phaser/index-2.html at master · ShadrinIgor/phaser · GitHub

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<!doctype html>
<html>
<head>
    <meta charset="utf-8"/>
</head>
<body>
<script src="phaser-pong/phaser.js"></script>
<script type="text/javascript">
    var game = new Phaser.Game(405, 405, Phaser.AUTO, '', { preload: preload, create: create, update: update });

    var playerBet;
    var computerBet;
    var ball;

    var computerBetSpeed = 190;
    var ballSpeed = 300;
    var ballReleased = false;

    function preload() {
        game.load.image('bet', 'phaser-pong/assets/bet.png');
        game.load.image('ball', 'phaser-pong/assets/ball.png');
        game.load.image('background', 'phaser-pong/assets/sky.png');
    }
    function create() {
        game.add.tileSprite(0, 0, 405, 405, 'background');
        playerBet = createBet(game.world.centerX, 385);
        computerBet = createBet(game.world.centerX, 20);

        ball = game.add.sprite(game.world.centerX, game.world.centerY, 'ball');
        game.physics.startSystem(Phaser.Physics.ARCADE);
        //game.physics.enable(ball);
        game.physics.arcade.enable(ball);
        ball.anchor.setTo(0.5, 0.5);
        ball.body.collideWorldBounds = true;
        ball.body.bounce.setTo(1, 1);

        game.input.onDown.add(releaseBall, this);
    }

    function update () {
        //Управляем ракеткой игрока
        playerBet.x = game.input.x;

        var playerBetHalfWidth = playerBet.width / 2;

        if (playerBet.x < playerBetHalfWidth) {
            playerBet.x = playerBetHalfWidth;
        }
        else if (playerBet.x > game.width - playerBetHalfWidth) {
            playerBet.x = game.width - playerBetHalfWidth;
        }

        //Управляем ракеткой компьютерного соперника
        if(computerBet.x - ball.x < -15) {
            computerBet.body.velocity.x = computerBetSpeed;
        }
        else if(computerBet.x - ball.x > 15) {
            computerBet.body.velocity.x = -computerBetSpeed;
        }
        else {
            computerBet.body.velocity.x = 0;
        }

        //
        //Проверяем и обрабатываем столкновения мячика и ракеток
        game.physics.arcade.collide(ball, playerBet, ballHitsBet, null, this);
        game.physics.arcade.collide(ball, computerBet, ballHitsBet, null, this);

        //Проверяем, не забил ли кто-то гол
        checkGoal();
    }

    function createBet(x, y) {
        var bet = game.add.sprite(x, y, 'bet');
        game.physics.enable( bet );
        bet.anchor.setTo(0.5, 0.5);
        bet.body.collideWorldBounds = true;
        bet.body.bounce.setTo(1, 1);
        bet.body.immovable = true;

        return bet;
    }

    function releaseBall() {
        if (!ballReleased) {
            ball.body.velocity.x = ballSpeed;
            ball.body.velocity.y = -ballSpeed;
            ballReleased = true;
        }
    }

    function ballHitsBet (_ball, _bet) {
        var diff = 0;

        if (_ball.x < _bet.x) {
            //  Шарик находится с левой стороны ракетки
            diff = _bet.x - _ball.x;
            _ball.body.velocity.x = (-10 * diff);
        }
        else if (_ball.x > _bet.x) {
            //  Шарик находится с правой стороны ракетки
            diff = _ball.x -_bet.x;
            _ball.body.velocity.x = (10 * diff);
        }
        else {
            //  Шарик попал в центр ракетки, добавляем немножко трагической случайности его движению
            _ball.body.velocity.x = 2 + Math.random() * 8;
        }
    }
    function checkGoal() {
        if (ball.y < 15) {
            setBall();
        } else if (ball.y > 405) {
            setBall();
        }
    }

    function setBall() {
        if (ballReleased) {
            ball.x = game.world.centerX;
            ball.y = game.world.centerY;
            ball.body.velocity.x = 0;
            ball.body.velocity.y = 0;
            ballReleased = false;
        }

    }
</script>
</body>
</html>