/**** * Classes ****/ // Bird class var Bird = Container.expand(function () { var self = Container.call(this); var birdGraphics = self.attachAsset('bird', { anchorX: 0.5, anchorY: 1.0, width: 100, height: 100 }); self.speed = 10; self.update = function () { self.x -= self.speed; if (self.x < -100) { self.destroy(); } }; }); // // // Dinosaur class var Dinosaur = Container.expand(function () { var self = Container.call(this); var dinoGraphics = self.attachAsset('dino', { anchorX: 0.5, anchorY: 1.0, width: 200, height: 200 }); self.isJumping = false; self.jumpSpeed = 0; self.gravity = 0.5; self.groundY = ground.y - ground.height; // Ground level self.update = function () { if (self.isJumping) { self.y += self.jumpSpeed; self.jumpSpeed += self.gravity; if (self.y >= self.groundY) { self.y = self.groundY; self.isJumping = false; // Check if dinosaur has jumped over an obstacle for (var i = 0; i < obstacles.length; i++) { if (obstacles[i].x < self.x && obstacles[i] instanceof Obstacle && !obstacles[i].jumpedOver) { obstacles[i].jumpedOver = true; } } } } }; self.jump = function () { if (!self.isJumping) { self.isJumping = true; self.jumpSpeed = -20; LK.getSound('jump').play(); } }; }); // Ground class var Ground = Container.expand(function () { var self = Container.call(this); var groundGraphics = self.attachAsset('road', { anchorX: 0.5, anchorY: 1.0, width: 4096 }); self.speed = 10; self.update = function () { self.x -= self.speed; if (self.x < -self.width / 2) { self.x = 0; var newGround = new Ground(); newGround.x = self.width; newGround.y = self.y; game.addChild(newGround); } }; }); // Obstacle class var Obstacle = Container.expand(function () { var self = Container.call(this); var obstacleGraphics = self.attachAsset('cactus', { anchorX: 0.5, anchorY: 1.0, width: 200, height: 200 }); self.speed = 10; self.update = function () { self.x -= self.speed; if (self.x < -100) { self.destroy(); } }; }); /**** * Initialize Game ****/ var game = new LK.Game({ backgroundColor: 0xFFFFFF // Init game with white background }); /**** * Game Code ****/ // Initialize game variables var desertBackground = game.addChild(LK.getAsset('desert', { anchorX: 0, anchorY: 0 })); var ground = game.addChild(new Ground()); ground.x = 0; ground.y = 2732; var dinosaur = game.addChild(new Dinosaur()); dinosaur.x = 200; dinosaur.y = ground.y - ground.height; var obstacles = []; var score = 0; var scoreTxt = new Text2('0', { size: 100, fill: 0x000000 }); scoreTxt.anchor.set(0.5, 0); LK.gui.top.addChild(scoreTxt); // Function to spawn obstacles function spawnObstacle() { var obstacle = new Obstacle(); obstacle.x = 2048; obstacle.y = ground.y - ground.height; obstacles.push(obstacle); game.addChild(obstacle); } function spawnBird() { var bird = new Bird(); bird.x = 2048; bird.y = Math.random() * (dinosaur.y - dinosaur.height - 200); obstacles.push(bird); game.addChild(bird); } // Handle game updates game.update = function () { dinosaur.update(); for (var i = obstacles.length - 1; i >= 0; i--) { obstacles[i].update(); if (dinosaur.intersects(obstacles[i])) { LK.effects.flashScreen(0xff0000, 1000); LK.showGameOver(); } if (obstacles[i].x < -100) { obstacles[i].destroy(); obstacles.splice(i, 1); } } if (LK.ticks % 60 == 0) { for (var i = obstacles.length - 1; i >= 0; i--) { if (obstacles[i].x < dinosaur.x && !obstacles[i].jumpedOver && obstacles[i] instanceof Obstacle) { score++; scoreTxt.setText(score); obstacles[i].jumpedOver = true; } if (obstacles[i].x < -100) { obstacles.splice(i, 1); } } } if (LK.ticks % 120 == 0) { spawnObstacle(); } if (LK.ticks % 180 == 0) { spawnBird(); } }; // Handle user input for jumping game.down = function (x, y, obj) { dinosaur.jump(); };