Singularity is a sprite sheet maker . Just point it to a folder of images and it will generate a sprite sheet with the folders name along with a lua file with sprite sizes and positions in the sprite sheet. Singularity currently works with .jpg, .png and .bmp files.
For help
Singularity -h
To actually use.
Singularity -p 2 -f "Path/to/sprite/folder" -s "save/to/this/folder"
Copyright 2012 Daniel Hartnett
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.