phaser/src/textures/parsers/JSONHash.js
2018-10-10 10:49:13 +01:00

93 lines
2.6 KiB
JavaScript

/**
* @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 Clone = require('../../utils/object/Clone');
/**
* Parses a Texture Atlas JSON Hash and adds the Frames to the Texture.
* JSON format expected to match that defined by Texture Packer, with the frames property containing an object of Frames.
*
* @function Phaser.Textures.Parsers.JSONHash
* @memberof Phaser.Textures.Parsers
* @private
* @since 3.0.0
*
* @param {Phaser.Textures.Texture} texture - The Texture to add the Frames to.
* @param {integer} sourceIndex - The index of the TextureSource.
* @param {object} json - The JSON data.
*
* @return {Phaser.Textures.Texture} The Texture modified by this parser.
*/
var JSONHash = function (texture, sourceIndex, json)
{
// Malformed?
if (!json['frames'])
{
console.warn('Invalid Texture Atlas JSON Hash given, missing \'frames\' Object');
return;
}
// Add in a __BASE entry (for the entire atlas)
var source = texture.source[sourceIndex];
texture.add('__BASE', sourceIndex, 0, 0, source.width, source.height);
// By this stage frames is a fully parsed Object
var frames = json['frames'];
var newFrame;
for (var key in frames)
{
var src = frames[key];
// The frame values are the exact coordinates to cut the frame out of the atlas from
newFrame = texture.add(key, sourceIndex, src.frame.x, src.frame.y, src.frame.w, src.frame.h);
// These are the original (non-trimmed) sprite values
if (src.trimmed)
{
newFrame.setTrim(
src.sourceSize.w,
src.sourceSize.h,
src.spriteSourceSize.x,
src.spriteSourceSize.y,
src.spriteSourceSize.w,
src.spriteSourceSize.h
);
}
if (src.rotated)
{
newFrame.rotated = true;
newFrame.updateUVsInverted();
}
// Copy over any extra data
newFrame.customData = Clone(src);
}
// Copy over any additional data that was in the JSON to Texture.customData
for (var dataKey in json)
{
if (dataKey === 'frames')
{
continue;
}
if (Array.isArray(json[dataKey]))
{
texture.customData[dataKey] = json[dataKey].slice(0);
}
else
{
texture.customData[dataKey] = json[dataKey];
}
}
return texture;
};
module.exports = JSONHash;