Options.stylesheet does not accept `javascript` about node-sprite-generator

[navjeetfgmnt]

@elmpp did you find a sol to this?

[timohausmann]

Same, there is no "javascript" template in this repository.
I found two workarounds, these examples will create a json format, adjust the output to your likings.

Workaround 1: write custom output function

I think the easiest way is to set options.stylesheet to a custom function:

var nsg = require('node-sprite-generator');
var fs = require('fs');

nsg({
    src: [
        'faces-128/*.jpg'
    ],
    spritePath: 'faces-128/all.png',
    stylesheetPath: 'faces-128/all.json',
    stylesheet: function(layout, stylesheetPath, spritePath, options, callback) {
      const data = layout.images.map((img) => {
        const {x, y, width, height, path} = img;
        return { x, y, width, height, path }
      })

      fs.writeFileSync(stylesheetPath, JSON.stringify(data, null, 2))
    },
    compositor: 'jimp'
}, function (err) {
    console.log('Sprite generated!');
});

Workaround 2: add missing templates

You can also create the missing templates.

create new file node-sprite-generator/lib/stylesheet/javascript.js:

'use strict';

var getTemplatedStylesheet = require('./templatedStylesheet'),
    path = require('path');

module.exports = getTemplatedStylesheet(path.join(__dirname, '/templates/javascript.tpl'));

create new file node-sprite-generator/lib/stylesheet/templates/javascript.tpl:

[<% layout.images.forEach(function (image) { %>
  {
    "path": "<%= image.path %>",
    "x": <%= image.x %>,
    "y": <%= image.y %>,
    "width": <%= image.width %>,
    "height": <%= image.height %>
  }, <% }); %>
]