#!/usr/bin/env python
'''
Gameboy camera image converter.

Usage:
    convert.py <input> <output>
'''
import twobpp
import sys
import docopt
from PIL import Image

TILES_PER_LINE = 20
HEIGHT = 144
WIDTH = 160

arguments = docopt(__doc__)

colors = [(0xff, 0xff, 0xff), (0xaa, 0xaa, 0xaa), (0x55,0x55,0x55), (0x00,0x00,0x00)]

f = open(arguments["<input>"], "r")
l = f.readlines()

d = []
for line in l:
    if line.startswith("#"):
        pass
    elif line.startswith("!"):
        pass
    else:
        d.append(line)

b = [bytes.fromhex(h.strip()) for h in d]
image = twobpp.convert_photo(b, colors, TILES_PER_LINE, WIDTH, HEIGHT)
image.save(arguments["<output>"])