/**** * Classes ****/ // // Ball class var Ball = Container.expand(function () { var self = Container.call(this); var ballGraphics = self.attachAsset('ball', { anchorX: 0.5, anchorY: 0.5 }); self.speedX = 5; self.speedY = 5; self.rotationDirection = 1; // 1 for right, -1 for left self.update = function () { // Check for collision with coins for (var i = 0; i < obstacles.length; i++) { if (obstacles[i] instanceof Coin && self.intersects(obstacles[i])) { // Increase the score by the current scoreMultiplier and remove the Coin score += scoreMultiplier; scoreTxt.setText(score); // Remove the coin from the grid var coinCell = grid.getCell(obstacles[i]); grid.grid[coinCell.row][coinCell.col] = null; // Destroy the coin and remove it from the obstacles array obstacles[i].destroy(); obstacles.splice(i, 1); // Increase the scoreMultiplier for the next coin scoreMultiplier++; // Play the Coin sound LK.getSound('Coin').play(); // Break the loop as the current index is no longer valid break; } } self.x += self.speedX; self.y += self.speedY; self.rotation += 0.05 * self.rotationDirection; // Rotate the ball // Bounce off walls if (self.x - self.width / 2 <= 0) { self.x = self.width / 2; self.speedX *= -1; self.rotationDirection *= -1; // Flip the rotation direction score += scoreMultiplier; scoreTxt.setText(score); scoreMultiplier++; var obstacle = new BlinkingObstacle(); var emptyCells = grid.getEmptyCells(); var randomCell = emptyCells[Math.floor(Math.random() * emptyCells.length)]; obstacle.x = randomCell.col * (2048 / 12) + obstacle.width / 2; obstacle.y = randomCell.row * (2732 / 20) + obstacle.height / 2; obstacles.push(obstacle); game.addChild(obstacle); grid.addObstacle(obstacle, randomCell.row, randomCell.col); // Play the Edge sound LK.getSound('Edge').play(); } else if (self.x + self.width / 2 >= 2048) { self.x = 2048 - self.width / 2; self.speedX *= -1; self.rotationDirection *= -1; // Flip the rotation direction score += scoreMultiplier; scoreTxt.setText(score); scoreMultiplier++; var obstacle = new BlinkingObstacle(); var emptyCells = grid.getEmptyCells(); var randomCell = emptyCells[Math.floor(Math.random() * emptyCells.length)]; obstacle.x = randomCell.col * (2048 / 12) + obstacle.width / 2; obstacle.y = randomCell.row * (2732 / 20) + obstacle.height / 2; obstacles.push(obstacle); game.addChild(obstacle); grid.addObstacle(obstacle, randomCell.row, randomCell.col); // Play the Edge sound LK.getSound('Edge').play(); } if (self.y - self.height / 2 <= 0) { self.y = self.height / 2; self.speedY *= -1; score += scoreMultiplier; scoreTxt.setText(score); scoreMultiplier++; var obstacle = new Obstacle(); var emptyCells = grid.getEmptyCells(); var randomCell = emptyCells[Math.floor(Math.random() * emptyCells.length)]; obstacle.x = randomCell.col * (2048 / 12) + obstacle.width / 2; obstacle.y = randomCell.row * (2732 / 20) + obstacle.height / 2; obstacles.push(obstacle); game.addChild(obstacle); grid.addObstacle(obstacle, randomCell.row, randomCell.col); // Play the Edge sound LK.getSound('Edge').play(); } else if (self.y + self.height / 2 >= 2732) { self.y = 2732 - self.height / 2; self.speedY *= -1; score += scoreMultiplier; scoreTxt.setText(score); scoreMultiplier++; var obstacle = new Obstacle(); var emptyCells = grid.getEmptyCells(); var randomCell = emptyCells[Math.floor(Math.random() * emptyCells.length)]; obstacle.x = randomCell.col * (2048 / 12) + obstacle.width / 2; obstacle.y = randomCell.row * (2732 / 20) + obstacle.height / 2; obstacles.push(obstacle); game.addChild(obstacle); grid.addObstacle(obstacle, randomCell.row, randomCell.col); // Play the Edge sound LK.getSound('Edge').play(); } }; }); // BlinkingObstacle class var BlinkingObstacle = Container.expand(function () { var self = Container.call(this); var obstacleGraphics = self.attachAsset('obstacle', { anchorX: 0.5, anchorY: 0.5 }); var blinkGraphics = self.attachAsset('obstacle_blink', { anchorX: 0.5, anchorY: 0.5 }); blinkGraphics.alpha = 0; var blinkDirection = 1; // 1 for fading in, -1 for fading out self.update = function () { if (!self.created) { self.created = LK.ticks; } if (LK.ticks - self.created > 1000) { // 300 ticks at 60FPS is 5 seconds self.destroy(); } // Update the alpha value of the blinkGraphics blinkGraphics.alpha += 0.02 * blinkDirection; // Reverse the direction of the blink when it reaches full opacity or full transparency if (blinkGraphics.alpha >= 1) { blinkDirection = -1; } else if (blinkGraphics.alpha <= 0) { blinkDirection = 1; } }; self.destroy = function () { var index = obstacles.indexOf(self); if (index !== -1) { obstacles.splice(index, 1); } Container.prototype.destroy.call(this); }; }); // Coin class var Coin = Container.expand(function () { var self = Container.call(this); var coinGraphics = self.attachAsset('coin', { anchorX: 0.5, anchorY: 0.5 }); var coinFrame2 = self.attachAsset('coin_2', { anchorX: 0.5, anchorY: 0.5 }); coinFrame2.visible = false; var coinFrame3 = self.attachAsset('coin_3', { anchorX: 0.5, anchorY: 0.5 }); coinFrame3.visible = false; var frameIndex = 0; var frameTimer = 0; self.update = function () { frameTimer += 1; if (frameTimer >= 18) { // 300ms at 60FPS frameTimer = 0; frameIndex = (frameIndex + 1) % 3; coinGraphics.visible = frameIndex === 0; coinFrame2.visible = frameIndex === 1; coinFrame3.visible = frameIndex === 2; } }; }); // Grid class var Grid = Container.expand(function () { var self = Container.call(this); self.grid = []; for (var i = 0; i < 20; i++) { self.grid[i] = []; for (var j = 0; j < 13; j++) { self.grid[i][j] = null; } } self.getEmptyCells = function () { var emptyCells = []; for (var row = 0; row < 20; row++) { for (var col = 0; col < 12; col++) { if (self.grid[row][col] === null) { emptyCells.push({ row: row, col: col }); } } } return emptyCells; }; self.addObstacle = function (obstacle, row, col) { self.grid[row][col] = obstacle; }; self.getCell = function (obstacle) { for (var row = 0; row < 20; row++) { for (var col = 0; col < 12; col++) { if (self.grid[row][col] === obstacle) { return { row: row, col: col }; } } } return null; }; }); // Obstacle class var Obstacle = Container.expand(function () { var self = Container.call(this); var obstacleGraphics = self.attachAsset('obstacle', { anchorX: 0.5, anchorY: 0.5 }); self.update = function () { if (!self.created) { self.created = LK.ticks; } if (LK.ticks - self.created > 1000) { // 300 ticks at 60FPS is 5 seconds self.destroy(); } // Obstacles can have their own behavior if needed }; self.destroy = function () { var index = obstacles.indexOf(self); if (index !== -1) { obstacles.splice(index, 1); } Container.prototype.destroy.call(this); }; }); /**** * Initialize Game ****/ var game = new LK.Game({ backgroundColor: 0x000000 //Init game with black background }); /**** * Game Code ****/ // Initialize arrays and variables var BackgroundContainer = new Container(); var MidgroundContainer = new Container(); var ForegroundContainer = new Container(); var scoreMultiplier = 1; // Initialize scoreMultiplier game.addChild(BackgroundContainer); game.addChild(MidgroundContainer); game.addChild(ForegroundContainer); // Create a background and attach it to the BackgroundContainer var background = LK.getAsset('background', { anchorX: 0.0, anchorY: 0.0, scaleX: 2048 / 1000, // Scale the background to fit the screen width scaleY: 2732 / 926.76, // Scale the background to fit the screen height x: 0, y: 0 }); BackgroundContainer.addChild(background); var ball = MidgroundContainer.addChild(new Ball()); var invulnerable = true; LK.setTimeout(function () { invulnerable = false; }, 1000); var directions = [{ x: 1024, y: 1366, speedX: 5, speedY: 5 }, // Bottom-right { x: 1024, y: 1366, speedX: -5, speedY: 5 }, // Bottom-left { x: 1024, y: 1366, speedX: -5, speedY: -5 }, // Top-left { x: 1024, y: 1366, speedX: 5, speedY: -5 } // Top-right ]; var randomDirection = directions[Math.floor(Math.random() * directions.length)]; ball.x = randomDirection.x; ball.y = randomDirection.y; ball.speedX = randomDirection.speedX; ball.speedY = randomDirection.speedY; var obstacles = []; var grid = new Grid(); var obstacles = []; var obstacle = new BlinkingObstacle(); var emptyCells = grid.getEmptyCells(); var randomCell = emptyCells[Math.floor(Math.random() * emptyCells.length)]; obstacle.x = randomCell.col * (2048 / 12) + obstacle.width / 2; obstacle.y = randomCell.row * (2732 / 20) + obstacle.height / 2; obstacles.push(obstacle); ForegroundContainer.addChild(obstacle); grid.addObstacle(obstacle, randomCell.row, randomCell.col); // Handle touch events var lastTap = 0; game.down = function (x, y, obj) { var now = Date.now(); if (now - lastTap > 200) { // 200ms delay between taps // Change ball direction on touch ball.speedY *= -1; ball.rotationDirection *= -1; // Flip the rotation direction // Add +1 to the score everytime the player taps on the screen score += 1; scoreTxt.setText(score); // Generate a Coin var coin = new Coin(); var emptyCells = grid.getEmptyCells(); var randomCell = emptyCells[Math.floor(Math.random() * emptyCells.length)]; coin.x = randomCell.col * (2048 / 12) + coin.width / 2; coin.y = randomCell.row * (2732 / 20) + coin.height / 2; obstacles.push(coin); ForegroundContainer.addChild(coin); grid.addObstacle(coin, randomCell.row, randomCell.col); // Play the Bounce sound LK.getSound('Bounce').play(); lastTap = now; } }; // Update game state // Create a score text and attach it to the GUI overlay var score = 0; var scoreTxt = new Text2('0', { size: 150, fill: "#ffffff", stroke: "#000000", strokeThickness: 15 }); scoreTxt.anchor.set(0.5, 0); LK.gui.top.addChild(scoreTxt); game.update = function () { ball.update(); for (var i = 0; i < obstacles.length; i++) { obstacles[i].update(); // Check for collision with ball if (Math.sqrt(Math.pow(ball.x - obstacles[i].x, 2) + Math.pow(ball.y - obstacles[i].y, 2)) < ball.width / 2) { // Adjust the collision detection to consider the actual size of the ball and the obstacle var ballBounds = ball.getBounds(); var obstacleBounds = obstacles[i].getBounds(); if (Math.sqrt(Math.pow(ballBounds.x - (obstacleBounds.x + obstacleBounds.width / 2), 2) + Math.pow(ballBounds.y - (obstacleBounds.y + obstacleBounds.height / 2), 2)) < ball.width / 2) { // End game on collision with an obstacle LK.effects.flashScreen(0xff0000, 1000); LK.showGameOver(); } } } };

Boomerang Bat by Octo

Images

Sounds