mirror of
https://github.com/photonstorm/phaser
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130 lines
3.8 KiB
JavaScript
130 lines
3.8 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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* An Image Collection is a special tileset containing mulitple images, with no slicing into each image.
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*
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* Image Collections are normally created automatically when Tiled data is loaded.
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*
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* @class Phaser.ImageCollection
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* @constructor
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* @param {string} name - The name of the image collection in the map data.
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* @param {integer} firstgid - The first image index this image collection contains.
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* @param {integer} [width=32] - Width of widest image (in pixels).
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* @param {integer} [height=32] - Height of tallest image (in pixels).
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* @param {integer} [margin=0] - The margin around all images in the collection (in pixels).
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* @param {integer} [spacing=0] - The spacing between each image in the collection (in pixels).
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* @param {object} [properties={}] - Custom Image Collection properties.
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*/
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Phaser.ImageCollection = function (name, firstgid, width, height, margin, spacing, properties) {
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if (width === undefined || width <= 0) { width = 32; }
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if (height === undefined || height <= 0) { height = 32; }
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if (margin === undefined) { margin = 0; }
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if (spacing === undefined) { spacing = 0; }
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/**
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* The name of the Image Collection.
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* @property {string} name
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*/
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this.name = name;
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/**
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* The Tiled firstgid value.
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* This is the starting index of the first image index this Image Collection contains.
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* @property {integer} firstgid
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*/
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this.firstgid = firstgid | 0;
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/**
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* The width of the widest image (in pixels).
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* @property {integer} imageWidth
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* @readonly
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*/
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this.imageWidth = width | 0;
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/**
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* The height of the tallest image (in pixels).
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* @property {integer} imageHeight
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* @readonly
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*/
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this.imageHeight = height | 0;
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/**
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* The margin around the images in the collection (in pixels).
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* Use `setSpacing` to change.
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* @property {integer} imageMarge
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* @readonly
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*/
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// Modified internally
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this.imageMargin = margin | 0;
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/**
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* The spacing between each image in the collection (in pixels).
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* Use `setSpacing` to change.
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* @property {integer} imageSpacing
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* @readonly
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*/
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this.imageSpacing = spacing | 0;
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/**
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* Image Collection-specific properties that are typically defined in the Tiled editor.
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* @property {object} properties
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*/
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this.properties = properties || {};
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/**
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* The cached images that are a part of this collection.
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* @property {array} images
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* @readonly
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*/
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// Modified internally
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this.images = [];
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/**
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* The total number of images in the image collection.
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* @property {integer} total
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* @readonly
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*/
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// Modified internally
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this.total = 0;
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};
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Phaser.ImageCollection.prototype = {
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/**
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* Returns true if and only if this image collection contains the given image index.
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*
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* @method Phaser.ImageCollection#containsImageIndex
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* @param {integer} imageIndex - The image index to search for.
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* @return {boolean} True if this Image Collection contains the given index.
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*/
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containsImageIndex: function (imageIndex) {
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return (
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imageIndex >= this.firstgid &&
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imageIndex < (this.firstgid + this.total)
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);
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},
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/**
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* Add an image to this Image Collection.
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*
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* @method Phaser.ImageCollection#addImage
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* @param {integer} gid - The gid of the image in the Image Collection.
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* @param {string} image - The the key of the image in the Image Collection and in the cache.
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*/
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addImage: function (gid, image) {
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this.images.push({ gid: gid, image: image });
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this.total++;
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}
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};
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Phaser.ImageCollection.prototype.constructor = Phaser.ImageCollection;
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