/**** * Plugins ****/ var tween = LK.import("@upit/tween.v1"); /**** * Classes ****/ var Enemy = Container.expand(function () { var self = Container.call(this); var enemyGraphics = self.attachAsset('enemy', { anchorX: 0.5, anchorY: 1.0 }); self.speed = gameSpeed; self.isDefeated = false; self.horizontalSpeed = 3; self.horizontalDirection = 1; self.movementRange = 150; self.startX = 0; self.defeat = function () { if (!self.isDefeated) { self.isDefeated = true; LK.getSound('defeat').play(); LK.setScore(LK.getScore() + 10); scoreTxt.setText(LK.getScore()); tween(self, { alpha: 0, scaleY: 0.3 }, { duration: 300 }); } }; self.update = function () { self.x -= self.speed; // Add horizontal movement if (self.startX === 0) { self.startX = self.x; } self.y += self.horizontalSpeed * self.horizontalDirection; if (self.y > self.startX + self.movementRange || self.y < self.startX - self.movementRange) { self.horizontalDirection *= -1; } }; return self; }); var Ground = Container.expand(function () { var self = Container.call(this); var groundGraphics = self.attachAsset('ground', { anchorX: 0, anchorY: 0 }); self.speed = gameSpeed; self.update = function () { self.x -= self.speed; if (self.x <= -self.width) { self.x += self.width * 2; } }; return self; }); var Obstacle = Container.expand(function () { var self = Container.call(this); var obstacleGraphics = self.attachAsset('obstacle', { anchorX: 0.5, anchorY: 1.0 }); self.speed = gameSpeed; self.update = function () { self.x -= self.speed; }; return self; }); var Player = Container.expand(function () { var self = Container.call(this); var playerGraphics = self.attachAsset('player', { anchorX: 0.5, anchorY: 1.0 }); self.velocityY = 0; self.isOnGround = false; self.jumpPower = -25; self.gravity = 1.2; self.groundY = 2500; self.jump = function () { if (self.isOnGround) { self.velocityY = self.jumpPower; self.isOnGround = false; LK.getSound('jump').play(); } }; self.update = function () { // Normal gravity physics self.velocityY += self.gravity; self.y += self.velocityY; if (self.y >= self.groundY) { self.y = self.groundY; self.velocityY = 0; self.isOnGround = true; } }; return self; }); var RopeObstacle = Container.expand(function () { var self = Container.call(this); var ropeGraphics = self.attachAsset('ropeObstacle', { anchorX: 0.5, anchorY: 0 }); self.speed = gameSpeed; self.isAttached = false; self.update = function () { self.x -= self.speed; }; return self; }); var StreetLamp = Container.expand(function () { var self = Container.call(this); var lampPost = self.attachAsset('streetLamp', { anchorX: 0.5, anchorY: 1 }); var lampGlow = self.attachAsset('lampLight', { anchorX: 0.5, anchorY: 0.5 }); lampGlow.y = -130; // Street lamps don't move - they stay fixed in position return self; }); /**** * Initialize Game ****/ var game = new LK.Game({ backgroundColor: 0x0f0f23 }); /**** * Game Code ****/ var gameSpeed = 20; var spawnTimer = 0; var speedIncreaseTimer = 0; var obstacles = []; var enemies = []; var groundPieces = []; var ropeObstacles = []; var backgroundTiles = []; var streetLamps = []; var mapChanged = false; // Create night cityscape background for (var col = 0; col < 15; col++) { // Create buildings of varying heights var buildingTypes = ['building1', 'building2', 'building3']; var buildingType = buildingTypes[Math.floor(Math.random() * buildingTypes.length)]; var building = game.addChild(LK.getAsset(buildingType, { anchorX: 0, anchorY: 1 })); building.x = col * 200; building.y = 2000; // Position buildings above ground backgroundTiles.push(building); // Add some windows (small yellow rectangles) to buildings for (var window = 0; window < 6; window++) { if (Math.random() > 0.7) { // 30% chance for lit windows var windowLight = game.addChild(LK.getAsset('lampLight', { anchorX: 0.5, anchorY: 0.5 })); windowLight.x = building.x + 50 + window % 3 * 50; windowLight.y = building.y - 100 - Math.floor(window / 3) * 80; windowLight.width = 15; windowLight.height = 15; backgroundTiles.push(windowLight); } } } // Create stationary street lamps every 500 pixels (25 meters) for (var lampPos = 0; lampPos < 5000; lampPos += 500) { var streetLamp = game.addChild(new StreetLamp()); streetLamp.x = lampPos; streetLamp.y = 2500; streetLamps.push(streetLamp); } // Create player var player = game.addChild(new Player()); player.x = 300; player.y = 2500; // Create permanent ground - more pieces for infinite coverage for (var i = 0; i < 15; i++) { var groundPiece = game.addChild(new Ground()); groundPiece.x = i * 300; groundPiece.y = 2520; groundPieces.push(groundPiece); } // Create score display var scoreTxt = new Text2('0', { size: 80, fill: 0xFFFFFF }); scoreTxt.anchor.set(0.5, 0); LK.gui.top.addChild(scoreTxt); scoreTxt.y = 100; // Jump control game.down = function (x, y, obj) { player.jump(); }; function spawnObstacle() { var obstacle = new Obstacle(); obstacle.x = 2200; obstacle.y = 2500; obstacle.speed = gameSpeed; obstacles.push(obstacle); game.addChild(obstacle); } function spawnEnemy() { var enemy = new Enemy(); enemy.x = 2200; enemy.y = 2500; enemy.speed = gameSpeed; enemies.push(enemy); game.addChild(enemy); } function spawnRopeObstacle() { var rope = new RopeObstacle(); rope.x = 2200; rope.y = 2200; rope.speed = gameSpeed; ropeObstacles.push(rope); game.addChild(rope); } function checkCollisions() { // Check obstacle collisions for (var i = obstacles.length - 1; i >= 0; i--) { var obstacle = obstacles[i]; if (player.intersects(obstacle)) { LK.getSound('hit').play(); player.destroy(); LK.showGameOver(); return; } } // Check rope obstacle collisions for (var k = ropeObstacles.length - 1; k >= 0; k--) { var rope = ropeObstacles[k]; if (player.intersects(rope)) { // Make player jump forward player.velocityY = -20; player.isOnGround = false; // Add forward momentum using tween tween(player, { x: player.x + 400 }, { duration: 800, easing: tween.easeOut, onFinish: function onFinish() { // After jumping forward, change map if (!mapChanged) { mapChanged = true; // Change background to different pattern for (var t = 0; t < backgroundTiles.length; t++) { var tile = backgroundTiles[t]; var newColor = Math.random() > 0.5 ? 0xFF6B6B : 0x4ECDC4; tween(tile, { tint: newColor }, { duration: 500 }); } } } }); // Remove the rope obstacle after collision rope.destroy(); ropeObstacles.splice(k, 1); } } // Check enemy collisions for (var j = enemies.length - 1; j >= 0; j--) { var enemy = enemies[j]; if (player.intersects(enemy) && !enemy.isDefeated) { if (player.velocityY > 0 && player.y < enemy.y - 30) { // Player is falling and above enemy - defeat enemy enemy.defeat(); player.velocityY = -15; // Small bounce } else { // Player hit enemy from side or below - game over LK.getSound('hit').play(); player.destroy(); LK.showGameOver(); return; } } } } function updateGameSpeed() { gameSpeed += 0.003; // Update speed for all moving objects for (var i = 0; i < obstacles.length; i++) { obstacles[i].speed = gameSpeed; } for (var j = 0; j < enemies.length; j++) { enemies[j].speed = gameSpeed; } for (var m = 0; m < ropeObstacles.length; m++) { ropeObstacles[m].speed = gameSpeed; } // Ground pieces maintain constant speed for infinite scrolling for (var k = 0; k < groundPieces.length; k++) { groundPieces[k].speed = gameSpeed; } } function cleanupObjects() { // Remove off-screen obstacles for (var i = obstacles.length - 1; i >= 0; i--) { if (obstacles[i].x < -100) { obstacles[i].destroy(); obstacles.splice(i, 1); } } // Remove off-screen enemies for (var j = enemies.length - 1; j >= 0; j--) { if (enemies[j].x < -100) { enemies[j].destroy(); enemies.splice(j, 1); } } // Remove off-screen rope obstacles for (var k = ropeObstacles.length - 1; k >= 0; k--) { if (ropeObstacles[k].x < -100) { ropeObstacles[k].destroy(); ropeObstacles.splice(k, 1); } } } game.update = function () { // Spawn objects spawnTimer++; if (spawnTimer >= 90) { var rand = Math.random(); if (rand < 0.4) { spawnObstacle(); } else if (rand < 0.7) { spawnEnemy(); } else { spawnRopeObstacle(); } spawnTimer = 0; } // Increase game speed over time speedIncreaseTimer++; if (speedIncreaseTimer >= 300) { updateGameSpeed(); speedIncreaseTimer = 0; } // Update score based on survival time if (LK.ticks % 30 === 0) { LK.setScore(LK.getScore() + 1); scoreTxt.setText(LK.getScore()); } // Check collisions checkCollisions(); // Clean up off-screen objects cleanupObjects(); };