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

/**** 
* Classes
****/ 
var Coin = Container.expand(function () {
	var self = Container.call(this);
	var outerRing = self.attachAsset('coin_outer', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var innerRing = self.attachAsset('coin_inner', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var center = self.attachAsset('coin_center', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.collected = false;
	self.update = function () {
		if (!self.collected) {
			self.rotation += 0.1;
			if (self.intersects(player)) {
				self.collect();
			}
		}
	};
	self.collect = function () {
		if (!self.collected) {
			self.collected = true;
			LK.setScore(LK.getScore() + 10);
			scoreTxt.setText(LK.getScore());
			LK.getSound('coin').play();
			// Create particle effect
			for (var i = 0; i < 8; i++) {
				var particle = new Particle();
				particle.x = self.x;
				particle.y = self.y;
				particles.push(particle);
				game.addChild(particle);
			}
			tween(self, {
				scaleX: 0,
				scaleY: 0,
				alpha: 0,
				rotation: Math.PI * 2
			}, {
				duration: 300,
				onFinish: function onFinish() {
					self.destroy();
				}
			});
		}
	};
	return self;
});
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var body = self.attachAsset('enemy_body', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	var spikes = self.attachAsset('enemy_spikes', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	spikes.y = -45;
	var leftEye = self.attachAsset('enemy_eyes', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	leftEye.x = -10;
	leftEye.y = -35;
	var rightEye = self.attachAsset('enemy_eyes', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	rightEye.x = 10;
	rightEye.y = -35;
	self.velocityX = -2;
	self.defeated = false;
	self.update = function () {
		if (!self.defeated) {
			self.x += self.velocityX;
			// Bounce off platforms
			if (self.x <= 100 || self.x >= 1948) {
				self.velocityX *= -1;
			}
			if (self.intersects(player)) {
				if (player.velocityY > 0 && player.y < self.y - 20) {
					// Player jumped on enemy
					self.defeat();
					player.velocityY = -10; // Bounce player up
				} else {
					// Player touched enemy
					player.die();
				}
			}
		}
	};
	self.defeat = function () {
		if (!self.defeated) {
			self.defeated = true;
			LK.setScore(LK.getScore() + 50);
			scoreTxt.setText(LK.getScore());
			LK.getSound('enemy_defeat').play();
			tween(self, {
				scaleY: 0.1,
				alpha: 0
			}, {
				duration: 500,
				onFinish: function onFinish() {
					self.destroy();
				}
			});
		}
	};
	return self;
});
var Flag = Container.expand(function () {
	var self = Container.call(this);
	var pole = self.attachAsset('flag_pole', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	var cloth = self.attachAsset('flag_cloth', {
		anchorX: 0,
		anchorY: 0
	});
	cloth.x = 4;
	cloth.y = -110;
	var stripe1 = self.attachAsset('flag_stripe', {
		anchorX: 0,
		anchorY: 0
	});
	stripe1.x = 4;
	stripe1.y = -95;
	var stripe2 = self.attachAsset('flag_stripe', {
		anchorX: 0,
		anchorY: 0
	});
	stripe2.x = 4;
	stripe2.y = -80;
	self.animationTimer = 0;
	self.update = function () {
		// Flag waving animation
		self.animationTimer += 0.1;
		cloth.rotation = Math.sin(self.animationTimer) * 0.1;
		stripe1.rotation = Math.sin(self.animationTimer) * 0.1;
		stripe2.rotation = Math.sin(self.animationTimer) * 0.1;
		if (self.intersects(player)) {
			LK.setScore(LK.getScore() + 500);
			LK.showYouWin();
		}
	};
	return self;
});
var Particle = Container.expand(function () {
	var self = Container.call(this);
	var graphics = self.attachAsset('particle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.velocityX = (Math.random() - 0.5) * 10;
	self.velocityY = (Math.random() - 0.5) * 10;
	self.life = 60;
	self.maxLife = 60;
	self.update = function () {
		self.x += self.velocityX;
		self.y += self.velocityY;
		self.velocityY += 0.3;
		self.life--;
		self.alpha = self.life / self.maxLife;
		if (self.life <= 0) {
			self.destroy();
		}
	};
	return self;
});
var Platform = Container.expand(function () {
	var self = Container.call(this);
	var base = self.attachAsset('platform_base', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var top = self.attachAsset('platform_top', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	top.y = -15;
	return self;
});
var Player = Container.expand(function () {
	var self = Container.call(this);
	var body = self.attachAsset('player_body', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	var head = self.attachAsset('player_head', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	head.y = -60;
	var hat = self.attachAsset('player_hat', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	hat.y = -75;
	var leftEye = self.attachAsset('player_eyes', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	leftEye.x = -8;
	leftEye.y = -60;
	var rightEye = self.attachAsset('player_eyes', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	rightEye.x = 8;
	rightEye.y = -60;
	self.velocityX = 0;
	self.velocityY = 0;
	self.onGround = false;
	self.speed = 8;
	self.jumpPower = 20;
	self.gravity = 0.8;
	self.maxFallSpeed = 15;
	self.lives = 3;
	self.update = function () {
		// Apply gravity
		if (!self.onGround) {
			self.velocityY += self.gravity;
			if (self.velocityY > self.maxFallSpeed) {
				self.velocityY = self.maxFallSpeed;
			}
		}
		// Apply movement
		self.x += self.velocityX;
		self.y += self.velocityY;
		// Reset ground state
		self.onGround = false;
		// Check platform collisions
		for (var i = 0; i < platforms.length; i++) {
			var platform = platforms[i];
			if (self.intersects(platform)) {
				if (self.velocityY > 0 && self.y - 40 < platform.y) {
					self.y = platform.y;
					if (self.velocityY > 5) {
						// Create dust particles when landing hard
						for (var j = 0; j < 4; j++) {
							var dust = new Particle();
							dust.x = self.x + (Math.random() - 0.5) * 40;
							dust.y = self.y;
							dust.velocityY = -Math.random() * 5;
							particles.push(dust);
							game.addChild(dust);
						}
					}
					self.velocityY = 0;
					self.onGround = true;
				}
			}
		}
		// Check ground collision
		if (self.y >= groundLevel) {
			self.y = groundLevel;
			if (self.velocityY > 5) {
				// Create dust particles when landing hard
				for (var j = 0; j < 4; j++) {
					var dust = new Particle();
					dust.x = self.x + (Math.random() - 0.5) * 40;
					dust.y = self.y;
					dust.velocityY = -Math.random() * 5;
					particles.push(dust);
					game.addChild(dust);
				}
			}
			self.velocityY = 0;
			self.onGround = true;
		}
		// Check if fell off screen
		if (self.y > 2732 + 100) {
			self.die();
		}
		// Apply friction
		self.velocityX *= 0.85;
	};
	self.jump = function () {
		if (self.onGround) {
			self.velocityY = -self.jumpPower;
			self.onGround = false;
			LK.getSound('jump').play();
		}
	};
	self.moveLeft = function () {
		self.velocityX = -self.speed;
	};
	self.moveRight = function () {
		self.velocityX = self.speed;
	};
	self.die = function () {
		self.lives--;
		if (self.lives <= 0) {
			LK.showGameOver();
		} else {
			self.respawn();
		}
	};
	self.respawn = function () {
		self.x = 200;
		self.y = groundLevel;
		self.velocityX = 0;
		self.velocityY = 0;
		LK.effects.flashObject(self, 0xffffff, 1000);
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x87CEEB
});

/**** 
* Game Code
****/ 
// Visual effects
// Enhanced ground and platforms
// Enhanced flag
// Enhanced enemy
// Enhanced coin
// Player parts
var groundLevel = 2600;
var platforms = [];
var coins = [];
var enemies = [];
var particles = [];
var player;
var flag;
var scoreTxt;
var livesTxt;
var dragStartX = 0;
var isDragging = false;
var lastTouchX = 0;
// Create ground
for (var i = 0; i < 12; i++) {
	var groundBase = LK.getAsset('ground_base', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	groundBase.x = i * 200 + 100;
	groundBase.y = groundLevel + 30;
	game.addChild(groundBase);
	var groundTop = LK.getAsset('ground_top', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	groundTop.x = i * 200 + 100;
	groundTop.y = groundLevel + 7;
	game.addChild(groundTop);
	var groundDirt = LK.getAsset('ground_dirt', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	groundDirt.x = i * 200 + 100;
	groundDirt.y = groundLevel + 40;
	game.addChild(groundDirt);
}
// Create platforms
var platformPositions = [{
	x: 400,
	y: 2400
}, {
	x: 700,
	y: 2200
}, {
	x: 1100,
	y: 2000
}, {
	x: 1500,
	y: 1800
}, {
	x: 1800,
	y: 1600
}];
for (var i = 0; i < platformPositions.length; i++) {
	var platform = new Platform();
	platform.x = platformPositions[i].x;
	platform.y = platformPositions[i].y;
	platforms.push(platform);
	game.addChild(platform);
}
// Create coins
var coinPositions = [{
	x: 300,
	y: 2500
}, {
	x: 400,
	y: 2300
}, {
	x: 700,
	y: 2100
}, {
	x: 1100,
	y: 1900
}, {
	x: 1500,
	y: 1700
}, {
	x: 1800,
	y: 1500
}];
for (var i = 0; i < coinPositions.length; i++) {
	var coin = new Coin();
	coin.x = coinPositions[i].x;
	coin.y = coinPositions[i].y;
	coins.push(coin);
	game.addChild(coin);
}
// Create enemies
var enemyPositions = [{
	x: 600,
	y: groundLevel
}, {
	x: 1200,
	y: groundLevel
}, {
	x: 1600,
	y: groundLevel
}];
for (var i = 0; i < enemyPositions.length; i++) {
	var enemy = new Enemy();
	enemy.x = enemyPositions[i].x;
	enemy.y = enemyPositions[i].y;
	enemies.push(enemy);
	game.addChild(enemy);
}
// Create player
player = new Player();
player.x = 200;
player.y = groundLevel;
game.addChild(player);
// Create flag
flag = new Flag();
flag.x = 1900;
flag.y = groundLevel;
game.addChild(flag);
// Create UI
scoreTxt = new Text2('0', {
	size: 60,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
scoreTxt.setText(LK.getScore());
LK.gui.top.addChild(scoreTxt);
livesTxt = new Text2('Lives: 3', {
	size: 50,
	fill: 0xFFFFFF
});
livesTxt.anchor.set(0, 0);
livesTxt.x = 120;
livesTxt.y = 20;
LK.gui.topLeft.addChild(livesTxt);
// Camera follow player
var camera = {
	x: 0,
	y: 0
};
function updateCamera() {
	camera.x = player.x - 1024;
	camera.y = player.y - 1800;
	// Clamp camera bounds
	if (camera.x < 0) camera.x = 0;
	if (camera.x > 400) camera.x = 400;
	if (camera.y > -500) camera.y = -500;
	if (camera.y < -1200) camera.y = -1200;
	game.x = -camera.x;
	game.y = -camera.y;
}
// Touch controls
game.down = function (x, y, obj) {
	isDragging = true;
	dragStartX = x + camera.x;
	lastTouchX = x + camera.x;
	// Check if tap is for jumping
	if (y > 2000) {
		player.jump();
	}
};
game.move = function (x, y, obj) {
	if (isDragging) {
		var currentX = x + camera.x;
		var deltaX = currentX - lastTouchX;
		if (deltaX > 5) {
			player.moveRight();
		} else if (deltaX < -5) {
			player.moveLeft();
		}
		lastTouchX = currentX;
	}
};
game.up = function (x, y, obj) {
	isDragging = false;
};
game.update = function () {
	updateCamera();
	// Update lives display
	livesTxt.setText('Lives: ' + player.lives);
	// Remove destroyed coins
	for (var i = coins.length - 1; i >= 0; i--) {
		if (coins[i].collected) {
			coins.splice(i, 1);
		}
	}
	// Remove destroyed enemies
	for (var i = enemies.length - 1; i >= 0; i--) {
		if (enemies[i].defeated) {
			enemies.splice(i, 1);
		}
	}
	// Clean up destroyed particles
	for (var i = particles.length - 1; i >= 0; i--) {
		if (particles[i].life <= 0) {
			particles.splice(i, 1);
		}
	}
	// Dynamic background color based on player height
	var skyBlue = 0x87CEEB;
	var sunsetOrange = 0xFF8C69;
	var heightRatio = Math.max(0, Math.min(1, (2600 - player.y) / 1000));
	var r = Math.floor(135 + (255 - 135) * heightRatio);
	var g = Math.floor(206 + (140 - 206) * heightRatio);
	var b = Math.floor(235 + (105 - 235) * heightRatio);
	var dynamicColor = r << 16 | g << 8 | b;
	game.setBackgroundColor(dynamicColor);
};

===================================================================
--- original.js
+++ change.js
@@ -7,12 +7,20 @@
 * Classes
 ****/ 
 var Coin = Container.expand(function () {
 	var self = Container.call(this);
-	var graphics = self.attachAsset('coin', {
+	var outerRing = self.attachAsset('coin_outer', {
 		anchorX: 0.5,
 		anchorY: 0.5
 	});
+	var innerRing = self.attachAsset('coin_inner', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	var center = self.attachAsset('coin_center', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
 	self.collected = false;
 	self.update = function () {
 		if (!self.collected) {
 			self.rotation += 0.1;
@@ -26,12 +34,21 @@
 			self.collected = true;
 			LK.setScore(LK.getScore() + 10);
 			scoreTxt.setText(LK.getScore());
 			LK.getSound('coin').play();
+			// Create particle effect
+			for (var i = 0; i < 8; i++) {
+				var particle = new Particle();
+				particle.x = self.x;
+				particle.y = self.y;
+				particles.push(particle);
+				game.addChild(particle);
+			}
 			tween(self, {
 				scaleX: 0,
 				scaleY: 0,
-				alpha: 0
+				alpha: 0,
+				rotation: Math.PI * 2
 			}, {
 				duration: 300,
 				onFinish: function onFinish() {
 					self.destroy();
@@ -42,12 +59,29 @@
 	return self;
 });
 var Enemy = Container.expand(function () {
 	var self = Container.call(this);
-	var graphics = self.attachAsset('enemy', {
+	var body = self.attachAsset('enemy_body', {
 		anchorX: 0.5,
 		anchorY: 1.0
 	});
+	var spikes = self.attachAsset('enemy_spikes', {
+		anchorX: 0.5,
+		anchorY: 1.0
+	});
+	spikes.y = -45;
+	var leftEye = self.attachAsset('enemy_eyes', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	leftEye.x = -10;
+	leftEye.y = -35;
+	var rightEye = self.attachAsset('enemy_eyes', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	rightEye.x = 10;
+	rightEye.y = -35;
 	self.velocityX = -2;
 	self.defeated = false;
 	self.update = function () {
 		if (!self.defeated) {
@@ -88,34 +122,107 @@
 	return self;
 });
 var Flag = Container.expand(function () {
 	var self = Container.call(this);
-	var graphics = self.attachAsset('flag', {
+	var pole = self.attachAsset('flag_pole', {
 		anchorX: 0.5,
 		anchorY: 1.0
 	});
+	var cloth = self.attachAsset('flag_cloth', {
+		anchorX: 0,
+		anchorY: 0
+	});
+	cloth.x = 4;
+	cloth.y = -110;
+	var stripe1 = self.attachAsset('flag_stripe', {
+		anchorX: 0,
+		anchorY: 0
+	});
+	stripe1.x = 4;
+	stripe1.y = -95;
+	var stripe2 = self.attachAsset('flag_stripe', {
+		anchorX: 0,
+		anchorY: 0
+	});
+	stripe2.x = 4;
+	stripe2.y = -80;
+	self.animationTimer = 0;
 	self.update = function () {
+		// Flag waving animation
+		self.animationTimer += 0.1;
+		cloth.rotation = Math.sin(self.animationTimer) * 0.1;
+		stripe1.rotation = Math.sin(self.animationTimer) * 0.1;
+		stripe2.rotation = Math.sin(self.animationTimer) * 0.1;
 		if (self.intersects(player)) {
 			LK.setScore(LK.getScore() + 500);
 			LK.showYouWin();
 		}
 	};
 	return self;
 });
+var Particle = Container.expand(function () {
+	var self = Container.call(this);
+	var graphics = self.attachAsset('particle', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.velocityX = (Math.random() - 0.5) * 10;
+	self.velocityY = (Math.random() - 0.5) * 10;
+	self.life = 60;
+	self.maxLife = 60;
+	self.update = function () {
+		self.x += self.velocityX;
+		self.y += self.velocityY;
+		self.velocityY += 0.3;
+		self.life--;
+		self.alpha = self.life / self.maxLife;
+		if (self.life <= 0) {
+			self.destroy();
+		}
+	};
+	return self;
+});
 var Platform = Container.expand(function () {
 	var self = Container.call(this);
-	var graphics = self.attachAsset('platform', {
+	var base = self.attachAsset('platform_base', {
 		anchorX: 0.5,
 		anchorY: 0.5
 	});
+	var top = self.attachAsset('platform_top', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	top.y = -15;
 	return self;
 });
 var Player = Container.expand(function () {
 	var self = Container.call(this);
-	var graphics = self.attachAsset('player', {
+	var body = self.attachAsset('player_body', {
 		anchorX: 0.5,
 		anchorY: 1.0
 	});
+	var head = self.attachAsset('player_head', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	head.y = -60;
+	var hat = self.attachAsset('player_hat', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	hat.y = -75;
+	var leftEye = self.attachAsset('player_eyes', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	leftEye.x = -8;
+	leftEye.y = -60;
+	var rightEye = self.attachAsset('player_eyes', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	rightEye.x = 8;
+	rightEye.y = -60;
 	self.velocityX = 0;
 	self.velocityY = 0;
 	self.onGround = false;
 	self.speed = 8;
@@ -141,16 +248,38 @@
 			var platform = platforms[i];
 			if (self.intersects(platform)) {
 				if (self.velocityY > 0 && self.y - 40 < platform.y) {
 					self.y = platform.y;
+					if (self.velocityY > 5) {
+						// Create dust particles when landing hard
+						for (var j = 0; j < 4; j++) {
+							var dust = new Particle();
+							dust.x = self.x + (Math.random() - 0.5) * 40;
+							dust.y = self.y;
+							dust.velocityY = -Math.random() * 5;
+							particles.push(dust);
+							game.addChild(dust);
+						}
+					}
 					self.velocityY = 0;
 					self.onGround = true;
 				}
 			}
 		}
 		// Check ground collision
 		if (self.y >= groundLevel) {
 			self.y = groundLevel;
+			if (self.velocityY > 5) {
+				// Create dust particles when landing hard
+				for (var j = 0; j < 4; j++) {
+					var dust = new Particle();
+					dust.x = self.x + (Math.random() - 0.5) * 40;
+					dust.y = self.y;
+					dust.velocityY = -Math.random() * 5;
+					particles.push(dust);
+					game.addChild(dust);
+				}
+			}
 			self.velocityY = 0;
 			self.onGround = true;
 		}
 		// Check if fell off screen
@@ -200,12 +329,19 @@
 
 /**** 
 * Game Code
 ****/ 
+// Visual effects
+// Enhanced ground and platforms
+// Enhanced flag
+// Enhanced enemy
+// Enhanced coin
+// Player parts
 var groundLevel = 2600;
 var platforms = [];
 var coins = [];
 var enemies = [];
+var particles = [];
 var player;
 var flag;
 var scoreTxt;
 var livesTxt;
@@ -213,15 +349,29 @@
 var isDragging = false;
 var lastTouchX = 0;
 // Create ground
 for (var i = 0; i < 12; i++) {
-	var groundTile = LK.getAsset('ground', {
+	var groundBase = LK.getAsset('ground_base', {
 		anchorX: 0.5,
 		anchorY: 0.5
 	});
-	groundTile.x = i * 200 + 100;
-	groundTile.y = groundLevel + 30;
-	game.addChild(groundTile);
+	groundBase.x = i * 200 + 100;
+	groundBase.y = groundLevel + 30;
+	game.addChild(groundBase);
+	var groundTop = LK.getAsset('ground_top', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	groundTop.x = i * 200 + 100;
+	groundTop.y = groundLevel + 7;
+	game.addChild(groundTop);
+	var groundDirt = LK.getAsset('ground_dirt', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	groundDirt.x = i * 200 + 100;
+	groundDirt.y = groundLevel + 40;
+	game.addChild(groundDirt);
 }
 // Create platforms
 var platformPositions = [{
 	x: 400,
@@ -373,5 +523,20 @@
 		if (enemies[i].defeated) {
 			enemies.splice(i, 1);
 		}
 	}
+	// Clean up destroyed particles
+	for (var i = particles.length - 1; i >= 0; i--) {
+		if (particles[i].life <= 0) {
+			particles.splice(i, 1);
+		}
+	}
+	// Dynamic background color based on player height
+	var skyBlue = 0x87CEEB;
+	var sunsetOrange = 0xFF8C69;
+	var heightRatio = Math.max(0, Math.min(1, (2600 - player.y) / 1000));
+	var r = Math.floor(135 + (255 - 135) * heightRatio);
+	var g = Math.floor(206 + (140 - 206) * heightRatio);
+	var b = Math.floor(235 + (105 - 235) * heightRatio);
+	var dynamicColor = r << 16 | g << 8 | b;
+	game.setBackgroundColor(dynamicColor);
 };
\ No newline at end of file