock = 0; isPlaying = true; songTicks = 0; nextTempoIncrease = 600; scoreTxt.setText('0'); comboTxt.setText(''); bestComboTxt.setText(''); // Start music LK.playMusic('pianoTrack', { loop: false }); } startGame(); // --- BLOCK SCHEDULING --- // For MVP, blocks are spawned randomly in lanes, but now in sync with the music beat using LK.music.getBeat API function spawnBlock() { var lane = Math.floor(Math.random() * NUM_LANES); var block = new Block(); block.x = laneXs[lane]; block.y = -BLOCK_HEIGHT / 2; block.lane = lane; block.hit = false; block.missed = false; blocks.push(block); game.addChild(block); } // --- BEAT SYNC SCHEDULING --- var lastBeat = -1; // --- GAME UPDATE --- game.update = function () { if (!isPlaying) return; songTicks++; ticksSinceLastBlock++; // Increase tempo every 10 seconds, but do it smoothly every frame for gradual acceleration if (songTicks >= nextTempoIncrease) { if (blockSpeed < BLOCK_SPEED_MAX) blockSpeed += BLOCK_SPEED_INCREMENT; if (blockSpawnInterval > BLOCK_SPAWN_INTERVAL_MIN) blockSpawnInterval--; nextTempoIncrease += 600; } // Gradually increase block speed and decrease spawn interval every frame for smooth acceleration if (blockSpeed < BLOCK_SPEED_MAX) { blockSpeed += 0.01; // very slow, smooth increase if (blockSpeed > BLOCK_SPEED_MAX) blockSpeed = BLOCK_SPEED_MAX; } if (blockSpawnInterval > BLOCK_SPAWN_INTERVAL_MIN) { blockSpawnInterval -= 0.01; if (blockSpawnInterval < BLOCK_SPAWN_INTERVAL_MIN) blockSpawnInterval = BLOCK_SPAWN_INTERVAL_MIN; } // Spawn new block exactly on music beat using LK.music.getBeat API var currentBeat = LK.music && LK.music.getBeat ? LK.music.getBeat('pianoTrack') : undefined; if (typeof currentBeat === 'number' && currentBeat !== lastBeat) { spawnBlock(); lastBeat = currentBeat; ticksSinceLastBlock = 0; } else if (ticksSinceLastBlock >= blockSpawnInterval && (!(LK.music && LK.music.getBeat) || typeof currentBeat !== 'number')) { // fallback: spawn at interval if beat API not available spawnBlock(); ticksSinceLastBlock = 0; } // Move blocks for (var i = blocks.length - 1; i >= 0; i--) { var block = blocks[i]; if (block.hit || block.missed) continue; block.y += blockSpeed; // Missed block (passed target line + window) if (block.y - TARGET_LINE_Y > MISS_WINDOW) { block.missed = true; combo = 0; comboTxt.setText(''); LK.getSound('miss').play(); // Flash screen red LK.effects.flashScreen(0xff0000, 600); // End game isPlaying = false; LK.stopMusic(); LK.showGameOver(); break; } } // End game if song ends if (songTicks > songLengthTicks) { isPlaying = false; LK.stopMusic(); LK.showYouWin(); } }; // --- INPUT HANDLING --- // Tap/click on falling block at the right time game.down = function (x, y, obj) { if (!isPlaying) return; // Only allow taps below the target line (to avoid accidental taps) if (y < TARGET_LINE_Y - BLOCK_HEIGHT) return; // Find the block closest to the target line in each lane var tapped = false; for (var i = 0; i < NUM_LANES; i++) { // Check if tap is in this lane var laneLeft = laneXs[i] - LANE_WIDTH / 2; var laneRight = laneXs[i] + LANE_WIDTH / 2; if (x >= laneLeft && x < laneRight) { // Find the first block in this lane within the hit window var bestBlock = null; var bestDist = 9999; for (var j = 0; j < blocks.length; j++) { var block = blocks[j]; if (block.lane !== i || block.hit || block.missed) continue; var dist = Math.abs(block.y - TARGET_LINE_Y); if (dist < HIT_WINDOW && dist < bestDist) { bestBlock = block; bestDist = dist; } } if (bestBlock) { // Hit! bestBlock.hit = true; tapped = true; score += 1; combo += 1; if (combo > bestCombo) bestCombo = combo; scoreTxt.setText(score + ''); comboTxt.setText(combo > 1 ? combo + ' combo!' : ''); bestComboTxt.setText('Best: ' + bestCombo); bestBlock.showHitEffect(); // Play a different piano note sound for each lane, randomize note for each tap var noteLane = bestBlock.lane; var noteOptions = ['piano_note_0', 'piano_note_1', 'piano_note_2', 'piano_note_3']; // Pick a random note different from the lane's default var noteId = noteOptions[Math.floor(Math.random() * noteOptions.length)]; LK.getSound(noteId).play(); // Animate block fade out tween(bestBlock, { alpha: 0 }, { duration: 180, onFinish: function onFinish() { bestBlock.destroy(); } }); } break; } } if (!tapped) { // Missed tap (tapped empty lane or wrong time) combo = 0; comboTxt.setText(''); LK.getSound('miss').play(); LK.effects.flashScreen(0xff0000, 400); isPlaying = false; LK.stopMusic(); LK.showGameOver(); } }; // --- GAME OVER / WIN HANDLING --- // (Handled by LK engine, game will be reset automatically) // --- MUSIC RESTART ON GAME RESET --- LK.on('gameReset', function () { startGame(); });