mirror of
https://github.com/photonstorm/phaser
synced 2024-12-20 18:14:13 +00:00
51 lines
2.2 KiB
JavaScript
51 lines
2.2 KiB
JavaScript
/**
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* @author Richard Davey <rich@photonstorm.com>
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* @copyright 2016 Photon Storm Ltd.
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* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
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*/
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/**
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* The SpriteBatch class is a really fast version of the DisplayObjectContainer built purely for speed, so use when you need a lot of sprites or particles.
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* It's worth mentioning that by default sprite batches are used through-out the renderer, so you only really need to use a SpriteBatch if you have over
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* 1000 sprites that all share the same texture (or texture atlas). It's also useful if running in Canvas mode and you have a lot of un-rotated or un-scaled
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* Sprites as it skips all of the Canvas setTransform calls, which helps performance, especially on mobile devices.
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*
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* Please note that any Sprite that is part of a SpriteBatch will not have its bounds updated, so will fail checks such as outOfBounds.
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*
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* @class Phaser.GameObject.SpriteBatch
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* @extends Phaser.Group
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* @constructor
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* @param {Phaser.Game} game - A reference to the currently running game.
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* @param {Phaser.Group|Phaser.Sprite|null} parent - The parent Group, DisplayObject or DisplayObjectContainer that this Group will be added to. If `undefined` or `null` it will use game.world.
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* @param {string} [name=group] - A name for this Group. Not used internally but useful for debugging.
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* @param {boolean} [addToStage=false] - If set to true this Group will be added directly to the Game.Stage instead of Game.World.
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*/
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Phaser.GameObject.SpriteBatch = function (game, parent, name, addToStage) {
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if (parent === undefined || parent === null) { parent = game.world; }
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Phaser.Group.call(this, game, parent, name, addToStage);
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/**
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* @property {number} type - Internal Phaser Type value.
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* @protected
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*/
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this.type = Phaser.SPRITEBATCH;
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/**
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* @property {Object} fastSpriteBatch - WebGL Batch Shader.
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* @private
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*/
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this.fastSpriteBatch = null;
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/**
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* @property {boolean} ready - Internal flag.
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* @private
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*/
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this.ready = false;
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};
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Phaser.GameObject.SpriteBatch.prototype = Object.create(Phaser.Group.prototype);
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Phaser.GameObject.SpriteBatch.prototype.constructor = Phaser.GameObject.SpriteBatch;
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