package;

import flixel.FlxG;
import flixel.FlxSprite;
import flixel.FlxState;
import flixel.group.FlxSpriteGroup;
import flixel.util.FlxColor;
import flixel.util.FlxSignal;

class PlayState extends FlxState
{
    var signal:FlxSignal;
    var gameStart = false;
    var wallGroup:FlxSpriteGroup;
    var paddle:FlxSprite;
    var ball:FlxSprite;

    var lives = 3;

    override public function create():Void
    {
        super.create();

        createWalls();
        createPaddle();
        createBall();
        createBricks();
        addSignals();
    }

    function createWalls()
    {
        wallGroup = new FlxSpriteGroup(0, 0, 4);

        var wall_up = new FlxSprite();
        wall_up.makeGraphic(FlxG.width, 30, FlxColor.TRANSPARENT);
        wall_up.setPosition(0, -wall_up.height);
        wallGroup.add(wall_up);

        var wall_down = new FlxSprite();
        wall_down.loadGraphicFromSprite(wall_up);
        wall_down.setPosition(0, FlxG.height);
        wall_down.ID = 2;
        wallGroup.add(wall_down);

        var wall_left = new FlxSprite();
        wall_left.makeGraphic(30, FlxG.height);
        wall_left.setPosition(-wall_left.width, 0);
        wallGroup.add(wall_left);

        var wall_right = new FlxSprite();
        wall_right.loadGraphicFromSprite(wall_left);
        wall_right.setPosition(FlxG.width, 0);
        wallGroup.add(wall_right);

        for (wall in wallGroup)
        {
            wall.immovable = true;
        }

        add(wallGroup);
    }

    function addSignals()
    {
        signal = new FlxSignal();
        signal.add(startGame);
        signal.dispatch();
    }

    function startGame()
    {
        var randomSpeed = FlxG.random.int(100, 300);
        var direction_X = FlxG.random.bool(50) ? randomSpeed : -randomSpeed;
        var direction_Y = FlxG.random.bool(50) ? randomSpeed : -randomSpeed;
        ball.screenCenter();
        ball.velocity.set(direction_X, direction_Y);
    }

    function createPaddle()
    {
        paddle = new FlxSprite();
        paddle.makeGraphic(140, 8, FlxColor.YELLOW);
        paddle.setPosition(10, 460);
        paddle.immovable = true;
        add(paddle);
    }

    function createBall()
    {
        ball = new FlxSprite();
        ball.makeGraphic(15, 15, FlxColor.YELLOW);
        ball.screenCenter();
        ball.elasticity = 1.0;
        add(ball);
    }

    function createBricks()
    {

    }

    override public function update(elapsed:Float):Void
    {
        handleMovement();

        super.update(elapsed);

        FlxG.collide(ball, wallGroup, checkLoss);
        FlxG.collide(ball, paddle);
    }

    function checkLoss(obj1:FlxSprite, obj2:FlxSprite)
    {
        trace("hit a wall");
        if (obj2.ID == 2 || obj1.ID == 2)
        {
            trace("HIT LOSING WALL");
            lives--;
            startGame();

            if (lives <= 0)
            {
                trace("congrats you're a failure");
                FlxG.resetState();
            }
        }
    }

    function handleMovement()
    {
        var left = FlxG.keys.anyPressed([A, LEFT]);
        var right = FlxG.keys.anyPressed([D, RIGHT]);

        var speed = 250;

        if (left && !right)
            paddle.velocity.set(-speed, 0);
        if (right && !left)
            paddle.velocity.set(speed, 0);
        if (!left && !right || left && right)
        {
            if (paddle.velocity.x != 0)
                paddle.velocity.set(0, 0);
        }
    }
}