/**** 
* Classes
****/ 
// Coin class
var Coin = Container.expand(function () {
	var self = Container.call(this);
	var coinAsset = self.attachAsset('coin', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.width = coinAsset.width;
	self.height = coinAsset.height;
	self.update = function () {
		// Optionally animate coin
	};
	return self;
});
// Enemy class
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyAsset = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 1
	});
	self.vx = -6;
	self.width = enemyAsset.width;
	self.height = enemyAsset.height;
	self.update = function () {
		self.x += self.vx;
		if (self.lastX === undefined) self.lastX = self.x;
	};
	return self;
});
// Platform class
var Platform = Container.expand(function () {
	var self = Container.call(this);
	var platAsset = self.attachAsset('platform', {
		anchorX: 0,
		anchorY: 0
	});
	self.width = platAsset.width;
	self.height = platAsset.height;
	// Allow dynamic width scaling
	self.setWidth = function (newWidth) {
		self.width = newWidth;
		platAsset.scaleX = newWidth / platAsset.width;
	};
	return self;
});
// Player class
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerAsset = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 1
	});
	self.vx = 0;
	self.vy = 0;
	self.isOnGround = false;
	self.width = playerAsset.width;
	self.height = playerAsset.height;
	self.update = function () {
		// Gravity
		self.vy += 2.5;
		// Clamp vy
		if (self.vy > 60) self.vy = 60;
		self.x += self.vx;
		self.y += self.vy;
		// Save last position for collision checks
		if (self.lastX === undefined) self.lastX = self.x;
		if (self.lastY === undefined) self.lastY = self.y;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x87ceeb // sky blue
});

/**** 
* Game Code
****/ 
;
// --- Game variables ---
var player;
var platforms = [];
var coins = [];
var enemies = [];
var score = 0;
var scoreTxt;
var dragStartX = null;
var dragStartY = null;
var jumpQueued = false;
// --- Setup game objects ---
function setupLevel() {
	// Player
	player = new Player();
	player.x = 300;
	player.y = 2300; // Position player on ground
	game.addChild(player);
	// Ground platform - single flat ground across entire screen
	var ground = new Platform();
	ground.x = 0;
	ground.y = 2400;
	ground.setWidth(2048); // Full screen width
	game.addChild(ground);
	platforms.push(ground);
	// Coins
	var coin1 = new Coin();
	coin1.x = 750;
	coin1.y = 2300;
	game.addChild(coin1);
	coins.push(coin1);
	var coin2 = new Coin();
	coin2.x = 1250;
	coin2.y = 2200;
	game.addChild(coin2);
	coins.push(coin2);
	var coin3 = new Coin();
	coin3.x = 1700;
	coin3.y = 2300;
	game.addChild(coin3);
	coins.push(coin3);
	// Enemies
	var enemy1 = new Enemy();
	enemy1.x = 1000;
	enemy1.y = 2400;
	game.addChild(enemy1);
	enemies.push(enemy1);
	var enemy2 = new Enemy();
	enemy2.x = 1800;
	enemy2.y = 2400;
	game.addChild(enemy2);
	enemies.push(enemy2);
	// Score text
	scoreTxt = new Text2('0', {
		size: 120,
		fill: 0xFFF700
	});
	scoreTxt.anchor.set(0.5, 0);
	LK.gui.top.addChild(scoreTxt);
	scoreTxt.setText(score);
}
setupLevel();
// --- Controls (hold to move right and jump) ---
var isHolding = false;
game.down = function (x, y, obj) {
	isHolding = true;
	jumpQueued = true; // Jump when starting to hold
};
game.move = function (x, y, obj) {
	// No need to handle move for this control scheme
};
game.up = function (x, y, obj) {
	isHolding = false;
	player.vx = 0; // Stop moving when releasing
};
// --- Main game loop ---
game.update = function () {
	// Set player velocity based on holding state
	if (isHolding) {
		player.vx = 12; // Move right when holding
	} else {
		player.vx = 0; // Stop when not holding
	}
	// Player update
	player.update();
	// Clamp player to screen
	if (player.x < 0) player.x = 0;
	if (player.x > 2048) player.x = 2048;
	// Platform collision
	player.isOnGround = false;
	for (var i = 0; i < platforms.length; i++) {
		var plat = platforms[i];
		// Simple AABB collision, only check if falling
		if (player.vy >= 0 && player.x + player.width / 2 > plat.x && player.x - player.width / 2 < plat.x + plat.width && player.y > plat.y && player.lastY <= plat.y) {
			// Land on platform
			player.y = plat.y;
			player.vy = 0;
			player.isOnGround = true;
		}
	}
	// Jump
	if (jumpQueued && player.isOnGround) {
		player.vy = -48;
		jumpQueued = false;
	}
	// Coin collection
	for (var i = coins.length - 1; i >= 0; i--) {
		var coin = coins[i];
		if (player.intersects(coin)) {
			score += 1;
			scoreTxt.setText(score);
			coin.destroy();
			coins.splice(i, 1);
			// Respawn coin at random position ahead
			var newCoin = new Coin();
			newCoin.x = player.x + 800 + Math.random() * 400; // Spawn ahead of player
			newCoin.y = 2300 - Math.random() * 200; // Random height
			game.addChild(newCoin);
			coins.push(newCoin);
		}
	}
	// Enemy update and collision
	for (var i = enemies.length - 1; i >= 0; i--) {
		var enemy = enemies[i];
		enemy.update();
		// Remove if off screen and respawn
		if (enemy.x < -200) {
			enemy.destroy();
			enemies.splice(i, 1);
			// Respawn enemy at right side of screen
			var newEnemy = new Enemy();
			newEnemy.x = 2200; // Start slightly off right edge
			newEnemy.y = 2400;
			game.addChild(newEnemy);
			enemies.push(newEnemy);
			continue;
		}
		// Player/enemy collision
		var wasIntersecting = enemy.lastWasIntersecting || false;
		var isIntersecting = player.intersects(enemy);
		if (!wasIntersecting && isIntersecting) {
			// Check if player is falling onto enemy
			if (player.vy > 0 && player.y < enemy.y) {
				// Defeat enemy
				enemy.destroy();
				enemies.splice(i, 1);
				player.vy = -32; // bounce
				score += 5;
				scoreTxt.setText(score);
			} else {
				// Player hit from side or below: game over
				LK.effects.flashScreen(0xff0000, 1000);
				LK.showGameOver();
				return;
			}
		}
		enemy.lastWasIntersecting = isIntersecting;
	}
	// Save lastY for player
	player.lastY = player.y;
	player.lastX = player.x;
};

===================================================================
--- original.js
+++ change.js
@@ -195,18 +195,30 @@
 			score += 1;
 			scoreTxt.setText(score);
 			coin.destroy();
 			coins.splice(i, 1);
+			// Respawn coin at random position ahead
+			var newCoin = new Coin();
+			newCoin.x = player.x + 800 + Math.random() * 400; // Spawn ahead of player
+			newCoin.y = 2300 - Math.random() * 200; // Random height
+			game.addChild(newCoin);
+			coins.push(newCoin);
 		}
 	}
 	// Enemy update and collision
 	for (var i = enemies.length - 1; i >= 0; i--) {
 		var enemy = enemies[i];
 		enemy.update();
-		// Remove if off screen
+		// Remove if off screen and respawn
 		if (enemy.x < -200) {
 			enemy.destroy();
 			enemies.splice(i, 1);
+			// Respawn enemy at right side of screen
+			var newEnemy = new Enemy();
+			newEnemy.x = 2200; // Start slightly off right edge
+			newEnemy.y = 2400;
+			game.addChild(newEnemy);
+			enemies.push(newEnemy);
 			continue;
 		}
 		// Player/enemy collision
 		var wasIntersecting = enemy.lastWasIntersecting || false;