Quadtastic

A tool to manage sprite sheets and color palettes.

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Features

• Create quads straight on your spritesheet -- no need to ever type out coordinates again
• Keep your quads neatly organized by giving them descriptive names and grouping them
• Use the wand tool to create quads from opaque areas automatically
• Use the palette tool to create quads from areas that have the same color
• Save quads as a simple lua table, or export them to formats like JSON or XML
• Enable to reload the spritesheet whenever it changes on disk, and to re-export the quads whenever you change them

If you're using LÖVE:

• Save your quads as a lua table, and turn them into LÖVE Quad objects with just a few lines of code:

    local libquadtastic = require("libquadtastic")
  
    local image = love.graphics.newImage("res/sprites.png")
    local raw_quads = require("res/quads")
    local quads = libquadtastic.import_quads(raw_quads,
                                             image:getWidth(),
                                             image:getHeight())

• You can then draw these quads like so:

    love.graphics.draw(image, quads.head, 2, 0)
    love.graphics.draw(image, quads.legs, 2, 47)
    love.graphics.draw(image, quads.torso, 0, 15)

Acknowledgements

Special thanks to the awesome people that contributed to the development of Quadtastic via pull requests, bug reports, feature suggestions, and constructive discussions!

Credits and tools used

• LÖVE
• The m5x7 and m3x6 fonts by Daniel Linssen
• aseprite by David Kapello. Oh, also, the pixelated Quadtastic UI is my lousy attempt to create something similar to the gorgeous UI in aseprite.
• luafilesystem
• lovedebug by kalle2990, maintained by Ranguna
• inspect.lua by Enrique García Cota
• Nuklear for guidance on how to write IMGUI
• affine by Minh Ngo, for reverse transformation
• xform by pgimeno, for practical ideas related to reverse transformation