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

/**** 
* Classes
****/ 
var Bullet = Container.expand(function (tower, target, towerType) {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.tower = tower;
	self.target = target;
	self.towerType = towerType;
	self.speed = 8;
	// Calculate direction from tower to target
	var dx = target.x - tower.x;
	var dy = target.y - tower.y;
	var distance = Math.sqrt(dx * dx + dy * dy);
	self.vx = dx / distance * self.speed;
	self.vy = dy / distance * self.speed;
	self.update = function () {
		self.x += self.vx;
		self.y += self.vy;
		// Check collision with intended target only
		if (self.target && self.target.parent && self.intersects(self.target)) {
			self.hit();
			return;
		}
		// Remove bullet if target is destroyed
		if (!self.target || !self.target.parent) {
			self.destroy();
			for (var i = bullets.length - 1; i >= 0; i--) {
				if (bullets[i] === self) {
					bullets.splice(i, 1);
					break;
				}
			}
			return;
		}
		// Remove if off screen
		if (self.x < -100 || self.x > 2148 || self.y < -100 || self.y > 2832) {
			self.destroy();
			for (var i = bullets.length - 1; i >= 0; i--) {
				if (bullets[i] === self) {
					bullets.splice(i, 1);
					break;
				}
			}
		}
	};
	self.hit = function () {
		LK.getSound('hit').play();
		if (self.towerType === 'splash') {
			// Splash damage
			for (var i = enemies.length - 1; i >= 0; i--) {
				var enemy = enemies[i];
				if (enemy && enemy.parent) {
					var dx = enemy.x - self.x;
					var dy = enemy.y - self.y;
					var distance = Math.sqrt(dx * dx + dy * dy);
					if (distance <= self.tower.splashRadius) {
						var killed = enemy.takeDamage(self.tower.damage);
						if (killed) {
							coins += enemy.reward;
							enemy.destroy();
							enemies.splice(i, 1);
						}
					}
				}
			}
			// Create explosion effect
			var explosion = LK.getAsset('explosion', {
				anchorX: 0.5,
				anchorY: 0.5
			});
			explosion.x = self.x;
			explosion.y = self.y;
			explosion.alpha = 0.7;
			game.addChild(explosion);
			tween(explosion, {
				scaleX: 2,
				scaleY: 2,
				alpha: 0
			}, {
				duration: 300,
				onFinish: function onFinish() {
					explosion.destroy();
				}
			});
		} else {
			// Regular damage
			if (self.target && self.target.parent) {
				var killed = self.target.takeDamage(self.tower.damage);
				if (killed) {
					coins += self.target.reward;
					self.target.destroy();
					var targetIndex = enemies.indexOf(self.target);
					if (targetIndex !== -1) {
						enemies.splice(targetIndex, 1);
					}
				}
				// Apply slow effect if slow tower
				if (self.towerType === 'slow' && !killed) {
					self.target.applySlow(self.tower.slowFactor, self.tower.slowDuration);
				}
			}
		}
		// Remove bullet
		self.destroy();
		for (var i = bullets.length - 1; i >= 0; i--) {
			if (bullets[i] === self) {
				bullets.splice(i, 1);
				break;
			}
		}
	};
	return self;
});
// Game variables
var Enemy = Container.expand(function (type, pathIndex) {
	var self = Container.call(this);
	// Enemy properties based on type
	var enemyConfig = {
		basic: {
			asset: 'basicEnemy',
			health: 100,
			speed: 2,
			reward: 10
		},
		fast: {
			asset: 'fastEnemy',
			health: 60,
			speed: 4,
			reward: 15
		},
		tank: {
			asset: 'tankEnemy',
			health: 300,
			speed: 1,
			reward: 25
		},
		boss: {
			asset: 'tankEnemy',
			health: 1000,
			speed: 1.5,
			reward: 100
		}
	};
	var config = enemyConfig[type] || enemyConfig.basic;
	var enemyGraphics = self.attachAsset(config.asset, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.maxHealth = config.health;
	self.health = config.health;
	self.speed = config.speed;
	self.reward = config.reward;
	self.pathIndex = pathIndex || 0;
	self.slowEffect = 1;
	self.slowDuration = 0;
	// Health bar
	var healthBarBg = LK.getAsset('pathTile', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 0.6,
		scaleY: 0.1,
		y: -40
	});
	healthBarBg.tint = 0x333333;
	self.addChild(healthBarBg);
	var healthBar = LK.getAsset('pathTile', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 0.6,
		scaleY: 0.1,
		y: -40
	});
	healthBar.tint = 0x00FF00;
	self.addChild(healthBar);
	self.healthBar = healthBar;
	self.takeDamage = function (damage) {
		self.health -= damage;
		var healthPercent = Math.max(0, self.health / self.maxHealth);
		self.healthBar.scaleX = 0.6 * healthPercent;
		// Health bar color changes
		if (healthPercent > 0.6) {
			self.healthBar.tint = 0x00FF00;
		} else if (healthPercent > 0.3) {
			self.healthBar.tint = 0xFFFF00;
		} else {
			self.healthBar.tint = 0xFF0000;
		}
		// Flash effect
		tween(enemyGraphics, {
			tint: 0xFF0000
		}, {
			duration: 100,
			onFinish: function onFinish() {
				tween(enemyGraphics, {
					tint: 0xFFFFFF
				}, {
					duration: 100
				});
			}
		});
		return self.health <= 0;
	};
	self.applySlow = function (factor, duration) {
		self.slowEffect = Math.min(self.slowEffect, factor);
		self.slowDuration = Math.max(self.slowDuration, duration);
	};
	self.update = function () {
		// Update slow effect
		if (self.slowDuration > 0) {
			self.slowDuration--;
			if (self.slowDuration <= 0) {
				self.slowEffect = 1;
			}
		}
		// Move along path
		if (self.pathIndex < gamePath.length - 1 && gamePath[self.pathIndex + 1]) {
			var currentTarget = gamePath[self.pathIndex + 1];
			var dx = currentTarget.x - self.x;
			var dy = currentTarget.y - self.y;
			var distance = Math.sqrt(dx * dx + dy * dy);
			if (distance < 20) {
				self.pathIndex++;
				if (self.pathIndex >= gamePath.length - 1) {
					// Reached base
					baseHealth--;
					return;
				}
			} else {
				var moveSpeed = self.speed * self.slowEffect;
				self.x += dx / distance * moveSpeed;
				self.y += dy / distance * moveSpeed;
			}
		} else if (self.pathIndex >= gamePath.length - 1) {
			// Reached base
			baseHealth--;
			return;
		}
	};
	return self;
});
var Tower = Container.expand(function (type) {
	var self = Container.call(this);
	// Tower configurations
	var towerConfig = {
		basic: {
			asset: 'basicTower',
			damage: 25,
			range: 180,
			fireRate: 60,
			cost: 100,
			upgradeCost: 75
		},
		splash: {
			asset: 'splashTower',
			damage: 40,
			range: 150,
			fireRate: 90,
			cost: 200,
			upgradeCost: 150,
			splashRadius: 80
		},
		slow: {
			asset: 'slowTower',
			damage: 15,
			range: 200,
			fireRate: 45,
			cost: 150,
			upgradeCost: 100,
			slowFactor: 0.5,
			slowDuration: 120
		}
	};
	var config = towerConfig[type] || towerConfig.basic;
	var towerGraphics = self.attachAsset(config.asset, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.type = type;
	self.damage = config.damage;
	self.range = config.range;
	self.fireRate = config.fireRate;
	self.cost = config.cost;
	self.upgradeCost = config.upgradeCost;
	self.splashRadius = config.splashRadius;
	self.slowFactor = config.slowFactor;
	self.slowDuration = config.slowDuration;
	self.lastShot = 0;
	self.level = 1;
	// Range indicator (hidden by default)
	var rangeIndicator = LK.getAsset('pathTile', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: self.range / 50,
		scaleY: self.range / 50
	});
	rangeIndicator.tint = 0x00FF00;
	rangeIndicator.alpha = 0.2;
	rangeIndicator.visible = false;
	self.addChild(rangeIndicator);
	self.rangeIndicator = rangeIndicator;
	self.showRange = function () {
		self.rangeIndicator.visible = true;
	};
	self.hideRange = function () {
		self.rangeIndicator.visible = false;
	};
	self.canShoot = function () {
		return LK.ticks - self.lastShot >= self.fireRate;
	};
	self.findTarget = function () {
		var closestEnemy = null;
		var closestDistance = self.range;
		for (var i = 0; i < enemies.length; i++) {
			var enemy = enemies[i];
			if (enemy && enemy.parent) {
				var dx = enemy.x - self.x;
				var dy = enemy.y - self.y;
				var distance = Math.sqrt(dx * dx + dy * dy);
				if (distance <= self.range && distance < closestDistance) {
					closestEnemy = enemy;
					closestDistance = distance;
				}
			}
		}
		return closestEnemy;
	};
	self.shoot = function (target) {
		if (!self.canShoot()) return;
		self.lastShot = LK.ticks;
		// Create bullet
		var bullet = new Bullet(self, target, self.type);
		bullet.x = self.x;
		bullet.y = self.y;
		bullets.push(bullet);
		game.addChild(bullet);
		LK.getSound('shoot').play();
	};
	self.upgrade = function () {
		if (coins >= self.upgradeCost) {
			coins -= self.upgradeCost;
			self.level++;
			self.damage = Math.floor(self.damage * 1.5);
			self.range = Math.floor(self.range * 1.1);
			self.upgradeCost = Math.floor(self.upgradeCost * 1.8);
			// Update global tower info stats
			towerInfoStats[self.type].level = Math.max(towerInfoStats[self.type].level, self.level);
			towerInfoStats[self.type].damage = Math.max(towerInfoStats[self.type].damage, self.damage);
			towerInfoStats[self.type].upgradeCost = Math.max(towerInfoStats[self.type].upgradeCost, self.upgradeCost);
			// Visual upgrade effect
			tween(towerGraphics, {
				scaleX: 1.2,
				scaleY: 1.2
			}, {
				duration: 200,
				onFinish: function onFinish() {
					tween(towerGraphics, {
						scaleX: 1,
						scaleY: 1
					}, {
						duration: 200
					});
				}
			});
			// Update range indicator
			self.rangeIndicator.scaleX = self.range / 50;
			self.rangeIndicator.scaleY = self.range / 50;
			return true;
		}
		return false;
	};
	self.down = function (x, y, obj) {
		selectedTower = self;
		self.showRange();
	};
	self.update = function () {
		// Find target in range
		var target = self.findTarget();
		if (target) {
			// Rotate tower towards target
			var angle = Math.atan2(target.y - self.y, target.x - self.x);
			towerGraphics.rotation = angle;
			// Shoot if ready
			if (self.canShoot()) {
				self.shoot(target);
			}
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x4a6b3a
});

/**** 
* Game Code
****/ 
// Game variables
// Tower assets
// Enemy assets
// Game elements
// Sounds
var gamePath = [{
	x: 100,
	y: 400
}, {
	x: 500,
	y: 400
}, {
	x: 500,
	y: 800
}, {
	x: 900,
	y: 800
}, {
	x: 900,
	y: 1200
}, {
	x: 1400,
	y: 1200
}, {
	x: 1400,
	y: 1600
}, {
	x: 1800,
	y: 1600
}];
var enemies = [];
var towers = [];
var bullets = [];
var coins = 300;
var baseHealth = 20;
var currentWave = 1;
var enemiesSpawned = 0;
var enemiesPerWave = 5;
var waveDelay = 0;
var selectedTower = null;
var towerInfoPanel = null;
var bossWave = false;
var bossSpawned = false;
var pathExtensionFactor = 1.0;
var isInitialPath = true;
// Generate initial path using the path generation function
generateNewPath();
// Ensure gamePath has valid elements before creating base
if (!gamePath || gamePath.length === 0) {
	// Fallback path if generation failed
	gamePath = [{
		x: 100,
		y: 400
	}, {
		x: 1800,
		y: 1600
	}];
}
// Create base
var base = LK.getAsset('base', {
	anchorX: 0.5,
	anchorY: 0.5
});
base.x = gamePath[gamePath.length - 1].x;
base.y = gamePath[gamePath.length - 1].y;
game.addChild(base);
// Create baslangic image at spawn point
var baslangicImage = LK.getAsset('baslangic', {
	anchorX: 0.5,
	anchorY: 0.5
});
baslangicImage.x = gamePath[0].x;
baslangicImage.y = gamePath[0].y;
game.addChild(baslangicImage);
// UI Elements
var coinsText = new Text2('Coins: ' + coins, {
	size: 50,
	fill: 0xFFD700
});
coinsText.anchor.set(0, 0);
coinsText.x = 150;
coinsText.y = 20;
LK.gui.topLeft.addChild(coinsText);
var healthText = new Text2('Base Health: ' + baseHealth, {
	size: 50,
	fill: 0xFF0000
});
healthText.anchor.set(1, 0);
healthText.y = 20;
LK.gui.topRight.addChild(healthText);
var waveText = new Text2('Wave: ' + currentWave, {
	size: 50,
	fill: 0xFFFFFF
});
waveText.anchor.set(0.5, 0);
waveText.y = 20;
LK.gui.top.addChild(waveText);
// Tower selection buttons
var basicTowerImage = LK.getAsset('basicTower', {
	anchorX: 0.5,
	anchorY: 1,
	scaleX: 0.8,
	scaleY: 0.8
});
basicTowerImage.x = 60;
basicTowerImage.y = -20;
LK.gui.bottomLeft.addChild(basicTowerImage);
var basicTowerBtn = new Text2('Basic (100)', {
	size: 40,
	fill: 0x4444FF
});
basicTowerBtn.anchor.set(0, 1);
basicTowerBtn.x = 100;
basicTowerBtn.y = -20;
LK.gui.bottomLeft.addChild(basicTowerBtn);
var basicTowerInfo = new Text2('Level: 1 | DMG: 25 | Upgrade: 75', {
	size: 25,
	fill: 0xFFFFFF
});
basicTowerInfo.anchor.set(0, 1);
basicTowerInfo.x = 350;
basicTowerInfo.y = -20;
LK.gui.bottomLeft.addChild(basicTowerInfo);
var splashTowerImage = LK.getAsset('splashTower', {
	anchorX: 0.5,
	anchorY: 1,
	scaleX: 0.8,
	scaleY: 0.8
});
splashTowerImage.x = 60;
splashTowerImage.y = -80;
LK.gui.bottomLeft.addChild(splashTowerImage);
var splashTowerBtn = new Text2('Splash (200)', {
	size: 40,
	fill: 0xFF4444
});
splashTowerBtn.anchor.set(0, 1);
splashTowerBtn.x = 100;
splashTowerBtn.y = -80;
LK.gui.bottomLeft.addChild(splashTowerBtn);
var splashTowerInfo = new Text2('Level: 1 | DMG: 40 | Upgrade: 150', {
	size: 25,
	fill: 0xFFFFFF
});
splashTowerInfo.anchor.set(0, 1);
splashTowerInfo.x = 350;
splashTowerInfo.y = -80;
LK.gui.bottomLeft.addChild(splashTowerInfo);
var slowTowerImage = LK.getAsset('slowTower', {
	anchorX: 0.5,
	anchorY: 1,
	scaleX: 0.8,
	scaleY: 0.8
});
slowTowerImage.x = 60;
slowTowerImage.y = -140;
LK.gui.bottomLeft.addChild(slowTowerImage);
var slowTowerBtn = new Text2('Slow (150)', {
	size: 40,
	fill: 0x44FF44
});
slowTowerBtn.anchor.set(0, 1);
slowTowerBtn.x = 100;
slowTowerBtn.y = -140;
LK.gui.bottomLeft.addChild(slowTowerBtn);
var slowTowerInfo = new Text2('Level: 1 | DMG: 15 | Upgrade: 100', {
	size: 25,
	fill: 0xFFFFFF
});
slowTowerInfo.anchor.set(0, 1);
slowTowerInfo.x = 350;
slowTowerInfo.y = -140;
LK.gui.bottomLeft.addChild(slowTowerInfo);
// Add levelatla upgrade buttons
var basicLevelatlaBtn = LK.getAsset('levelatla', {
	anchorX: 0.5,
	anchorY: 0.5,
	scaleX: 0.3,
	scaleY: 0.3
});
basicLevelatlaBtn.x = 770;
basicLevelatlaBtn.y = -40;
LK.gui.bottomLeft.addChild(basicLevelatlaBtn);
var splashLevelatlaBtn = LK.getAsset('levelatla', {
	anchorX: 0.5,
	anchorY: 0.5,
	scaleX: 0.3,
	scaleY: 0.3
});
splashLevelatlaBtn.x = 770;
splashLevelatlaBtn.y = -100;
LK.gui.bottomLeft.addChild(splashLevelatlaBtn);
var slowLevelatlaBtn = LK.getAsset('levelatla', {
	anchorX: 0.5,
	anchorY: 0.5,
	scaleX: 0.3,
	scaleY: 0.3
});
slowLevelatlaBtn.x = 770;
slowLevelatlaBtn.y = -160;
LK.gui.bottomLeft.addChild(slowLevelatlaBtn);
// Selected tower type
var selectedTowerType = 'basic';
// Tower info tracking
var towerInfoStats = {
	basic: {
		level: 1,
		damage: 25,
		upgradeCost: 75
	},
	splash: {
		level: 1,
		damage: 40,
		upgradeCost: 150
	},
	slow: {
		level: 1,
		damage: 15,
		upgradeCost: 100
	}
};
// Add background highlights for tower selection
var basicTowerBg = LK.getAsset('pathTile', {
	anchorX: 0,
	anchorY: 0.5,
	scaleX: 8.0,
	scaleY: 0.8
});
basicTowerBg.tint = 0x00FF00;
basicTowerBg.alpha = 0.3;
basicTowerBg.x = 10;
basicTowerBg.y = -40;
LK.gui.bottomLeft.addChild(basicTowerBg);
var splashTowerBg = LK.getAsset('pathTile', {
	anchorX: 0,
	anchorY: 0.5,
	scaleX: 8.0,
	scaleY: 0.8
});
splashTowerBg.tint = 0x00FF00;
splashTowerBg.alpha = 0;
splashTowerBg.x = 10;
splashTowerBg.y = -100;
LK.gui.bottomLeft.addChild(splashTowerBg);
var slowTowerBg = LK.getAsset('pathTile', {
	anchorX: 0,
	anchorY: 0.5,
	scaleX: 8.0,
	scaleY: 0.8
});
slowTowerBg.tint = 0x00FF00;
slowTowerBg.alpha = 0;
slowTowerBg.x = 10;
slowTowerBg.y = -160;
LK.gui.bottomLeft.addChild(slowTowerBg);
// Helper functions
function updateUI() {
	coinsText.setText('Coins: ' + coins);
	healthText.setText('Base Health: ' + baseHealth);
	waveText.setText('Wave: ' + currentWave + (bossWave ? ' (BOSS)' : ''));
	// Update button colors based on affordability
	basicTowerBtn.tint = coins >= 100 ? 0x4444FF : 0x666666;
	splashTowerBtn.tint = coins >= 200 ? 0xFF4444 : 0x666666;
	slowTowerBtn.tint = coins >= 150 ? 0x44FF44 : 0x666666;
	// Update tower info displays
	basicTowerInfo.setText('Level: ' + towerInfoStats.basic.level + ' | DMG: ' + towerInfoStats.basic.damage + ' | Upgrade: ' + towerInfoStats.basic.upgradeCost);
	splashTowerInfo.setText('Level: ' + towerInfoStats.splash.level + ' | DMG: ' + towerInfoStats.splash.damage + ' | Upgrade: ' + towerInfoStats.splash.upgradeCost);
	slowTowerInfo.setText('Level: ' + towerInfoStats.slow.level + ' | DMG: ' + towerInfoStats.slow.damage + ' | Upgrade: ' + towerInfoStats.slow.upgradeCost);
	// Update tower selection highlighting
	basicTowerBg.alpha = selectedTowerType === 'basic' ? 0.3 : 0;
	splashTowerBg.alpha = selectedTowerType === 'splash' ? 0.3 : 0;
	slowTowerBg.alpha = selectedTowerType === 'slow' ? 0.3 : 0;
	// Add pulsing animation to selected tower
	var selectedBg = selectedTowerType === 'basic' ? basicTowerBg : selectedTowerType === 'splash' ? splashTowerBg : slowTowerBg;
	if (selectedBg.alpha > 0) {
		var pulseAlpha = 0.3 + Math.sin(LK.ticks * 0.1) * 0.1;
		selectedBg.alpha = pulseAlpha;
	}
	// Show/hide levelatla buttons based on available coins
	basicLevelatlaBtn.visible = coins >= towerInfoStats.basic.upgradeCost;
	splashLevelatlaBtn.visible = coins >= towerInfoStats.splash.upgradeCost;
	slowLevelatlaBtn.visible = coins >= towerInfoStats.slow.upgradeCost;
}
function canPlaceTower(x, y) {
	// Check if position is not on path points
	for (var i = 0; i < gamePath.length; i++) {
		var pathPoint = gamePath[i];
		var distance = Math.sqrt((x - pathPoint.x) * (x - pathPoint.x) + (y - pathPoint.y) * (y - pathPoint.y));
		if (distance < 80) {
			return false;
		}
	}
	// Check if position is not on path segments
	for (var i = 0; i < gamePath.length - 1; i++) {
		var startPoint = gamePath[i];
		var endPoint = gamePath[i + 1];
		// Calculate distance from point to line segment
		var A = x - startPoint.x;
		var B = y - startPoint.y;
		var C = endPoint.x - startPoint.x;
		var D = endPoint.y - startPoint.y;
		var dot = A * C + B * D;
		var lenSq = C * C + D * D;
		var param = lenSq != 0 ? dot / lenSq : -1;
		var xx, yy;
		if (param < 0) {
			xx = startPoint.x;
			yy = startPoint.y;
		} else if (param > 1) {
			xx = endPoint.x;
			yy = endPoint.y;
		} else {
			xx = startPoint.x + param * C;
			yy = startPoint.y + param * D;
		}
		var dx = x - xx;
		var dy = y - yy;
		var distance = Math.sqrt(dx * dx + dy * dy);
		if (distance < 80) {
			return false;
		}
	}
	// Check if position is not too close to other towers
	for (var i = 0; i < towers.length; i++) {
		var tower = towers[i];
		var distance = Math.sqrt((x - tower.x) * (x - tower.x) + (y - tower.y) * (y - tower.y));
		if (distance < 100) {
			return false;
		}
	}
	return true;
}
function spawnEnemy() {
	var enemyTypes = ['basic', 'fast', 'tank'];
	var waveMultiplier = Math.floor((currentWave - 1) / 3);
	// Choose enemy type based on wave
	var enemyType = 'basic';
	if (currentWave > 3) {
		enemyType = enemyTypes[Math.floor(Math.random() * 2)]; // basic or fast
	}
	if (currentWave > 6) {
		enemyType = enemyTypes[Math.floor(Math.random() * 3)]; // all types
	}
	var enemy = new Enemy(enemyType, 0);
	enemy.x = gamePath[0].x;
	enemy.y = gamePath[0].y;
	// Scale health for later waves
	enemy.maxHealth *= 1 + waveMultiplier * 0.5;
	enemy.health = enemy.maxHealth;
	enemies.push(enemy);
	game.addChild(enemy);
	enemiesSpawned++;
}
function generateNewPath() {
	// Clear existing path tiles
	for (var i = 0; i < game.children.length; i++) {
		var child = game.children[i];
		if (child.tint === 0x8B4513) {
			child.destroy();
			i--;
		}
	}
	// Calculate middle 80% vertical bounds (10% margin top and bottom)
	var screenHeight = 2732;
	var topMargin = screenHeight * 0.1; // 10% from top
	var bottomMargin = screenHeight * 0.9; // 90% from top (10% margin at bottom)
	var minY = topMargin;
	var maxY = bottomMargin;
	// Increase path length by 10% each wave (but not for the initial path)
	if (!isInitialPath) {
		pathExtensionFactor *= 1.10; // 10% increase per wave
	}
	// Function to calculate distance from point to line segment
	function distanceToLineSegment(point, lineStart, lineEnd) {
		var A = point.x - lineStart.x;
		var B = point.y - lineStart.y;
		var C = lineEnd.x - lineStart.x;
		var D = lineEnd.y - lineStart.y;
		var dot = A * C + B * D;
		var lenSq = C * C + D * D;
		if (lenSq === 0) return Math.sqrt(A * A + B * B);
		var param = dot / lenSq;
		var xx, yy;
		if (param < 0) {
			xx = lineStart.x;
			yy = lineStart.y;
		} else if (param > 1) {
			xx = lineEnd.x;
			yy = lineEnd.y;
		} else {
			xx = lineStart.x + param * C;
			yy = lineStart.y + param * D;
		}
		var dx = point.x - xx;
		var dy = point.y - yy;
		return Math.sqrt(dx * dx + dy * dy);
	}
	// Function to check if two line segments intersect
	function doLinesIntersect(p1, q1, p2, q2) {
		function orientation(p, q, r) {
			var val = (q.y - p.y) * (r.x - q.x) - (q.x - p.x) * (r.y - q.y);
			if (val === 0) return 0; // collinear
			return val > 0 ? 1 : 2; // clockwise or counterclockwise
		}
		function onSegment(p, q, r) {
			return q.x <= Math.max(p.x, r.x) && q.x >= Math.min(p.x, r.x) && q.y <= Math.max(p.y, r.y) && q.y >= Math.min(p.y, r.y);
		}
		var o1 = orientation(p1, q1, p2);
		var o2 = orientation(p1, q1, q2);
		var o3 = orientation(p2, q2, p1);
		var o4 = orientation(p2, q2, q1);
		// General case
		if (o1 !== o2 && o3 !== o4) return true;
		// Special cases
		if (o1 === 0 && onSegment(p1, p2, q1)) return true;
		if (o2 === 0 && onSegment(p1, q2, q1)) return true;
		if (o3 === 0 && onSegment(p2, p1, q2)) return true;
		if (o4 === 0 && onSegment(p2, q1, q2)) return true;
		return false;
	}
	// Function to check if proposed segment would intersect or get too close to existing path
	function wouldIntersectPath(newStart, newEnd, existingPath) {
		// Ultra-strict minimum distances to completely prevent any crossing
		var minDistance = 500; // Significantly increased minimum distance
		var minSafeDistance = 300; // Minimum safe distance for any part of path
		var criticalDistance = 400; // Critical distance for very sensitive areas
		// Primary check: Direct line intersection with ANY existing segment (except immediate connection)
		for (var i = 0; i < existingPath.length - 1; i++) {
			var segStart = existingPath[i];
			var segEnd = existingPath[i + 1];
			// Skip only the immediate previous segment that we're connecting from
			if (i === existingPath.length - 2) continue;
			// Check for any intersection between the new segment and existing segments
			if (doLinesIntersect(newStart, newEnd, segStart, segEnd)) {
				return true;
			}
		}
		// Secondary check: Ensure new segment maintains ultra-safe distance from ALL existing segments
		for (var i = 0; i < existingPath.length - 1; i++) {
			var segStart = existingPath[i];
			var segEnd = existingPath[i + 1];
			// Skip only the immediate previous segment
			if (i === existingPath.length - 2) continue;
			// Calculate minimum distance between the new segment and existing segment
			var dist1 = distanceToLineSegment(newStart, segStart, segEnd);
			var dist2 = distanceToLineSegment(newEnd, segStart, segEnd);
			var dist3 = distanceToLineSegment(segStart, newStart, newEnd);
			var dist4 = distanceToLineSegment(segEnd, newStart, newEnd);
			var minimumSegmentDistance = Math.min(dist1, dist2, dist3, dist4);
			// Use critical distance for older segments to prevent future crossings
			var requiredSegmentDistance = i < existingPath.length - 3 ? criticalDistance : minSafeDistance;
			// Reject if any part of the segments get too close
			if (minimumSegmentDistance < requiredSegmentDistance) {
				return true;
			}
		}
		// Tertiary check: Ensure new endpoint doesn't get too close to any existing path points
		for (var i = 0; i < existingPath.length; i++) {
			var pathPoint = existingPath[i];
			// Skip only the immediate previous point we're connecting from
			if (i === existingPath.length - 1) continue;
			// Calculate distance from new endpoint to existing path points
			var distToEnd = Math.sqrt((newEnd.x - pathPoint.x) * (newEnd.x - pathPoint.x) + (newEnd.y - pathPoint.y) * (newEnd.y - pathPoint.y));
			// Calculate distance from new start point to existing path points
			var distToStart = Math.sqrt((newStart.x - pathPoint.x) * (newStart.x - pathPoint.x) + (newStart.y - pathPoint.y) * (newStart.y - pathPoint.y));
			// Use increasingly strict distance requirements for older path points
			var ageMultiplier = 1.2 + (existingPath.length - 1 - i) * 0.3; // Much stricter for older points
			var requiredDistance = minDistance * ageMultiplier;
			if (distToEnd < requiredDistance || distToStart < requiredDistance) {
				return true;
			}
		}
		// Quaternary check: Prevent sharp reversals and dangerous angles
		if (existingPath.length >= 2) {
			var prevPoint = existingPath[existingPath.length - 1];
			var prevPrevPoint = existingPath[existingPath.length - 2];
			// Calculate direction vectors
			var prevDirX = prevPoint.x - prevPrevPoint.x;
			var prevDirY = prevPoint.y - prevPrevPoint.y;
			var newDirX = newEnd.x - newStart.x;
			var newDirY = newEnd.y - newStart.y;
			// Calculate angle between directions using dot product
			var dotProduct = prevDirX * newDirX + prevDirY * newDirY;
			var prevLength = Math.sqrt(prevDirX * prevDirX + prevDirY * prevDirY);
			var newLength = Math.sqrt(newDirX * newDirX + newDirY * newDirY);
			if (prevLength > 0 && newLength > 0) {
				var cosAngle = dotProduct / (prevLength * newLength);
				// Prevent sharp reversals (angles greater than 120 degrees) - much stricter
				if (cosAngle < -0.5) {
					// cos(120°) = -0.5
					return true;
				}
			}
		}
		// Quintet check: Advanced bounding box overlap detection
		// Create bounding boxes for new segment and all existing segments
		var newMinX = Math.min(newStart.x, newEnd.x) - minSafeDistance;
		var newMaxX = Math.max(newStart.x, newEnd.x) + minSafeDistance;
		var newMinY = Math.min(newStart.y, newEnd.y) - minSafeDistance;
		var newMaxY = Math.max(newStart.y, newEnd.y) + minSafeDistance;
		for (var i = 0; i < existingPath.length - 1; i++) {
			// Skip immediate previous segment
			if (i === existingPath.length - 2) continue;
			var segStart = existingPath[i];
			var segEnd = existingPath[i + 1];
			var existingMinX = Math.min(segStart.x, segEnd.x) - minSafeDistance;
			var existingMaxX = Math.max(segStart.x, segEnd.x) + minSafeDistance;
			var existingMinY = Math.min(segStart.y, segEnd.y) - minSafeDistance;
			var existingMaxY = Math.max(segStart.y, segEnd.y) + minSafeDistance;
			// Check for bounding box overlap
			if (newMinX < existingMaxX && newMaxX > existingMinX && newMinY < existingMaxY && newMaxY > existingMinY) {
				// Bounding boxes overlap - this is potentially dangerous
				return true;
			}
		}
		// Sextet check: Trajectory prediction to prevent future self-intersection
		// Look ahead to see if this segment direction could lead to future problems
		if (existingPath.length >= 3) {
			// Calculate general path tendency
			var pathStartX = existingPath[0].x;
			var pathStartY = existingPath[0].y;
			var pathCurrentX = existingPath[existingPath.length - 1].x;
			var pathCurrentY = existingPath[existingPath.length - 1].y;
			// If new segment would bring us significantly closer to the path start area, be very cautious
			var currentDistToStart = Math.sqrt((pathCurrentX - pathStartX) * (pathCurrentX - pathStartX) + (pathCurrentY - pathStartY) * (pathCurrentY - pathStartY));
			var newDistToStart = Math.sqrt((newEnd.x - pathStartX) * (newEnd.x - pathStartX) + (newEnd.y - pathStartY) * (newEnd.y - pathStartY));
			// If we're getting much closer to start area and there are many existing segments, reject
			if (newDistToStart < currentDistToStart * 0.7 && existingPath.length > 4) {
				return true;
			}
		}
		// Final comprehensive check: Ensure the new segment doesn't create potential for future loops
		// by checking if it would "enclose" any existing path segments
		if (existingPath.length >= 3) {
			// Check if the new segment would create a potential enclosed area with any non-adjacent path segments
			for (var i = 0; i < existingPath.length - 3; i++) {
				// Check against segments that are not adjacent
				var oldSegStart = existingPath[i];
				var oldSegEnd = existingPath[i + 1];
				// Calculate if new segment and old segment could form an enclosed area
				// Check if segments are oriented in a way that could trap path points between them
				var cross1 = (newEnd.x - newStart.x) * (oldSegStart.y - newStart.y) - (newEnd.y - newStart.y) * (oldSegStart.x - newStart.x);
				var cross2 = (newEnd.x - newStart.x) * (oldSegEnd.y - newStart.y) - (newEnd.y - newStart.y) * (oldSegEnd.x - newStart.x);
				var cross3 = (oldSegEnd.x - oldSegStart.x) * (newStart.y - oldSegStart.y) - (oldSegEnd.y - oldSegStart.y) * (newStart.x - oldSegStart.x);
				var cross4 = (oldSegEnd.x - oldSegStart.x) * (newEnd.y - oldSegStart.y) - (oldSegEnd.y - oldSegStart.y) * (newEnd.x - oldSegStart.x);
				// If segments create opposing orientations, they might enclose an area - reject this
				if (cross1 > 0 !== cross2 > 0 && cross3 > 0 !== cross4 > 0) {
					return true;
				}
			}
		}
		return false;
	}
	// Create varied path shapes while maintaining characteristics
	gamePath = [];
	var baseSegmentLength = isInitialPath ? 500 : Math.floor(300 * pathExtensionFactor); // Base segment length for initial path calculation
	// For initial path, calculate exact segments needed to achieve 3000 pixels total length
	var numSegments = isInitialPath ? 6 : Math.max(6, Math.floor(5 + currentWave * 0.5)); // 6 segments for 3000 pixel initial path
	var turnCount = 0; // Track number of turns
	// Starting position - randomize within left area
	var startX = 100 + Math.random() * 200;
	var startY = minY + 100 + Math.random() * (maxY - minY - 200);
	gamePath.push({
		x: startX,
		y: startY
	});
	var currentX = startX;
	var currentY = startY;
	var direction = 0; // 0=right, 1=down, 2=left, 3=up
	var totalPathLength = 0; // Track total path length built so far
	var segmentLengths = []; // Pre-calculate segment lengths to total exactly 3000 pixels
	if (isInitialPath) {
		// Pre-calculate segment lengths that sum to exactly 3000-3100 pixels
		var targetLength = 3000 + Math.floor(Math.random() * 101); // Random between 3000-3100
		var minSegmentLength = 400; // Increased minimum segment length
		var maxSegmentLength = 600; // Reduced maximum segment length for more consistent distribution
		var remainingLength = targetLength;
		segmentLengths = [];
		// Ensure we can actually achieve the target with our constraints
		var minPossibleTotal = numSegments * minSegmentLength;
		var maxPossibleTotal = numSegments * maxSegmentLength;
		// If target is outside possible range, adjust it
		if (targetLength < minPossibleTotal) {
			targetLength = minPossibleTotal;
		} else if (targetLength > maxPossibleTotal) {
			targetLength = maxPossibleTotal;
		}
		remainingLength = targetLength;
		// Distribute length across segments ensuring minimums and maximums
		for (var i = 0; i < numSegments - 1; i++) {
			var remainingSegments = numSegments - i;
			var maxPossibleThisSegment = Math.min(maxSegmentLength, remainingLength - (remainingSegments - 1) * minSegmentLength);
			var minPossibleThisSegment = Math.max(minSegmentLength, remainingLength - (remainingSegments - 1) * maxSegmentLength);
			// Ensure we have a valid range
			if (minPossibleThisSegment <= maxPossibleThisSegment) {
				var segmentLength = minPossibleThisSegment + Math.floor(Math.random() * (maxPossibleThisSegment - minPossibleThisSegment + 1));
				segmentLengths.push(segmentLength);
				remainingLength -= segmentLength;
			} else {
				// Force to minimum if range is invalid
				segmentLengths.push(minSegmentLength);
				remainingLength -= minSegmentLength;
			}
		}
		// Last segment gets remaining length, but ensure it's within bounds
		var lastSegment = remainingLength;
		if (lastSegment < minSegmentLength) {
			// Redistribute from other segments to meet minimum
			var deficit = minSegmentLength - lastSegment;
			for (var i = segmentLengths.length - 1; i >= 0 && deficit > 0; i--) {
				var canReduce = segmentLengths[i] - minSegmentLength;
				var toReduce = Math.min(deficit, canReduce);
				segmentLengths[i] -= toReduce;
				deficit -= toReduce;
				lastSegment += toReduce;
			}
		} else if (lastSegment > maxSegmentLength) {
			// Redistribute excess to other segments
			var excess = lastSegment - maxSegmentLength;
			for (var i = segmentLengths.length - 1; i >= 0 && excess > 0; i--) {
				var canAdd = maxSegmentLength - segmentLengths[i];
				var toAdd = Math.min(excess, canAdd);
				segmentLengths[i] += toAdd;
				excess -= toAdd;
				lastSegment -= toAdd;
			}
		}
		segmentLengths.push(lastSegment);
		// Final validation - ensure total is exactly in range and all segments are valid
		var finalTotal = 0;
		var allValid = true;
		for (var i = 0; i < segmentLengths.length; i++) {
			finalTotal += segmentLengths[i];
			if (segmentLengths[i] < minSegmentLength || segmentLengths[i] > maxSegmentLength) {
				allValid = false;
			}
		}
		// If total is not in range or segments are invalid, use safe fallback
		if (finalTotal < 3000 || finalTotal > 3100 || !allValid) {
			segmentLengths = [];
			var baseLength = Math.floor(3050 / numSegments);
			var remainder = 3050 % numSegments;
			for (var i = 0; i < numSegments; i++) {
				var segLength = baseLength + (i < remainder ? 1 : 0);
				// Ensure each segment is within bounds
				segLength = Math.max(minSegmentLength, Math.min(maxSegmentLength, segLength));
				segmentLengths.push(segLength);
			}
		}
	}
	// Generate varied path with guaranteed minimum 3 turns
	// Create strategic turn points to ensure we get at least 3 turns
	var mandatoryTurnSegments = [];
	if (numSegments >= 5) {
		// Place mandatory turns at strategic points
		mandatoryTurnSegments.push(Math.floor(numSegments * 0.25)); // Turn at 25%
		mandatoryTurnSegments.push(Math.floor(numSegments * 0.5)); // Turn at 50%
		mandatoryTurnSegments.push(Math.floor(numSegments * 0.75)); // Turn at 75%
	}
	for (var seg = 0; seg < numSegments; seg++) {
		// Use pre-calculated segment length for initial path, or calculate normally for other paths
		var segmentLength = isInitialPath ? segmentLengths[seg] : Math.max(250, baseSegmentLength + Math.random() * 200 - 100);
		var attempts = 0;
		var validSegmentFound = false;
		var forceTurn = mandatoryTurnSegments.indexOf(seg) !== -1; // Force turn at strategic segments
		while (!validSegmentFound && attempts < 50) {
			// Increased max attempts
			var shouldTurn = false;
			// Force turn at mandatory segments or if we haven't turned enough
			if (forceTurn || turnCount < 3 && seg >= numSegments - (3 - turnCount)) {
				shouldTurn = true;
			} else if (turnCount < 3 && seg > 0 && Math.random() < 0.9) {
				// Very high chance of turning when we need more turns
				shouldTurn = true;
			} else if (turnCount >= 3 && seg > 0 && Math.random() < 0.4) {
				// Lower chance after we have enough turns
				shouldTurn = true;
			}
			if (shouldTurn && seg > 0) {
				// Don't turn on first segment
				// Change direction (90-degree turn)
				var oldDirection = direction;
				var possibleDirections = [];
				// Calculate valid directions based on current position and boundaries
				if (direction !== 2 && currentX + segmentLength < 1900) possibleDirections.push(0); // right
				if (direction !== 3 && currentY + segmentLength < maxY) possibleDirections.push(1); // down
				if (direction !== 0 && currentX - segmentLength > 100) possibleDirections.push(2); // left
				if (direction !== 1 && currentY - segmentLength > minY) possibleDirections.push(3); // up
				// Remove the current direction to force an actual turn
				var filteredDirections = [];
				for (var d = 0; d < possibleDirections.length; d++) {
					if (possibleDirections[d] !== direction) {
						filteredDirections.push(possibleDirections[d]);
					}
				}
				if (filteredDirections.length > 0) {
					direction = filteredDirections[Math.floor(Math.random() * filteredDirections.length)];
					turnCount++;
				} else if (possibleDirections.length > 0) {
					// Fallback to any valid direction if no turn is possible
					direction = possibleDirections[Math.floor(Math.random() * possibleDirections.length)];
				}
			}
			// Calculate next position based on direction
			var nextX = currentX;
			var nextY = currentY;
			if (direction === 0) {
				// right
				nextX = Math.min(1900, currentX + segmentLength);
			} else if (direction === 1) {
				// down
				nextY = Math.min(maxY, currentY + segmentLength);
			} else if (direction === 2) {
				// left
				nextX = Math.max(100, currentX - segmentLength);
			} else if (direction === 3) {
				// up
				nextY = Math.max(minY, currentY - segmentLength);
			}
			// Ensure we're moving towards the general end area in later segments
			if (seg > numSegments * 0.7) {
				if (nextX < 1500) {
					nextX = Math.min(1900, currentX + Math.abs(segmentLength));
					direction = 0;
				}
			}
			// Check if this segment would intersect existing path
			var proposedStart = {
				x: currentX,
				y: currentY
			};
			var proposedEnd = {
				x: nextX,
				y: nextY
			};
			// Check intersection with much stricter criteria
			var isValidSegment = false;
			if (gamePath.length < 2) {
				// First few segments are always safe
				isValidSegment = true;
			} else {
				// For subsequent segments, apply strict intersection checking
				isValidSegment = !wouldIntersectPath(proposedStart, proposedEnd, gamePath);
			}
			if (isValidSegment) {
				gamePath.push({
					x: nextX,
					y: nextY
				});
				currentX = nextX;
				currentY = nextY;
				validSegmentFound = true;
			} else {
				// Segment would intersect - try different approach
				attempts++;
				// Reduce segment length significantly on each attempt
				segmentLength = Math.max(150, segmentLength * 0.7);
				// After several attempts, try completely different directions
				if (attempts > 10) {
					var availableDirections = [];
					// Check all directions for validity
					if (currentX + 200 < 1900 && direction !== 2) availableDirections.push(0); // right
					if (currentY + 200 < maxY && direction !== 3) availableDirections.push(1); // down  
					if (currentX - 200 > 100 && direction !== 0) availableDirections.push(2); // left
					if (currentY - 200 > minY && direction !== 1) availableDirections.push(3); // up
					if (availableDirections.length > 0) {
						direction = availableDirections[Math.floor(Math.random() * availableDirections.length)];
						segmentLength = 200; // Reset to smaller safe length
					}
				}
			}
		}
		if (!validSegmentFound) {
			// Force a valid segment if we can't find one - try multiple directions
			var fallbackFound = false;
			var fallbackDirections = [0, 1, 2, 3]; // right, down, left, up
			for (var fd = 0; fd < fallbackDirections.length && !fallbackFound; fd++) {
				var fallbackDir = fallbackDirections[fd];
				var fallbackLength = 200;
				var fallbackX = currentX;
				var fallbackY = currentY;
				if (fallbackDir === 0 && currentX + fallbackLength < 1900) {
					// right
					fallbackX = currentX + fallbackLength;
				} else if (fallbackDir === 1 && currentY + fallbackLength < maxY) {
					// down
					fallbackY = currentY + fallbackLength;
				} else if (fallbackDir === 2 && currentX - fallbackLength > 100) {
					// left
					fallbackX = currentX - fallbackLength;
				} else if (fallbackDir === 3 && currentY - fallbackLength > minY) {
					// up
					fallbackY = currentY - fallbackLength;
				} else {
					continue; // Try next direction
				}
				var fallbackStart = {
					x: currentX,
					y: currentY
				};
				var fallbackEnd = {
					x: fallbackX,
					y: fallbackY
				};
				// Check if this fallback direction works
				if (gamePath.length < 2 || !wouldIntersectPath(fallbackStart, fallbackEnd, gamePath)) {
					gamePath.push({
						x: fallbackX,
						y: fallbackY
					});
					currentX = fallbackX;
					currentY = fallbackY;
					direction = fallbackDir;
					fallbackFound = true;
				}
			}
			// If still no valid segment found, break the loop to prevent infinite generation
			if (!fallbackFound) {
				break;
			}
		}
	}
	// Ensure final path reaches right side of screen
	if (currentX < 1600) {
		gamePath.push({
			x: Math.min(1900, currentX + 300),
			y: currentY
		});
	}
	// Redraw path tiles using circles for smoother appearance
	for (var i = 0; i < gamePath.length; i++) {
		var pathTile = LK.getAsset('bullet', {
			anchorX: 0.5,
			anchorY: 0.5,
			scaleX: 3.75,
			scaleY: 3.75
		});
		pathTile.x = gamePath[i].x;
		pathTile.y = gamePath[i].y;
		pathTile.alpha = 0.9;
		pathTile.tint = 0x8B4513;
		game.addChild(pathTile);
	}
	// Draw connecting segments with circles for smoother road
	for (var i = 0; i < gamePath.length - 1; i++) {
		var startPoint = gamePath[i];
		var endPoint = gamePath[i + 1];
		var dx = endPoint.x - startPoint.x;
		var dy = endPoint.y - startPoint.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		var segments = Math.ceil(distance / 20);
		for (var j = 1; j < segments; j++) {
			var t = j / segments;
			var segmentX = startPoint.x + dx * t;
			var segmentY = startPoint.y + dy * t;
			var segmentTile = LK.getAsset('bullet', {
				anchorX: 0.5,
				anchorY: 0.5,
				scaleX: 3.75,
				scaleY: 3.75
			});
			segmentTile.x = segmentX;
			segmentTile.y = segmentY;
			segmentTile.alpha = 0.8;
			segmentTile.tint = 0x8B4513;
			game.addChild(segmentTile);
		}
	}
	// Ensure gamePath has valid elements
	if (!gamePath || gamePath.length === 0) {
		// Fallback path if generation failed
		gamePath = [{
			x: 100,
			y: 400
		}, {
			x: 1800,
			y: 1600
		}];
	}
	// Update base position to new end position
	if (base) {
		base.x = gamePath[gamePath.length - 1].x;
		base.y = gamePath[gamePath.length - 1].y;
	}
	// Update baslangic position to new start position
	if (baslangicImage) {
		baslangicImage.x = gamePath[0].x;
		baslangicImage.y = gamePath[0].y;
	}
	// Ensure base and baslangic stay in foreground
	if (base) game.addChild(base);
	if (baslangicImage) game.addChild(baslangicImage);
	// After generating initial path, set flag to false for subsequent waves
	if (isInitialPath) {
		isInitialPath = false;
	}
}
function clearAllTowers() {
	for (var i = towers.length - 1; i >= 0; i--) {
		towers[i].destroy();
	}
	towers = [];
}
function spawnBossEnemy() {
	var waveMultiplier = Math.floor((currentWave - 1) / 3);
	var totalEnemyHealth = 0;
	var enemyCount = enemiesPerWave * currentWave;
	// Calculate total health of all enemies that would spawn in wave 5
	for (var i = 0; i < enemyCount; i++) {
		var baseHealth = 100; // Basic enemy health
		if (currentWave > 3) baseHealth = 80; // Mix of basic and fast
		if (currentWave > 6) baseHealth = 120; // Mix of all types
		totalEnemyHealth += baseHealth * (1 + waveMultiplier * 0.5);
	}
	var boss = new Enemy('boss', 0);
	boss.x = gamePath[0].x;
	boss.y = gamePath[0].y;
	boss.maxHealth = totalEnemyHealth;
	boss.health = totalEnemyHealth;
	boss.reward = 200;
	enemies.push(boss);
	game.addChild(boss);
	bossSpawned = true;
}
function showTowerInfo(tower) {
	if (!tower) return;
	if (towerInfoPanel) {
		towerInfoPanel.destroy();
	}
	var panel = LK.getAsset('base', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 2,
		scaleY: 1.5
	});
	panel.tint = 0x333333;
	panel.alpha = 0.8;
	panel.x = tower.x;
	panel.y = Math.max(150, tower.y - 150);
	game.addChild(panel);
	towerInfoPanel = panel;
	var infoText = new Text2('Level: ' + tower.level + '\nDamage: ' + tower.damage + '\nUpgrade: ' + tower.upgradeCost, {
		size: 25,
		fill: 0xFFFFFF
	});
	infoText.anchor.set(0.5, 0.5);
	infoText.x = 0;
	infoText.y = -25;
	panel.addChild(infoText);
	if (coins >= tower.upgradeCost) {
		var upgradeBtn = new Text2('UPGRADE', {
			size: 30,
			fill: 0x00FF00
		});
		upgradeBtn.anchor.set(0.5, 0.5);
		upgradeBtn.y = 35;
		panel.addChild(upgradeBtn);
	}
}
// Event handlers
basicTowerBtn.down = function () {
	selectedTowerType = 'basic';
	if (selectedTower) {
		selectedTower.hideRange();
		selectedTower = null;
	}
};
splashTowerBtn.down = function () {
	selectedTowerType = 'splash';
	if (selectedTower) {
		selectedTower.hideRange();
		selectedTower = null;
	}
};
slowTowerBtn.down = function () {
	selectedTowerType = 'slow';
	if (selectedTower) {
		selectedTower.hideRange();
		selectedTower = null;
	}
};
// Add click handlers for levelatla upgrade buttons
basicLevelatlaBtn.down = function () {
	if (coins >= towerInfoStats.basic.upgradeCost) {
		coins -= towerInfoStats.basic.upgradeCost;
		towerInfoStats.basic.level++;
		towerInfoStats.basic.damage = Math.floor(towerInfoStats.basic.damage * 1.5);
		towerInfoStats.basic.upgradeCost = Math.floor(towerInfoStats.basic.upgradeCost * 1.8);
	}
};
splashLevelatlaBtn.down = function () {
	if (coins >= towerInfoStats.splash.upgradeCost) {
		coins -= towerInfoStats.splash.upgradeCost;
		towerInfoStats.splash.level++;
		towerInfoStats.splash.damage = Math.floor(towerInfoStats.splash.damage * 1.5);
		towerInfoStats.splash.upgradeCost = Math.floor(towerInfoStats.splash.upgradeCost * 1.8);
	}
};
slowLevelatlaBtn.down = function () {
	if (coins >= towerInfoStats.slow.upgradeCost) {
		coins -= towerInfoStats.slow.upgradeCost;
		towerInfoStats.slow.level++;
		towerInfoStats.slow.damage = Math.floor(towerInfoStats.slow.damage * 1.5);
		towerInfoStats.slow.upgradeCost = Math.floor(towerInfoStats.slow.upgradeCost * 1.8);
	}
};
game.down = function (x, y, obj) {
	// Hide tower range if clicking elsewhere
	if (selectedTower) {
		selectedTower.hideRange();
		selectedTower = null;
	}
	// Try to place tower
	var towerCost = selectedTowerType === 'basic' ? 100 : selectedTowerType === 'splash' ? 200 : 150;
	if (coins >= towerCost && canPlaceTower(x, y)) {
		var tower = new Tower(selectedTowerType);
		tower.x = x;
		tower.y = y;
		towers.push(tower);
		game.addChild(tower);
		coins -= towerCost;
		// Update tower info stats
		towerInfoStats[selectedTowerType].level = Math.max(towerInfoStats[selectedTowerType].level, tower.level);
		towerInfoStats[selectedTowerType].damage = Math.max(towerInfoStats[selectedTowerType].damage, tower.damage);
		towerInfoStats[selectedTowerType].upgradeCost = Math.max(towerInfoStats[selectedTowerType].upgradeCost, tower.upgradeCost);
		LK.getSound('place').play();
	}
};
// Main game loop
game.update = function () {
	// Spawn enemies
	if (bossWave) {
		// Boss wave spawning
		if (waveDelay <= 0 && !bossSpawned) {
			spawnBossEnemy();
			waveDelay = 0;
		} else {
			waveDelay--;
		}
	} else {
		// Normal wave spawning
		if (waveDelay <= 0 && enemiesSpawned < enemiesPerWave * currentWave) {
			spawnEnemy();
			waveDelay = 60; // 1 second between spawns
		} else {
			waveDelay--;
		}
	}
	// Check wave completion
	if (bossWave) {
		// Boss wave completion
		if (bossSpawned && enemies.length === 0) {
			// Clear all towers at wave completion
			clearAllTowers();
			// Reset to initial path settings for consistent 2732px path
			isInitialPath = true;
			pathExtensionFactor = 1.0;
			// Generate new path with different shape and increased length
			generateNewPath();
			currentWave++;
			enemiesSpawned = 0;
			coins += 100 * currentWave; // Bonus coins for completing boss wave
			waveDelay = 300; // 5 second break after boss
			bossWave = false;
			bossSpawned = false;
		}
	} else {
		// Normal wave completion
		if (enemiesSpawned >= enemiesPerWave * currentWave && enemies.length === 0) {
			// Clear all towers at wave completion
			clearAllTowers();
			// Reset to initial path settings for consistent 2732px path
			isInitialPath = true;
			pathExtensionFactor = 1.0;
			// Generate new path with different shape and increased length
			generateNewPath();
			// Check if this completes a set of 5 waves
			if (currentWave % 5 === 0) {
				// Start boss wave
				bossWave = true;
				bossSpawned = false;
				waveDelay = 180; // 3 second break before boss
			} else {
				// Normal wave progression
				currentWave++;
				enemiesSpawned = 0;
				coins += 25 * currentWave; // Bonus coins for completing wave
				waveDelay = 180; // 3 second break between waves
			}
		}
	}
	// Update enemies
	for (var i = enemies.length - 1; i >= 0; i--) {
		var enemy = enemies[i];
		if (enemy.pathIndex >= gamePath.length - 1) {
			// Enemy reached base
			baseHealth--;
			enemy.destroy();
			enemies.splice(i, 1);
		}
	}
	// Update towers
	for (var i = 0; i < towers.length; i++) {
		towers[i].update();
	}
	// Update bullets
	for (var i = 0; i < bullets.length; i++) {
		bullets[i].update();
	}
	// Check game over
	if (baseHealth <= 0) {
		LK.setScore(currentWave - 1);
		LK.showGameOver();
	}
	// Update UI
	updateUI();
};

===================================================================
--- original.js
+++ change.js
@@ -828,11 +828,12 @@
 		return false;
 	}
 	// Function to check if proposed segment would intersect or get too close to existing path
 	function wouldIntersectPath(newStart, newEnd, existingPath) {
-		// Strict minimum distance to prevent any crossing or touching
-		var minDistance = 350; // Increased minimum distance significantly
-		var minSafeDistance = 200; // Minimum safe distance for any part of path
+		// Ultra-strict minimum distances to completely prevent any crossing
+		var minDistance = 500; // Significantly increased minimum distance
+		var minSafeDistance = 300; // Minimum safe distance for any part of path
+		var criticalDistance = 400; // Critical distance for very sensitive areas
 		// Primary check: Direct line intersection with ANY existing segment (except immediate connection)
 		for (var i = 0; i < existingPath.length - 1; i++) {
 			var segStart = existingPath[i];
 			var segEnd = existingPath[i + 1];
@@ -842,9 +843,9 @@
 			if (doLinesIntersect(newStart, newEnd, segStart, segEnd)) {
 				return true;
 			}
 		}
-		// Secondary check: Ensure new segment maintains safe distance from ALL existing segments
+		// Secondary check: Ensure new segment maintains ultra-safe distance from ALL existing segments
 		for (var i = 0; i < existingPath.length - 1; i++) {
 			var segStart = existingPath[i];
 			var segEnd = existingPath[i + 1];
 			// Skip only the immediate previous segment
@@ -854,10 +855,12 @@
 			var dist2 = distanceToLineSegment(newEnd, segStart, segEnd);
 			var dist3 = distanceToLineSegment(segStart, newStart, newEnd);
 			var dist4 = distanceToLineSegment(segEnd, newStart, newEnd);
 			var minimumSegmentDistance = Math.min(dist1, dist2, dist3, dist4);
+			// Use critical distance for older segments to prevent future crossings
+			var requiredSegmentDistance = i < existingPath.length - 3 ? criticalDistance : minSafeDistance;
 			// Reject if any part of the segments get too close
-			if (minimumSegmentDistance < minSafeDistance) {
+			if (minimumSegmentDistance < requiredSegmentDistance) {
 				return true;
 			}
 		}
 		// Tertiary check: Ensure new endpoint doesn't get too close to any existing path points
@@ -866,16 +869,18 @@
 			// Skip only the immediate previous point we're connecting from
 			if (i === existingPath.length - 1) continue;
 			// Calculate distance from new endpoint to existing path points
 			var distToEnd = Math.sqrt((newEnd.x - pathPoint.x) * (newEnd.x - pathPoint.x) + (newEnd.y - pathPoint.y) * (newEnd.y - pathPoint.y));
+			// Calculate distance from new start point to existing path points
+			var distToStart = Math.sqrt((newStart.x - pathPoint.x) * (newStart.x - pathPoint.x) + (newStart.y - pathPoint.y) * (newStart.y - pathPoint.y));
 			// Use increasingly strict distance requirements for older path points
-			var ageMultiplier = 1.0 + (existingPath.length - 1 - i) * 0.2; // Older points need more distance
+			var ageMultiplier = 1.2 + (existingPath.length - 1 - i) * 0.3; // Much stricter for older points
 			var requiredDistance = minDistance * ageMultiplier;
-			if (distToEnd < requiredDistance) {
+			if (distToEnd < requiredDistance || distToStart < requiredDistance) {
 				return true;
 			}
 		}
-		// Quaternary check: Prevent sharp reversals that could lead to future self-intersection
+		// Quaternary check: Prevent sharp reversals and dangerous angles
 		if (existingPath.length >= 2) {
 			var prevPoint = existingPath[existingPath.length - 1];
 			var prevPrevPoint = existingPath[existingPath.length - 2];
 			// Calculate direction vectors
@@ -888,15 +893,52 @@
 			var prevLength = Math.sqrt(prevDirX * prevDirX + prevDirY * prevDirY);
 			var newLength = Math.sqrt(newDirX * newDirX + newDirY * newDirY);
 			if (prevLength > 0 && newLength > 0) {
 				var cosAngle = dotProduct / (prevLength * newLength);
-				// Prevent sharp reversals (angles greater than 140 degrees)
-				if (cosAngle < -0.64) {
-					// cos(140°) ≈ -0.64
+				// Prevent sharp reversals (angles greater than 120 degrees) - much stricter
+				if (cosAngle < -0.5) {
+					// cos(120°) = -0.5
 					return true;
 				}
 			}
 		}
+		// Quintet check: Advanced bounding box overlap detection
+		// Create bounding boxes for new segment and all existing segments
+		var newMinX = Math.min(newStart.x, newEnd.x) - minSafeDistance;
+		var newMaxX = Math.max(newStart.x, newEnd.x) + minSafeDistance;
+		var newMinY = Math.min(newStart.y, newEnd.y) - minSafeDistance;
+		var newMaxY = Math.max(newStart.y, newEnd.y) + minSafeDistance;
+		for (var i = 0; i < existingPath.length - 1; i++) {
+			// Skip immediate previous segment
+			if (i === existingPath.length - 2) continue;
+			var segStart = existingPath[i];
+			var segEnd = existingPath[i + 1];
+			var existingMinX = Math.min(segStart.x, segEnd.x) - minSafeDistance;
+			var existingMaxX = Math.max(segStart.x, segEnd.x) + minSafeDistance;
+			var existingMinY = Math.min(segStart.y, segEnd.y) - minSafeDistance;
+			var existingMaxY = Math.max(segStart.y, segEnd.y) + minSafeDistance;
+			// Check for bounding box overlap
+			if (newMinX < existingMaxX && newMaxX > existingMinX && newMinY < existingMaxY && newMaxY > existingMinY) {
+				// Bounding boxes overlap - this is potentially dangerous
+				return true;
+			}
+		}
+		// Sextet check: Trajectory prediction to prevent future self-intersection
+		// Look ahead to see if this segment direction could lead to future problems
+		if (existingPath.length >= 3) {
+			// Calculate general path tendency
+			var pathStartX = existingPath[0].x;
+			var pathStartY = existingPath[0].y;
+			var pathCurrentX = existingPath[existingPath.length - 1].x;
+			var pathCurrentY = existingPath[existingPath.length - 1].y;
+			// If new segment would bring us significantly closer to the path start area, be very cautious
+			var currentDistToStart = Math.sqrt((pathCurrentX - pathStartX) * (pathCurrentX - pathStartX) + (pathCurrentY - pathStartY) * (pathCurrentY - pathStartY));
+			var newDistToStart = Math.sqrt((newEnd.x - pathStartX) * (newEnd.x - pathStartX) + (newEnd.y - pathStartY) * (newEnd.y - pathStartY));
+			// If we're getting much closer to start area and there are many existing segments, reject
+			if (newDistToStart < currentDistToStart * 0.7 && existingPath.length > 4) {
+				return true;
+			}
+		}
 		// Final comprehensive check: Ensure the new segment doesn't create potential for future loops
 		// by checking if it would "enclose" any existing path segments
 		if (existingPath.length >= 3) {
 			// Check if the new segment would create a potential enclosed area with any non-adjacent path segments