#!/bin/python3
# read packed tilemap file from stdin and output png on stdout

import sys
import io
import struct
from PIL import Image

color_map = (
	(0x00, 0x00, 0x00),
	(0x24, 0x24, 0x24),
	(0x49, 0x49, 0x49),
	(0x6d, 0x6d, 0x6d),
	(0x92, 0x92, 0x92),
	(0xb6, 0xb6, 0xb6),
	(0xda, 0xda, 0xda),
	(0xff, 0xff, 0xff),
)

buf = []
for byte in sys.stdin.buffer.read():
	buf.append(byte)

size_horizontal = 16 * 16
size_vertical = ((len(buf) // 104) // 16 + 1) * 16
img = Image.new('RGB', (size_horizontal, size_vertical))

i = 0
sprite_idx = 0
for x in range(0, len(buf), 2):
	word = 0x0000
	word |= buf[x]
	word |= buf[x+1] << 8

	for p in range(5):
		img.putpixel(((i % 16) + (16 * (sprite_idx % 16)), (i // 16) + (16 * (sprite_idx // 16))), color_map[(word >> (p * 3)) & 0b111])
		i += 1
		if i > 0xff:
			i = 0
			sprite_idx += 1
			break

with io.BytesIO() as out:
	img.save(out, format="PNG")
	sys.stdout.buffer.write(out.getvalue())
	sys.stdout.buffer.flush()