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

/**** 
* Classes
****/ 
var Aircraft = Container.expand(function () {
	var self = Container.call(this);
	// Main aircraft body
	var aircraftGraphics = self.attachAsset('aircraft', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Aircraft wings
	var leftWing = self.attachAsset('aircraftWing', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	leftWing.x = -10;
	leftWing.y = 8;
	leftWing.rotation = -0.2;
	var rightWing = self.attachAsset('aircraftWing', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	rightWing.x = -10;
	rightWing.y = -8;
	rightWing.rotation = 0.2;
	// Aircraft tail
	var tail = self.attachAsset('aircraftTail', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	tail.x = -45;
	tail.y = 0;
	self.speed = 3;
	self.lastY = 0;
	self.update = function () {
		// Update last position for collision detection
		self.lastY = self.y;
	};
	return self;
});
var FinishLine = Container.expand(function () {
	var self = Container.call(this);
	// Main finish line
	var lineGraphics = self.attachAsset('finishLine', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Add flags at top and bottom for visibility
	var topFlag = self.attachAsset('finishFlag', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	topFlag.y = -1300;
	var bottomFlag = self.attachAsset('finishFlag', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	bottomFlag.y = 1300;
	self.lastX = 0;
	self.crossed = false;
	self.update = function () {
		// Update last position before moving
		self.lastX = self.x;
		// Move finish line from right to left
		self.x -= 3;
	};
	return self;
});
var Tower = Container.expand(function () {
	var self = Container.call(this);
	// Tower base
	var towerBase = self.attachAsset('towerBase', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Tower top
	var towerTop = self.attachAsset('towerTop', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	towerTop.y = -420; // Position at top of tower
	// Add windows to make it look more realistic
	for (var w = 0; w < 3; w++) {
		var window1 = self.attachAsset('towerWindow', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		window1.x = -30;
		window1.y = -300 + w * 150;
		var window2 = self.attachAsset('towerWindow', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		window2.x = 30;
		window2.y = -300 + w * 150;
	}
	self.lastX = 0;
	self.passed = false;
	self.update = function () {
		// Update last position before moving
		self.lastX = self.x;
		// Move tower from right to left (slower for easier gameplay)
		self.x -= 3;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
// Game variables
var game = new LK.Game({
	backgroundColor: 0x87CEFA // More realistic sky blue background
});

/**** 
* Game Code
****/ 
//Storage plugin for persistent game data
// Game variables
// Initialize assets for the tower dodge flight game
var aircraft;
var towers = [];
var finishLine = null;
var showingMenu = false;
var currentLevel = storage.currentLevel || 1;
var levelScore = 0;
var towersToComplete = 5; // Fewer towers needed for level 1
var towerSpawnTimer = 0;
var gameStarted = false;
var menuContainer = null;
// UI Elements
var levelText = new Text2('Level: 1', {
	size: 60,
	fill: 0xFFFFFF
});
levelText.anchor.set(0, 0);
LK.gui.topLeft.addChild(levelText);
levelText.x = 120; // Avoid top-left menu area
levelText.y = 20;
var scoreText = new Text2('Score: 0', {
	size: 60,
	fill: 0xFFFFFF
});
scoreText.anchor.set(1, 0);
LK.gui.topRight.addChild(scoreText);
var progressText = new Text2('Progress: 0/10', {
	size: 50,
	fill: 0xFFFFFF
});
progressText.anchor.set(0.5, 0);
LK.gui.top.addChild(progressText);
progressText.y = 100;
// Initialize aircraft
aircraft = game.addChild(new Aircraft());
aircraft.x = 300;
aircraft.y = 1366; // Center vertically
aircraft.lastIntersecting = false;
// Touch controls for aircraft movement
var dragActive = false;
game.down = function (x, y, obj) {
	dragActive = true;
	gameStarted = true;
};
game.up = function (x, y, obj) {
	dragActive = false;
};
game.move = function (x, y, obj) {
	if (dragActive) {
		aircraft.y = y;
		// Keep aircraft within screen bounds
		if (aircraft.y < 50) aircraft.y = 50;
		if (aircraft.y > 2680) aircraft.y = 2680;
	}
};
// Function to spawn tower
function spawnTower() {
	var tower = new Tower();
	tower.x = 2200; // Start from right edge
	// Random height position with gap for aircraft to pass
	var gapSize = Math.max(300, 500 - currentLevel * 30); // Start with larger gap, reduce more gradually
	var gapPosition = Math.random() * (2732 - gapSize - 200) + 100;
	// Create top tower
	var topTower = game.addChild(new Tower());
	topTower.x = tower.x;
	topTower.y = gapPosition / 2;
	topTower.lastIntersecting = false;
	towers.push(topTower);
	// Create bottom tower
	var bottomTower = game.addChild(new Tower());
	bottomTower.x = tower.x;
	bottomTower.y = gapPosition + gapSize + (2732 - gapPosition - gapSize) / 2;
	bottomTower.lastIntersecting = false;
	towers.push(bottomTower);
}
// Function to spawn finish line
function spawnFinishLine() {
	if (finishLine) return; // Don't spawn if already exists
	finishLine = game.addChild(new FinishLine());
	finishLine.x = 2500; // Start further right than towers
	finishLine.y = 1366; // Center vertically
	finishLine.lastIntersecting = false;
}
// Function to create level completion menu
function createLevelMenu() {
	showingMenu = true;
	menuContainer = new Container();
	game.addChild(menuContainer);
	// Semi-transparent background
	var menuBg = LK.getAsset('towerBase', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 8,
		scaleY: 2,
		alpha: 0.8
	});
	menuBg.x = 1024;
	menuBg.y = 1366;
	menuContainer.addChild(menuBg);
	// Title text
	var titleText = new Text2('Level ' + currentLevel + ' Complete!', {
		size: 80,
		fill: 0xFFFFFF
	});
	titleText.anchor.set(0.5, 0.5);
	titleText.x = 1024;
	titleText.y = 1200;
	menuContainer.addChild(titleText);
	// Retry button
	var retryText = new Text2('Retry Level', {
		size: 60,
		fill: 0x00FF00
	});
	retryText.anchor.set(0.5, 0.5);
	retryText.x = 1024;
	retryText.y = 1300;
	retryText.interactive = true;
	retryText.down = function () {
		restartCurrentLevel();
	};
	menuContainer.addChild(retryText);
	// Next level button
	var nextText = new Text2('Next Level', {
		size: 60,
		fill: 0x0080FF
	});
	nextText.anchor.set(0.5, 0.5);
	nextText.x = 1024;
	nextText.y = 1400;
	nextText.interactive = true;
	nextText.down = function () {
		goToNextLevel();
	};
	menuContainer.addChild(nextText);
	// Return to level 1 button
	var returnText = new Text2('Return to Level 1', {
		size: 60,
		fill: 0xFF8000
	});
	returnText.anchor.set(0.5, 0.5);
	returnText.x = 1024;
	returnText.y = 1500;
	returnText.interactive = true;
	returnText.down = function () {
		returnToLevel1();
	};
	menuContainer.addChild(returnText);
}
// Function to restart current level
function restartCurrentLevel() {
	hideMenu();
	levelScore = 0;
	// Clear existing towers and finish line
	clearLevel();
	// Reset aircraft position
	aircraft.x = 300;
	aircraft.y = 1366;
	// Update UI
	progressText.setText('Progress: 0/' + towersToComplete);
}
// Function to go to next level
function goToNextLevel() {
	hideMenu();
	completeLevel();
}
// Function to return to level 1
function returnToLevel1() {
	hideMenu();
	currentLevel = 1;
	storage.currentLevel = 1;
	levelScore = 0;
	towersToComplete = 5;
	// Clear existing towers and finish line
	clearLevel();
	// Reset aircraft position
	aircraft.x = 300;
	aircraft.y = 1366;
	// Update UI
	levelText.setText('Level: ' + currentLevel);
	progressText.setText('Progress: 0/' + towersToComplete);
}
// Function to hide menu
function hideMenu() {
	if (menuContainer) {
		menuContainer.destroy();
		menuContainer = null;
	}
	showingMenu = false;
	gameStarted = true;
}
// Function to clear level objects
function clearLevel() {
	// Clear existing towers
	for (var i = towers.length - 1; i >= 0; i--) {
		towers[i].destroy();
		towers.splice(i, 1);
	}
	// Clear finish line
	if (finishLine) {
		finishLine.destroy();
		finishLine = null;
	}
}
// Function to complete level
function completeLevel() {
	currentLevel++;
	// Save progress to storage
	storage.currentLevel = currentLevel;
	levelScore = 0;
	towersToComplete = Math.min(15, 5 + currentLevel * 2); // Start with 5, increase by 2 each level
	// Clear existing towers and finish line
	clearLevel();
	// Reset aircraft position
	aircraft.x = 300;
	aircraft.y = 1366;
	// Update UI
	levelText.setText('Level: ' + currentLevel);
	progressText.setText('Progress: 0/' + towersToComplete);
	// Flash screen green for level completion
	LK.effects.flashScreen(0x00ff00, 1000);
}
// Function to handle game over
function gameOver() {
	// Save current level to storage so player can restart from this level
	storage.currentLevel = currentLevel;
	LK.effects.flashScreen(0xff0000, 1000);
	LK.getSound('crash').play();
	LK.showGameOver();
}
// Main game update loop
game.update = function () {
	if (!gameStarted || showingMenu) return;
	// Spawn towers based on level difficulty
	var spawnRate = Math.max(90, 180 - currentLevel * 15); // Slower spawning, especially for level 1
	if (LK.ticks % spawnRate === 0) {
		spawnTower();
	}
	// Check if we should spawn finish line
	var progress = Math.floor(levelScore / 2);
	if (progress >= towersToComplete && !finishLine) {
		spawnFinishLine();
	}
	// Update finish line
	if (finishLine) {
		// Check if finish line went off screen
		if (finishLine.lastX >= -200 && finishLine.x < -200) {
			finishLine.destroy();
			finishLine = null;
		}
		// Check if aircraft crossed finish line
		if (!finishLine.crossed && finishLine.x < aircraft.x) {
			finishLine.crossed = true;
			createLevelMenu();
			return;
		}
	}
	// Update towers
	for (var i = towers.length - 1; i >= 0; i--) {
		var tower = towers[i];
		// Check if tower went off screen
		if (tower.lastX >= -200 && tower.x < -200) {
			tower.destroy();
			towers.splice(i, 1);
			continue;
		}
		// Check collision with aircraft
		var currentIntersecting = aircraft.intersects(tower);
		if (!tower.lastIntersecting && currentIntersecting) {
			gameOver();
			return;
		}
		tower.lastIntersecting = currentIntersecting;
		// Check if aircraft passed tower (score point)
		if (!tower.passed && tower.x < aircraft.x - 100) {
			tower.passed = true;
			levelScore++;
			LK.setScore(LK.getScore() + 10 * currentLevel); // More points per level
			LK.getSound('dodge').play();
			// Update progress
			var progress = Math.floor(levelScore / 2); // Two towers per obstacle
			progressText.setText('Progress: ' + progress + '/' + towersToComplete);
			scoreText.setText('Score: ' + LK.getScore());
		}
	}
	// Aircraft stays stationary while towers move to create forward movement illusion
};

===================================================================
--- original.js
+++ change.js
@@ -42,8 +42,36 @@
 		self.lastY = self.y;
 	};
 	return self;
 });
+var FinishLine = Container.expand(function () {
+	var self = Container.call(this);
+	// Main finish line
+	var lineGraphics = self.attachAsset('finishLine', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	// Add flags at top and bottom for visibility
+	var topFlag = self.attachAsset('finishFlag', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	topFlag.y = -1300;
+	var bottomFlag = self.attachAsset('finishFlag', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	bottomFlag.y = 1300;
+	self.lastX = 0;
+	self.crossed = false;
+	self.update = function () {
+		// Update last position before moving
+		self.lastX = self.x;
+		// Move finish line from right to left
+		self.x -= 3;
+	};
+	return self;
+});
 var Tower = Container.expand(function () {
 	var self = Container.call(this);
 	// Tower base
 	var towerBase = self.attachAsset('towerBase', {
@@ -97,13 +125,16 @@
 // Game variables
 // Initialize assets for the tower dodge flight game
 var aircraft;
 var towers = [];
+var finishLine = null;
+var showingMenu = false;
 var currentLevel = storage.currentLevel || 1;
 var levelScore = 0;
 var towersToComplete = 5; // Fewer towers needed for level 1
 var towerSpawnTimer = 0;
 var gameStarted = false;
+var menuContainer = null;
 // UI Elements
 var levelText = new Text2('Level: 1', {
 	size: 60,
 	fill: 0xFFFFFF
@@ -166,20 +197,145 @@
 	bottomTower.y = gapPosition + gapSize + (2732 - gapPosition - gapSize) / 2;
 	bottomTower.lastIntersecting = false;
 	towers.push(bottomTower);
 }
+// Function to spawn finish line
+function spawnFinishLine() {
+	if (finishLine) return; // Don't spawn if already exists
+	finishLine = game.addChild(new FinishLine());
+	finishLine.x = 2500; // Start further right than towers
+	finishLine.y = 1366; // Center vertically
+	finishLine.lastIntersecting = false;
+}
+// Function to create level completion menu
+function createLevelMenu() {
+	showingMenu = true;
+	menuContainer = new Container();
+	game.addChild(menuContainer);
+	// Semi-transparent background
+	var menuBg = LK.getAsset('towerBase', {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		scaleX: 8,
+		scaleY: 2,
+		alpha: 0.8
+	});
+	menuBg.x = 1024;
+	menuBg.y = 1366;
+	menuContainer.addChild(menuBg);
+	// Title text
+	var titleText = new Text2('Level ' + currentLevel + ' Complete!', {
+		size: 80,
+		fill: 0xFFFFFF
+	});
+	titleText.anchor.set(0.5, 0.5);
+	titleText.x = 1024;
+	titleText.y = 1200;
+	menuContainer.addChild(titleText);
+	// Retry button
+	var retryText = new Text2('Retry Level', {
+		size: 60,
+		fill: 0x00FF00
+	});
+	retryText.anchor.set(0.5, 0.5);
+	retryText.x = 1024;
+	retryText.y = 1300;
+	retryText.interactive = true;
+	retryText.down = function () {
+		restartCurrentLevel();
+	};
+	menuContainer.addChild(retryText);
+	// Next level button
+	var nextText = new Text2('Next Level', {
+		size: 60,
+		fill: 0x0080FF
+	});
+	nextText.anchor.set(0.5, 0.5);
+	nextText.x = 1024;
+	nextText.y = 1400;
+	nextText.interactive = true;
+	nextText.down = function () {
+		goToNextLevel();
+	};
+	menuContainer.addChild(nextText);
+	// Return to level 1 button
+	var returnText = new Text2('Return to Level 1', {
+		size: 60,
+		fill: 0xFF8000
+	});
+	returnText.anchor.set(0.5, 0.5);
+	returnText.x = 1024;
+	returnText.y = 1500;
+	returnText.interactive = true;
+	returnText.down = function () {
+		returnToLevel1();
+	};
+	menuContainer.addChild(returnText);
+}
+// Function to restart current level
+function restartCurrentLevel() {
+	hideMenu();
+	levelScore = 0;
+	// Clear existing towers and finish line
+	clearLevel();
+	// Reset aircraft position
+	aircraft.x = 300;
+	aircraft.y = 1366;
+	// Update UI
+	progressText.setText('Progress: 0/' + towersToComplete);
+}
+// Function to go to next level
+function goToNextLevel() {
+	hideMenu();
+	completeLevel();
+}
+// Function to return to level 1
+function returnToLevel1() {
+	hideMenu();
+	currentLevel = 1;
+	storage.currentLevel = 1;
+	levelScore = 0;
+	towersToComplete = 5;
+	// Clear existing towers and finish line
+	clearLevel();
+	// Reset aircraft position
+	aircraft.x = 300;
+	aircraft.y = 1366;
+	// Update UI
+	levelText.setText('Level: ' + currentLevel);
+	progressText.setText('Progress: 0/' + towersToComplete);
+}
+// Function to hide menu
+function hideMenu() {
+	if (menuContainer) {
+		menuContainer.destroy();
+		menuContainer = null;
+	}
+	showingMenu = false;
+	gameStarted = true;
+}
+// Function to clear level objects
+function clearLevel() {
+	// Clear existing towers
+	for (var i = towers.length - 1; i >= 0; i--) {
+		towers[i].destroy();
+		towers.splice(i, 1);
+	}
+	// Clear finish line
+	if (finishLine) {
+		finishLine.destroy();
+		finishLine = null;
+	}
+}
 // Function to complete level
 function completeLevel() {
 	currentLevel++;
 	// Save progress to storage
 	storage.currentLevel = currentLevel;
 	levelScore = 0;
 	towersToComplete = Math.min(15, 5 + currentLevel * 2); // Start with 5, increase by 2 each level
-	// Clear existing towers
-	for (var i = towers.length - 1; i >= 0; i--) {
-		towers[i].destroy();
-		towers.splice(i, 1);
-	}
+	// Clear existing towers and finish line
+	clearLevel();
 	// Reset aircraft position
 	aircraft.x = 300;
 	aircraft.y = 1366;
 	// Update UI
@@ -197,14 +353,33 @@
 	LK.showGameOver();
 }
 // Main game update loop
 game.update = function () {
-	if (!gameStarted) return;
+	if (!gameStarted || showingMenu) return;
 	// Spawn towers based on level difficulty
 	var spawnRate = Math.max(90, 180 - currentLevel * 15); // Slower spawning, especially for level 1
 	if (LK.ticks % spawnRate === 0) {
 		spawnTower();
 	}
+	// Check if we should spawn finish line
+	var progress = Math.floor(levelScore / 2);
+	if (progress >= towersToComplete && !finishLine) {
+		spawnFinishLine();
+	}
+	// Update finish line
+	if (finishLine) {
+		// Check if finish line went off screen
+		if (finishLine.lastX >= -200 && finishLine.x < -200) {
+			finishLine.destroy();
+			finishLine = null;
+		}
+		// Check if aircraft crossed finish line
+		if (!finishLine.crossed && finishLine.x < aircraft.x) {
+			finishLine.crossed = true;
+			createLevelMenu();
+			return;
+		}
+	}
 	// Update towers
 	for (var i = towers.length - 1; i >= 0; i--) {
 		var tower = towers[i];
 		// Check if tower went off screen
@@ -229,12 +404,8 @@
 			// Update progress
 			var progress = Math.floor(levelScore / 2); // Two towers per obstacle
 			progressText.setText('Progress: ' + progress + '/' + towersToComplete);
 			scoreText.setText('Score: ' + LK.getScore());
-			// Check level completion
-			if (progress >= towersToComplete) {
-				completeLevel();
-			}
 		}
 	}
 	// Aircraft stays stationary while towers move to create forward movement illusion
 };
\ No newline at end of file