/**** * Plugins ****/ var tween = LK.import("@upit/tween.v1"); var storage = LK.import("@upit/storage.v1", { highScore: 0 }); /**** * Classes ****/ var Bird = Container.expand(function () { var self = Container.call(this); var birdSprite = self.attachAsset('bird', { anchorX: 0.5, anchorY: 0.5 }); self.velocity = 0; self.gravity = 0.25; self.jumpPower = -8; self.rotation = 0; self.dead = false; self.flap = function () { if (self.dead) return; self.velocity = self.jumpPower; LK.getSound('flap').play(); tween(self, { rotation: -0.5 }, { duration: 100, easing: tween.easeOut }); }; self.update = function () { if (self.dead) return; self.velocity += self.gravity; self.y += self.velocity; // Rotate bird based on velocity if (self.velocity > 0) { var targetRotation = Math.min(Math.PI / 2, self.velocity * 0.05); tween.stop(self, { rotation: true }); tween(self, { rotation: targetRotation }, { duration: 100, easing: tween.linear }); } }; self.die = function () { if (self.dead) return; self.dead = true; LK.getSound('hit').play(); tween.stop(self); }; return self; }); var Coin = Container.expand(function () { var self = Container.call(this); self.coinSprite = self.attachAsset('coin', { anchorX: 0.5, anchorY: 0.5 }); self.speed = 4; self.collected = false; self.update = function () { self.x -= self.speed; }; self.checkCollection = function (bird) { if (self.collected || bird.dead) return false; // Simple circular collision detection var birdBounds = { x: bird.x, y: bird.y, radius: 25 // Half of bird width }; var coinBounds = { x: self.x, y: self.y, radius: 25 // Half of coin width }; var dx = birdBounds.x - coinBounds.x; var dy = birdBounds.y - coinBounds.y; var distance = Math.sqrt(dx * dx + dy * dy); if (distance < birdBounds.radius + coinBounds.radius) { self.collected = true; return true; } return false; }; return self; }); var Pipe = Container.expand(function () { var self = Container.call(this); self.topPipe = self.attachAsset('pipe', { anchorX: 0.5, anchorY: 1.0 }); self.bottomPipe = self.attachAsset('pipe', { anchorX: 0.5, anchorY: 0.0 }); self.speed = 2.5; self.scored = false; self.gapHeight = 600; self.setGapPosition = function (yPos) { // Make top pipe extend from top of screen to gap self.topPipe.y = yPos - self.gapHeight / 2; self.topPipe.height = yPos - self.gapHeight / 2; // Make bottom pipe extend from gap to ground self.bottomPipe.y = yPos + self.gapHeight / 2; self.bottomPipe.height = 2732 - (yPos + self.gapHeight / 2) - 100; // Account for ground height }; self.update = function () { self.x -= self.speed; }; self.checkCollision = function (bird) { if (bird.dead) return false; // Convert positions to global space for collision check var birdBounds = { x: bird.x - 15, y: bird.y - 12.5, width: 30, height: 25 }; var topPipeBounds = { x: self.x - 75, y: self.topPipe.y - self.topPipe.height, width: 150, height: self.topPipe.height }; var bottomPipeBounds = { x: self.x - 75, y: self.bottomPipe.y, width: 150, height: self.bottomPipe.height }; // Check if bird collides with either pipe if (birdBounds.x + birdBounds.width > topPipeBounds.x && birdBounds.x < topPipeBounds.x + topPipeBounds.width && birdBounds.y < topPipeBounds.y + topPipeBounds.height && birdBounds.y + birdBounds.height > topPipeBounds.y) { return true; } if (birdBounds.x + birdBounds.width > bottomPipeBounds.x && birdBounds.x < bottomPipeBounds.x + bottomPipeBounds.width && birdBounds.y < bottomPipeBounds.y + bottomPipeBounds.height && birdBounds.y + birdBounds.height > bottomPipeBounds.y) { return true; } return false; }; self.checkPassed = function (bird) { if (self.scored || bird.dead) return false; if (self.x + 50 < bird.x - 25) { self.scored = true; return true; } return false; }; return self; }); /**** * Initialize Game ****/ var game = new LK.Game({ backgroundColor: 0x87CEEB }); /**** * Game Code ****/ // Game variables var bird; var pipes = []; var coins = []; var ground; var background; var gameStarted = false; var gameOver = false; var score = 0; var highScore = storage.highScore || 0; var pipeSpawnTimer = 0; var pipeSpawnInterval = 180; // frames (3 seconds at 60fps) // Setup UI // Create a box for the score var scoreBox = LK.getAsset('ground', { width: 220, height: 90, color: 0x222222, anchorX: 0.5, anchorY: 0, x: 0, y: 0 }); scoreBox.alpha = 0.7; LK.gui.top.addChild(scoreBox); scoreBox.y = 40; scoreBox.x = 0; // Score text var scoreTxt = new Text2('0', { size: 100, fill: 0xFFFFFF }); scoreTxt.anchor.set(0.5, 0); LK.gui.top.addChild(scoreTxt); scoreTxt.y = 50; scoreTxt.x = 0; var instructionsTxt = new Text2('Tap to flap!', { size: 70, fill: 0xFFFFFF }); instructionsTxt.anchor.set(0.5, 0.5); LK.gui.center.addChild(instructionsTxt); // Create a box for the high score var highScoreBox = LK.getAsset('ground', { width: 420, height: 90, color: 0x222222, anchorX: 1, anchorY: 0, x: 0, y: 0 }); highScoreBox.alpha = 0.7; LK.gui.topRight.addChild(highScoreBox); highScoreBox.x = -10; highScoreBox.y = 10; var highScoreTxt = new Text2('High Score: ' + highScore, { size: 50, fill: 0xFFFFFF }); highScoreTxt.anchor.set(1, 0); LK.gui.topRight.addChild(highScoreTxt); highScoreTxt.x = -30; highScoreTxt.y = 30; // Position score box and score text next to high score box scoreBox.x = -highScoreBox.width - 30; scoreBox.y = 40; scoreTxt.x = scoreBox.x; scoreTxt.y = scoreBox.y + 10; // Create background background = LK.getAsset('background', { anchorX: 0, anchorY: 0, x: 0, y: 0 }); game.addChild(background); // Create ground ground = LK.getAsset('ground', { anchorX: 0, anchorY: 0, x: 0, y: 2732 - 100 }); game.addChild(ground); // Create bird bird = new Bird(); bird.x = 400; bird.y = 2732 / 2; game.addChild(bird); // Define floating animation but don't use it function floatBird() { tween(bird, { y: bird.y - 50 }, { duration: 1000, easing: tween.easeInOut, onFinish: function onFinish() { tween(bird, { y: bird.y + 50 }, { duration: 1000, easing: tween.easeInOut, onFinish: floatBird }); } }); } // Don't call floatBird() to prevent hovering animation // Function to start the game function startGame() { if (gameStarted || gameOver) return; gameStarted = true; LK.gui.center.removeChild(instructionsTxt); bird.flap(); // Play background music LK.playMusic('gameMusic'); } // Function to reset the game function resetGame() { // Clear pipes for (var i = 0; i < pipes.length; i++) { game.removeChild(pipes[i]); } pipes = []; // Clear coins for (var i = 0; i < coins.length; i++) { game.removeChild(coins[i]); } coins = []; // Reset bird game.removeChild(bird); bird = new Bird(); bird.x = 400; bird.y = 2732 / 2; game.addChild(bird); // Reset game state gameStarted = false; gameOver = false; score = 0; pipeSpawnTimer = 0; scoreTxt.setText("0"); // Show instructions again LK.gui.center.addChild(instructionsTxt); } // Function to spawn a new pipe function spawnPipe() { var pipe = new Pipe(); pipe.x = 2048 + 100; // Start off-screen to the right // Random gap position between 20% and 80% of screen height var minY = 2732 * 0.2; var maxY = 2732 * 0.8 - 100; // Account for ground var gapY = minY + Math.random() * (maxY - minY); pipe.setGapPosition(gapY); pipes.push(pipe); game.addChild(pipe); // Add a coin in the middle of the gap var coin = new Coin(); coin.x = pipe.x; // Same x position as pipe coin.y = gapY; // In the middle of the gap coin.lastX = coin.x; // Initialize lastX for tracking coins.push(coin); game.addChild(coin); } // Input events game.down = function (x, y, obj) { if (!gameStarted) { startGame(); } else if (!gameOver) { bird.flap(); } else { resetGame(); } }; // Game update logic game.update = function () { if (!gameStarted) return; // Update bird bird.update(); // Check if bird hits the ground or flies too high if (bird.y > 2732 - 100 - 17.5 || bird.y < 0) { if (!gameOver) { gameOver = true; bird.die(); // Update high score if needed if (score > highScore) { highScore = score; storage.highScore = highScore; highScoreTxt.setText('High Score: ' + highScore); } LK.showGameOver(); } // Keep bird above ground if (bird.y > 2732 - 100 - 17.5) { bird.y = 2732 - 100 - 17.5; bird.velocity = 0; } return; } // Spawn pipes if (gameStarted && !gameOver) { pipeSpawnTimer++; if (pipeSpawnTimer >= pipeSpawnInterval) { spawnPipe(); pipeSpawnTimer = 0; } } // Update pipes and check collisions for (var i = pipes.length - 1; i >= 0; i--) { var pipe = pipes[i]; pipe.update(); // Remove pipes that have gone off screen if (pipe.x < -100) { game.removeChild(pipe); pipes.splice(i, 1); continue; } // Check if bird passed pipe for scoring if (pipe.checkPassed(bird)) { score++; scoreTxt.setText(score.toString()); LK.setScore(score); LK.getSound('score').play(); } // Check for collision with pipes if (pipe.checkCollision(bird)) { if (!gameOver) { gameOver = true; bird.die(); // Update high score if needed if (score > highScore) { highScore = score; storage.highScore = highScore; highScoreTxt.setText('High Score: ' + highScore); } LK.showGameOver(); } } } // Update coins and check collections for (var i = coins.length - 1; i >= 0; i--) { var coin = coins[i]; // Find the pipe this coin belongs to (the one closest in x, and ahead of the coin) var closestPipe = null; var minDist = Infinity; for (var j = 0; j < pipes.length; j++) { var pipe = pipes[j]; // Coin should be between the pipes, so match by x proximity var dist = Math.abs(pipe.x - coin.x); if (dist < minDist && pipe.x >= coin.x - 200 && pipe.x <= coin.x + 200) { minDist = dist; closestPipe = pipe; } } // If found, keep coin between the pipes if (closestPipe) { coin.x = closestPipe.x; // Place coin in the center of the gap coin.y = closestPipe.topPipe.y + closestPipe.gapHeight / 2; } coin.update(); // Remove coins that have gone off screen if (coin.x < -50) { game.removeChild(coin); coins.splice(i, 1); continue; } // Check if bird collected the coin if (coin.checkCollection(bird)) { // Add points for collecting the coin score += 5; scoreTxt.setText(score.toString()); LK.setScore(score); LK.getSound('coin').play(); // Visually remove the coin game.removeChild(coin); coins.splice(i, 1); } } };