phaser/src/gameobjects/BuildGameObject.js at 616d17fa83b2b60bcb13b61858105ca1f0b67a7c · ITCSsDeveloper/phaser · GitHub

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/**
 * @author       Richard Davey <rich@photonstorm.com>
 * @copyright    2018 Photon Storm Ltd.
 * @license      {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
 */

var BlendModes = require('../renderer/BlendModes');
var GetAdvancedValue = require('../utils/object/GetAdvancedValue');
var ScaleModes = require('../renderer/ScaleModes');

/**
 * @typedef {object} GameObjectConfig
 *
 * @property {number} [x=0] - [description]
 * @property {number} [y=0] - [description]
 * @property {number} [depth=0] - [description]
 * @property {boolean} [flipX=false] - [description]
 * @property {boolean} [flipY=false] - [description]
 * @property {?(number|object)} [scale=null] - [description]
 * @property {?(number|object)} [scrollFactor=null] - [description]
 * @property {number} [rotation=0] - [description]
 * @property {?number} [angle=null] - [description]
 * @property {number} [alpha=1] - [description]
 * @property {?(number|object)} [origin=null] - [description]
 * @property {number} [scaleMode=ScaleModes.DEFAULT] - [description]
 * @property {number} [blendMode=BlendModes.DEFAULT] - [description]
 * @property {boolean} [visible=true] - [description]
 * @property {boolean} [add=true] - [description]
 */

/**
 * Builds a Game Object using the provided configuration object.
 *
 * @function Phaser.GameObjects.BuildGameObject
 * @since 3.0.0
 *
 * @param {Phaser.Scene} scene - [description]
 * @param {Phaser.GameObjects.GameObject} gameObject - [description]
 * @param {GameObjectConfig} config - [description]
 *
 * @return {Phaser.GameObjects.GameObject} The built Game Object.
 */
var BuildGameObject = function (scene, gameObject, config)
{
    //  Position

    gameObject.x = GetAdvancedValue(config, 'x', 0);
    gameObject.y = GetAdvancedValue(config, 'y', 0);
    gameObject.depth = GetAdvancedValue(config, 'depth', 0);

    //  Flip

    gameObject.flipX = GetAdvancedValue(config, 'flipX', false);
    gameObject.flipY = GetAdvancedValue(config, 'flipY', false);

    //  Scale
    //  Either: { scale: 2 } or { scale: { x: 2, y: 2 }}

    var scale = GetAdvancedValue(config, 'scale', null);

    if (typeof scale === 'number')
    {
        gameObject.setScale(scale);
    }
    else if (scale !== null)
    {
        gameObject.scaleX = GetAdvancedValue(scale, 'x', 1);
        gameObject.scaleY = GetAdvancedValue(scale, 'y', 1);
    }

    //  ScrollFactor
    //  Either: { scrollFactor: 2 } or { scrollFactor: { x: 2, y: 2 }}

    var scrollFactor = GetAdvancedValue(config, 'scrollFactor', null);

    if (typeof scrollFactor === 'number')
    {
        gameObject.setScrollFactor(scrollFactor);
    }
    else if (scrollFactor !== null)
    {
        gameObject.scrollFactorX = GetAdvancedValue(scrollFactor, 'x', 1);
        gameObject.scrollFactorY = GetAdvancedValue(scrollFactor, 'y�
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39;, 1);
    }

    //  Rotation

    gameObject.rotation = GetAdvancedValue(config, 'rotation', 0);

    var angle = GetAdvancedValue(config, 'angle', null);

    if (angle !== null)
    {
        gameObject.angle = angle;
    }

    //  Alpha

    gameObject.alpha = GetAdvancedValue(config, 'alpha', 1);

    //  Origin
    //  Either: { origin: 0.5 } or { origin: { x: 0.5, y: 0.5 }}

    var origin = GetAdvancedValue(config, 'origin', null);

    if (typeof origin === 'number')
    {
        gameObject.setOrigin(origin);
    }
    else if (origin !== null)
    {
        var ox = GetAdvancedValue(origin, 'x', 0.5);
        var oy = GetAdvancedValue(origin, 'y', 0.5);

        gameObject.setOrigin(ox, oy);
    }

    //  ScaleMode

    gameObject.scaleMode = GetAdvancedValue(config, 'scaleMode', ScaleModes.DEFAULT);

    //  BlendMode

    gameObject.blendMode = GetAdvancedValue(config, 'blendMode', BlendModes.NORMAL);

    //  Visible

    gameObject.visible = GetAdvancedValue(config, 'visible', true);

    //  Add to Scene

    var add = GetAdvancedValue(config, 'add', true);

    if (add)
    {
        scene.sys.displayList.add(gameObject);
    }

    if (gameObject.preUpdate)
    {
        scene.sys.updateList.add(gameObject);
    }

    return gameObject;
};

module.exports = BuildGameObject;