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

/**** 
* Classes
****/ 
var Archer = Container.expand(function () {
	var self = Container.call(this);
	var archerGraphics = self.attachAsset('archer', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	return self;
});
var Arrow = Container.expand(function () {
	var self = Container.call(this);
	var arrowGraphics = self.attachAsset('arrow', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speedX = 0;
	self.speedY = 0;
	self.update = function () {
		self.x += self.speedX;
		self.y += self.speedY;
	};
	return self;
});
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -2;
	self.update = function () {
		self.x += self.speed;
	};
	return self;
});

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

/**** 
* Game Code
****/ 
var archer = game.addChild(new Archer());
archer.x = 150;
archer.y = 2732 / 2;
var arrows = [];
var enemies = [];
var enemySpawnTimer = 0;
var enemySpawnRate = 120; // frames between spawns
var energy = 100;
var energyRegenTimer = 0;
var isShooting = false;
var shootingTimer = 0;
var scoreTxt = new Text2('0', {
	size: 100,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
scoreTxt.setText(LK.getScore());
var energyTxt = new Text2('Energy: 100', {
	size: 80,
	fill: 0x00ff00
});
energyTxt.anchor.set(1, 0);
LK.gui.topRight.addChild(energyTxt);
energyTxt.x = -20;
energyTxt.y = 20;
var autoShootTimer = 0;
function shootArrowAtTarget(targetX, targetY) {
	// Check if player has enough energy
	if (energy <= 0) {
		return;
	}
	// Calculate direction from archer to target point
	var dirX = targetX - archer.x;
	var dirY = targetY - archer.y;
	var distance = Math.sqrt(dirX * dirX + dirY * dirY);
	// Normalize direction
	var normalX = dirX / distance;
	var normalY = dirY / distance;
	// Create arrow
	var newArrow = new Arrow();
	newArrow.x = archer.x;
	newArrow.y = archer.y;
	newArrow.speedX = normalX * 15;
	newArrow.speedY = normalY * 15;
	// Rotate arrow to face direction
	newArrow.rotation = Math.atan2(normalY, normalX);
	arrows.push(newArrow);
	game.addChild(newArrow);
	LK.getSound('shoot').play();
	// Decrease energy
	energy -= 2;
	// Set shooting state
	isShooting = true;
	shootingTimer = 0;
	// Update energy display
	energyTxt.setText('Energy: ' + energy);
	// Change color based on energy level
	if (energy <= 20) {
		energyTxt.tint = 0xff0000; // Red when low
	} else if (energy <= 50) {
		energyTxt.tint = 0xffff00; // Yellow when medium
	} else {
		energyTxt.tint = 0x00ff00; // Green when high
	}
}
game.update = function () {
	// Automatic shooting logic
	autoShootTimer++;
	if (autoShootTimer >= 45 && energy > 0) {
		// Shoot every 0.75 seconds if energy available
		autoShootTimer = 0;
		// Find nearest enemy
		var nearestEnemy = null;
		var nearestDistance = Infinity;
		for (var e = 0; e < enemies.length; e++) {
			var enemy = enemies[e];
			var distanceToEnemy = Math.sqrt(Math.pow(enemy.x - archer.x, 2) + Math.pow(enemy.y - archer.y, 2));
			if (distanceToEnemy < nearestDistance) {
				nearestDistance = distanceToEnemy;
				nearestEnemy = enemy;
			}
		}
		// Shoot at nearest enemy if found
		if (nearestEnemy) {
			shootArrowAtTarget(nearestEnemy.x, nearestEnemy.y);
		}
	}
	// Update shooting timer
	if (isShooting) {
		shootingTimer++;
		if (shootingTimer >= 30) {
			// Stop shooting state after 0.5 seconds
			isShooting = false;
		}
	}
	// Update energy regeneration only when not shooting (every 60 frames = 1 second at 60 FPS)
	if (!isShooting) {
		energyRegenTimer++;
		if (energyRegenTimer >= 60) {
			energyRegenTimer = 0;
			if (energy < 100) {
				energy += 1;
				// Update energy display
				energyTxt.setText('Energy: ' + energy);
				// Change color based on energy level
				if (energy <= 20) {
					energyTxt.tint = 0xff0000; // Red when low
				} else if (energy <= 50) {
					energyTxt.tint = 0xffff00; // Yellow when medium
				} else {
					energyTxt.tint = 0x00ff00; // Green when high
				}
			}
		}
	} else {
		energyRegenTimer = 0; // Reset regen timer when shooting
	}
	// Update enemy spawn timer
	enemySpawnTimer++;
	if (enemySpawnTimer >= enemySpawnRate) {
		enemySpawnTimer = 0;
		// Spawn new enemy
		var newEnemy = new Enemy();
		newEnemy.x = 2048 + 50;
		newEnemy.y = Math.random() * (2732 - 200) + 100;
		enemies.push(newEnemy);
		game.addChild(newEnemy);
		// Increase difficulty over time
		if (enemySpawnRate > 30) {
			enemySpawnRate -= 0.5;
		}
	}
	// Update arrows
	for (var i = arrows.length - 1; i >= 0; i--) {
		var arrow = arrows[i];
		// Remove arrows that go off screen
		if (arrow.x > 2100 || arrow.x < -50 || arrow.y > 2800 || arrow.y < -50) {
			arrow.destroy();
			arrows.splice(i, 1);
			continue;
		}
		// Check arrow-enemy collisions
		for (var j = enemies.length - 1; j >= 0; j--) {
			var enemy = enemies[j];
			if (arrow.intersects(enemy)) {
				// Hit enemy
				LK.setScore(LK.getScore() + 10);
				scoreTxt.setText(LK.getScore());
				LK.getSound('hit').play();
				LK.effects.flashObject(enemy, 0xff0000, 200);
				// Remove arrow and enemy
				arrow.destroy();
				arrows.splice(i, 1);
				enemy.destroy();
				enemies.splice(j, 1);
				break;
			}
		}
	}
	// Update enemies and check if they reached the archer
	for (var k = enemies.length - 1; k >= 0; k--) {
		var enemy = enemies[k];
		// Check if enemy reached archer
		if (enemy.x <= archer.x + 50) {
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
			return;
		}
	}
};