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

/**** 
* Classes
****/ 
// Block obstacle
var Block = Container.expand(function () {
	var self = Container.call(this);
	var blockGfx = self.attachAsset('block', {
		anchorX: 0.5,
		anchorY: 1
	});
	self.width = blockGfx.width;
	self.height = blockGfx.height;
	self.type = 'block';
	self.update = function () {
		self.x -= obstacleSpeed;
	};
	return self;
});
// Player Cube
var Cube = Container.expand(function () {
	var self = Container.call(this);
	var cubeGfx = self.attachAsset('cube', {
		anchorX: 0.5,
		anchorY: 1
	});
	self.width = cubeGfx.width;
	self.height = cubeGfx.height;
	self.velY = 0;
	self.isOnGround = false;
	// Jump method
	self.jump = function () {
		if (self.isOnGround) {
			self.velY = -36; // Increased jump velocity for higher jump
			self.isOnGround = false;
		}
	};
	// Update method
	self.update = function () {
		// Gravity
		self.velY += 2.1; // Slightly increased gravity to balance higher jump arc
		if (self.velY > 60) self.velY = 60;
		self.y += self.velY;
		// Check for landing on top of a block
		self.isOnGround = false;
		for (var i = 0; i < obstacles.length; ++i) {
			var obs = obstacles[i];
			if (obs.type === 'block') {
				// Check if cube is falling and feet are just above the block, and horizontally overlapping
				var cubeBottom = self.y;
				var prevCubeBottom = self.y - self.velY;
				var blockTop = obs.y - obs.height;
				var blockLeft = obs.x - obs.width / 2;
				var blockRight = obs.x + obs.width / 2;
				var cubeLeft = self.x - self.width / 2;
				var cubeRight = self.x + self.width / 2;
				if (self.velY >= 0 && prevCubeBottom <= blockTop && cubeBottom >= blockTop && cubeRight > blockLeft && cubeLeft < blockRight) {
					self.y = blockTop;
					self.velY = 0;
					self.isOnGround = true;
					break;
				}
			}
		}
		// Prevent falling below ground
		if (self.y > groundY) {
			self.y = groundY;
			self.velY = 0;
			self.isOnGround = true;
		}
	};
	return self;
});
// Flying obstacle for flying section
var FlyingObstacle = Container.expand(function () {
	var self = Container.call(this);
	var obsGfx = self.attachAsset('spike', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.width = obsGfx.width;
	self.height = obsGfx.height;
	self.type = 'flyingObstacle';
	self.passed = false;
	self.lastX = 0;
	self.update = function () {
		self.x -= flyingObstacleSpeed;
	};
	return self;
});
// Minicoin collectible
var Minicoin = Container.expand(function () {
	var self = Container.call(this);
	var coinGfx = self.attachAsset('minicoin', {
		anchorX: 0.5,
		anchorY: 1
	});
	self.width = coinGfx.width;
	self.height = coinGfx.height;
	self.type = 'minicoin';
	self.collected = false;
	self.update = function () {
		self.x -= obstacleSpeed;
	};
	return self;
});
// Ship player for flying section
var Ship = Container.expand(function () {
	var self = Container.call(this);
	var shipGfx = self.attachAsset('ship', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.width = shipGfx.width;
	self.height = shipGfx.height;
	self.velY = 0;
	self.targetY = 0;
	self.isFlying = true;
	self.lastY = 0;
	self.update = function () {
		// Smoothly move toward targetY (touch/move position)
		var dy = self.targetY - self.y;
		self.velY = dy * 0.18;
		self.y += self.velY;
		// Clamp to screen
		if (self.y < 100 + self.height / 2) self.y = 100 + self.height / 2;
		if (self.y > groundY - 200) self.y = groundY - 200;
	};
	return self;
});
// ShopIcon class for shop UI
var ShopIcon = Container.expand(function () {
	var self = Container.call(this);
	self.iconId = null;
	self.price = 0;
	self.purchased = false;
	self.selected = false;
	var iconGfx = null;
	var priceTxt = null;
	var selectBorder = null;
	// Initialize the icon display
	self.initIcon = function (iconId, price, purchased, selected) {
		self.iconId = iconId;
		self.price = price;
		self.purchased = purchased;
		self.selected = selected;
		if (iconGfx) {
			self.removeChild(iconGfx);
		}
		iconGfx = self.attachAsset(iconId, {
			anchorX: 0.5,
			anchorY: 0.5
		});
		iconGfx.x = 0;
		iconGfx.y = 0;
		if (priceTxt) {
			self.removeChild(priceTxt);
		}
		priceTxt = new Text2(purchased ? selected ? "Selected" : "Owned" : price + " pts", {
			size: 48,
			fill: purchased ? selected ? 0x44bb44 : 0x888888 : 0x222222
		});
		priceTxt.anchor.set(0.5, 0);
		priceTxt.x = 0;
		priceTxt.y = 70;
		self.addChild(priceTxt);
		if (selectBorder) {
			self.removeChild(selectBorder);
		}
		selectBorder = null;
		if (selected) {
			selectBorder = LK.getAsset('block', {
				anchorX: 0.5,
				anchorY: 0.5
			});
			selectBorder.width = 140;
			selectBorder.height = 140;
			selectBorder.tint = 0x44bb44;
			selectBorder.alpha = 0.3;
			selectBorder.x = 0;
			selectBorder.y = 0;
			self.addChild(selectBorder);
			self.setChildIndex(selectBorder, 0);
		}
	};
	// Handle icon tap: buy or select
	self.down = function (x, y, obj) {
		if (!self.purchased && score >= self.price) {
			score -= self.price;
			scoreTxt.setText(score);
			self.purchased = true;
			// Save purchase
			storage['shop_' + self.iconId] = true;
		}
		if (self.purchased) {
			// Deselect all others
			for (var i = 0; i < shopIcons.length; ++i) {
				shopIcons[i].selected = false;
				shopIcons[i].initIcon(shopIcons[i].iconId, shopIcons[i].price, !!storage['shop_' + shopIcons[i].iconId] || shopIcons[i].price === 0, false);
			}
			self.selected = true;
			self.initIcon(self.iconId, self.price, self.purchased, true);
			// Save selection
			storage['selected_icon'] = self.iconId;
			// Change player icon
			setPlayerIcon(self.iconId);
		}
	};
	return self;
});
// Spike obstacle
var Spike = Container.expand(function () {
	var self = Container.call(this);
	var spikeGfx = self.attachAsset('spike', {
		anchorX: 0.5,
		anchorY: 1
	});
	self.width = spikeGfx.width;
	self.height = spikeGfx.height;
	self.type = 'spike';
	self.update = function () {
		self.x -= obstacleSpeed;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0xf0f0f0
});

/**** 
* Game Code
****/ 
// Removed old cube asset and re-added it
// Constants
// Cube player
// Ground
// Spike obstacle
// Block obstacle
// New ship asset
// Deleted and re-added player asset
var groundHeight = 80;
var groundY = 2732 - groundHeight;
var startX = 400;
var startY = groundY;
var obstacleSpeed = 12;
var minObstacleGap = 420;
var maxObstacleGap = 700;
var lastObstacleX = 0;
var score = 0;
var gameStarted = false;
// Arrays
var obstacles = [];
// --- Flying section variables ---
var flyingSectionStarted = false;
var flyingSectionTriggered = false;
var flyingObstacles = [];
var ship = null;
var flyingObstacleSpeed = 16;
var flyingSectionStartX = 1800; // X position to trigger flying section
var flyingSectionEndX = 400; // X position to end flying section (ship lands)
var flyingSectionDuration = 1200; // px to fly
var flyingSectionScore = 0;
var flyingSectionMaxScore = 10;
var flyingSectionProgress = 0;
var flyingSectionActive = false;
var flyingSectionShipStartY = 1000;
var flyingSectionShipStartX = 400;
var flyingSectionShipEndX = 1800;
var flyingSectionShipTargetX = 1800;
var flyingSectionShipLanded = false;
var flyingSectionObstacleGap = 320;
var flyingSectionLastObstacleX = 0;
var flyingSectionPassedObstacles = 0;
// Add background
var background = LK.getAsset('background', {
	anchorX: 0,
	anchorY: 0
});
background.x = 0;
background.y = 0;
game.addChild(background);
// Add ground
var ground = LK.getAsset('ground', {
	anchorX: 0,
	anchorY: 0
});
ground.x = 0;
ground.y = groundY;
game.addChild(ground);
// Add player cube (deleted and re-added)
var cube = new Cube();
cube.x = startX;
cube.y = startY;
game.addChild(cube);
// Shop UI variables
var shopIcons = [];
var shopBg = LK.getAsset('block', {
	anchorX: 0.5,
	anchorY: 0.5
});
shopBg.width = 900;
shopBg.height = 400;
shopBg.x = 2048 / 2;
shopBg.y = 2732 / 2;
shopBg.tint = 0xffffff;
shopBg.alpha = 0.97;
shopBg.visible = false;
var shopTitle = new Text2('Shop', {
	size: 100,
	fill: 0x222222
});
shopTitle.anchor.set(0.5, 0);
shopTitle.x = 2048 / 2;
shopTitle.y = 2732 / 2 - 180;
shopTitle.visible = false;
var closeShopBtn = new Text2('Close', {
	size: 70,
	fill: 0xcc2222
});
closeShopBtn.anchor.set(0.5, 0.5);
closeShopBtn.x = 2048 / 2 + 350;
closeShopBtn.y = 2732 / 2 - 170;
closeShopBtn.visible = false;
closeShopBtn.down = function (x, y, obj) {
	showShop(false);
};
LK.gui.center.addChild(shopBg);
LK.gui.center.addChild(shopTitle);
LK.gui.center.addChild(closeShopBtn);
// Shop icon data
var iconShopData = [{
	iconId: 'icon1',
	price: 0
},
// Default, free
{
	iconId: 'icon2',
	price: 50
}, {
	iconId: 'icon3',
	price: 100
}];
// Helper: set player icon
function setPlayerIcon(iconId) {
	if (cube && cube.children && cube.children.length > 0) {
		// Remove old icon
		for (var i = cube.children.length - 1; i >= 0; --i) {
			var ch = cube.children[i];
			if (ch.assetId && (ch.assetId === 'cube' || ch.assetId === 'icon1' || ch.assetId === 'icon2' || ch.assetId === 'icon3')) {
				cube.removeChild(ch);
			}
		}
		// Add new icon
		var newIcon = cube.attachAsset(iconId, {
			anchorX: 0.5,
			anchorY: 1
		});
		newIcon.x = 0;
		newIcon.y = 0;
		cube.width = newIcon.width;
		cube.height = newIcon.height;
	}
}
// Helper: show/hide shop
function showShop(show) {
	shopBg.visible = show;
	shopTitle.visible = show;
	closeShopBtn.visible = show;
	for (var i = 0; i < shopIcons.length; ++i) {
		shopIcons[i].visible = show;
	}
	if (show) {
		gameStarted = false;
	}
}
// Create shop icons
for (var i = 0; i < iconShopData.length; ++i) {
	var iconId = iconShopData[i].iconId;
	var price = iconShopData[i].price;
	var purchased = !!storage['shop_' + iconId] || price === 0;
	var selected = false;
	var selectedIconId = storage['selected_icon'];
	if (!selectedIconId && price === 0) selected = true;
	if (selectedIconId && selectedIconId === iconId) selected = true;
	var shopIcon = new ShopIcon();
	shopIcon.x = 2048 / 2 - 250 + i * 250;
	shopIcon.y = 2732 / 2 + 40;
	shopIcon.initIcon(iconId, price, purchased, selected);
	shopIcon.visible = false;
	LK.gui.center.addChild(shopIcon);
	shopIcons.push(shopIcon);
	if (selected) {
		setPlayerIcon(iconId);
	}
}
// Shop button
var shopBtn = new Text2('Shop', {
	size: 80,
	fill: 0x2266cc
});
shopBtn.anchor.set(0.5, 0.5);
shopBtn.x = 2048 / 2;
shopBtn.y = 2732 / 2;
shopBtn.down = function (x, y, obj) {
	showShop(true);
	// Optionally, you could pause the game here if needed, but shop UI already disables gameplay.
};
LK.gui.center.addChild(shopBtn);
// Score text
var scoreTxt = new Text2('0', {
	size: 120,
	fill: 0x222222
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Progress bar variables
var progressBarBg = LK.getAsset('block', {
	anchorX: 0,
	anchorY: 0
});
progressBarBg.width = 800;
progressBarBg.height = 40;
progressBarBg.x = 624; // center horizontally (2048-800)/2
progressBarBg.y = 160;
progressBarBg.tint = 0xcccccc;
var progressBarFill = LK.getAsset('block', {
	anchorX: 0,
	anchorY: 0
});
progressBarFill.width = 0;
progressBarFill.height = 40;
progressBarFill.x = 624;
progressBarFill.y = 160;
progressBarFill.tint = 0x44bb44;
LK.gui.top.addChild(progressBarBg);
LK.gui.top.addChild(progressBarFill);
var progressPercent = 0;
var progressMax = 100; // 100%
var progressPerScore = 2; // Each point increases progress by 2%
var winShown = false;
// Win text and replay button
var winText = new Text2('You win!', {
	size: 180,
	fill: 0x228822
});
winText.anchor.set(0.5, 0.5);
winText.x = 2048 / 2;
winText.y = 2732 / 2 - 120;
winText.visible = false;
var replayBtn = new Text2('Replay', {
	size: 120,
	fill: 0x2266cc
});
replayBtn.anchor.set(0.5, 0.5);
replayBtn.x = 2048 / 2;
replayBtn.y = 2732 / 2 + 80;
replayBtn.visible = false;
LK.gui.center.addChild(winText);
LK.gui.center.addChild(replayBtn);
// Replay handler
replayBtn.down = function (x, y, obj) {
	if (winShown) {
		winText.visible = false;
		replayBtn.visible = false;
		winShown = false;
		resetGame();
		gameStarted = true;
		LK.playMusic('Mad');
	}
};
// Helper: spawn obstacle
function spawnObstacle() {
	// Randomly choose spike or block structure
	var type = Math.random() < 0.6 ? 'spike' : 'block';
	if (type === 'spike') {
		var obs = new Spike();
		obs.x = 2048 + 100;
		obs.y = groundY;
		obstacles.push(obs);
		game.addChild(obs);
		lastObstacleX = obs.x;
	} else {
		// Structure: always 1 block high for passable platforms
		var platformHeight = 1;
		var platformLength = Math.floor(Math.random() * 3) + 2; // 2 to 4 blocks long
		var baseX = 2048 + 100;
		var blockW = 120;
		var blockH = 120;
		var minicoinsOnTop = Math.random() < 0.8; // 80% chance to spawn coins
		for (var i = 0; i < platformLength; ++i) {
			// Only one block high
			var block = new Block();
			block.x = baseX + i * blockW;
			block.y = groundY - 0 * blockH;
			obstacles.push(block);
			game.addChild(block);
			lastObstacleX = block.x;
			// Place minicoins on top of the structure
			if (minicoinsOnTop) {
				var coin = new Minicoin();
				coin.x = baseX + i * blockW;
				coin.y = groundY - blockH - 10; // 10px above top block
				obstacles.push(coin);
				game.addChild(coin);
			}
		}
		// Place a single spike on a random block in the structure
		if (platformLength > 1) {
			var spikeIndex = Math.floor(Math.random() * platformLength);
			var spike = new Spike();
			spike.x = baseX + spikeIndex * blockW;
			spike.y = groundY;
			obstacles.push(spike);
			game.addChild(spike);
		}
	}
}
// Helper: reset game state
function resetGame() {
	// Remove obstacles
	for (var i = 0; i < obstacles.length; ++i) {
		obstacles[i].destroy();
	}
	obstacles.length = 0;
	// Remove flying obstacles
	for (var i = 0; i < flyingObstacles.length; ++i) {
		flyingObstacles[i].destroy();
	}
	flyingObstacles.length = 0;
	// Hide ship
	if (ship) {
		ship.visible = false;
	}
	cube.x = startX;
	cube.y = startY;
	cube.velY = 0;
	cube.isOnGround = true;
	lastObstacleX = 1200;
	score = 0;
	scoreTxt.setText(score);
	progressPercent = 0;
	progressBarFill.width = 0;
	winText.visible = false;
	replayBtn.visible = false;
	winShown = false;
	gameStarted = false;
	// Reset flying section state
	flyingSectionStarted = false;
	flyingSectionTriggered = false;
	flyingSectionActive = false;
	flyingSectionShipLanded = false;
	// Hide shop UI on reset
	showShop(false);
	// Update shop icons (in case of new purchases)
	for (var i = 0; i < shopIcons.length; ++i) {
		var iconId = shopIcons[i].iconId;
		var purchased = !!storage['shop_' + iconId] || iconShopData[i].price === 0;
		var selectedIconId = storage['selected_icon'];
		var selected = selectedIconId && selectedIconId === iconId || !selectedIconId && iconShopData[i].price === 0;
		shopIcons[i].initIcon(iconId, iconShopData[i].price, purchased, selected);
	}
}
// Start game on first tap
game.down = function (x, y, obj) {
	if (!gameStarted) {
		gameStarted = true;
		return;
	}
	// If in flying section, do nothing on tap
	if (flyingSectionActive) return;
	cube.jump();
};
// Ship control: move ship to touch/move Y in flying section
game.move = function (x, y, obj) {
	if (flyingSectionActive && ship && ship.visible) {
		// Convert to local game coordinates if needed
		ship.targetY = y;
	}
};
// Main update loop
game.update = function () {
	if (!gameStarted || winShown) return;
	// --- FLYING SECTION TRIGGER ---
	if (!flyingSectionTriggered && score >= 15) {
		// Start flying section after 15 points
		flyingSectionTriggered = true;
		flyingSectionStarted = true;
		flyingSectionActive = true;
		// Hide cube, show ship
		cube.visible = false;
		if (!ship) {
			ship = new Ship();
			ship.x = flyingSectionShipStartX;
			ship.y = flyingSectionShipStartY;
			game.addChild(ship);
		}
		ship.visible = true;
		ship.x = flyingSectionShipStartX;
		ship.y = flyingSectionShipStartY;
		ship.targetY = flyingSectionShipStartY;
		// Remove all ground obstacles
		for (var i = obstacles.length - 1; i >= 0; --i) {
			obstacles[i].destroy();
			obstacles.splice(i, 1);
		}
		// Reset flying obstacles
		for (var i = flyingObstacles.length - 1; i >= 0; --i) {
			flyingObstacles[i].destroy();
			flyingObstacles.splice(i, 1);
		}
		flyingSectionLastObstacleX = 2048 + 200;
		flyingSectionPassedObstacles = 0;
		flyingSectionProgress = 0;
		flyingSectionScore = 0;
		flyingSectionShipLanded = false;
	}
	// --- FLYING SECTION ACTIVE ---
	if (flyingSectionActive) {
		// Update ship
		if (ship) {
			ship.update();
		}
		// Move ship forward
		if (ship && !flyingSectionShipLanded) {
			ship.x += 10;
			if (ship.x > flyingSectionShipTargetX) ship.x = flyingSectionShipTargetX;
		}
		// Spawn flying obstacles
		if (flyingSectionLastObstacleX - ship.x < 1200) {
			var gap = flyingSectionObstacleGap + Math.random() * 180;
			var obs = new FlyingObstacle();
			obs.x = flyingSectionLastObstacleX + gap;
			obs.y = 400 + Math.random() * (groundY - 600);
			flyingObstacles.push(obs);
			game.addChild(obs);
			flyingSectionLastObstacleX = obs.x;
		}
		// Update flying obstacles
		for (var i = flyingObstacles.length - 1; i >= 0; --i) {
			var obs = flyingObstacles[i];
			obs.update();
			// Remove if off screen
			if (obs.x < -200) {
				obs.destroy();
				flyingObstacles.splice(i, 1);
				continue;
			}
			// Collision with ship
			if (ship && ship.intersects(obs)) {
				LK.effects.flashScreen(0xff0000, 800);
				LK.showGameOver();
				return;
			}
			// Score: passed obstacle
			if (!obs.passed && obs.x + obs.width / 2 < ship.x - ship.width / 2) {
				obs.passed = true;
				flyingSectionScore += 1;
				score += 2;
				scoreTxt.setText(score);
				// Progress bar
				progressPercent = Math.min(progressPercent + progressPerScore * 2, progressMax);
				progressBarFill.width = progressPercent / progressMax * 800;
				if (progressPercent >= progressMax && !winShown) {
					winShown = true;
					gameStarted = false;
					winText.visible = true;
					replayBtn.visible = true;
				}
			}
		}
		// End flying section after enough distance or obstacles
		if (ship && ship.x >= flyingSectionShipTargetX && !flyingSectionShipLanded) {
			flyingSectionShipLanded = true;
			flyingSectionActive = false;
			// Hide ship, show cube, reset cube position
			ship.visible = false;
			cube.visible = true;
			cube.x = ship.x;
			cube.y = groundY;
			cube.velY = 0;
			cube.isOnGround = true;
			// Remove all flying obstacles
			for (var i = flyingObstacles.length - 1; i >= 0; --i) {
				flyingObstacles[i].destroy();
				flyingObstacles.splice(i, 1);
			}
			// Continue normal section, spawn obstacles ahead
			lastObstacleX = cube.x + 600;
		}
		return;
	}
	// Update player
	cube.update();
	// Update obstacles
	for (var i = obstacles.length - 1; i >= 0; --i) {
		var obs = obstacles[i];
		obs.update();
		// Remove if off screen
		if (obs.x < -200) {
			obs.destroy();
			obstacles.splice(i, 1);
			continue;
		}
		// Collision detection
		if (obs.type === 'minicoin') {
			if (!obs.collected && cube.intersects(obs)) {
				obs.collected = true;
				score += 5; // Minicoin gives 5 points
				scoreTxt.setText(score);
				// Play coin sound
				LK.getSound('Coin').play();
				// Update progress
				progressPercent = Math.min(progressPercent + progressPerScore * 5, progressMax);
				progressBarFill.width = progressPercent / progressMax * 800;
				if (progressPercent >= progressMax && !winShown) {
					winShown = true;
					gameStarted = false;
					winText.visible = true;
					replayBtn.visible = true;
					// LK.pauseGame(); //{30} // Removed: not needed, LK handles game state on win
				}
				obs.destroy();
				obstacles.splice(i, 1);
				continue;
			}
		} else {
			if (cube.intersects(obs)) {
				// Flash screen and game over
				LK.effects.flashScreen(0xff0000, 800);
				LK.showGameOver();
				return;
			}
			// Score: passed obstacle
			if (!obs.passed && obs.x + obs.width / 2 < cube.x - cube.width / 2) {
				obs.passed = true;
				score += 1;
				scoreTxt.setText(score);
				// Update progress
				progressPercent = Math.min(progressPercent + progressPerScore, progressMax);
				progressBarFill.width = progressPercent / progressMax * 800;
				if (progressPercent >= progressMax && !winShown) {
					winShown = true;
					gameStarted = false;
					winText.visible = true;
					replayBtn.visible = true;
					// LK.pauseGame(); //{3h} // Removed: not needed, LK handles game state on win
				}
			}
		}
	}
	// Spawn new obstacles
	if (obstacles.length === 0 || 2048 - lastObstacleX > minObstacleGap + Math.random() * (maxObstacleGap - minObstacleGap)) {
		spawnObstacle();
	}
};
// Reset game on game over
LK.on('gameover', function () {
	resetGame();
	LK.playMusic('Mad');
});
// Initial state
resetGame();
// Play music asset when the game starts
LK.playMusic('Mad');
// Shop icon assets (add more as needed)

===================================================================
--- original.js
+++ change.js
@@ -238,16 +238,16 @@
 
 /**** 
 * Game Code
 ****/ 
-// Deleted and re-added player asset
-// New ship asset
-// Block obstacle
-// Spike obstacle
-// Ground
-// Cube player
-// Constants
 // Removed old cube asset and re-added it
+// Constants
+// Cube player
+// Ground
+// Spike obstacle
+// Block obstacle
+// New ship asset
+// Deleted and re-added player asset
 var groundHeight = 80;
 var groundY = 2732 - groundHeight;
 var startX = 400;
 var startY = groundY;