GIMP plugin to save layer info to a format used by Kitty Town engine

save_rects.py

#!/usr/bin/env python

from gimpfu import *

def get_layer_fields(layer):
    return [layer.name,
            str(layer.offsets[0]),
            str(layer.offsets[1]),
            str(layer.width),
            str(layer.height)]

def write_layers(layers, file, prefix=''):
    for layer in layers:
        # If this layer is actually a layer group
        if hasattr(layer, 'layers'):
            write_layers(layer.layers, file, layer.name + '-')
        else:
            fields = get_layer_fields(layer)
            fields[0] = prefix + fields[0]

        file.write(','.join(fields) + '\n')

# This is the function that will perform actual actions
def save_rects(image, layer, filename):
    file = open(filename, 'w')
    write_layers(image.layers, file)
    file.close()

# Register the plugin in Gimp
register(
    "save_rects",    
    "Save Kitty Town Rects",   
    "Saves layer info to a format used by Kitty Town",
    "Andrew Anderson", 
    "Andrew Anderson", 
    "October 2013",
    "<Image>/File/Export/Save Kitty Town Rects...", 
    "*", 
    [(PF_FILE, "filepath", "Output Filename", "~/out.rects")], 
    [],
    save_rects)

main()