/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");

/**** 
* Classes
****/ 
// Patty class
var Patty = Container.expand(function () {
	var self = Container.call(this);
	// States: 'raw', 'perfect', 'burnt', 'served'
	self.state = 'raw';
	self.cookTime = 0; // ms since placed on stove
	self.cooked = false; // true if served
	self.burnt = false;
	self.served = false;
	// Attach raw patty asset
	self.pattyAsset = self.attachAsset('patty_raw', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// For animation
	self.yOffset = 0;
	// Called every tick
	self.update = function () {
		if (self.served || self.burnt) return;
		self.cookTime += 1000 / 60; // ~16.67ms per tick
		// Change state at 2s (perfect), 5s (burnt)
		if (self.cookTime >= 2000 && self.state === 'raw') {
			self.state = 'perfect';
			self.pattyAsset.destroy();
			self.pattyAsset = self.attachAsset('patty_perfect', {
				anchorX: 0.5,
				anchorY: 0.5
			});
			// Play ding sound
			LK.getSound('ding').play();
		}
		if (self.cookTime >= 5000 && !self.burnt && !self.served) {
			self.state = 'burnt';
			self.burnt = true;
			self.pattyAsset.destroy();
			self.pattyAsset = self.attachAsset('patty_burnt', {
				anchorX: 0.5,
				anchorY: 0.5
			});
			// Play burn sound
			LK.getSound('burn').play();
			// Animate fade out and destroy after 0.7s
			tween(self, {
				alpha: 0
			}, {
				duration: 700,
				onFinish: function onFinish() {
					self.destroy();
				}
			});
		}
	};
	// Called when tapped
	self.down = function (x, y, obj) {
		if (self.served || self.burnt) return;
		if (self.state === 'perfect') {
			self.serve();
		}
	};
	// Serve patty to bun
	self.serve = function () {
		self.served = true;
		// Move patty to bun position (animated)
		var targetX = bun.x;
		var targetY = bun.y - 30;
		tween(self, {
			x: targetX,
			y: targetY
		}, {
			duration: 350,
			easing: tween.cubicOut,
			onFinish: function onFinish() {
				// Add score
				LK.setScore(LK.getScore() + 1);
				scoreTxt.setText(LK.getScore());
				// Animate patty into bun (scale down)
				tween(self, {
					scaleX: 0.7,
					scaleY: 0.7,
					alpha: 0.0
				}, {
					duration: 400,
					onFinish: function onFinish() {
						self.destroy();
					}
				});
			}
		});
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0xf5f2e6
});

/**** 
* Game Code
****/ 
// Centered positions
// Patty states: raw, perfect, burnt
// Bun
// Stove
// Plate
// Sizzle sound
var centerX = 2048 / 2;
var stoveY = 1100;
var bunY = 1700;
var plateY = 1850;
// Add stove
var stove = LK.getAsset('stove', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: centerX,
	y: stoveY
});
game.addChild(stove);
// Add plate
var plate = LK.getAsset('plate', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: centerX,
	y: plateY
});
game.addChild(plate);
// Add bun
var bun = LK.getAsset('bun', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: centerX,
	y: bunY
});
game.addChild(bun);
// Score text
var scoreTxt = new Text2('0', {
	size: 140,
	fill: 0x7C4A00
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Patty management
var patties = [];
var pattySpawned = false;
var pattySpawnDelay = 600; // ms between patties
var lastPattyTime = -pattySpawnDelay;
// Helper: spawn a new patty on the stove
function spawnPatty() {
	var patty = new Patty();
	patty.x = centerX;
	patty.y = stoveY - 40;
	patties.push(patty);
	game.addChild(patty);
	pattySpawned = true;
	lastPattyTime = Date.now();
	// Sizzle sound
	LK.getSound('sizzle').play();
}
// Remove destroyed patties from array
function cleanPatties() {
	for (var i = patties.length - 1; i >= 0; i--) {
		if (patties[i].destroyed || patties[i].burnt || patties[i].served) {
			patties.splice(i, 1);
		}
	}
}
// Game tap handler: pass to patty if tapped
game.down = function (x, y, obj) {
	// Find topmost patty under tap
	for (var i = patties.length - 1; i >= 0; i--) {
		var p = patties[i];
		if (p.served || p.burnt) continue;
		// Hit test: simple bounding box
		var px = p.x,
			py = p.y;
		var w = p.pattyAsset.width,
			h = p.pattyAsset.height;
		if (x >= px - w / 2 && x <= px + w / 2 && y >= py - h / 2 && y <= py + h / 2) {
			p.down(x, y, obj);
			break;
		}
	}
};
// Main update loop
game.update = function () {
	// Spawn patty if none present and enough time passed
	if (patties.length === 0 && Date.now() - lastPattyTime > pattySpawnDelay) {
		spawnPatty();
	}
	// Update patties
	for (var i = 0; i < patties.length; i++) {
		if (patties[i].update) patties[i].update();
	}
	// Remove destroyed patties
	cleanPatties();
};
// Show "You Win" if player reaches 20 perfect patties
// (Optional: can be adjusted for difficulty)
game.checkWin = function () {
	if (LK.getScore() >= 20) {
		LK.showYouWin();
	}
};
// Add win check to score update
var oldSetScore = LK.setScore;
LK.setScore = function (val) {
	oldSetScore(val);
	game.checkWin();
};

===================================================================
--- original.js
+++ change.js
@@ -107,14 +107,14 @@
 
 /**** 
 * Game Code
 ****/ 
-// Sizzle sound
-// Plate
-// Stove
-// Bun
-// Patty states: raw, perfect, burnt
 // Centered positions
+// Patty states: raw, perfect, burnt
+// Bun
+// Stove
+// Plate
+// Sizzle sound
 var centerX = 2048 / 2;
 var stoveY = 1100;
 var bunY = 1700;
 var plateY = 1850;
@@ -161,9 +161,9 @@
 	patty.y = stoveY - 40;
 	patties.push(patty);
 	game.addChild(patty);
 	pattySpawned = true;
-	lastPattyTime = LK.now();
+	lastPattyTime = Date.now();
 	// Sizzle sound
 	LK.getSound('sizzle').play();
 }
 // Remove destroyed patties from array
@@ -193,9 +193,9 @@
 };
 // Main update loop
 game.update = function () {
 	// Spawn patty if none present and enough time passed
-	if (patties.length === 0 && LK.now() - lastPattyTime > pattySpawnDelay) {
+	if (patties.length === 0 && Date.now() - lastPattyTime > pattySpawnDelay) {
 		spawnPatty();
 	}
 	// Update patties
 	for (var i = 0; i < patties.length; i++) {