/**** * Classes ****/ // Asteroid class var Asteroid = Container.expand(function () { var self = Container.call(this); var asteroidGraphics = self.attachAsset('asteroid', { anchorX: 0.5, anchorY: 0.5 }); self.speedX = Math.random() * 2 - 1; // Random horizontal speed self.speedY = Math.random() * 3 + 1; // Random vertical speed self._update_migrated = function () { self.x += self.speedX; self.y += self.speedY; // Destroy asteroid if it goes off-screen if (self.y > 2732 || self.x < 0 || self.x > 2048) { self.destroy(); } }; }); var CrashedLander = Container.expand(function () { var self = Container.call(this); var crashedLanderGraphics = self.attachAsset('crashedlander', { anchorX: 0.5, anchorY: 0.5 }); self.destroyAfterOneSecond = function () { LK.setTimeout(function () { self.destroy(); }, 1000); }; }); var DottedLine = Container.expand(function () { var self = Container.call(this); self.createDottedLine = function (startX, startY, endX, endY, color, dotSize, gapSize) { var distance = Math.sqrt(Math.pow(endX - startX, 2) + Math.pow(endY - startY, 2)); var dotCount = Math.floor(distance / (dotSize + gapSize * 2)); for (var i = 0; i < dotCount; i++) { var dot = self.addChild(LK.getAsset('dot', { anchorX: 0.5, anchorY: 0.5 })); dot.alpha = 0.5; dot.x = startX + (endX - startX) * (i / dotCount); dot.y = startY + (endY - startY) * (i / dotCount); dot.width = dotSize; dot.height = dotSize; dot.tint = color; } }; }); // Down Thruster class var DownThruster = Container.expand(function () { var self = Container.call(this); var downThrusterGraphics = self.attachAsset('thruster', { anchorX: 0.5, anchorY: 0.5 }); }); var LandedLander = Container.expand(function () { var self = Container.call(this); var landedLanderGraphics = self.attachAsset('landedlander', { anchorX: 0.5, anchorY: 0.5 }); self.destroyAfterOneSecond = function () { LK.setTimeout(function () { self.destroy(); }, 1000); }; }); // Lander class var Lander = Container.expand(function () { var self = Container.call(this); var landerGraphics = self.attachAsset('lander', { anchorX: 0.5, anchorY: 0.5 }); self.speedX = 0; self.speedY = 0; self.fuel = 500; self.isThrusting = false; self.isLanding = false; self._update_migrated = function () { if (!self.isLanding) { self.x += self.speedX; self.y += self.speedY; if (self.isThrusting && self.fuel > 0) { if (self.thrustDirection === 'left') { self.speedX += 0.1; // Right thruster effect } else if (self.thrustDirection === 'right') { self.speedX -= 0.1; // Left thruster effect } else { self.speedY -= 0.2; // Down thruster effect } self.fuel -= 1; fuelTxt.setText(Math.round(self.fuel / 500 * 100) + '% Fuel'); // Show fuel as a percentage } else { self.speedY += 0.05; // Gravity effect } ySpeedTxt.setText('Y Speed: ' + self.speedY.toFixed(2)); // Update Y Speed display } // Update thruster position and visibility if (self.thrustDirection === 'left') { leftThruster.x = self.x - self.width / 2; leftThruster.y = self.y; leftThruster.visible = self.isThrusting; } else { leftThruster.visible = false; } if (self.thrustDirection === 'right') { rightThruster.x = self.x + self.width / 2; rightThruster.y = self.y; rightThruster.visible = self.isThrusting; } else { rightThruster.visible = false; } if (self.thrustDirection === 'down') { downThruster.x = self.x; downThruster.y = self.y + self.height / 2 + 10; downThruster.visible = self.isThrusting; } else { downThruster.visible = false; } downThruster.x = self.x; downThruster.y = self.y + self.height / 2 + 40; }; self.land = function () { self.isLanding = true; var landedLander = game.addChild(new LandedLander()); landedLander.x = self.x; landedLander.y = self.y; landedLander.destroyAfterOneSecond(); levelManager.incrementLevel(); LK.getSound('hooray').play(); }; self.refuel = function () { self.fuel = 500; fuelTxt.setText('100% Fuel'); // Show fuel as a percentage when refueled }; }); // Left Thruster class var LeftThruster = Container.expand(function () { var self = Container.call(this); var leftThrusterGraphics = self.attachAsset('leftThruster', { anchorX: 0.5, anchorY: 0.5 }); }); // Level class var Level = Container.expand(function () { var self = Container.call(this); self.currentLevel = 1; var levelTxt = new Text2('Level: ' + self.currentLevel, { size: 100, // Double the size fill: "#ffffff" }); levelTxt.anchor.set(0.5, 0); LK.gui.top.addChild(levelTxt); self.incrementLevel = function () { self.currentLevel += 1; levelTxt.setText('Level: ' + self.currentLevel); platform.startMoving(self.currentLevel); leftDottedLine.visible = false; rightDottedLine.visible = false; leftMessage.visible = false; centerMessage.visible = false; rightMessage.visible = false; var successMessages = ['Smooth landing Captain!', 'Perfect touchdown!', 'Another successful landing!', 'You nailed it!', 'Flawless descent!']; var randomIndex = Math.floor(Math.random() * successMessages.length); var successMessage = new Text2(successMessages[randomIndex], { size: 100, fill: '#ffffff', align: 'center' }); successMessage.anchor.set(0.5, 0.5); successMessage.x = 1024; successMessage.y = 1066; game.addChild(successMessage); LK.setTimeout(function () { successMessage.destroy(); }, 1000); isPaused = true; pauseTimer = 60; }; }); // Platform class var MovingPlatform = Container.expand(function () { var self = Container.call(this); var platformGraphics = self.attachAsset('platform', { anchorX: 0.5, anchorY: 0.5 }); self.speedX = 0; self.startMoving = function (level) { LK.setTimeout(function () { if (level >= 2) { self.x = Math.random() * (2048 - self.width) + self.width / 2; // Random horizontal start position ensuring platform is fully visible } if (level >= 5) { self.speedX = 2.8 + (level - 5) * 0.2; // Increase sideways speed by 0.2 for each level above 5 } }, 1000); // Add a 1 second pause before repositioning the platform }; self._update_migrated = function () { self.x += self.speedX; if (self.x > 1524 || self.x < 524) { self.speedX *= -1; // Change direction when hitting screen bounds } }; self.checkLanding = function (lander) { if (lander.intersects(self)) { if (lander.speedY < 2 && lander.speedX >= -1 && lander.speedX <= 1 && lander.x > self.x - self.width / 2 && lander.x < self.x + self.width / 2) { return true; } else { isGameOver = true; var crashedLander = game.addChild(new CrashedLander()); crashedLander.x = lander.x; crashedLander.y = lander.y; crashedLander.destroyAfterOneSecond(); leftMessage.visible = false; centerMessage.visible = false; rightMessage.visible = false; leftDottedLine.visible = false; rightDottedLine.visible = false; LK.getSound('crash').play(); // Play crash sound if (levelManager.currentLevel <= 2) { var crashMessageLine1 = new Text2('Slow down Captain!', { size: 100, fill: '#ffffff', align: 'center' }); crashMessageLine1.anchor.set(0.5, 0.5); crashMessageLine1.x = 1024; crashMessageLine1.y = 1150; game.addChild(crashMessageLine1); var crashMessageLine2 = new Text2('-Keep Y speed below 2\n-And X between -1 and 1', { size: 70, fill: '#ffffff', align: 'center' }); crashMessageLine2.anchor.set(0.5, 0.5); crashMessageLine2.x = 1024; crashMessageLine2.y = 1316; game.addChild(crashMessageLine2); LK.setTimeout(function () { crashMessageLine1.destroy(); crashMessageLine2.destroy(); }, 3000); } if (levelManager.currentLevel <= 2) { LK.setTimeout(function () { LK.showGameOver(); }, 3000); } else { LK.showGameOver(); } return false; } } return false; }; }); // Right Thruster class var RightThruster = Container.expand(function () { var self = Container.call(this); var rightThrusterGraphics = self.attachAsset('rightThruster', { anchorX: 0.5, anchorY: 0.5 }); }); /**** * Initialize Game ****/ // Stars class // Center vertically // Initialize lander var game = new LK.Game({ backgroundColor: 0x000000 // Init game with black background }); /**** * Game Code ****/ // Stars class // Initialize lander function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); } function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) { descriptor.writable = true; } Object.defineProperty(target, _toPropertyKey(descriptor.key), descriptor); } } function _createClass(Constructor, protoProps, staticProps) { if (protoProps) { _defineProperties(Constructor.prototype, protoProps); } if (staticProps) { _defineProperties(Constructor, staticProps); } Object.defineProperty(Constructor, "prototype", { writable: false }); return Constructor; } function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == _typeof(i) ? i : String(i); } function _toPrimitive(t, r) { if ("object" != _typeof(t) || !t) { return t; } var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != _typeof(i)) { return i; } throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); } function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); Object.defineProperty(subClass, "prototype", { writable: false }); if (superClass) { _setPrototypeOf(subClass, superClass); } } function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); } function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; } function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } else if (call !== void 0) { throw new TypeError("Derived constructors may only return object or undefined"); } return _assertThisInitialized(self); } function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; } function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) { return false; } if (Reflect.construct.sham) { return false; } if (typeof Proxy === "function") { return true; } try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } } function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf.bind() : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); } var Stars = /*#__PURE__*/function (_Container) { _inherits(Stars, _Container); var _super = _createSuper(Stars); function Stars() { var _thi; _classCallCheck(this, Stars); _this = _super.call(this); _this.createStars(); return _this; } _createClass(Stars, [{ key: "createStars", value: function createStars() { for (var i = 0; i < 100; i++) { var star = this.addChild(LK.getAsset('star', { anchorX: 0.5, anchorY: 0.5 })); star.x = Math.random() * 2048; star.y = Math.random() * 2732; star.alpha = Math.random() * 0.5 + 0.5; // Random transparency for twinkling effect var randomScale = Math.random() * 0.3 + 0.2; // Random scale for different sizes star.scale.x = randomScale; star.scale.y = randomScale; } } }]); return Stars; }(Container); var background = game.addChild(LK.getAsset('background', {})); background.x = 1024; // Center horizontally background.y = 1366; // Add stars behind the main background var stars = game.addChild(new Stars()); // Add second background var secondBackground = game.addChildAt(LK.getAsset('secondBackground', { anchorX: 0.5, anchorY: 0.5 }), 0); secondBackground.width = 2048; secondBackground.height = 2732; secondBackground.x = 2048 / 2; // Center horizontally secondBackground.y = 2732 / 2; // Center vertically var scoreTxt = new Text2('0', { size: 50, fill: "#ffffff" }); scoreTxt.anchor.set(0.5, 0); //LK.gui.top.addChild(scoreTxt); // Initialize thrusters var downThruster = game.addChild(new DownThruster()); // Position down thruster at the bottom center of the lander var leftThruster = game.addChild(new LeftThruster()); leftThruster.visible = false; var rightThruster = game.addChild(new RightThruster()); rightThruster.visible = false; // Initialize level manager var levelManager = game.addChild(new Level()); var leftMessage = new Text2('Tap here for\nLeft Thruster', { size: 70, fill: '#cccccc', alpha: 0.5, align: 'center' }); leftMessage.anchor.set(0.5, 0.5); leftMessage.x = 2048 / 6; leftMessage.y = 1066; game.addChild(leftMessage); var centerMessage = new Text2('Tap here for\nCenter Thruster', { size: 70, fill: '#cccccc', alpha: 0.5, align: 'center' }); centerMessage.anchor.set(0.5, 0.5); centerMessage.x = 2048 / 2; centerMessage.y = 1066; game.addChild(centerMessage); var rightMessage = new Text2('Tap here for\nRight Thruster', { size: 70, alpha: 0.5, fill: '#cccccc', align: 'center' }); rightMessage.anchor.set(0.5, 0.5); rightMessage.x = 2048 * 5 / 6; rightMessage.y = 1066; game.addChild(rightMessage); // Create and add two vertical dotted lines var leftDottedLine = game.addChild(new DottedLine()); leftDottedLine.createDottedLine(2048 / 3, 0, 2048 / 3, 2732, 0xffffff, 5, 10); var rightDottedLine = game.addChild(new DottedLine()); rightDottedLine.createDottedLine(2048 * 2 / 3, 0, 2048 * 2 / 3, 2732, 0xffffff, 5, 10); // Initialize moving platform var platform = game.addChild(new MovingPlatform()); // Add the lander after the messages to ensure it appears in front of them var lander = game.addChild(new Lander()); lander.x = 1024; // Start in the middle of the screen horizontally lander.y = 250; // Start 250 pixels down from the top platform.x = 1024; // Center horizontally platform.y = 2632; // Place at the bottom // Game variables var isGameOver = false; var isPaused = false; var pauseTimer = 0; var score = 0; var asteroids = []; // Fuel display text var fuelTxt = new Text2('100% Fuel', { size: 50, fill: "#ffffff" }); fuelTxt.anchor.set(1, 0); LK.gui.topRight.addChild(fuelTxt); // Y Speed display text var ySpeedTxt = new Text2('Y Speed: ' + lander.speedY.toFixed(2), { size: 50, fill: "#ffffff" }); ySpeedTxt.anchor.set(1, 0); ySpeedTxt.y = 50; LK.gui.topRight.addChild(ySpeedTxt); // X Speed display text var xSpeedTxt = new Text2('X Speed: ' + lander.speedX.toFixed(2), { size: 50, fill: "#ffffff" }); xSpeedTxt.anchor.set(1, 0); xSpeedTxt.y = 100; LK.gui.topRight.addChild(xSpeedTxt); // Gravity display text var gravityTxt = new Text2('Gravity: 1.62', { size: 50, fill: "#ffffff" }); gravityTxt.anchor.set(1, 0); gravityTxt.y = 150; LK.gui.topRight.addChild(gravityTxt); // Event listeners game.on('down', function (x, y, obj) { var touchPos = game.toLocal(obj.global); if (touchPos.x < 2048 / 3) { lander.thrustDirection = 'left'; } else if (touchPos.x > 2048 * 2 / 3) { lander.thrustDirection = 'right'; } else { lander.thrustDirection = 'down'; } lander.isThrusting = true; LK.getSound('thruster').play(); }); game.on('up', function (x, y, obj) { lander.isThrusting = false; lander.thrustDirection = null; }); // Game tick update LK.on('tick', function () { if (isPaused) { lander.visible = false; pauseTimer--; if (pauseTimer <= 0) { isPaused = false; lander.visible = true; } return; } if (!isGameOver) { // Update all asteroids asteroids = game.children.filter(function (child) { return child instanceof Asteroid; }); lander._update_migrated(); platform._update_migrated(); // Update platform position // Update X Speed display xSpeedTxt.setText('X Speed: ' + lander.speedX.toFixed(2)); // Check for landing if (platform.checkLanding(lander)) { lander.land(); score += 1; scoreTxt.setText(score.toString()); lander.refuel(); lander.isLanding = true; LK.setTimeout(function () { lander.x = 1024; lander.y = 250; lander.speedX = 0; lander.speedY = 0; lander.isLanding = false; }, 2 * 1000 / 60); // Wait for 2 ticks (1000ms/60fps * 2) } // Check for collision with asteroids and game over conditions for (var i = 0; i < asteroids.length; i++) { if (lander.intersects(asteroids[i])) { isGameOver = true; LK.showGameOver(); break; } } // Check if lander is off-screen for game over if (lander.y > 2732) { isGameOver = true; LK.showGameOver(); } // Asteroid spawning if (levelManager.currentLevel >= 3 && LK.ticks % (240 - Math.floor((levelManager.currentLevel - 1) / 2) * 20) == 0) { // Spawn an asteroid less frequently as levels progress // Adjusted the rate of increase for asteroid spawn frequency var newAsteroid = new Asteroid(); var safeZoneRadius = 400; var landerSpawnX = 1024; var minDistanceFromLander; do { newAsteroid.x = Math.random() * 2048; // Random horizontal start position minDistanceFromLander = Math.abs(newAsteroid.x - landerSpawnX); } while (minDistanceFromLander <= safeZoneRadius); newAsteroid.y = -50; // Start just above the screen game.addChild(newAsteroid); } // Update all asteroids asteroids = game.children.filter(function (child) { return child instanceof Asteroid; }); for (var i = 0; i < asteroids.length; i++) { asteroids[i]._update_migrated(); } // Check for game over conditions if (lander.y > 3000 || lander.x < -300 || lander.x > 2348 || lander.y < -300) { isGameOver = true; leftDottedLine.visible = false; rightDottedLine.visible = false; leftMessage.visible = false; centerMessage.visible = false; rightMessage.visible = false; var lostMessage = new Text2('You got Lost in Space! Try again!', { size: 100, fill: '#ffffff', align: 'center' }); lostMessage.anchor.set(0.5, 0.5); lostMessage.x = 1024; lostMessage.y = 1366; game.addChild(lostMessage); LK.setTimeout(function () { lostMessage.destroy(); LK.showGameOver(); }, 2000); } } });

Lander 2000 by JPP

Images

Sounds