phaser/examples/groups/recyling.php

 
 <?php
    $title = "Recycling inside a group";
    require('../head.php');
?>

<script type="text/javascript">

(function () {

    var game = new Phaser.Game(800, 600, Phaser.CANVAS, '', { preload: preload, create: create,render:render});


    var enemies;

    function preload() {

        game.load.image('baddie', 'assets/sprites/space-baddie.png');
        game.load.spritesheet('button', 'assets/buttons/baddie-buttons.png', 224, 70);
        
    }
    function create() {
        // Create a enemies group to store the baddies
        enemies = game.add.group();

        // Create some enemies.
        for (var i = 0; i < 8; i++) {
            // Since the getFirstExists() which we'll use for recycling
            // cannot allocate new objects, create them manually here.
            enemies.create(360 + Math.random() * 200, 120 + Math.random() * 200,
                'baddie');
        }

        // Create buttons to create and kill baddies.
        game.add.button(16, 50, 'button', createBaddie,this, 0, 0, 0);
        game.add.button(16, 130, 'button', killBaddie,this, 1, 1, 1);
    }
    function killBaddie() {

        var baddie = enemies.getFirstAlive();
        if (baddie) baddie.kill();


    }
    function createBaddie() {

        // Recycle using getFirstExists(false)
        // Notice that this method will not create new objects if there's no one
        // available, and it won't change size of this group.
        var enemy = enemies.getFirstExists(false);
        if (enemy) {
            enemy.revive();
        }
    }


    function render() {

        game.debug.renderText('Recycle baddies from a group using getFirstExists.', 16, 24);
        game.debug.renderText('Notice that you cannot add more than 8 baddies since we only create 8 instance.', 16, 36);
        game.debug.renderText('Living baddies: ' + (enemies.countLiving()+1), 340, 420);
    }

})();

</script>

<?php
    require('../foot.php');
?>