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

/**** 
* Classes
****/ 
var Cloud = Container.expand(function () {
	var self = Container.call(this);
	var cloudGraphics = self.attachAsset('cloud', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -1.5;
	self.initialX = 0;
	self.update = function () {
		self.x += self.speed;
		// Reset cloud position when it goes off screen
		if (self.x < cameraX - 200) {
			self.x = cameraX + 2248 + Math.random() * 500;
			self.y = 500 + Math.random() * 800;
		}
	};
	return self;
});
var Coin = Container.expand(function () {
	var self = Container.call(this);
	var coinGraphics = self.attachAsset('coin', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.collected = false;
	self.bobOffset = 0;
	self.initialY = 0;
	self.collect = function () {
		if (!self.collected) {
			self.collected = true;
			LK.setScore(LK.getScore() + 50);
			LK.getSound('coin_collect').play();
			tween(self, {
				scaleX: 2,
				scaleY: 2,
				alpha: 0
			}, {
				duration: 300,
				onFinish: function onFinish() {
					self.destroy();
				}
			});
		}
	};
	self.update = function () {
		if (!self.collected) {
			// Bobbing animation
			self.bobOffset += 0.1;
			self.y = self.initialY + Math.sin(self.bobOffset) * 10;
			coinGraphics.rotation += 0.05;
		}
	};
	return self;
});
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	self.speed = -2;
	self.direction = -1;
	self.isDefeated = false;
	self.defeat = function () {
		if (!self.isDefeated) {
			self.isDefeated = true;
			LK.setScore(LK.getScore() + 100);
			LK.getSound('enemy_defeat').play();
			tween(self, {
				scaleY: 0.2,
				alpha: 0
			}, {
				duration: 300,
				onFinish: function onFinish() {
					self.destroy();
				}
			});
		}
	};
	self.update = function () {
		if (!self.isDefeated) {
			self.x += self.speed * self.direction;
			// Simple AI - turn around at edges or walls
			if (self.x < cameraX - 200 || self.x > cameraX + 2248) {
				self.direction *= -1;
			}
		}
	};
	return self;
});
var Flag = Container.expand(function () {
	var self = Container.call(this);
	var flagGraphics = self.attachAsset('flag', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	self.reached = false;
	self.reach = function () {
		if (!self.reached) {
			self.reached = true;
			LK.setScore(LK.getScore() + 1000);
			LK.effects.flashScreen(0x00ff00, 1000);
			// Check if this is the final level
			if (currentLevel >= maxLevels) {
				LK.setTimeout(function () {
					LK.showYouWin();
				}, 1000);
			} else {
				// Advance to next level
				LK.setTimeout(function () {
					nextLevel();
				}, 1000);
			}
		}
	};
	return self;
});
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	self.velocityY = 0;
	self.isGrounded = false;
	self.isJumping = false;
	self.jumpPower = -36; // Doubled jump power
	self.highJumpPower = -56; // Doubled high jump power for double tap
	self.gravity = 1.2;
	self.speed = 4;
	self.lives = 3;
	self.isInvulnerable = false;
	self.invulnerabilityTime = 0;
	self.tapCount = 0;
	self.lastTapTime = 0;
	self.doubleTapWindow = 300; // 300ms window for double tap
	self.jump = function () {
		if (self.isGrounded && !self.isJumping) {
			var currentTime = Date.now();
			// Check if this is a double tap
			if (currentTime - self.lastTapTime < self.doubleTapWindow) {
				// Double tap - high jump
				self.velocityY = self.highJumpPower;
				self.tapCount = 0;
			} else {
				// Single tap - normal jump
				self.velocityY = self.jumpPower;
				self.tapCount = 1;
			}
			self.lastTapTime = currentTime;
			self.isJumping = true;
			self.isGrounded = false;
			LK.getSound('jump').play();
		}
	};
	self.takeDamage = function () {
		if (!self.isInvulnerable) {
			self.lives--;
			self.isInvulnerable = true;
			self.invulnerabilityTime = 120; // 2 seconds at 60fps
			LK.effects.flashObject(self, 0xff0000, 500);
			if (self.lives <= 0) {
				LK.showGameOver();
			}
		}
	};
	self.update = function () {
		// Handle invulnerability timer
		if (self.isInvulnerable) {
			self.invulnerabilityTime--;
			if (self.invulnerabilityTime <= 0) {
				self.isInvulnerable = false;
			}
		}
		// Apply gravity
		self.velocityY += self.gravity;
		// Move player
		self.x += self.speed;
		self.y += self.velocityY;
		// Ground collision (basic ground level)
		if (self.y >= groundLevel) {
			self.y = groundLevel;
			self.velocityY = 0;
			self.isGrounded = true;
			self.isJumping = false;
		}
		// Platform collision
		for (var i = 0; i < platforms.length; i++) {
			var platform = platforms[i];
			if (self.intersects(platform)) {
				var playerBottom = self.y;
				var playerTop = self.y - 80; // Player height is 80
				var playerLeft = self.x - 40; // Player width is 80, so half is 40
				var playerRight = self.x + 40;
				var platformTop = platform.y - platform.height / 2;
				var platformBottom = platform.y + platform.height / 2;
				var platformLeft = platform.x - platform.width / 2;
				var platformRight = platform.x + platform.width / 2;
				// Landing on top of platform
				if (self.velocityY > 0 && playerBottom > platformTop - 20 && playerBottom < platformTop + 20) {
					self.y = platformTop;
					self.velocityY = 0;
					self.isGrounded = true;
					self.isJumping = false;
				}
				// Hitting platform from below
				else if (self.velocityY < 0 && playerTop < platformBottom + 20 && playerTop > platformBottom - 20) {
					self.y = platformBottom + 80; // Push player down
					self.velocityY = 0;
				}
				// Hitting platform from left side
				else if (playerRight > platformLeft && playerLeft < platformLeft && self.x < platform.x) {
					self.x = platformLeft - 40; // Push player to the left
				}
				// Hitting platform from right side  
				else if (playerLeft < platformRight && playerRight > platformRight && self.x > platform.x) {
					self.x = platformRight + 40; // Push player to the right
				}
			}
		}
		// Death by falling
		if (self.y > 2732 + 100) {
			self.takeDamage();
			self.x = cameraX + 100;
			self.y = groundLevel - 200;
		}
	};
	return self;
});

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

/**** 
* Game Code
****/ 
// Game variables
var player;
var enemies = [];
var coins = [];
var platforms = [];
var clouds = [];
var flag;
var cameraX = 0;
var groundLevel = 2600;
var levelWidth = 8000;
var currentLevel = 1;
var maxLevels = 11;
// UI elements
var scoreText = new Text2('Score: 0', {
	size: 60,
	fill: 0xFFFFFF
});
scoreText.anchor.set(0, 0);
LK.gui.topLeft.addChild(scoreText);
var livesText = new Text2('Lives: 3', {
	size: 60,
	fill: 0xFFFFFF
});
livesText.anchor.set(1, 0);
LK.gui.topRight.addChild(livesText);
var levelText = new Text2('Level: 1', {
	size: 60,
	fill: 0xFFFFFF
});
levelText.anchor.set(0.5, 0);
LK.gui.top.addChild(levelText);
// Create ground platforms
for (var i = 0; i < levelWidth / 200; i++) {
	var groundPiece = LK.getAsset('ground', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	groundPiece.x = i * 200 + 100;
	groundPiece.y = groundLevel + 30;
	game.addChild(groundPiece);
}
// Create player
player = game.addChild(new Player());
player.x = 200;
player.y = groundLevel;
// Create platforms
var platformPositions = [{
	x: 600,
	y: 2400
}, {
	x: 900,
	y: 2350
}, {
	x: 1200,
	y: 2380
}, {
	x: 1500,
	y: 2420
}, {
	x: 1800,
	y: 2360
}, {
	x: 2100,
	y: 2400
}, {
	x: 2400,
	y: 2370
}, {
	x: 2700,
	y: 2410
}, {
	x: 3000,
	y: 2390
}, {
	x: 3300,
	y: 2380
}];
for (var i = 0; i < platformPositions.length; i++) {
	var platform = LK.getAsset('platform', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	platform.x = platformPositions[i].x;
	platform.y = platformPositions[i].y;
	platforms.push(platform);
	game.addChild(platform);
}
// Create enemies
var enemyPositions = [{
	x: 1000,
	y: groundLevel
}, {
	x: 1600,
	y: groundLevel
}, {
	x: 2200,
	y: groundLevel
}, {
	x: 2800,
	y: groundLevel
}, {
	x: 3400,
	y: groundLevel
}, {
	x: 4000,
	y: groundLevel
}, {
	x: 4600,
	y: groundLevel
}, {
	x: 5200,
	y: groundLevel
}, {
	x: 5800,
	y: groundLevel
}];
for (var i = 0; i < enemyPositions.length; i++) {
	var enemy = game.addChild(new Enemy());
	enemy.x = enemyPositions[i].x;
	enemy.y = enemyPositions[i].y;
	enemies.push(enemy);
}
// Create coins
var coinPositions = [{
	x: 600,
	y: 2300
}, {
	x: 1000,
	y: 2250
}, {
	x: 1400,
	y: 2200
}, {
	x: 1900,
	y: 2250
}, {
	x: 2500,
	y: 2150
}, {
	x: 3100,
	y: 2250
}, {
	x: 3700,
	y: 2200
}, {
	x: 4300,
	y: 2250
}, {
	x: 4900,
	y: 2150
}, {
	x: 5500,
	y: 2250
}, {
	x: 6100,
	y: 2200
}, {
	x: 6500,
	y: 2300
}, {
	x: 6900,
	y: 2250
}];
for (var i = 0; i < coinPositions.length; i++) {
	var coin = game.addChild(new Coin());
	coin.x = coinPositions[i].x;
	coin.y = coinPositions[i].y;
	coin.initialY = coin.y;
	coins.push(coin);
}
// Create flag at the end
flag = game.addChild(new Flag());
flag.x = levelWidth - 200;
flag.y = groundLevel;
// Create moving clouds
for (var i = 0; i < 8; i++) {
	var cloud = game.addChild(new Cloud());
	cloud.x = Math.random() * levelWidth;
	cloud.y = 300 + Math.random() * 1000;
	cloud.initialX = cloud.x;
	clouds.push(cloud);
	// Add random tween movement for more dynamic clouds
	tween(cloud, {
		y: cloud.y + (Math.random() - 0.5) * 200
	}, {
		duration: 3000 + Math.random() * 2000,
		easing: tween.easeInOut,
		onFinish: function () {
			// Start a new random movement
			tween(this, {
				y: this.y + (Math.random() - 0.5) * 300
			}, {
				duration: 3000 + Math.random() * 2000,
				easing: tween.easeInOut
			});
		}.bind(cloud)
	});
}
// Touch controls
game.down = function (x, y, obj) {
	player.jump();
};
// Camera following
function updateCamera() {
	// Camera follows player with some offset
	var targetCameraX = player.x - 300;
	// Clamp camera to level bounds
	targetCameraX = Math.max(0, Math.min(targetCameraX, levelWidth - 2048));
	// Smooth camera movement
	cameraX += (targetCameraX - cameraX) * 0.1;
	// Apply camera offset to all game objects
	game.x = -cameraX;
}
// Game update loop
game.update = function () {
	// Update camera
	updateCamera();
	// Update UI
	scoreText.setText('Score: ' + LK.getScore());
	livesText.setText('Lives: ' + player.lives);
	levelText.setText('Level: ' + currentLevel);
	// Check player-enemy collisions
	for (var i = enemies.length - 1; i >= 0; i--) {
		var enemy = enemies[i];
		if (!enemy.isDefeated && player.intersects(enemy) && !player.isInvulnerable) {
			// Check if player is jumping on enemy
			if (player.velocityY > 0 && player.y < enemy.y - 20) {
				// Player stomps enemy
				enemy.defeat();
				enemies.splice(i, 1);
				player.velocityY = -15; // Small bounce
			} else {
				// Player takes damage
				player.takeDamage();
			}
		}
	}
	// Check player-coin collisions
	for (var i = coins.length - 1; i >= 0; i--) {
		var coin = coins[i];
		if (!coin.collected && player.intersects(coin)) {
			coin.collect();
			coins.splice(i, 1);
		}
	}
	// Check player-flag collision
	if (!flag.reached && player.intersects(flag)) {
		flag.reach();
	}
};
// Function to advance to next level
function nextLevel() {
	currentLevel++;
	if (currentLevel > maxLevels) {
		LK.showYouWin();
		return;
	}
	// Clear current level objects
	for (var i = enemies.length - 1; i >= 0; i--) {
		enemies[i].destroy();
	}
	enemies = [];
	for (var i = coins.length - 1; i >= 0; i--) {
		coins[i].destroy();
	}
	coins = [];
	for (var i = platforms.length - 1; i >= 0; i--) {
		platforms[i].destroy();
	}
	platforms = [];
	for (var i = clouds.length - 1; i >= 0; i--) {
		clouds[i].destroy();
	}
	clouds = [];
	flag.destroy();
	// Generate new level with increased difficulty
	generateLevel();
	// Reset player position
	player.x = 200;
	player.y = groundLevel;
	player.velocityY = 0;
	cameraX = 0;
}
// Function to generate level based on current level
function generateLevel() {
	var difficultyMultiplier = currentLevel * 0.3;
	var platformCount = Math.min(15 + currentLevel * 2, 25);
	var enemyCount = Math.min(10 + currentLevel, 20);
	var coinCount = Math.min(15 + currentLevel * 2, 30);
	// Create platforms with increasing complexity
	for (var i = 0; i < platformCount; i++) {
		var platform = LK.getAsset('platform', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		platform.x = 600 + i * (levelWidth - 1200) / platformCount + (Math.random() - 0.5) * 150;
		platform.y = 2400 - Math.random() * 100 - currentLevel * 10;
		platforms.push(platform);
		game.addChild(platform);
	}
	// Create enemies with increasing count
	for (var i = 0; i < enemyCount; i++) {
		var enemy = game.addChild(new Enemy());
		enemy.x = 800 + i * (levelWidth - 1600) / enemyCount + (Math.random() - 0.5) * 200;
		enemy.y = groundLevel;
		enemy.speed = -2 - difficultyMultiplier;
		enemies.push(enemy);
	}
	// Create coins
	for (var i = 0; i < coinCount; i++) {
		var coin = game.addChild(new Coin());
		coin.x = 500 + i * (levelWidth - 1000) / coinCount + (Math.random() - 0.5) * 400;
		coin.y = 2250 - Math.random() * 200;
		coin.initialY = coin.y;
		coins.push(coin);
	}
	// Create moving clouds
	var cloudCount = 6 + Math.floor(currentLevel / 2);
	for (var i = 0; i < cloudCount; i++) {
		var cloud = game.addChild(new Cloud());
		cloud.x = Math.random() * levelWidth;
		cloud.y = 300 + Math.random() * 1000;
		cloud.initialX = cloud.x;
		clouds.push(cloud);
		// Add random tween movement
		tween(cloud, {
			y: cloud.y + (Math.random() - 0.5) * 250
		}, {
			duration: 2500 + Math.random() * 2000,
			easing: tween.easeInOut,
			onFinish: function () {
				tween(this, {
					y: this.y + (Math.random() - 0.5) * 300
				}, {
					duration: 2500 + Math.random() * 2000,
					easing: tween.easeInOut
				});
			}.bind(cloud)
		});
	}
	// Create flag at the end
	flag = game.addChild(new Flag());
	flag.x = levelWidth - 200;
	flag.y = groundLevel;
	flag.reached = false;
}
// Start background music
LK.playMusic('background_music');
;

===================================================================
--- original.js
+++ change.js
@@ -194,17 +194,37 @@
 		}
 		// Platform collision
 		for (var i = 0; i < platforms.length; i++) {
 			var platform = platforms[i];
-			if (self.intersects(platform) && self.velocityY > 0) {
+			if (self.intersects(platform)) {
 				var playerBottom = self.y;
+				var playerTop = self.y - 80; // Player height is 80
+				var playerLeft = self.x - 40; // Player width is 80, so half is 40
+				var playerRight = self.x + 40;
 				var platformTop = platform.y - platform.height / 2;
-				if (playerBottom > platformTop - 20 && playerBottom < platformTop + 20) {
+				var platformBottom = platform.y + platform.height / 2;
+				var platformLeft = platform.x - platform.width / 2;
+				var platformRight = platform.x + platform.width / 2;
+				// Landing on top of platform
+				if (self.velocityY > 0 && playerBottom > platformTop - 20 && playerBottom < platformTop + 20) {
 					self.y = platformTop;
 					self.velocityY = 0;
 					self.isGrounded = true;
 					self.isJumping = false;
 				}
+				// Hitting platform from below
+				else if (self.velocityY < 0 && playerTop < platformBottom + 20 && playerTop > platformBottom - 20) {
+					self.y = platformBottom + 80; // Push player down
+					self.velocityY = 0;
+				}
+				// Hitting platform from left side
+				else if (playerRight > platformLeft && playerLeft < platformLeft && self.x < platform.x) {
+					self.x = platformLeft - 40; // Push player to the left
+				}
+				// Hitting platform from right side  
+				else if (playerLeft < platformRight && playerRight > platformRight && self.x > platform.x) {
+					self.x = platformRight + 40; // Push player to the right
+				}
 			}
 		}
 		// Death by falling
 		if (self.y > 2732 + 100) {