/**** * Plugins ****/ var tween = LK.import("@upit/tween.v1"); var storage = LK.import("@upit/storage.v1"); /**** * Classes ****/ // Cat player class var Cat = Container.expand(function () { var self = Container.call(this); var catSprite = self.attachAsset('cat', { anchorX: 0.5, anchorY: 0.5 }); self.lane = 1; // Start in center lane self.y = 2200; // Near bottom of screen self.x = laneX[self.lane]; self.width = catSprite.width; self.height = catSprite.height; self.magnetActive = false; self.speedBoostActive = false; self.doubleActive = false; self.powerupTimer = 0; self.moveToLane = function (targetLane) { if (targetLane < 0 || targetLane > 2) return; self.lane = targetLane; // Animate to new lane tween(self, { x: laneX[self.lane] }, { duration: 120, easing: tween.cubicOut }); }; self.activatePowerup = function (type, duration) { if (type === 'magnet') { self.magnetActive = true; } else if (type === 'speed') { self.speedBoostActive = true; } else if (type === 'double') { self.doubleActive = true; } self.powerupTimer = LK.ticks + Math.floor(duration * 60 / 1000); // duration in ms }; self.update = function () { // Powerup timer if (self.powerupTimer && LK.ticks > self.powerupTimer) { self.magnetActive = false; self.speedBoostActive = false; self.doubleActive = false; self.powerupTimer = 0; } }; return self; }); // Fish collectible var Fish = Container.expand(function () { var self = Container.call(this); var fishSprite = self.attachAsset('fish', { anchorX: 0.5, anchorY: 0.5 }); self.lane = 1; self.x = laneX[self.lane]; self.y = -100; self.width = fishSprite.width; self.height = fishSprite.height; self.collected = false; self.update = function () { // Movement handled in game.update }; return self; }); // Obstacle base class var Obstacle = Container.expand(function () { var self = Container.call(this); self.lane = 1; self.x = laneX[self.lane]; self.y = -200; self.width = 100; self.height = 100; self.type = 'obstacle'; self.update = function () {}; return self; }); // Trashcan obstacle var Trashcan = Obstacle.expand(function () { var self = Obstacle.call(this); var trashSprite = self.attachAsset('trashcan', { anchorX: 0.5, anchorY: 0.5 }); self.width = trashSprite.width; self.height = trashSprite.height; self.type = 'trashcan'; return self; }); // Puddle obstacle var Puddle = Obstacle.expand(function () { var self = Obstacle.call(this); var puddleSprite = self.attachAsset('puddle', { anchorX: 0.5, anchorY: 0.5 }); self.width = puddleSprite.width; self.height = puddleSprite.height; self.type = 'puddle'; return self; }); // Dog obstacle var Dog = Obstacle.expand(function () { var self = Obstacle.call(this); var dogSprite = self.attachAsset('dog', { anchorX: 0.5, anchorY: 0.5 }); self.width = dogSprite.width; self.height = dogSprite.height; self.type = 'dog'; return self; }); // Powerup base class var Powerup = Container.expand(function () { var self = Container.call(this); self.lane = 1; self.x = laneX[self.lane]; self.y = -100; self.width = 80; self.height = 80; self.kind = ''; self.update = function () {}; return self; }); // Speed boost powerup var Speed = Powerup.expand(function () { var self = Powerup.call(this); var spdSprite = self.attachAsset('speed', { anchorX: 0.5, anchorY: 0.5 }); self.width = spdSprite.width; self.height = spdSprite.height; self.kind = 'speed'; return self; }); // Magnet powerup var Magnet = Powerup.expand(function () { var self = Powerup.call(this); var magSprite = self.attachAsset('magnet', { anchorX: 0.5, anchorY: 0.5 }); self.width = magSprite.width; self.height = magSprite.height; self.kind = 'magnet'; return self; }); // Double points powerup var Double = Powerup.expand(function () { var self = Powerup.call(this); var dblSprite = self.attachAsset('double', { anchorX: 0.5, anchorY: 0.5 }); self.width = dblSprite.width; self.height = dblSprite.height; self.kind = 'double'; return self; }); /**** * Initialize Game ****/ var game = new LK.Game({ backgroundColor: 0x87ceeb // Light blue sky }); /**** * Game Code ****/ // Game state variables // Cat character (main player) // Fish collectible // Trash can obstacle // Water puddle obstacle // Dog obstacle // Magnet powerup // Speed boost powerup // Double points powerup // Lane positions (3 lanes: left, center, right) var laneX = [512, 1024, 1536]; var cat; var obstacles = []; var fishes = []; var powerups = []; var score = 0; var speed = 18; // Initial speed (pixels per frame) var gameTick = 0; var lastSwipeX = null; var dragStartX = null; var dragStartY = null; var dragActive = false; var swipeThreshold = 80; // Minimum px for swipe var lastLane = 1; var lastScore = 0; var powerupDuration = 4000; // ms var spawnTimer = 0; var powerupSpawnTimer = 0; var fishSpawnTimer = 0; var gameOver = false; // Score text var scoreTxt = new Text2('0', { size: 120, fill: "#fff" }); scoreTxt.anchor.set(0.5, 0); LK.gui.top.addChild(scoreTxt); // Powerup indicator var powerupTxt = new Text2('', { size: 70, fill: "#fff" }); powerupTxt.anchor.set(0.5, 0); LK.gui.top.addChild(powerupTxt); powerupTxt.y = 130; // Daily reward (placeholder, not implemented in MVP) var dailyRewardTxt = new Text2('', { size: 60, fill: "#fff" }); dailyRewardTxt.anchor.set(0.5, 0); LK.gui.bottom.addChild(dailyRewardTxt); dailyRewardTxt.visible = false; // Initialize cat cat = new Cat(); cat.x = laneX[1]; cat.y = 2200; game.addChild(cat); // Helper: spawn obstacle function spawnObstacle() { var lane = Math.floor(Math.random() * 3); var typeRand = Math.random(); var obs; if (typeRand < 0.5) { obs = new Trashcan(); } else if (typeRand < 0.8) { obs = new Puddle(); } else { obs = new Dog(); } obs.lane = lane; obs.x = laneX[lane]; obs.y = -200; obstacles.push(obs); game.addChild(obs); } // Helper: spawn fish function spawnFish() { var lane = Math.floor(Math.random() * 3); var fish = new Fish(); fish.lane = lane; fish.x = laneX[lane]; fish.y = -100; fishes.push(fish); game.addChild(fish); } // Helper: spawn powerup function spawnPowerup() { var lane = Math.floor(Math.random() * 3); var kindRand = Math.random(); var pwr; if (kindRand < 0.34) { pwr = new Magnet(); } else if (kindRand < 0.67) { pwr = new Speed(); } else { pwr = new Double(); } pwr.lane = lane; pwr.x = laneX[lane]; pwr.y = -100; powerups.push(pwr); game.addChild(pwr); } // Helper: reset game state function resetGame() { // Remove all obstacles, fishes, powerups for (var i = 0; i < obstacles.length; i++) obstacles[i].destroy(); for (var i = 0; i < fishes.length; i++) fishes[i].destroy(); for (var i = 0; i < powerups.length; i++) powerups[i].destroy(); obstacles = []; fishes = []; powerups = []; score = 0; speed = 18; gameTick = 0; cat.lane = 1; cat.x = laneX[1]; cat.y = 2200; cat.magnetActive = false; cat.speedBoostActive = false; cat.doubleActive = false; cat.powerupTimer = 0; scoreTxt.setText('0'); powerupTxt.setText(''); gameOver = false; } // Touch/move/swipe controls game.down = function (x, y, obj) { dragStartX = x; dragStartY = y; dragActive = true; lastSwipeX = x; }; game.move = function (x, y, obj) { if (!dragActive) return; var dx = x - dragStartX; if (Math.abs(dx) > swipeThreshold) { if (dx > 0 && cat.lane < 2) { cat.moveToLane(cat.lane + 1); dragActive = false; } else if (dx < 0 && cat.lane > 0) { cat.moveToLane(cat.lane - 1); dragActive = false; } } }; game.up = function (x, y, obj) { dragActive = false; }; // Main game update loop // Random meow timer var meowTimer = 0; game.update = function () { if (gameOver) return; gameTick++; // Increase speed over time if (gameTick % 180 === 0 && speed < 40) { speed += 1; } // If speed boost active var moveSpeed = cat.speedBoostActive ? speed * 1.7 : speed; // Spawn obstacles spawnTimer--; if (spawnTimer <= 0) { spawnObstacle(); spawnTimer = 60 + Math.floor(Math.random() * 40); // 1-1.5s } // Spawn fish fishSpawnTimer--; if (fishSpawnTimer <= 0) { spawnFish(); fishSpawnTimer = 40 + Math.floor(Math.random() * 40); // 0.7-1.3s } // Spawn powerup powerupSpawnTimer--; if (powerupSpawnTimer <= 0) { spawnPowerup(); powerupSpawnTimer = 400 + Math.floor(Math.random() * 200); // 7-10s } // Update cat cat.update(); // Move obstacles for (var i = obstacles.length - 1; i >= 0; i--) { var obs = obstacles[i]; obs.y += moveSpeed; // Remove if off screen if (obs.y > 2900) { obs.destroy(); obstacles.splice(i, 1); continue; } // Collision with cat if (obs.lane === cat.lane && Math.abs(obs.y - cat.y) < (obs.height + cat.height) / 2 - 20) { // Play trash impact sound if trashcan, otherwise cat meow if (obs.type === 'trashcan') { LK.getSound('TrashImpactSound').play(); } else { LK.getSound('cat').play(); } // Game over LK.effects.flashScreen(0xff0000, 800); gameOver = true; LK.showGameOver(); return; } } // Move fishes for (var i = fishes.length - 1; i >= 0; i--) { var fish = fishes[i]; fish.y += moveSpeed; // Magnet effect if (cat.magnetActive && Math.abs(fish.y - cat.y) < 500 && Math.abs(fish.x - cat.x) < 400) { // Move fish toward cat var dx = cat.x - fish.x; var dy = cat.y - fish.y; var dist = Math.sqrt(dx * dx + dy * dy); if (dist > 1) { fish.x += dx / dist * 22; fish.y += dy / dist * 22; } } // Remove if off screen if (fish.y > 2900) { fish.destroy(); fishes.splice(i, 1); continue; } // Collect fish if (!fish.collected && fish.lane === cat.lane && Math.abs(fish.y - cat.y) < (fish.height + cat.height) / 2 - 20) { fish.collected = true; var points = cat.doubleActive ? 2 : 1; score += points; LK.setScore(score); scoreTxt.setText(score + ''); // Play cat meow sound only when cat eats 5 fish if (typeof fishEatCount === "undefined") { fishEatCount = 0; } fishEatCount += 1; if (fishEatCount % 5 === 0) { LK.getSound('cat').play(); } // Animate fish tween(fish, { alpha: 0, y: cat.y - 80 }, { duration: 200, onFinish: function onFinish() { fish.destroy(); } }); fishes.splice(i, 1); continue; } } // Move powerups for (var i = powerups.length - 1; i >= 0; i--) { var pwr = powerups[i]; pwr.y += moveSpeed; // Remove if off screen if (pwr.y > 2900) { pwr.destroy(); powerups.splice(i, 1); continue; } // Collect powerup if (pwr.lane === cat.lane && Math.abs(pwr.y - cat.y) < (pwr.height + cat.height) / 2 - 20) { // Activate powerup cat.activatePowerup(pwr.kind, powerupDuration); // Play speed sound only when picking up speed powerup if (pwr.kind === 'speed') { LK.getSound('speed').play(); } // Show indicator if (pwr.kind === 'magnet') { powerupTxt.setText('Magnet!'); } else if (pwr.kind === 'speed') { powerupTxt.setText('Speed!'); } else if (pwr.kind === 'double') { powerupTxt.setText('Double Points!'); } // Animate tween(pwr, { alpha: 0, y: cat.y - 80 }, { duration: 200, onFinish: function onFinish() { pwr.destroy(); } }); powerups.splice(i, 1); continue; } } // Powerup indicator clear if (!cat.magnetActive && !cat.speedBoostActive && !cat.doubleActive) { powerupTxt.setText(''); } }; // Reset game state on game over LK.on('gameover', function () { resetGame(); }); // Reset game state on you win (not used in endless runner, but for completeness) LK.on('youwin', function () { resetGame(); });