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

/**** 
* Classes
****/ 
var Coin = Container.expand(function () {
	var self = Container.call(this);
	var coinGraphics = self.attachAsset('coin', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.bobOffset = Math.random() * Math.PI * 2;
	self.initialY = 0;
	self.update = function () {
		if (self.initialY === 0) {
			self.initialY = self.y;
		}
		// Only do bobbing animation and collection if not animating to coin counter
		if (!self.isAnimating) {
			// Bobbing animation
			self.y = self.initialY + Math.sin(LK.ticks * 0.1 + self.bobOffset) * 10;
			// Check collection by knight
			if (knight && self.intersects(knight)) {
				self.collect();
			}
		}
	};
	self.collect = function () {
		LK.getSound('coinCollect').play();
		LK.setScore(LK.getScore() + 5);
		coinCounter++;
		coinText.setText('Coins: ' + coinCounter);
		// Remove from coins array
		for (var i = coins.length - 1; i >= 0; i--) {
			if (coins[i] === self) {
				coins.splice(i, 1);
				break;
			}
		}
		self.destroy();
	};
	return self;
});
// Game arrays to track objects
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	self.health = 100;
	self.maxHealth = 100;
	self.speed = 3;
	self.lastX = 0;
	self.update = function () {
		// Move along the assigned path toward the knight
		if (knight && self.pathAngle !== undefined) {
			// Move along the path direction toward the knight
			var moveX = -Math.cos(self.pathAngle) * self.speed;
			var moveY = -Math.sin(self.pathAngle) * self.speed;
			self.x += moveX;
			self.y += moveY;
		} else if (knight) {
			// Fallback: move directly toward the knight if no path assigned
			var dx = knight.x - self.x;
			var dy = knight.y - self.y;
			var distance = Math.sqrt(dx * dx + dy * dy);
			if (distance > 0) {
				// Normalize direction and apply speed
				self.x += dx / distance * self.speed;
				self.y += dy / distance * self.speed;
			}
		} else {
			// Fallback: move down if knight doesn't exist
			self.y += self.speed;
		}
	};
	self.takeDamage = function (damage) {
		self.health -= damage;
		// Flash red when hit
		LK.effects.flashObject(self, 0xFF0000, 200);
		if (self.health <= 0) {
			self.die();
		}
	};
	self.down = function (x, y, obj) {
		// Enemy dies when tapped
		self.die();
	};
	self.die = function () {
		// Drop coin
		var coin = game.addChild(new Coin());
		coin.x = self.x;
		coin.y = self.y - 50;
		coin.isAnimating = true;
		coins.push(coin);
		// Animate coin moving toward coin counter
		var coinTargetX = 120 + coinText.width / 2;
		var coinTargetY = 90 + coinText.height / 2;
		tween(coin, {
			x: coinTargetX,
			y: coinTargetY,
			scaleX: 0.5,
			scaleY: 0.5
		}, {
			duration: 1000,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				// Increment coin counter after animation
				coinCounter++;
				coinText.setText('Coins: ' + coinCounter);
				// Remove coin from array and destroy
				for (var i = coins.length - 1; i >= 0; i--) {
					if (coins[i] === coin) {
						coins.splice(i, 1);
						break;
					}
				}
				coin.destroy();
			}
		});
		// Increment enemy kill counter
		enemyKillCounter++;
		killCountText.setText('Puntuacion: ' + enemyKillCounter);
		// Add experience to knight
		knight.gainExperience(25);
		// Remove from enemies array
		for (var i = enemies.length - 1; i >= 0; i--) {
			if (enemies[i] === self) {
				enemies.splice(i, 1);
				break;
			}
		}
		self.destroy();
		LK.setScore(LK.getScore() + 10);
	};
	return self;
});
var GameMenu = Container.expand(function () {
	var self = Container.call(this);
	// Semi-transparent background overlay
	var menuBg = self.attachAsset('pathSelector', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 2048 / 2,
		y: 2732 / 2,
		scaleX: 35,
		scaleY: 45
	});
	menuBg.alpha = 0.9;
	menuBg.tint = 0x87CEEB; // Celeste (sky blue) color
	// Title text
	var titleText = new Text2('KNIGHT DEFENDER', {
		size: 150,
		fill: 0xFFD700
	});
	titleText.anchor.set(0.5, 0.5);
	titleText.x = 2048 / 2;
	titleText.y = 800;
	self.addChild(titleText);
	// Instructions text
	var instructionsText = new Text2('TAP PATHS TO ATTACK ENEMIES\nDEFEND YOUR CASTLE!', {
		size: 80,
		fill: 0xFFFFFF
	});
	instructionsText.anchor.set(0.5, 0.5);
	instructionsText.x = 2048 / 2;
	instructionsText.y = 1200;
	self.addChild(instructionsText);
	// Start button
	var startButton = self.attachAsset('knight', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 2048 / 2,
		y: 1600,
		scaleX: 2,
		scaleY: 2
	});
	var startButtonText = new Text2('START GAME', {
		size: 100,
		fill: 0x000000
	});
	startButtonText.anchor.set(0.5, 0.5);
	startButtonText.x = 2048 / 2;
	startButtonText.y = 1700;
	self.addChild(startButtonText);
	// Button interaction
	self.down = function (x, y, obj) {
		// Start the game by hiding menu
		self.startGame();
	};
	self.startGame = function () {
		// Hide menu and start game
		self.visible = false;
		gameStarted = true;
		// Show all game elements
		castle.visible = true;
		knight.visible = true;
		for (var i = 0; i < paths.length; i++) {
			paths[i].visible = true;
		}
		coinText.visible = true;
		killCountText.visible = true;
		tapText.visible = true;
		healthBarBg.visible = true;
		healthBar.visible = true;
		healthText.visible = true;
		// Start medieval music
		LK.playMusic('medievalTheme');
	};
	return self;
});
var Knight = Container.expand(function () {
	var self = Container.call(this);
	var knightGraphics = self.attachAsset('knight', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	self.attackCooldown = 0;
	self.level = 1;
	self.experience = 0;
	self.health = 100;
	self.maxHealth = 100;
	self.update = function () {
		if (self.attackCooldown > 0) {
			self.attackCooldown--;
		}
	};
	self.attack = function (direction) {
		if (self.attackCooldown <= 0) {
			// Default direction if none specified
			if (direction === undefined) {
				direction = 0; // Default to center path
			}
			// Get attack angle based on path direction
			var attackAngle = pathAngles[direction];
			var attackDistance = 80;
			// Calculate sword position based on attack direction
			var swordX = self.x + Math.cos(attackAngle) * attackDistance;
			var swordY = self.y + Math.sin(attackAngle) * attackDistance;
			// Create sword swing effect
			var sword = game.addChild(LK.getAsset('sword', {
				anchorX: 0.5,
				anchorY: 1.0,
				x: swordX,
				y: swordY,
				rotation: attackAngle + Math.PI / 2
			}));
			// Animate sword swing
			tween(sword, {
				rotation: attackAngle + Math.PI / 2 + Math.PI / 4
			}, {
				duration: 200,
				onFinish: function onFinish() {
					sword.destroy();
				}
			});
			self.attackCooldown = 30; // 0.5 seconds at 60fps
			LK.getSound('swordHit').play();
			// Attack enemies in the specified direction/path
			for (var i = enemies.length - 1; i >= 0; i--) {
				var enemy = enemies[i];
				if (enemy.pathIndex === direction) {
					// Check if enemy is within attack range along this path
					var dx = enemy.x - self.x;
					var dy = enemy.y - self.y;
					var distance = Math.sqrt(dx * dx + dy * dy);
					if (distance < 150) {
						// Attack range
						enemy.takeDamage(50);
					}
				}
			}
			return true;
		}
		return false;
	};
	self.gainExperience = function (amount) {
		self.experience += amount;
		var expNeeded = self.level * 100;
		if (self.experience >= expNeeded) {
			self.levelUp();
		}
	};
	self.levelUp = function () {
		self.level++;
		self.experience = 0;
		// Visual level up effect
		LK.effects.flashObject(self, 0xFFD700, 500);
	};
	self.takeDamage = function (damage) {
		self.health -= damage;
		if (self.health <= 0) {
			self.health = 0;
			// Game over when health reaches 0
			LK.effects.flashScreen(0xFF0000, 1000);
			LK.showGameOver();
		}
		// Update health bar
		updateHealthBar();
		// Flash red when hit
		LK.effects.flashObject(self, 0xFF0000, 200);
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x87CEEB // Celeste (sky blue) background
});

/**** 
* Game Code
****/ 
// Game state variables
var gameStarted = false;
var gameMenu;
// Game arrays to track objects
var enemies = [];
var coins = [];
// Create and show game menu
gameMenu = game.addChild(new GameMenu());
// Create castle background
var castle = game.addChild(LK.getAsset('castle', {
	anchorX: 0.5,
	anchorY: 1.0,
	x: 2048 / 2,
	y: 2732 - 200
}));
castle.visible = false;
// Create 5 dirt paths leading toward the knight position
var paths = [];
var knightX = 2048 / 2;
var knightY = 2732 - 250;
// Create paths: center, two diagonal, and two side paths
var pathAngles = [-Math.PI / 2,
// Center (straight down)
-Math.PI / 4,
// Diagonal right
-3 * Math.PI / 4,
// Diagonal left
0,
// Right side (horizontal)
Math.PI // Left side (horizontal)
]; // 5 paths: center, two diagonal, two sides
for (var p = 0; p < 5; p++) {
	var angle = pathAngles[p];
	// Calculate path length - make center path longer
	var pathLength = p === 0 ? 3000 : 1800; // Center path is longer
	// Calculate path center position to extend from screen edge to knight
	var centerX = knightX + Math.cos(angle) * (pathLength / 2);
	var centerY = knightY + Math.sin(angle) * (pathLength / 2);
	// Create dirt path with extended length
	var path = game.addChild(LK.getAsset('dirtPath', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: centerX,
		y: centerY,
		scaleY: pathLength / 800,
		// Scale to desired length
		rotation: angle + Math.PI / 2 // Rotate path to point toward knight
	}));
	// Make paths slightly transparent so they don't overwhelm the game
	path.alpha = 0.7;
	path.visible = false;
	// Store path index for identification
	path.pathIndex = p;
	// Add touch handler for directional attacks (enemy elimination is now handled by attacks)
	path.down = function (x, y, obj) {
		// Attack in this path's direction
		knight.attack(obj.pathIndex);
		// Visual feedback - flash the path briefly
		LK.effects.flashObject(obj, 0xFFFFFF, 300);
	};
	paths.push(path);
}
// Create knight
var knight = game.addChild(new Knight());
knight.x = knightX;
knight.y = knightY;
knight.visible = false;
// UI Elements
// Removed scoreText and levelText to eliminate stray characters in top right
var coinCounter = 0;
var enemyKillCounter = 0;
var coinText = new Text2('Coins: 0', {
	size: 60,
	fill: 0xFFD700
});
coinText.anchor.set(0, 0);
LK.gui.topLeft.addChild(coinText);
coinText.x = 120;
coinText.y = 90;
coinText.visible = false;
var killCountText = new Text2('Puntuacion: 0', {
	size: 60,
	fill: 0xFF6B6B
});
killCountText.anchor.set(0, 0);
LK.gui.topLeft.addChild(killCountText);
killCountText.x = 120;
killCountText.y = 150;
killCountText.visible = false;
var tapText = new Text2('TAP TO ATTACK!', {
	size: 100,
	fill: 0xFF6B6B
});
tapText.anchor.set(0.5, 0.5);
LK.gui.center.addChild(tapText);
tapText.y = -200;
tapText.visible = false;
// Health bar UI
var healthBarBg = LK.getAsset('healthBarBg', {
	anchorX: 0,
	anchorY: 0
});
LK.gui.topLeft.addChild(healthBarBg);
healthBarBg.x = 120;
healthBarBg.y = 20;
healthBarBg.visible = false;
var healthBar = LK.getAsset('healthBar', {
	anchorX: 0,
	anchorY: 0
});
LK.gui.topLeft.addChild(healthBar);
healthBar.x = 120;
healthBar.y = 20;
healthBar.visible = false;
var healthText = new Text2('Health: 100/100', {
	size: 50,
	fill: 0xFFFFFF
});
healthText.anchor.set(0, 0);
LK.gui.topLeft.addChild(healthText);
healthText.x = 120;
healthText.y = 50;
healthText.visible = false;
function updateHealthBar() {
	var healthPercent = knight.health / knight.maxHealth;
	healthBar.scaleX = healthPercent;
	healthText.setText('Health: ' + knight.health + '/' + knight.maxHealth);
	// Change color based on health
	if (healthPercent > 0.6) {
		healthBar.tint = 0x00ff00; // Green
	} else if (healthPercent > 0.3) {
		healthBar.tint = 0xffff00; // Yellow
	} else {
		healthBar.tint = 0xff0000; // Red
	}
}
// Enemy spawning variables
var enemySpawnTimer = 0;
var enemySpawnRate = 60; // 1 second at 60fps
// Game input handling
game.down = function (x, y, obj) {
	// Check if a path was tapped for directional attack
	var pathTapped = false;
	for (var p = 0; p < paths.length; p++) {
		var path = paths[p];
		// Convert tap position to path's local coordinates
		var localPos = path.toLocal({
			x: x,
			y: y
		});
		// Check if tap is within path bounds
		if (Math.abs(localPos.x) < path.width / 2 && Math.abs(localPos.y) < path.height / 2) {
			// Attack in this path's direction
			knight.attack(path.pathIndex);
			pathTapped = true;
			break;
		}
	}
	// No default attack - player must tap a path to attack
};
// Main game update loop
game.update = function () {
	// Only update game logic if game has started
	if (!gameStarted) {
		return;
	}
	// Spawn enemies
	enemySpawnTimer++;
	if (enemySpawnTimer >= enemySpawnRate) {
		enemySpawnTimer = 0;
		var enemy = game.addChild(new Enemy());
		// Spawn enemy at a random path entrance
		var randomPathIndex;
		if (enemyKillCounter < 10) {
			// First 10 enemies spawn from center path only
			randomPathIndex = 0; // Center path
		} else if (enemyKillCounter < 30) {
			// Next 20 enemies (11-30) alternate between center and diagonal paths
			var alternatingPaths = [0, 1, 2]; // Center, diagonal right, diagonal left
			randomPathIndex = alternatingPaths[enemyKillCounter % 3];
		} else {
			// After 30 enemies, spawn from any path
			randomPathIndex = Math.floor(Math.random() * 5);
		}
		var pathAngle = pathAngles[randomPathIndex];
		// Store the path information on the enemy
		enemy.pathIndex = randomPathIndex;
		enemy.pathAngle = pathAngle;
		// Calculate spawn position at the far end of the path (screen edge)
		var pathLength = randomPathIndex === 0 ? 3000 : 1800; // Match path lengths
		var spawnDistance = pathLength * 0.8; // Spawn farther away - 80% of path length
		enemy.x = knightX + Math.cos(pathAngle) * spawnDistance;
		enemy.y = knightY + Math.sin(pathAngle) * spawnDistance;
		// Make sure enemies spawn within screen bounds
		enemy.x = Math.max(50, Math.min(1998, enemy.x));
		enemy.y = Math.max(-200, Math.min(2732 + 100, enemy.y));
		enemy.lastX = enemy.x;
		enemies.push(enemy);
		// Increase difficulty over time
		if (enemySpawnRate > 30) {
			enemySpawnRate -= 2;
		}
	}
	// Check enemy-knight collisions and cleanup off-screen enemies
	for (var i = enemies.length - 1; i >= 0; i--) {
		var enemy = enemies[i];
		// Remove enemies that went off-screen at bottom
		if (enemy.y > 2732 + 100) {
			enemies.splice(i, 1);
			enemy.destroy();
			continue;
		}
		// Initialize lastIntersecting if not set
		if (enemy.lastIntersecting === undefined) {
			enemy.lastIntersecting = false;
		}
		// Check for collision transition
		var currentIntersecting = enemy.intersects(knight);
		if (!enemy.lastIntersecting && currentIntersecting) {
			// Damage knight when enemy touches for the first time
			knight.takeDamage(20);
			// Remove enemy after dealing damage
			enemies.splice(i, 1);
			enemy.destroy();
			continue;
		}
		// Update last intersecting state
		enemy.lastIntersecting = currentIntersecting;
	}
	// Make tap text pulse
	var pulse = 1 + Math.sin(LK.ticks * 0.1) * 0.2;
	tapText.scale.set(pulse, pulse);
};
// Remove tap text after 5 seconds
tween({}, {}, {
	duration: 5000,
	onFinish: function onFinish() {
		if (tapText && tapText.parent) {
			tapText.destroy();
		}
	}
});

===================================================================
--- original.js
+++ change.js
@@ -310,9 +310,9 @@
 /**** 
 * Initialize Game
 ****/ 
 var game = new LK.Game({
-	backgroundColor: 0x2F4F2F // Dark forest green for medieval atmosphere
+	backgroundColor: 0x87CEEB // Celeste (sky blue) background
 });
 
 /**** 
 * Game Code