/**** 
* Classes
****/ 
// Define a class for enemies
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 5;
	self.update = function () {
		self.x -= self.speed;
		if (self.x < -50) {
			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 / 2; // Store the ground position
	// 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;
	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;
		}
		// 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 = game.getTime();
			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 && self.y < self.groundY - 5) {
				// Going down but not near landing - show jump3
				self.sprites[jumpOffset + 2].alpha = 1; // jump3
			} else if (self.y >= self.groundY - 5) {
				// About to land - show jump1 briefly
				self.sprites[jumpOffset + 0].alpha = 1; // jump1
				// Make sure player doesn't go below ground
				if (self.y > self.groundY) {
					self.y = self.groundY;
				}
				// Schedule return to running after a brief moment
				LK.timeout(function () {
					self.isJumping = false;
					self.velocityY = 0;
					self.jumpState = "none";
					self.y = self.groundY; // Ensure player is at exact ground level
				}, 50); // Very short duration for jump1 at the end
			}
		} else {
			// Run animation when not jumping
			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;
		}
	};
	self.jump = function () {
		if (!self.isJumping) {
			self.isJumping = true;
			self.velocityY = -self.jumpHeight;
			self.jumpState = "start";
			self.jumpStartTime = game.getTime(); // Record when jump started
		}
	};
});

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

/**** 
* Game Code
****/ 
//<Assets used in the game will automatically appear here>
var background = game.addChild(LK.getAsset('background', {
	anchorX: 0,
	anchorY: 0
}));
background.x = 0;
background.y = 0;
// Initialize player
var player = game.addChild(new Player());
player.x = 2048 / 2;
player.y = 2732 / 2;
// 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;
// Handle game updates
game.update = function () {
	player.update();
	// Spawn enemies
	//enemySpawnCounter++;
	if (enemySpawnCounter >= enemySpawnInterval) {
		var enemy = new Enemy();
		enemy.x = 2048;
		enemy.y = 2732 / 2;
		enemies.push(enemy);
		game.addChild(enemy);
		// Randomize the spawn interval for the next 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();
};
var background = game.addChild(LK.getAsset('background', {
	anchorX: 0,
	anchorY: 0
}));
background.x = 0;
background.y = 0;
// Initialize player
var player = game.addChild(new Player());
player.x = 2048 / 2;
player.y = 2732 / 2;
// 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;
// Handle game updates
game.update = function () {
	player.update();
	// Spawn enemies
	//enemySpawnCounter++;
	if (enemySpawnCounter >= enemySpawnInterval) {
		var enemy = new Enemy();
		enemy.x = 2048;
		enemy.y = 2732 / 2;
		enemies.push(enemy);
		game.addChild(enemy);
		// Randomize the spawn interval for the next 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
@@ -22,12 +22,12 @@
 	// Animation properties
 	self.runAnimation = ['playerrun1', 'playerrun2', 'playerrun3', 'playerrun4', 'playerrun5', 'playerrun6'];
 	self.jumpAnimation = ['playerjump1', 'playerjump2', 'playerjump3'];
 	self.runFrame = 0;
-	self.jumpFrame = 0;
 	self.animationSpeed = 0.08;
 	self.animationCounter = 0;
 	self.sprites = [];
+	self.groundY = 2732 / 2; // Store the ground position
 	// 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], {
@@ -53,8 +53,9 @@
 	self.jumpHeight = 40;
 	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;
@@ -62,40 +63,35 @@
 		// Handle jumping physics and animation
 		if (self.isJumping) {
 			self.y += self.velocityY;
 			self.velocityY += 0.7;
-			// Determine jump animation based on velocity and position
-			if (self.velocityY < -10) {
-				// Initial phase - show jump1
-				if (self.jumpState !== "start") {
-					self.jumpState = "start";
-				}
-				self.sprites[self.runAnimation.length + 0].alpha = 1; // jump1
-			} else if (self.velocityY < 5) {
+			// Get jump frame index offset
+			var jumpOffset = self.runAnimation.length;
+			// Determine jump animation based on velocity and time
+			var currentTime = game.getTime();
+			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
-				if (self.jumpState !== "up") {
-					self.jumpState = "up";
+				self.sprites[jumpOffset + 1].alpha = 1; // jump2
+			} else if (self.velocityY > 0 && self.y < self.groundY - 5) {
+				// Going down but not near landing - show jump3
+				self.sprites[jumpOffset + 2].alpha = 1; // jump3
+			} else if (self.y >= self.groundY - 5) {
+				// About to land - show jump1 briefly
+				self.sprites[jumpOffset + 0].alpha = 1; // jump1
+				// Make sure player doesn't go below ground
+				if (self.y > self.groundY) {
+					self.y = self.groundY;
 				}
-				self.sprites[self.runAnimation.length + 1].alpha = 1; // jump2
-			} else {
-				// Going down - show jump3
-				if (self.jumpState !== "down") {
-					self.jumpState = "down";
-				}
-				self.sprites[self.runAnimation.length + 2].alpha = 1; // jump3
-			}
-			// Check if landing
-			if (self.y >= 2732 / 2) {
-				// Player has landed - show jump1 briefly before resuming run
-				self.sprites[self.runAnimation.length + 0].alpha = 1; // jump1
-				self.jumpState = "land";
 				// Schedule return to running after a brief moment
-				LK.setTimeout(function () {
-					self.y = 2732 / 2;
+				LK.timeout(function () {
 					self.isJumping = false;
 					self.velocityY = 0;
 					self.jumpState = "none";
-				}, 100);
+					self.y = self.groundY; // Ensure player is at exact ground level
+				}, 50); // Very short duration for jump1 at the end
 			}
 		} else {
 			// Run animation when not jumping
 			self.animationCounter += self.animationSpeed;
@@ -112,8 +108,9 @@
 		if (!self.isJumping) {
 			self.isJumping = true;
 			self.velocityY = -self.jumpHeight;
 			self.jumpState = "start";
+			self.jumpStartTime = game.getTime(); // Record when jump started
 		}
 	};
 });