Very simple GPL loader for Godot Engine (2.1)

GimpPalette.gd

extends Node

export(String, FILE, '*.gpl') var palette

const HEADER = 'GIMP Palette'
const PARAM_NAME = 'Name:'
const PARAM_COLUMNS = 'Columns:'
const PARAMS_COUNT = 2
const COMMENT = '#'
var gpl

func _ready():
	if palette != null:
		generate_palette()

func generate_palette():
	var pal = open_palette(palette)
	gpl = parse_lines(pal.split('\n'))
	return gpl

func open_palette(path):
	var f = File.new()
	f.open(path, File.READ)
	return f.get_as_text()

func parse_lines(lines):
	var params = {
		'colors': [],
		'names': []
	}
	var params_count = 0
	var n = 0
	for line in lines:
		line = line.strip_edges()
		if n == 0:
			if line != HEADER:
				print("Header error.")
		elif params_count < PARAMS_COUNT:
			params_count += 1
		elif is_comment(line):
			pass
		else:
			var color = get_color(line)
			if color != null:
				params['colors'].append(color[0])
				params['names'].append(color[1])
		n+=1
	return params

func get_color(line):
	line = line.replace('\t', ' ')
	var color_info = line.split(' ')
	while '' in color_info:
		color_info.remove(Array(color_info).find(''))
	if color_info.size() >= 4:
		var color = Color(float(color_info[0])/255, float(color_info[1])/255, float(color_info[2])/255)
		for i in range(3):
			color_info.remove(0)
		var name = ''
		for w in color_info:
			name += w+' '
		name = name.strip_edges()
		return [color, name]

func is_comment(line):
	return line.begins_with(COMMENT)