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

/**** 
* Classes
****/ 
// Obstacle class: moves in a straight or curved unpredictable path, fast
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	// Randomly pick a shape and color
	var type = Math.floor(Math.random() * 4);
	var assetId = 'obstacleBox';
	if (type === 1) assetId = 'obstacleEllipse';
	if (type === 2) assetId = 'obstacleBox2';
	if (type === 3) assetId = 'obstacleEllipse2';
	var obstacleGraphics = self.attachAsset(assetId, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Randomize size a bit for more chaos
	var scale = 0.8 + Math.random() * 0.7;
	obstacleGraphics.scaleX = scale;
	obstacleGraphics.scaleY = scale;
	// Movement: random direction, speed, and optional curve
	// Start position: randomly from one of the four edges
	var edge = Math.floor(Math.random() * 4); // 0: top, 1: right, 2: bottom, 3: left
	var startX = 0,
		startY = 0,
		endX = 0,
		endY = 0;
	var w = 2048,
		h = 2732;
	// For curved movement, we use a simple parametric curve (sin/cos offset)
	self.curve = Math.random() < 0.5; // 50% chance to curve
	self.curvePhase = Math.random() * Math.PI * 2;
	self.curveAmp = 80 + Math.random() * 120;
	// Speed: fast, but random
	self.speed = 22 + Math.random() * 18; // px per frame
	// Set start/end positions based on edge
	if (edge === 0) {
		// top
		startX = 100 + Math.random() * (w - 200);
		startY = -100;
		endX = 100 + Math.random() * (w - 200);
		endY = h + 100;
	} else if (edge === 1) {
		// right
		startX = w + 100;
		startY = 100 + Math.random() * (h - 200);
		endX = -100;
		endY = 100 + Math.random() * (h - 200);
	} else if (edge === 2) {
		// bottom
		startX = 100 + Math.random() * (w - 200);
		startY = h + 100;
		endX = 100 + Math.random() * (w - 200);
		endY = -100;
	} else {
		// left
		startX = -100;
		startY = 100 + Math.random() * (h - 200);
		endX = w + 100;
		endY = 100 + Math.random() * (h - 200);
	}
	self.x = startX;
	self.y = startY;
	self.startX = startX;
	self.startY = startY;
	self.endX = endX;
	self.endY = endY;
	// For movement progress
	self.progress = 0; // 0 to 1
	// For collision detection
	self.lastIntersecting = false;
	// Update method: move along the path
	self.update = function () {
		// Move progress
		var dx = self.endX - self.startX;
		var dy = self.endY - self.startY;
		var dist = Math.sqrt(dx * dx + dy * dy);
		var totalFrames = dist / self.speed;
		self.progress += 1 / totalFrames;
		if (self.progress > 1.1) {
			self.progress = 1.1;
		}
		// Linear movement
		var px = self.startX + dx * self.progress;
		var py = self.startY + dy * self.progress;
		// Add curve if needed
		if (self.curve) {
			// Perpendicular direction
			var perpAngle = Math.atan2(dy, dx) + Math.PI / 2;
			var curveOffset = Math.sin(self.progress * Math.PI + self.curvePhase) * self.curveAmp;
			px += Math.cos(perpAngle) * curveOffset;
			py += Math.sin(perpAngle) * curveOffset;
		}
		self.x = px;
		self.y = py;
	};
	return self;
});
// Player class: draggable circle
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// For touch feedback
	self.flash = function () {
		tween(playerGraphics, {
			tint: 0xff0000
		}, {
			duration: 100,
			easing: tween.linear,
			onFinish: function onFinish() {
				tween(playerGraphics, {
					tint: 0xffffff
				}, {
					duration: 200,
					easing: tween.linear
				});
			}
		});
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x0000ff
});

/**** 
* Game Code
****/ 
// Game variables
// Obstacles: fast-moving, unpredictable shapes (boxes and ellipses, different colors/sizes)
// Player: small, bright circle
// Sound for dodge (optional, not used as per guidelines)
// LK.init.sound('dodge', {volume: 0.5});
var player = new Player();
var obstacles = [];
var dragNode = null;
var lastGameOver = false;
var timeSurvived = 0; // in ms
var timerText = null;
var spawnInterval = 36; // frames between spawns, will decrease
var minSpawnInterval = 12;
var spawnTick = 0;
var gameOver = false;
// Place player at center
player.x = 2048 / 2;
player.y = 2732 / 2;
game.addChild(player);
// Timer text (top center)
timerText = new Text2('0.00', {
	size: 120,
	fill: "#fff"
});
timerText.anchor.set(0.5, 0);
LK.gui.top.addChild(timerText);
// Prevent player from being placed in top left 100x100
function clampPlayerPosition(x, y) {
	var px = x,
		py = y;
	var r = player.width / 2;
	if (px < r + 10) px = r + 10;
	if (px > 2048 - r - 10) px = 2048 - r - 10;
	if (py < r + 10) py = r + 10;
	if (py > 2732 - r - 10) py = 2732 - r - 10;
	// Avoid top left menu
	if (px - r < 100 && py - r < 100) {
		if (px > py) px = 100 + r + 10;else py = 100 + r + 10;
	}
	return {
		x: px,
		y: py
	};
}
// Dragging logic
function handleMove(x, y, obj) {
	if (gameOver) return;
	if (dragNode) {
		var pos = clampPlayerPosition(x, y);
		dragNode.x = pos.x;
		dragNode.y = pos.y;
	}
}
game.move = handleMove;
game.down = function (x, y, obj) {
	// Only allow drag if touch is on player
	var dx = x - player.x;
	var dy = y - player.y;
	var dist = Math.sqrt(dx * dx + dy * dy);
	if (dist < player.width / 2 + 10) {
		dragNode = player;
		handleMove(x, y, obj);
	}
};
game.up = function (x, y, obj) {
	dragNode = null;
};
// Main update loop
game.update = function () {
	if (gameOver) return;
	// Update timer
	timeSurvived += 1000 / 60;
	var t = Math.floor(timeSurvived) / 1000;
	timerText.setText(t.toFixed(2));
	// Increase difficulty over time
	if (timeSurvived > 8000 && spawnInterval > minSpawnInterval) {
		spawnInterval = 24;
	}
	if (timeSurvived > 18000 && spawnInterval > minSpawnInterval) {
		spawnInterval = 16;
	}
	if (timeSurvived > 30000 && spawnInterval > minSpawnInterval) {
		spawnInterval = minSpawnInterval;
	}
	// Spawn new obstacles
	spawnTick++;
	if (spawnTick >= spawnInterval) {
		spawnTick = 0;
		var obs = new Obstacle();
		obstacles.push(obs);
		game.addChild(obs);
	}
	// Update obstacles
	for (var i = obstacles.length - 1; i >= 0; i--) {
		var obs = obstacles[i];
		obs.update();
		// Remove if out of bounds
		if (obs.progress > 1.05) {
			obs.destroy();
			obstacles.splice(i, 1);
			continue;
		}
		// Collision detection
		var intersecting = obs.intersects(player);
		if (!obs.lastIntersecting && intersecting) {
			// Game over
			player.flash();
			LK.effects.flashScreen(0xff0000, 800);
			gameOver = true;
			LK.setTimeout(function () {
				LK.showGameOver();
			}, 600);
			break;
		}
		obs.lastIntersecting = intersecting;
	}
};
// Reset logic (when game restarts)
game.on('reset', function () {
	// Remove all obstacles
	for (var i = 0; i < obstacles.length; i++) {
		obstacles[i].destroy();
	}
	obstacles = [];
	// Reset player position
	player.x = 2048 / 2;
	player.y = 2732 / 2;
	dragNode = null;
	timeSurvived = 0;
	spawnInterval = 36;
	spawnTick = 0;
	gameOver = false;
	timerText.setText('0.00');
});

===================================================================
--- original.js
+++ change.js
@@ -131,19 +131,19 @@
 /**** 
 * Initialize Game
 ****/ 
 var game = new LK.Game({
-	backgroundColor: 0x181818
+	backgroundColor: 0x0000ff
 });
 
 /**** 
 * Game Code
 ****/ 
-// LK.init.sound('dodge', {volume: 0.5});
-// Sound for dodge (optional, not used as per guidelines)
-// Player: small, bright circle
-// Obstacles: fast-moving, unpredictable shapes (boxes and ellipses, different colors/sizes)
 // Game variables
+// Obstacles: fast-moving, unpredictable shapes (boxes and ellipses, different colors/sizes)
+// Player: small, bright circle
+// Sound for dodge (optional, not used as per guidelines)
+// LK.init.sound('dodge', {volume: 0.5});
 var player = new Player();
 var obstacles = [];
 var dragNode = null;
 var lastGameOver = false;