/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");
var storage = LK.import("@upit/storage.v1", {
	currentBattle: 0,
	battlesWon: 0,
	totalUnits: 12
});

/**** 
* Classes
****/ 
var Bullet = Container.expand(function (startX, startY, targetX, targetY, owner) {
	var self = Container.call(this);
	self.owner = owner;
	self.speed = 8;
	self.active = true;
	var bulletGraphics = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.x = startX;
	self.y = startY;
	// Calculate direction
	var dx = targetX - startX;
	var dy = targetY - startY;
	var distance = Math.sqrt(dx * dx + dy * dy);
	self.velocityX = dx / distance * self.speed;
	self.velocityY = dy / distance * self.speed;
	self.update = function () {
		if (!self.active) return;
		self.x += self.velocityX;
		self.y += self.velocityY;
		// Remove if out of bounds
		if (self.x < -50 || self.x > 1850 || self.y < -50 || self.y > 1250) {
			self.active = false;
			self.destroy();
		}
	};
	return self;
});
var DialogSystem = Container.expand(function () {
	var self = Container.call(this);
	self.visible = false;
	self.currentDialogIndex = 0;
	self.dialogData = [];
	var dialogBg = self.attachAsset('dialogBox', {
		anchorX: 0.5,
		anchorY: 0
	});
	self.commanderText = new Text2('', {
		size: 40,
		fill: '#ffffff'
	});
	self.commanderText.anchor.set(0, 0);
	self.addChild(self.commanderText);
	self.continueText = new Text2('TAP TO CONTINUE', {
		size: 30,
		fill: '#ffff00'
	});
	self.continueText.anchor.set(0.5, 1);
	self.addChild(self.continueText);
	self.x = 2048 / 2;
	self.y = 2732 - 450;
	self.commanderText.x = -900;
	self.commanderText.y = 50;
	self.continueText.x = 0;
	self.continueText.y = -50;
	self.showDialog = function (dialogArray) {
		self.dialogData = dialogArray;
		self.currentDialogIndex = 0;
		self.visible = true;
		self.continueText.setText(t('tapToContinue'));
		self.displayCurrentDialog();
	};
	self.displayCurrentDialog = function () {
		if (self.currentDialogIndex < self.dialogData.length) {
			var currentText = self.dialogData[self.currentDialogIndex];
			self.commanderText.setText(currentText);
		}
	};
	self.nextDialog = function () {
		self.currentDialogIndex++;
		if (self.currentDialogIndex < self.dialogData.length) {
			self.displayCurrentDialog();
		} else {
			self.hideDialog();
		}
	};
	self.hideDialog = function () {
		self.visible = false;
		if (currentGameState === 'briefing') {
			startBattle();
		} else if (currentGameState === 'victory') {
			nextBattle();
		}
	};
	self.down = function (x, y, obj) {
		if (self.visible) {
			self.nextDialog();
		}
	};
	return self;
});
var Unit = Container.expand(function (type, subType, unitX, unitY) {
	var self = Container.call(this);
	self.unitType = type || 'soldier';
	self.subType = subType || 'soldier'; // 'soldier', 'tank', 'aircraft'
	self.health = self.subType === 'tank' ? 5 : self.subType === 'aircraft' ? 2 : 3;
	self.maxHealth = self.health;
	self.selected = false;
	self.hasMoved = false;
	self.hasFired = false;
	self.range = self.subType === 'tank' ? 300 : self.subType === 'aircraft' ? 400 : 150;
	// Choose appropriate asset based on type and subtype
	var assetName;
	if (type === 'enemy') {
		assetName = subType === 'tank' ? 'enemyTank' : subType === 'aircraft' ? 'enemyAircraft' : 'enemyUnit';
	} else {
		assetName = subType === 'tank' ? 'tankUnit' : subType === 'aircraft' ? 'aircraftUnit' : 'soldierUnit';
	}
	var unitGraphics = self.attachAsset(assetName, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.x = unitX || 0;
	self.y = unitY || 0;
	self.select = function () {
		// Simplified selection - no complex logic
		self.selected = true;
		unitGraphics.tint = 0x00ff00;
	};
	self.deselect = function () {
		self.selected = false;
		unitGraphics.tint = 0xffffff;
	};
	self.moveTo = function (targetX, targetY) {
		if (self.selected && !self.hasMoved) {
			tween(self, {
				x: targetX,
				y: targetY
			}, {
				duration: 800,
				easing: tween.easeOut,
				onFinish: function onFinish() {
					self.hasMoved = true;
					if (self.hasFired) {
						self.deselect();
						checkTurnComplete();
					}
				}
			});
			LK.getSound('unitMove').play();
		}
	};
	self.fireAt = function (targetX, targetY) {
		if (self.selected && !self.hasFired) {
			var distance = Math.sqrt(Math.pow(targetX - self.x, 2) + Math.pow(targetY - self.y, 2));
			if (distance <= self.range) {
				var bullet = new Bullet(self.x, self.y, targetX, targetY, self);
				bullets.push(bullet);
				battlefieldContainer.addChild(bullet);
				LK.getSound('bulletFire').play();
				// Visual feedback for firing
				LK.effects.flashObject(self, 0xffff00, 200);
				self.hasFired = true;
				if (self.hasMoved) {
					self.deselect();
					checkTurnComplete();
				}
			} else {
				// Out of range feedback
				LK.effects.flashObject(self, 0xff0000, 300);
			}
		}
	};
	self.takeDamage = function () {
		self.health--;
		if (self.health <= 0) {
			self.destroy();
			return true;
		}
		return false;
	};
	self.down = function (x, y, obj) {
		if (self.unitType !== 'enemy' && currentGameState === 'battle') {
			// Simple click to fire at closest enemy
			var closestEnemy = null;
			var closestDistance = Infinity;
			for (var i = 0; i < enemyUnits.length; i++) {
				var enemy = enemyUnits[i];
				if (enemy) {
					var distance = Math.sqrt(Math.pow(self.x - enemy.x, 2) + Math.pow(self.y - enemy.y, 2));
					if (distance < closestDistance) {
						closestDistance = distance;
						closestEnemy = enemy;
					}
				}
			}
			if (closestEnemy) {
				var bullet = new Bullet(self.x, self.y, closestEnemy.x, closestEnemy.y, self);
				bullets.push(bullet);
				battlefieldContainer.addChild(bullet);
				LK.getSound('bulletFire').play();
				LK.effects.flashObject(self, 0xffff00, 200);
			}
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x2c5234
});

/**** 
* Game Code
****/ 
var currentGameState = 'language_selection'; // 'language_selection', 'briefing', 'battle', 'victory', 'complete'
var currentBattle = storage.currentBattle || 0;
var battlesWon = storage.battlesWon || 0;
var languageSelectionContainer;
var selectedUnit = null;
var playerUnits = [];
var enemyUnits = [];
var objectives = [];
var bullets = [];
var turnComplete = false;
var currentLanguage = storage.language || 'en'; // 'en' or 'tr'
// Translation system
var translations = {
	en: {
		battlesWon: 'Battles Won: ',
		tapToContinue: 'TAP TO CONTINUE',
		beachLanding: 'Beach Landing',
		forestPatrol: 'Forest Patrol',
		urbanWarfare: 'Urban Warfare',
		battle: 'Battle',
		languageButton: 'TR'
	},
	tr: {
		battlesWon: 'Kazanılan Savaşlar: ',
		tapToContinue: 'DEVAM İÇİN DOKUN',
		beachLanding: 'Sahil Çıkarması',
		forestPatrol: 'Orman Devriyesi',
		urbanWarfare: 'Şehir Savaşı',
		battle: 'Savaş',
		languageButton: 'EN'
	}
};
function t(key) {
	return translations[currentLanguage][key] || translations.en[key] || key;
}
// Battle configurations
var battleConfigs = [{
	name: {
		en: "Beach Landing",
		tr: "Sahil Çıkarması"
	},
	briefing: {
		en: ["Commander: Welcome to Operation Overlord, soldier!", "Your mission: Secure the beach and eliminate enemy resistance.", "Move your units carefully - the enemy has defensive positions.", "TAP units to select, then TAP destination to move or fire. Good luck!"],
		tr: ["Komutan: Overlord Harekâtına hoş geldin asker!", "Görevin: Sahili ele geçir ve düşman direncini yok et.", "Birliklerini dikkatli hareket ettir - düşmanın savunma mevzileri var.", "Birlikleri seçmek için DOKUN, hareket veya ateş etmek için tekrar DOKUN. İyi şanslar!"]
	},
	playerStartPositions: [[200, 800, 'soldier'], [200, 900, 'soldier'], [200, 1000, 'tank']],
	enemyPositions: [[1600, 400, 'soldier'], [1600, 600, 'tank']],
	objectivePos: [1600, 500]
}, {
	name: {
		en: "Tank Assault",
		tr: "Tank Saldırısı"
	},
	briefing: {
		en: ["Heavy armor engagement ahead!", "Use your tanks to break enemy lines.", "Coordinate infantry and armor for maximum effect!"],
		tr: ["Ağır zırhlı çatışma yaklaşıyor!", "Düşman hatlarını kırmak için tanklarını kullan.", "Maksimum etki için piyade ve zırhı koordine et!"]
	},
	playerStartPositions: [[300, 1000, 'tank'], [400, 1000, 'soldier'], [500, 1000, 'tank']],
	enemyPositions: [[1400, 300, 'tank'], [1500, 500, 'soldier'], [1300, 700, 'tank']],
	objectivePos: [1450, 400]
}, {
	name: {
		en: "Air Superiority",
		tr: "Hava Üstünlüğü"
	},
	briefing: {
		en: ["Control the skies soldier!", "Aircraft have superior range but less armor.", "Use hit and run tactics with air units!"],
		tr: ["Gökleri kontrol et asker!", "Uçakların menzili üstün ama zırhı az.", "Hava birlikleriyle vur-kaç taktiği kullan!"]
	},
	playerStartPositions: [[150, 1100, 'aircraft'], [250, 1100, 'soldier'], [350, 1100, 'aircraft']],
	enemyPositions: [[1500, 200, 'aircraft'], [1400, 400, 'tank'], [1600, 600, 'aircraft']],
	objectivePos: [1500, 350]
}, {
	name: {
		en: "Combined Arms",
		tr: "Birleşik Kuvvetler"
	},
	briefing: {
		en: ["All unit types in action!", "Coordinate soldiers, tanks, and aircraft.", "Each unit has unique strengths - use them wisely!"],
		tr: ["Tüm birlik türleri harekete geçiyor!", "Asker, tank ve uçakları koordine et.", "Her birliğin benzersiz gücü var - akıllıca kullan!"]
	},
	playerStartPositions: [[200, 1000, 'soldier'], [300, 1000, 'tank'], [400, 1000, 'aircraft'], [500, 1000, 'soldier']],
	enemyPositions: [[1400, 300, 'tank'], [1500, 400, 'aircraft'], [1600, 500, 'soldier'], [1300, 600, 'tank']],
	objectivePos: [1500, 400]
}];
// Extend battle configs to 10 battles
for (var i = 3; i < 10; i++) {
	var baseConfig = battleConfigs[i % 3];
	battleConfigs.push({
		name: {
			en: "Battle " + (i + 1),
			tr: "Savaş " + (i + 1)
		},
		briefing: {
			en: ["Commander: Battle " + (i + 1) + " awaits!", "The enemy grows stronger with each encounter.", "Use everything you've learned so far!"],
			tr: ["Komutan: Savaş " + (i + 1) + " seni bekliyor!", "Düşman her karşılaşmada daha da güçleniyor.", "Şimdiye kadar öğrendiğin her şeyi kullan!"]
		},
		playerStartPositions: baseConfig.playerStartPositions,
		enemyPositions: baseConfig.enemyPositions,
		objectivePos: baseConfig.objectivePos
	});
}
// UI Elements
var battlefieldContainer = game.addChild(new Container());
var battlefield = battlefieldContainer.attachAsset('battlefield', {
	anchorX: 0.5,
	anchorY: 0.5
});
battlefieldContainer.x = 2048 / 2;
battlefieldContainer.y = (2732 - 400) / 2;
var dialogSystem = game.addChild(new DialogSystem());
var battleTitle = new Text2('', {
	size: 60,
	fill: '#ffffff'
});
battleTitle.anchor.set(0.5, 0);
LK.gui.top.addChild(battleTitle);
battleTitle.y = 100;
var scoreText = new Text2('Battles Won: 0/10', {
	size: 40,
	fill: '#ffffff'
});
scoreText.anchor.set(1, 0);
LK.gui.topRight.addChild(scoreText);
scoreText.x = -20;
scoreText.y = 20;
// Language toggle button
var langButton = new Text2(t('languageButton'), {
	size: 40,
	fill: '#ffffff'
});
langButton.anchor.set(0.5, 0);
LK.gui.topRight.addChild(langButton);
langButton.x = -60;
langButton.y = 80;
langButton.interactive = true;
langButton.buttonMode = true;
langButton.on('pointerdown', function () {
	currentLanguage = currentLanguage === 'en' ? 'tr' : 'en';
	storage.language = currentLanguage;
	langButton.setText(t('languageButton'));
	updateScoreDisplay();
	// Update dialog continue text
	dialogSystem.continueText.setText(t('tapToContinue'));
	// Update battle title if currently displayed
	var config = battleConfigs[currentBattle];
	if (config) {
		battleTitle.setText(config.name[currentLanguage]);
	}
});
// Game Functions
function startGame() {
	currentGameState = 'briefing';
	if (languageSelectionContainer) {
		languageSelectionContainer.destroy();
	}
	battlefieldContainer.visible = true;
	battleTitle.visible = true;
	scoreText.visible = true;
	langButton.visible = true;
	dialogSystem.visible = true;
	// Update UI text with selected language
	langButton.setText(t('languageButton'));
	dialogSystem.continueText.setText(t('tapToContinue'));
	// Initialize first battle
	setupBattle();
	updateScoreDisplay();
	var firstBriefing = battleConfigs[currentBattle].briefing[currentLanguage];
	dialogSystem.showDialog(firstBriefing);
}
function clearAllSelections() {
	selectedUnit = null;
	for (var i = 0; i < playerUnits.length; i++) {
		playerUnits[i].deselect();
	}
}
function setupBattle() {
	// Clear previous battle
	for (var i = playerUnits.length - 1; i >= 0; i--) {
		playerUnits[i].destroy();
	}
	for (var i = enemyUnits.length - 1; i >= 0; i--) {
		enemyUnits[i].destroy();
	}
	for (var i = objectives.length - 1; i >= 0; i--) {
		objectives[i].destroy();
	}
	playerUnits = [];
	enemyUnits = [];
	objectives = [];
	var config = battleConfigs[currentBattle];
	battleTitle.setText(config.name[currentLanguage]);
	// Create player units
	for (var i = 0; i < config.playerStartPositions.length; i++) {
		var pos = config.playerStartPositions[i];
		var unitSubType = pos[2] || 'soldier';
		var unit = new Unit('player', unitSubType, pos[0], pos[1]);
		playerUnits.push(unit);
		battlefieldContainer.addChild(unit);
	}
	// Create enemy units at top of screen
	for (var i = 0; i < config.enemyPositions.length; i++) {
		var pos = config.enemyPositions[i];
		var unitSubType = pos[2] || 'soldier';
		// Position enemies at top area of screen with spread positions
		var enemyX = 400 + i * 300 + Math.random() * 150;
		var enemyY = 50 + Math.random() * 100; // Top area only
		var enemy = new Unit('enemy', unitSubType, enemyX, enemyY);
		enemyUnits.push(enemy);
		battlefieldContainer.addChild(enemy);
	}
	// Create objective
	var objPos = config.objectivePos;
	var objective = battlefieldContainer.attachAsset('objective', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: objPos[0],
		y: objPos[1]
	});
	objectives.push(objective);
}
function checkTurnComplete() {
	// Simplified - just check victory condition
	if (checkVictoryCondition()) {
		handleVictory();
	}
}
function checkVictoryCondition() {
	if (enemyUnits.length === 0) return true;
	// Check if any player unit is near objective
	for (var i = 0; i < playerUnits.length; i++) {
		var unit = playerUnits[i];
		var objective = objectives[0];
		var distance = Math.sqrt(Math.pow(unit.x - objective.x, 2) + Math.pow(unit.y - objective.y, 2));
		if (distance < 120) {
			return true;
		}
	}
	return false;
}
function handleVictory() {
	battlesWon++;
	storage.battlesWon = battlesWon;
	storage.currentBattle = currentBattle + 1;
	LK.getSound('battleWin').play();
	updateScoreDisplay();
	if (currentBattle >= 9) {
		// Won all 10 battles
		currentGameState = 'complete';
		var completeMessages = currentLanguage === 'en' ? ["Commander: Outstanding work, soldier!", "You have successfully completed all 10 battles!", "The war is won thanks to your strategic brilliance!", "You are a true military commander!"] : ["Komutan: Olağanüstü iş başardın asker!", "10 savaşın tamamını başarıyla tamamladın!", "Savaş senin stratejik dehanla kazanıldı!", "Sen gerçek bir askeri komutansın!"];
		dialogSystem.showDialog(completeMessages);
		LK.showYouWin();
	} else {
		currentGameState = 'victory';
		var victoryMessages = currentLanguage === 'en' ? ["Commander: Excellent work! Battle won!", "Your tactical skills are improving with each victory.", "Prepare for the next engagement, soldier."] : ["Komutan: Mükemmel iş! Savaş kazanıldı!", "Taktik yeteneklerin her zaferle gelişiyor.", "Bir sonraki çatışmaya hazırlan asker."];
		dialogSystem.showDialog(victoryMessages);
	}
}
function nextBattle() {
	currentBattle++;
	if (currentBattle < 10) {
		currentGameState = 'briefing';
		setupBattle();
		var config = battleConfigs[currentBattle];
		dialogSystem.showDialog(config.briefing[currentLanguage]);
	}
}
function startBattle() {
	currentGameState = 'battle';
}
function updateScoreDisplay() {
	scoreText.setText(t('battlesWon') + battlesWon + '/10');
}
// Mouse/Touch handling - simplified
battlefieldContainer.down = function (x, y, obj) {
	if (currentGameState !== 'battle') return;
	// No complex battlefield interaction needed
};
function initializeLanguageSelection() {
	// Hide main game UI
	battlefieldContainer.visible = false;
	battleTitle.visible = false;
	scoreText.visible = false;
	langButton.visible = false;
	dialogSystem.visible = false;
	// Setup selection screen
	languageSelectionContainer = new Container();
	languageSelectionContainer.x = 2048 / 2;
	languageSelectionContainer.y = 2732 / 2;
	game.addChild(languageSelectionContainer);
	var title = new Text2('Select Language / Dil Seçiniz', {
		size: 70,
		fill: '#ffffff',
		align: 'center'
	});
	title.anchor.set(0.5, 0.5);
	title.y = -350;
	languageSelectionContainer.addChild(title);
	var btnEn = LK.getAsset('flag_en', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	btnEn.y = -100;
	btnEn.interactive = true;
	btnEn.buttonMode = true;
	btnEn.down = function () {
		currentLanguage = 'en';
		storage.language = 'en';
		startGame();
	};
	languageSelectionContainer.addChild(btnEn);
	var btnTr = LK.getAsset('flag_tr', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	btnTr.y = 200;
	btnTr.interactive = true;
	btnTr.buttonMode = true;
	btnTr.down = function () {
		currentLanguage = 'tr';
		storage.language = 'tr';
		startGame();
	};
	languageSelectionContainer.addChild(btnTr);
}
initializeLanguageSelection();
game.update = function () {
	if (currentGameState === 'language_selection') return;
	// Update bullets
	for (var i = bullets.length - 1; i >= 0; i--) {
		var bullet = bullets[i];
		if (bullet && bullet.active) {
			// Check bullet collisions with enemy units (player bullets)
			if (bullet.owner && bullet.owner.unitType !== 'enemy') {
				for (var j = 0; j < enemyUnits.length; j++) {
					var enemy = enemyUnits[j];
					if (enemy) {
						var distance = Math.sqrt(Math.pow(bullet.x - enemy.x, 2) + Math.pow(bullet.y - enemy.y, 2));
						if (distance < 50) {
							if (enemy.takeDamage()) {
								enemy.destroy();
								enemyUnits.splice(j, 1);
							}
							bullet.active = false;
							bullet.destroy();
							bullets.splice(i, 1);
							LK.getSound('unitAttack').play();
							break;
						}
					}
				}
			}
			// Check bullet collisions with player units (enemy bullets)
			if (bullet && bullet.active && bullet.owner && bullet.owner.unitType === 'enemy') {
				for (var j = 0; j < playerUnits.length; j++) {
					var player = playerUnits[j];
					if (player) {
						var distance = Math.sqrt(Math.pow(bullet.x - player.x, 2) + Math.pow(bullet.y - player.y, 2));
						if (distance < 50) {
							if (player.takeDamage()) {
								player.destroy();
								playerUnits.splice(j, 1);
							}
							bullet.active = false;
							bullet.destroy();
							bullets.splice(i, 1);
							LK.getSound('unitAttack').play();
							break;
						}
					}
				}
			}
		} else if (bullet && !bullet.active) {
			bullets.splice(i, 1);
		}
	}
	// Simplified auto-fire - no restrictions
	if (currentGameState === 'battle' && LK.ticks % 90 === 0) {
		for (var i = 0; i < playerUnits.length; i++) {
			var unit = playerUnits[i];
			if (unit) {
				// Find closest enemy to auto-fire at
				var closestEnemy = null;
				var closestDistance = Infinity;
				for (var j = 0; j < enemyUnits.length; j++) {
					var enemy = enemyUnits[j];
					if (enemy) {
						var distance = Math.sqrt(Math.pow(unit.x - enemy.x, 2) + Math.pow(unit.y - enemy.y, 2));
						if (distance < closestDistance) {
							closestDistance = distance;
							closestEnemy = enemy;
						}
					}
				}
				// Auto-fire at closest enemy
				if (closestEnemy) {
					var bullet = new Bullet(unit.x, unit.y, closestEnemy.x, closestEnemy.y, unit);
					bullets.push(bullet);
					battlefieldContainer.addChild(bullet);
					LK.getSound('bulletFire').play();
					LK.effects.flashObject(unit, 0xffff00, 200);
				}
			}
		}
	}
	// Enhanced AI for enemies - horizontal movement and firing from top area only
	if (currentGameState === 'battle' && LK.ticks % 90 === 0 && enemyUnits.length > 0) {
		for (var i = 0; i < enemyUnits.length; i++) {
			var enemy = enemyUnits[i];
			if (enemy && playerUnits.length > 0) {
				var targetPlayer = playerUnits[Math.floor(Math.random() * playerUnits.length)];
				var distance = Math.sqrt(Math.pow(targetPlayer.x - enemy.x, 2) + Math.pow(targetPlayer.y - enemy.y, 2));
				// Fire if in range
				if (distance <= enemy.range) {
					var bullet = new Bullet(enemy.x, enemy.y, targetPlayer.x, targetPlayer.y, enemy);
					bullets.push(bullet);
					battlefieldContainer.addChild(bullet);
					LK.getSound('bulletFire').play();
				}
				// Move horizontally only (left or right) and stay in top area
				var moveDirection = Math.random() > 0.5 ? 1 : -1;
				var moveX = enemy.x + moveDirection * 120;
				// Keep within battlefield bounds horizontally
				if (moveX < 200) moveX = 200;
				if (moveX > 1600) moveX = 1600;
				// Ensure they stay in top area (no downward movement)
				var topAreaY = 50 + Math.random() * 100;
				tween(enemy, {
					x: moveX,
					y: topAreaY
				}, {
					duration: 1000,
					easing: tween.easeOut
				});
			}
		}
	}
	// Check for close combat (melee when units are very close)
	if (currentGameState === 'battle' && LK.ticks % 60 === 0) {
		for (var i = playerUnits.length - 1; i >= 0; i--) {
			for (var j = enemyUnits.length - 1; j >= 0; j--) {
				if (playerUnits[i] && enemyUnits[j]) {
					var player = playerUnits[i];
					var enemy = enemyUnits[j];
					var distance = Math.sqrt(Math.pow(player.x - enemy.x, 2) + Math.pow(player.y - enemy.y, 2));
					if (distance < 80) {
						LK.getSound('unitAttack').play();
						if (Math.random() > 0.5) {
							if (enemy.takeDamage()) {
								enemyUnits.splice(j, 1);
							}
						} else {
							if (player.takeDamage()) {
								playerUnits.splice(i, 1);
							}
						}
						// Check game over condition
						if (playerUnits.length === 0) {
							LK.showGameOver();
						}
					}
				}
			}
		}
	}
};

===================================================================
--- original.js
+++ change.js
@@ -423,11 +423,11 @@
 	// Create enemy units at top of screen
 	for (var i = 0; i < config.enemyPositions.length; i++) {
 		var pos = config.enemyPositions[i];
 		var unitSubType = pos[2] || 'soldier';
-		// Position enemies at top of screen with random X positions
-		var enemyX = 300 + i * 200 + Math.random() * 100;
-		var enemyY = 100; // Top of screen
+		// Position enemies at top area of screen with spread positions
+		var enemyX = 400 + i * 300 + Math.random() * 150;
+		var enemyY = 50 + Math.random() * 100; // Top area only
 		var enemy = new Unit('enemy', unitSubType, enemyX, enemyY);
 		enemyUnits.push(enemy);
 		battlefieldContainer.addChild(enemy);
 	}
@@ -624,9 +624,9 @@
 				}
 			}
 		}
 	}
-	// Enhanced AI for enemies - horizontal movement and firing from top
+	// Enhanced AI for enemies - horizontal movement and firing from top area only
 	if (currentGameState === 'battle' && LK.ticks % 90 === 0 && enemyUnits.length > 0) {
 		for (var i = 0; i < enemyUnits.length; i++) {
 			var enemy = enemyUnits[i];
 			if (enemy && playerUnits.length > 0) {
@@ -638,18 +638,21 @@
 					bullets.push(bullet);
 					battlefieldContainer.addChild(bullet);
 					LK.getSound('bulletFire').play();
 				}
-				// Move horizontally only (left or right)
+				// Move horizontally only (left or right) and stay in top area
 				var moveDirection = Math.random() > 0.5 ? 1 : -1;
-				var moveX = enemy.x + moveDirection * 100;
-				// Keep within battlefield bounds
-				if (moveX < 100) moveX = 100;
-				if (moveX > 1700) moveX = 1700;
+				var moveX = enemy.x + moveDirection * 120;
+				// Keep within battlefield bounds horizontally
+				if (moveX < 200) moveX = 200;
+				if (moveX > 1600) moveX = 1600;
+				// Ensure they stay in top area (no downward movement)
+				var topAreaY = 50 + Math.random() * 100;
 				tween(enemy, {
-					x: moveX
+					x: moveX,
+					y: topAreaY
 				}, {
-					duration: 800,
+					duration: 1000,
 					easing: tween.easeOut
 				});
 			}
 		}