/**** 
* Classes
****/ 
var Enemy = Container.expand(function (type) {
	var self = Container.call(this);
	// Enemy properties
	self.type = type || 'basic';
	self.speed = 5;
	self.isOnGround = true;
	self.velocityY = 0;
	self.currentPlatform = null;
	self.groundY = 2732 / 1.5; // Same as player ground Y
	// Animation properties for goblin
	self.runAnimation = [];
	self.runFrame = 0;
	self.animationSpeed = 0.08;
	self.animationCounter = 0;
	self.sprites = [];
	// Initialize based on enemy type
	if (self.type === 'goblin') {
		// Setup goblin animations
		self.runAnimation = ['goblinrun1', 'goblinrun2', 'goblinrun3', 'goblinrun4', 'goblinrun5', 'goblinrun6', 'goblinrun7', 'goblinrun8'];
		// Pre-attach all animation frames
		for (var i = 0; i < self.runAnimation.length; i++) {
			var sprite = self.attachAsset(self.runAnimation[i], {
				anchorX: 0.5,
				anchorY: 0.5
			});
			sprite.alpha = i === 0 ? 1 : 0;
			self.sprites.push(sprite);
		}
	} else {
		// Basic enemy (original version)
		var enemyGraphics = self.attachAsset('enemy', {
			anchorX: 0.5,
			anchorY: 0.5
		});
	}
	self.checkPlatformCollision = function () {
		var onAnyPlatform = false;
		var platformHalfWidth = 500;
		for (var i = 0; i < platforms.length; i++) {
			var platform = platforms[i];
			var leftEdge = platform.x - platformHalfWidth;
			var rightEdge = platform.x + platformHalfWidth;
			if (self.x >= leftEdge && self.x <= rightEdge) {
				if (Math.abs(self.y - (platform.y - 250)) < 5) {
					onAnyPlatform = true;
					self.currentPlatform = platform;
					self.y = platform.y - 250;
					self.isOnGround = true;
					self.velocityY = 0;
					return true;
				}
			}
		}
		return false;
	};
	self.update = function () {
		// Move left
		self.x -= self.speed;
		// Handle platform-based movement
		if (self.currentPlatform) {
			var platformHalfWidth = 500;
			var stillOnPlatform = self.x > self.currentPlatform.x - platformHalfWidth && self.x < self.currentPlatform.x + platformHalfWidth;
			if (!stillOnPlatform) {
				self.isOnGround = false;
				self.currentPlatform = null;
				self.velocityY = 0.1;
			}
		}
		// Apply gravity if not on ground
		if (!self.isOnGround) {
			self.velocityY += 0.7;
			self.y += self.velocityY;
			// Check for platform collision while falling
			if (!self.checkPlatformCollision()) {
				// Check for ground collision
				if (self.y >= self.groundY) {
					self.y = self.groundY;
					self.isOnGround = true;
					self.velocityY = 0;
				}
			}
		}
		// Handle animations for goblin
		if (self.type === 'goblin') {
			// Hide all sprites first
			for (var i = 0; i < self.sprites.length; i++) {
				self.sprites[i].alpha = 0;
			}
			// Update animation
			self.animationCounter += self.animationSpeed;
			if (self.animationCounter >= 1) {
				self.animationCounter = 0;
				self.runFrame = (self.runFrame + 1) % self.runAnimation.length;
			}
			// Show current frame
			self.sprites[self.runFrame].alpha = 1;
		}
		// Destroy if off screen
		if (self.x < -50 || self.y > 2732) {
			self.destroy();
		}
	};
});
var Platform = Container.expand(function () {
	var self = Container.call(this);
	var platformGraphics = self.attachAsset('platform', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 5;
	self.passed = false;
	self.update = function () {
		self.x -= self.speed;
		if (self.x < -500) {
			// Increased value to ensure platforms are fully off-screen
			self.destroy();
		}
	};
});
//<Assets used in the game will automatically appear here>
var Player = Container.expand(function () {
	var self = Container.call(this);
	// Animation properties
	self.runAnimation = ['playerrun1', 'playerrun2', 'playerrun3', 'playerrun4', 'playerrun5', 'playerrun6'];
	self.jumpAnimation = ['playerjump1', 'playerjump2', 'playerjump3'];
	self.runFrame = 0;
	self.animationSpeed = 0.08;
	self.animationCounter = 0;
	self.sprites = [];
	self.groundY = 2732 * 0.9; // Move ground much lower to allow falling from all platforms
	// Platform collision properties
	self.isOnGround = true;
	self.currentPlatform = null;
	// Pre-attach all animation frames but make only the first one visible
	// First add run animation sprites
	for (var i = 0; i < self.runAnimation.length; i++) {
		var sprite = self.attachAsset(self.runAnimation[i], {
			anchorX: 0.5,
			anchorY: 0.5
		});
		// Set all frames except the first to be invisible
		sprite.alpha = i === 0 ? 1 : 0;
		self.sprites.push(sprite);
	}
	// Then add jump animation sprites
	for (var i = 0; i < self.jumpAnimation.length; i++) {
		var sprite = self.attachAsset(self.jumpAnimation[i], {
			anchorX: 0.5,
			anchorY: 0.5
		});
		// Set all jump frames to invisible initially
		sprite.alpha = 0;
		self.sprites.push(sprite);
	}
	// Movement properties
	self.speed = 5;
	self.jumpHeight = 40; // Keeping the original jump height
	self.isJumping = false;
	self.velocityY = 0;
	self.jumpState = "none"; // Added to track jump animation phases
	self.jumpStartTime = 0;
	self.update = function () {
		// Hide all sprites first
		for (var i = 0; i < self.sprites.length; i++) {
			self.sprites[i].alpha = 0;
		}
		// IMPORTANT: Platform collision check - runs EVERY frame
		var onAnyPlatform = false;
		var platformHalfWidth = 500; // half of platform width (1000/2)
		// First, check platform collisions
		for (var i = 0; i < platforms.length; i++) {
			var platform = platforms[i];
			var leftEdge = platform.x - platformHalfWidth;
			var rightEdge = platform.x + platformHalfWidth;
			// Check if player is within horizontal bounds of platform
			if (self.x >= leftEdge && self.x <= rightEdge) {
				// If we're at platform height and not jumping
				if (Math.abs(self.y - (platform.y - 250)) < 5 && !self.isJumping) {
					onAnyPlatform = true;
					self.currentPlatform = platform;
					self.y = platform.y - 250;
					self.isOnGround = true;
					self.velocityY = 0;
					break;
				}
			}
		}
		// Handle falling state
		if (!onAnyPlatform && !self.isJumping) {
			self.isOnGround = false;
			self.currentPlatform = null;
			// Apply gravity
			if (self.velocityY === 0) {
				self.velocityY = 0.1;
			}
			self.velocityY += 0.1;
			self.y += self.velocityY;
			// Ground collision check comes AFTER falling movement
			if (self.y >= self.groundY) {
				// Reached the bottom of the screen - game over
				LK.effects.flashScreen(0xff0000, 1000);
				LK.showGameOver();
			}
		}
		// Apply gravity if not on a platform and not actively jumping
		if (!self.isOnGround && !self.isJumping) {
			self.velocityY += 0.7;
			self.y += self.velocityY;
			// Show falling animation (using jump3)
			var jumpOffset = self.runAnimation.length;
			self.sprites[jumpOffset + 2].alpha = 1; // jump3
			// Check for platform collisions while falling
			self.checkPlatformCollision();
		}
		// Check if player has fallen off the bottom of the screen
		if (self.y > 2732) {
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
		}
		// Handle jumping physics and animation
		if (self.isJumping) {
			self.y += self.velocityY;
			self.velocityY += 0.7;
			// Get jump frame index offset
			var jumpOffset = self.runAnimation.length;
			// Determine jump animation based on velocity and time
			var currentTime = Date.now();
			if (currentTime - self.jumpStartTime < 100) {
				// Brief initial jump1 phase (first 100ms)
				self.sprites[jumpOffset + 0].alpha = 1; // jump1
			} else if (self.velocityY < 0) {
				// Going up - show jump2
				self.sprites[jumpOffset + 1].alpha = 1; // jump2
			} else if (self.velocityY > 0) {
				// Going down - show jump3
				self.sprites[jumpOffset + 2].alpha = 1; // jump3
				// Check for landing on platforms while falling during a jump
				self.checkPlatformCollision();
			}
			// End jump if hitting the original ground (for backward compatibility)
			if (self.y >= self.groundY && !self.currentPlatform) {
				self.y = self.groundY;
				self.isJumping = false;
				self.velocityY = 0;
				self.jumpState = "none";
				self.isOnGround = true;
			}
		} else if (self.isOnGround) {
			// Run animation when on a platform or ground
			self.animationCounter += self.animationSpeed;
			if (self.animationCounter >= 1) {
				self.animationCounter = 0;
				// Update to next frame
				self.runFrame = (self.runFrame + 1) % self.runAnimation.length;
			}
			// Show current run frame
			self.sprites[self.runFrame].alpha = 1;
		}
		// If on a platform, check if we're still above it
		if (self.currentPlatform) {
			// Use the constant platformWidth value
			var platformHalfWidth = platformWidth / 2; // Use platformWidth constant
			var stillOnPlatform = self.x > self.currentPlatform.x - platformHalfWidth && self.x < self.currentPlatform.x + platformHalfWidth;
			if (!stillOnPlatform) {
				var foundAnotherPlatform = false;
				for (var i = 0; i < platforms.length; i++) {
					var otherPlatform = platforms[i];
					if (otherPlatform === self.currentPlatform) {
						continue;
					}
					var otherHalfWidth = platformWidth / 2; // Use platformWidth constant
					if (self.x > otherPlatform.x - otherHalfWidth && self.x < otherPlatform.x + otherHalfWidth) {
						// We found another platform directly below player
						self.currentPlatform = otherPlatform;
						foundAnotherPlatform = true;
						break;
					}
				}
				// Only fall if we didn't find another platform
				if (!foundAnotherPlatform) {
					self.isOnGround = false;
					self.currentPlatform = null;
					// Start falling with initial velocity - ALWAYS apply gravity regardless of height
					self.velocityY = 0.1;
				}
			}
		}
	};
	self.jump = function () {
		if (self.isOnGround) {
			self.isJumping = true;
			self.isOnGround = false;
			self.velocityY = -self.jumpHeight;
			self.jumpState = "start";
			self.jumpStartTime = Date.now();
			self.currentPlatform = null;
		} else if (self.isJumping && self.velocityY < 10) {
			// Allow for a small double-jump to reach higher platforms
			// Only if not falling too fast
			self.velocityY = -self.jumpHeight * 0.7;
			self.jumpStartTime = Date.now();
		}
	};
	self.checkPlatformCollision = function () {
		for (var i = 0; i < platforms.length; i++) {
			var platform = platforms[i];
			var platformHalfWidth = platform.width / 2;
			// The offset should match exactly how the player aligns with the lower platform initially
			var playerPlatformOffset = 250; // This is the exact offset between player.y and lowPlatformHeight
			// Check if player is above the platform and falling
			if (self.velocityY > 0 &&
			// Must be falling down
			self.y < platform.y - playerPlatformOffset && self.y + self.velocityY >= platform.y - playerPlatformOffset && self.x > platform.x - platformHalfWidth && self.x < platform.x + platformHalfWidth) {
				// Land on the platform with the exact same positioning as on the low platform
				self.y = platform.y - playerPlatformOffset;
				self.velocityY = 0;
				self.isJumping = false;
				self.isOnGround = true;
				self.currentPlatform = platform;
				return;
			}
		}
	};
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000000 // Black background
});

/**** 
* Game Code
****/ 
var GAME_WIDTH = 2048;
var platforms = [];
var platformWidth = 1000; // Define platform width based on asset size
var platformSpawnInterval = 60;
var platformSpawnCounter = 0;
var platformOverlap = 50;
var platformSpeed = 5; // Define platform speed globally
var platformSpawnInterval = 190;
// = (1000 - 50) / 5 = 190
// Define the two fixed platform heights
var lowPlatformHeight = 2732 / 1.5 + 250; // Regular height (player.y + 250)
var highPlatformHeight = lowPlatformHeight - 600; // High platform (600 pixels higher)
var minPlatformsInSequence = 5; // Minimum platforms in a sequence
var maxPlatformsInSequence = 10; // Maximum platforms in a sequence
var platformsUntilNextChange = 5; // Initial longer ground sequence
var currentPlatformHeight = lowPlatformHeight;
var lastPlatformHeight = lowPlatformHeight;
// Simple toggle for alternating platform heights
var useHighPlatform = false;
var platformGap = 200; // Gap between platforms
var lastPlatformX = 0; // Track the last platform position
//<Assets used in the game will automatically appear here>
var background = game.addChild(LK.getAsset('background', {
	anchorX: 0,
	anchorY: 0,
	alpha: 0
}));
background.x = 0;
background.y = 0;
// Initialize player
var player = game.addChild(new Player());
player.x = 2048 / 4.5;
player.y = 2732 / 1.5;
// Initialize enemies
var enemies = [];
var enemySpawnInterval = 100;
var enemySpawnCounter = 0;
// Create a new Text2 object to display the score
var scoreText = new Text2('0', {
	size: 100,
	fill: 0xFFFFFF
});
// Add the score text to the game GUI at the top center of the screen
LK.gui.top.addChild(scoreText);
scoreText.x = 2048 / 2;
scoreText.y = 0;
// Initialize the game with starting platforms
function initializeGame() {
	// Create initial platforms at the low level
	for (var i = 0; i < 5; i++) {
		var platform = new Platform();
		if (i === 0) {
			// First platform centered on player
			platform.x = player.x;
		} else {
			// Position with slight overlap
			platform.x = lastPlatformX + platformWidth - platformOverlap;
		}
		platform.y = lowPlatformHeight;
		platforms.push(platform);
		game.addChild(platform);
		lastPlatformX = platform.x;
	}
	lastPlatformHeight = lowPlatformHeight;
	player.isOnGround = true;
	player.currentPlatform = platforms[0];
}
initializeGame();
// Handle game updates
game.update = function () {
	player.update();
	// Check if we need to spawn a new sequence of platforms
	var lastPlatform = platforms[platforms.length - 1];
	if (lastPlatform && lastPlatform.x < GAME_WIDTH + 500) {
		// Spawn further off-screen to prevent pop-in
		// Time to spawn a new sequence
		if (platformsUntilNextChange <= 0) {
			// Switch height
			currentPlatformHeight = currentPlatformHeight === lowPlatformHeight ? highPlatformHeight : lowPlatformHeight;
			// Generate new random sequence length
			platformsUntilNextChange = Math.floor(Math.random() * (maxPlatformsInSequence - minPlatformsInSequence + 1)) + minPlatformsInSequence;
			// Make ground sequences longer
			if (currentPlatformHeight === lowPlatformHeight) {
				platformsUntilNextChange += 5;
			}
		}
		// Spawn a single platform in the sequence
		var platform = new Platform();
		platform.x = lastPlatform.x + (platformWidth - platformOverlap);
		platform.y = currentPlatformHeight;
		platforms.push(platform);
		game.addChild(platform);
		// Decrement the counter for each platform added
		platformsUntilNextChange--;
	}
	// Update platforms
	for (var i = platforms.length - 1; i >= 0; i--) {
		platforms[i].update();
		// Remove platforms that are destroyed
		if (platforms[i].destroyed) {
			platforms.splice(i, 1);
		}
	}
	// Enemy handling (keep your existing enemy code)
	//enemySpawnCounter++;
	if (enemySpawnCounter >= enemySpawnInterval) {
		var enemy = new Enemy();
		enemy.x = 2048;
		enemy.y = 2732 / 2;
		enemies.push(enemy);
		game.addChild(enemy);
		enemySpawnInterval = Math.floor(Math.random() * 150) + 50;
		enemySpawnCounter = 0;
	}
	// Update enemies
	for (var j = enemies.length - 1; j >= 0; j--) {
		enemies[j].update();
		if (player.intersects(enemies[j])) {
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
		} else if (player.x > enemies[j].x && !enemies[j].passed) {
			enemies[j].passed = true;
			LK.setScore(LK.getScore() + 1);
			scoreText.setText(LK.getScore());
		}
	}
};
// Handle player jump
game.down = function (x, y, obj) {
	player.jump();
};

===================================================================
--- original.js
+++ change.js
@@ -1,18 +1,106 @@
 /**** 
 * Classes
 ****/ 
-// Define a class for enemies
-var Enemy = Container.expand(function () {
+var Enemy = Container.expand(function (type) {
 	var self = Container.call(this);
-	var enemyGraphics = self.attachAsset('enemy', {
-		anchorX: 0.5,
-		anchorY: 0.5
-	});
+	// Enemy properties
+	self.type = type || 'basic';
 	self.speed = 5;
+	self.isOnGround = true;
+	self.velocityY = 0;
+	self.currentPlatform = null;
+	self.groundY = 2732 / 1.5; // Same as player ground Y
+	// Animation properties for goblin
+	self.runAnimation = [];
+	self.runFrame = 0;
+	self.animationSpeed = 0.08;
+	self.animationCounter = 0;
+	self.sprites = [];
+	// Initialize based on enemy type
+	if (self.type === 'goblin') {
+		// Setup goblin animations
+		self.runAnimation = ['goblinrun1', 'goblinrun2', 'goblinrun3', 'goblinrun4', 'goblinrun5', 'goblinrun6', 'goblinrun7', 'goblinrun8'];
+		// Pre-attach all animation frames
+		for (var i = 0; i < self.runAnimation.length; i++) {
+			var sprite = self.attachAsset(self.runAnimation[i], {
+				anchorX: 0.5,
+				anchorY: 0.5
+			});
+			sprite.alpha = i === 0 ? 1 : 0;
+			self.sprites.push(sprite);
+		}
+	} else {
+		// Basic enemy (original version)
+		var enemyGraphics = self.attachAsset('enemy', {
+			anchorX: 0.5,
+			anchorY: 0.5
+		});
+	}
+	self.checkPlatformCollision = function () {
+		var onAnyPlatform = false;
+		var platformHalfWidth = 500;
+		for (var i = 0; i < platforms.length; i++) {
+			var platform = platforms[i];
+			var leftEdge = platform.x - platformHalfWidth;
+			var rightEdge = platform.x + platformHalfWidth;
+			if (self.x >= leftEdge && self.x <= rightEdge) {
+				if (Math.abs(self.y - (platform.y - 250)) < 5) {
+					onAnyPlatform = true;
+					self.currentPlatform = platform;
+					self.y = platform.y - 250;
+					self.isOnGround = true;
+					self.velocityY = 0;
+					return true;
+				}
+			}
+		}
+		return false;
+	};
 	self.update = function () {
+		// Move left
 		self.x -= self.speed;
-		if (self.x < -50) {
+		// Handle platform-based movement
+		if (self.currentPlatform) {
+			var platformHalfWidth = 500;
+			var stillOnPlatform = self.x > self.currentPlatform.x - platformHalfWidth && self.x < self.currentPlatform.x + platformHalfWidth;
+			if (!stillOnPlatform) {
+				self.isOnGround = false;
+				self.currentPlatform = null;
+				self.velocityY = 0.1;
+			}
+		}
+		// Apply gravity if not on ground
+		if (!self.isOnGround) {
+			self.velocityY += 0.7;
+			self.y += self.velocityY;
+			// Check for platform collision while falling
+			if (!self.checkPlatformCollision()) {
+				// Check for ground collision
+				if (self.y >= self.groundY) {
+					self.y = self.groundY;
+					self.isOnGround = true;
+					self.velocityY = 0;
+				}
+			}
+		}
+		// Handle animations for goblin
+		if (self.type === 'goblin') {
+			// Hide all sprites first
+			for (var i = 0; i < self.sprites.length; i++) {
+				self.sprites[i].alpha = 0;
+			}
+			// Update animation
+			self.animationCounter += self.animationSpeed;
+			if (self.animationCounter >= 1) {
+				self.animationCounter = 0;
+				self.runFrame = (self.runFrame + 1) % self.runAnimation.length;
+			}
+			// Show current frame
+			self.sprites[self.runFrame].alpha = 1;
+		}
+		// Destroy if off screen
+		if (self.x < -50 || self.y > 2732) {
 			self.destroy();
 		}
 	};
 });
@@ -107,9 +195,9 @@
 			// Apply gravity
 			if (self.velocityY === 0) {
 				self.velocityY = 0.1;
 			}
-			self.velocityY += 0.7;
+			self.velocityY += 0.1;
 			self.y += self.velocityY;
 			// Ground collision check comes AFTER falling movement
 			if (self.y >= self.groundY) {
 				// Reached the bottom of the screen - game over