/**** 
* Classes
****/ 
// Enemy class
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var gfx = self.attachAsset('enemy_dino', {
		anchorX: 0.5,
		anchorY: 1
	});
	self.vx = -2;
	self.lastX = 0;
	self.lastY = 0;
	self.update = function () {
		self.lastX = self.x;
		self.lastY = self.y;
		// Simple left-right movement
		self.x += self.vx;
	};
	return self;
});
// LevelGate class
var LevelGate = Container.expand(function () {
	var self = Container.call(this);
	var gfx = self.attachAsset('level_gate', {
		anchorX: 0.5,
		anchorY: 1
	});
	self.active = false;
	return self;
});
// Initialize player
// Meteor class
var Meteor = Container.expand(function () {
	var self = Container.call(this);
	var gfx = self.attachAsset('meteor', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.vy = 8;
	self.lastY = 0;
	self.update = function () {
		self.lastY = self.y;
		self.y += self.vy;
	};
	return self;
});
// Mushroom class
var Mushroom = Container.expand(function () {
	var self = Container.call(this);
	var gfx = self.attachAsset('mushroom', {
		anchorX: 0.5,
		anchorY: 1
	});
	self.collected = false;
	return self;
});
// Platform class
var Platform = Container.expand(function () {
	var self = Container.call(this);
	var gfx = self.attachAsset('platform', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	return self;
});
// Player class
var Player = Container.expand(function () {
	var self = Container.call(this);
	// Use walk animation asset (spritesheet with horizontal frames)
	var walkGfx = self.attachAsset('walk', {
		anchorX: 0.5,
		anchorY: 0.92 // slightly above bottom for more natural feet placement
	});
	// Animation state
	self.animFrame = 0;
	self.animFrameCount = 6; // walk asset has 6 frames horizontally
	self.animFrameWidth = walkGfx.width / self.animFrameCount;
	self.animFrameTime = 0;
	self.animFrameDuration = 4; // frames per animation frame (adjust for speed)
	self.facing = 1; // 1: right, -1: left
	// Set initial frame
	walkGfx.crop = {
		x: 0,
		y: 0,
		width: self.animFrameWidth,
		height: walkGfx.height
	};
	// Hide the default .width/.height, override with frame size for collision
	// Make the collision box wider and a bit taller for a more natural feel
	self.width = self.animFrameWidth * 1.4;
	self.height = walkGfx.height * 1.15;
	// Vertically offset the player so feet are at y, not the center of the sprite
	self.yOffset = walkGfx.height * 0.08; // adjust for anchorY above
	self.vx = 0;
	self.vy = 0;
	self.isJumping = false;
	self.lastX = 0;
	self.lastY = 0;
	self.update = function () {
		self.lastX = self.x;
		self.lastY = self.y;
		// Animation: Only animate if moving horizontally
		if (self.vx !== 0) {
			self.animFrameTime++;
			if (self.animFrameTime >= self.animFrameDuration) {
				self.animFrameTime = 0;
				self.animFrame = (self.animFrame + 1) % self.animFrameCount;
			}
		} else {
			self.animFrame = 0;
			self.animFrameTime = 0;
		}
		// Set facing direction
		if (self.vx > 0) self.facing = 1;else if (self.vx < 0) self.facing = -1;
		// Update crop for animation frame
		walkGfx.crop = {
			x: self.animFrame * self.animFrameWidth,
			y: 0,
			width: self.animFrameWidth,
			height: walkGfx.height
		};
		// Flip horizontally if facing left
		walkGfx.scaleX = self.facing;
		// Movement and gravity handled in game.update
		// Player position is updated in game.update, so nothing to do here
	};
	return self;
});

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

/**** 
* Game Code
****/ 
// Play background music at game start
LK.playMusic('musicId');
// Global game objects and state
var player = null;
var platforms = [];
var mushrooms = [];
var enemies = [];
var meteors = [];
var levelGate = null;
var score = 0;
var mushroomsToNextLevel = 10;
var canLevelUp = false;
// Initialize player
player = new Player();
player.x = 300;
player.y = 2200;
// Create a seamless row of platforms spanning the screen horizontally
var platformAsset = LK.getAsset('platform', {
	anchorX: 0.5,
	anchorY: 0.5
});
var platformWidth = platformAsset.width;
var yBase = 2300;
for (var px = 0; px < 2048; px += platformWidth) {
	var plat = new Platform();
	plat.x = px + platformWidth / 2;
	plat.y = yBase;
	game.addChild(plat);
	platforms.push(plat);
}
// Add player after platforms so player is in front of platforms
game.addChild(player);
// Example mushrooms
for (var i = 0; i < mushroomsToNextLevel; i++) {
	var mush = new Mushroom();
	mush.x = 400 + i * 150;
	mush.y = 2200 - i % 3 * 200;
	game.addChild(mush);
	mushrooms.push(mush);
}
// Example enemy
var enemy1 = new Enemy();
enemy1.x = 1200;
enemy1.y = 2300;
// Add enemy after player so enemy is in front of player
game.addChild(enemy1);
enemies.push(enemy1);
// Example meteor (will be dropped randomly in game.update)
// Touch controls
var jumpQueued = false;
var isTouching = false;
var swipeStartY = null;
// Track both horizontal touch and swipe for jump independently
game.down = function (x, y, obj) {
	isTouching = true;
	game.lastTouchX = x;
	swipeStartY = y;
};
game.up = function (x, y, obj) {
	isTouching = false;
	game.lastTouchX = undefined;
	if (typeof swipeStartY === "number" && swipeStartY - y > 80) {
		// Detected upward swipe
		jumpQueued = true;
	}
	swipeStartY = null;
};
game.update = function () {
	// Player movement
	var speed = 16;
	var gravity = 7.5; // Softer gravity for more natural jump arc
	var jumpPower = -110; // Jump power
	var maxFallSpeed = 60; // Terminal velocity
	// Horizontal movement: move right if touch is on right half, left if on left half
	// Allow jump and horizontal movement to be triggered simultaneously
	if (isTouching && typeof game.lastTouchX === "number") {
		if (game.lastTouchX < 1024) {
			player.vx = -speed;
		} else {
			player.vx = speed;
		}
	} else {
		player.vx = 0;
	}
	player.x += player.vx;
	// Apply yOffset for correct feet placement
	if (typeof player.yOffset === "number") {
		player.y -= player.yOffset;
	}
	// Prevent player from moving outside the left and right screen boundaries
	var playerHalfWidth = player.width ? player.width / 2 : 50;
	if (player.x - playerHalfWidth < 0) {
		player.x = playerHalfWidth;
	}
	if (player.x + playerHalfWidth > 2048) {
		player.x = 2048 - playerHalfWidth;
	}
	// --- Clean, Natural Jump Physics ---
	// Track jump state
	if (typeof player.jumpCount === "undefined") {
		player.jumpCount = 0;
	}
	if (typeof player.isJumping === "undefined") {
		player.isJumping = false;
	}
	if (typeof player.wasOnGround === "undefined") {
		player.wasOnGround = false;
	}
	if (typeof player.wasOnPlatform === "undefined") {
		player.wasOnPlatform = false;
	}
	// Detect platform and ground contact (for landing)
	var onPlatform = false;
	var onGround = false;
	var platformY = null;
	for (var i = 0; i < platforms.length; i++) {
		var plat = platforms[i];
		// Check if player feet cross platform top (falling)
		var platTop = plat.y - plat.height / 2;
		var playerFeetLast = player.lastY + 10;
		var playerFeetNow = player.y + 10;
		if (playerFeetLast <= platTop && playerFeetNow >= platTop && player.x > plat.x - plat.width / 2 && player.x < plat.x + plat.width / 2 && player.vy >= 0) {
			onPlatform = true;
			platformY = platTop - 10;
			break;
		}
	}
	if (player.lastY < 2300 && player.y >= 2300) {
		onGround = true;
	}
	// Reset jump count and state if landed
	if ((onPlatform || onGround) && player.vy >= 0) {
		player.jumpCount = 0;
		player.isJumping = false;
	}
	// Allow jump if jumpQueued and jumpCount < 2
	if (jumpQueued && player.jumpCount < 2) {
		player.vy = jumpPower;
		player.isJumping = true;
		player.jumpCount++;
		jumpQueued = false;
	}
	// Variable jump height: if player releases touch while rising, cut jump short
	if (!isTouching && player.vy < 0) {
		player.vy += gravity * 1.2; // Slightly faster fall if jump released early
	}
	// Gravity: smooth, natural arc
	if (player.vy < 0) {
		// Rising: gentle gravity for floaty apex
		player.vy += gravity * 0.18;
	} else {
		// Falling: normal gravity
		player.vy += gravity;
	}
	if (player.vy > maxFallSpeed) {
		player.vy = maxFallSpeed;
	}
	// Apply vertical movement
	player.y += player.vy;
	// Restore yOffset after movement
	if (typeof player.yOffset === "number") {
		player.y += player.yOffset;
	}
	// Snap to platform if landed
	if (onPlatform) {
		player.y = platformY;
		player.vy = 0;
		player.isJumping = false;
		player.jumpCount = 0;
	}
	// Snap to ground if landed
	if (player.y > 2300) {
		player.y = 2300;
		player.vy = 0;
		player.isJumping = false;
		player.jumpCount = 0;
	}
	// Update player lastX/lastY for event logic
	player.update();
	// Mushroom collection
	for (var i = 0; i < mushrooms.length; i++) {
		var mush = mushrooms[i];
		if (!mush.collected && player.intersects(mush)) {
			mush.collected = true;
			mush.visible = false;
			score += 1;
			if (score >= mushroomsToNextLevel) {
				canLevelUp = true;
				if (levelGate) {
					levelGate.active = true;
				}
			}
		}
	}
	// Enemy collision
	for (var i = 0; i < enemies.length; i++) {
		var enemy = enemies[i];
		enemy.update();
		if (player.intersects(enemy)) {
			LK.getSound('warn').play();
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
			return;
		}
	}
	// Meteor drop (randomly every 120 ticks)
	if (LK.ticks % 120 === 0) {
		var meteor = new Meteor();
		meteor.x = 400 + Math.floor(Math.random() * 1200);
		meteor.y = -100;
		game.addChild(meteor);
		meteors.push(meteor);
	}
	// Meteor update and collision
	for (var i = meteors.length - 1; i >= 0; i--) {
		var meteor = meteors[i];
		meteor.update();
		if (player.intersects(meteor)) {
			LK.getSound('warn').play();
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
			return;
		}
		if (meteor.y > 2800) {
			meteor.destroy();
			meteors.splice(i, 1);
		}
	}
	// Level gate logic
	if (!levelGate) {
		levelGate = new LevelGate();
		levelGate.x = 1800;
		levelGate.y = 1700;
		game.addChild(levelGate);
	}
	if (player.intersects(levelGate)) {
		if (canLevelUp) {
			LK.showYouWin();
		} else {
			// Play warning sound
			LK.getSound('warn').play();
		}
	}
};
// Score display
var scoreTxt = new Text2('0', {
	size: 120,
	fill: "#fff"
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Update score display in game.update
var oldGameUpdate = game.update;
game.update = function () {
	scoreTxt.setText(score);
	oldGameUpdate();
};

===================================================================
--- original.js
+++ change.js
@@ -69,9 +69,9 @@
 	var self = Container.call(this);
 	// Use walk animation asset (spritesheet with horizontal frames)
 	var walkGfx = self.attachAsset('walk', {
 		anchorX: 0.5,
-		anchorY: 1
+		anchorY: 0.92 // slightly above bottom for more natural feet placement
 	});
 	// Animation state
 	self.animFrame = 0;
 	self.animFrameCount = 6; // walk asset has 6 frames horizontally
@@ -89,8 +89,10 @@
 	// Hide the default .width/.height, override with frame size for collision
 	// Make the collision box wider and a bit taller for a more natural feel
 	self.width = self.animFrameWidth * 1.4;
 	self.height = walkGfx.height * 1.15;
+	// Vertically offset the player so feet are at y, not the center of the sprite
+	self.yOffset = walkGfx.height * 0.08; // adjust for anchorY above
 	self.vx = 0;
 	self.vy = 0;
 	self.isJumping = false;
 	self.lastX = 0;
@@ -220,8 +222,12 @@
 	} else {
 		player.vx = 0;
 	}
 	player.x += player.vx;
+	// Apply yOffset for correct feet placement
+	if (typeof player.yOffset === "number") {
+		player.y -= player.yOffset;
+	}
 	// Prevent player from moving outside the left and right screen boundaries
 	var playerHalfWidth = player.width ? player.width / 2 : 50;
 	if (player.x - playerHalfWidth < 0) {
 		player.x = playerHalfWidth;
@@ -290,8 +296,12 @@
 		player.vy = maxFallSpeed;
 	}
 	// Apply vertical movement
 	player.y += player.vy;
+	// Restore yOffset after movement
+	if (typeof player.yOffset === "number") {
+		player.y += player.yOffset;
+	}
 	// Snap to platform if landed
 	if (onPlatform) {
 		player.y = platformY;
 		player.vy = 0;