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

/**** 
* Classes
****/ 
// Obstacle class
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	var obs = self.attachAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Speed will be set on creation
	self.speed = 0;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
// Player class
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerSprite = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// For possible future effects
	self.flash = function () {
		LK.effects.flashObject(self, 0xffff00, 300);
	};
	return self;
});
// Point (collectible) class
var PointItem = Container.expand(function () {
	var self = Container.call(this);
	var pt = self.attachAsset('point', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 0;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000000
});

/**** 
* Game Code
****/ 
// Camera background asset (used by facekit plugin)
// Point: Green circle
// Obstacle: Red rectangles
// Character: A bright ellipse for the player
// Game constants
var GAME_WIDTH = 2048;
var GAME_HEIGHT = 2732;
var PLAYER_Y = GAME_HEIGHT - 400; // Player stays near bottom
var OBSTACLE_MIN_SPEED = 10;
var OBSTACLE_MAX_SPEED = 28;
var OBSTACLE_SPAWN_INTERVAL = 60; // in ticks (~1s)
var POINT_SPAWN_INTERVAL = 90; // in ticks (~1.5s)
var DIFFICULTY_INCREASE_INTERVAL = 600; // every 10s
var OBSTACLE_WIDTH = 180;
var OBSTACLE_HEIGHT = 80;
var POINT_SIZE = 80;
// Game state
var player;
var obstacles = [];
var points = [];
var score = 0;
var scoreTxt;
var ticksSinceLastObstacle = 0;
var ticksSinceLastPoint = 0;
var gameSpeed = 1;
var lastMouthX = GAME_WIDTH / 2;
var lastMouthY = PLAYER_Y;
var lastIntersectingObstacle = false;
var lastIntersectingPoint = false;
// Set up background to be camera feed
game.setBackgroundColor(0x000000); // Black, but facekit will show camera
// Score display
scoreTxt = new Text2('0', {
	size: 120,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Create player
player = new Player();
player.x = GAME_WIDTH / 2;
player.y = PLAYER_Y;
game.addChild(player);
// Helper: Clamp value
function clamp(val, min, max) {
	if (val < min) return min;
	if (val > max) return max;
	return val;
}
// Helper: Random X for obstacles/points
function randomX(margin) {
	return margin + Math.random() * (GAME_WIDTH - 2 * margin);
}
// Main update loop
game.update = function () {
	// --- Face tracking: Move player ---
	// Use mouth center if available, else nose tip
	var faceX = facekit.mouthCenter && facekit.mouthCenter.x ? facekit.mouthCenter.x : facekit.noseTip && facekit.noseTip.x ? facekit.noseTip.x : lastMouthX;
	var faceY = facekit.mouthCenter && facekit.mouthCenter.y ? facekit.mouthCenter.y : facekit.noseTip && facekit.noseTip.y ? facekit.noseTip.y : lastMouthY;
	// Clamp to game area, keep player near bottom
	var targetX = clamp(faceX, 60, GAME_WIDTH - 60);
	var targetY = PLAYER_Y;
	// Smooth movement (optional, can be direct for more responsive)
	player.x += (targetX - player.x) * 0.35;
	player.y = targetY;
	lastMouthX = faceX;
	lastMouthY = faceY;
	// --- Spawn obstacles ---
	ticksSinceLastObstacle++;
	if (ticksSinceLastObstacle >= Math.max(OBSTACLE_SPAWN_INTERVAL - Math.floor(gameSpeed * 5), 30)) {
		var obs = new Obstacle();
		obs.x = randomX(OBSTACLE_WIDTH / 2 + 40);
		obs.y = -OBSTACLE_HEIGHT / 2;
		obs.speed = OBSTACLE_MIN_SPEED + Math.random() * (OBSTACLE_MAX_SPEED - OBSTACLE_MIN_SPEED) * (0.7 + 0.3 * gameSpeed);
		obstacles.push(obs);
		game.addChild(obs);
		ticksSinceLastObstacle = 0;
	}
	// --- Spawn points ---
	ticksSinceLastPoint++;
	if (ticksSinceLastPoint >= Math.max(POINT_SPAWN_INTERVAL - Math.floor(gameSpeed * 5), 40)) {
		var pt = new PointItem();
		pt.x = randomX(POINT_SIZE / 2 + 40);
		pt.y = -POINT_SIZE / 2;
		pt.speed = OBSTACLE_MIN_SPEED + Math.random() * 8 * (0.7 + 0.3 * gameSpeed);
		points.push(pt);
		game.addChild(pt);
		ticksSinceLastPoint = 0;
	}
	// --- Move obstacles, check collision ---
	for (var i = obstacles.length - 1; i >= 0; i--) {
		var obs = obstacles[i];
		obs.update();
		// Remove if off screen
		if (obs.y - OBSTACLE_HEIGHT / 2 > GAME_HEIGHT + 100) {
			obs.destroy();
			obstacles.splice(i, 1);
			continue;
		}
		// Collision with player
		var intersecting = player.intersects(obs);
		if (intersecting) {
			// Flash screen, show game over
			LK.effects.flashScreen(0xff0000, 800);
			LK.showGameOver();
			return;
		}
	}
	// --- Move points, check collection ---
	for (var j = points.length - 1; j >= 0; j--) {
		var pt = points[j];
		pt.update();
		// Remove if off screen
		if (pt.y - POINT_SIZE / 2 > GAME_HEIGHT + 100) {
			pt.destroy();
			points.splice(j, 1);
			continue;
		}
		// Collection
		var intersecting = player.intersects(pt);
		if (intersecting) {
			// Flash player
			player.flash();
			score += 1;
			scoreTxt.setText(score);
			pt.destroy();
			points.splice(j, 1);
			continue;
		}
	}
	// --- Increase difficulty over time ---
	if (LK.ticks % DIFFICULTY_INCREASE_INTERVAL === 0) {
		gameSpeed += 0.15;
	}
};
// No touch/drag controls needed; all movement is via facekit
// Reset state on game over (handled by LK automatically)
LK.setScore(0); // For leaderboard integration
// End of file