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pokecrystal/extras/gfx.py

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# -*- coding: utf-8 -*-
import os
import sys
import errno
import string
from copy import copy, deepcopy
import random
import argparse
from math import sqrt, floor, ceil
from datetime import datetime
from crystal import load_rom
rom = load_rom()
def mkdir_p(path):
try:
os.makedirs(path)
except OSError as exc: # Python >2.5
if exc.errno == errno.EEXIST:
pass
else: raise
def hex_dump(input, debug = True):
"""display hex dump in rows of 16 bytes"""
dump = ''
output = ''
stream = ''
address = 0x00
margin = 2 + len(hex(len(input))[2:])
# dump
for byte in input:
cool = hex(byte)[2:].zfill(2)
dump += cool + ' '
if debug: stream += cool
# convenient for testing quick edits in bgb
if debug: output += stream + '\n'
# get dump info
bytes_per_line = 16
chars_per_byte = 3 # '__ '
chars_per_line = bytes_per_line * chars_per_byte
num_lines = int(ceil(float(len(dump)) / float(chars_per_line)))
# top
# margin
for char in range(margin):
output += ' '
#
for byte in range(bytes_per_line):
output += hex(byte)[2:].zfill(2) + ' '
output = output[:-1] # last space
# print hex
for line in range(num_lines):
# address
output += '\n' + hex(address)[2:].zfill(margin - 2) + ': '
# contents
start = line * chars_per_line
end = chars_per_line + start - 1 # ignore last space
output += dump[start:end]
address += 0x10
return output
def get_tiles(image):
"""split a 2bpp image into 8x8 tiles"""
tiles = []
tile = []
bytes_per_tile = 16
cur_byte = 0
for byte in image:
# build tile
tile.append(byte)
cur_byte += 1
# done building?
if cur_byte >= bytes_per_tile:
# push completed tile
tiles.append(tile)
tile = []
cur_byte = 0
return tiles
def connect(tiles):
"""combine 8x8 tiles into a 2bpp image"""
out = []
for tile in tiles:
for byte in tile:
out.append(byte)
return out
def transpose(tiles):
"""transpose a tile arrangement along line y=x"""
# horizontal <-> vertical
# 00 01 02 03 04 05 00 06 0c 12 18 1e
# 06 07 08 09 0a 0b 01 07 0d 13 19 1f
# 0c 0d 0e 0f 10 11 <-> 02 08 0e 14 1a 20
# 12 13 14 15 16 17 <-> 03 09 0f 15 1b 21
# 18 19 1a 1b 1c 1d 04 0a 10 16 1c 22
# 1e 1f 20 21 22 23 05 0b 11 17 1d 23
# etc
flipped = []
t = 0 # which tile we're on
w = int(sqrt(len(tiles))) # assume square image
for tile in tiles:
flipped.append(tiles[t])
t += w
# end of row?
if t >= w*w:
# wrap around
t -= w*w
# next row
t += 1
return flipped
def to_file(filename, data):
file = open(filename, 'wb')
for byte in data:
file.write('%c' % byte)
file.close()
# basic rundown of crystal's compression scheme:
# a control command consists of
# the command (bits 5-7)
# and the count (bits 0-4)
# followed by additional params
lz_lit = 0
# print literal for [count] bytes
lz_iter = 1
# print one byte [count] times
lz_alt = 2
# print alternating bytes (2 params) for [count] bytes
lz_zeros = 3
# print 00 for [count] bytes
# repeater control commands have a signed parameter used to determine the start point
# wraparound is simulated
# positive values are added to the start address of the decompressed data
# and negative values are subtracted from the current position
lz_repeat = 4
# print [count] bytes from decompressed data
lz_flip = 5
# print [count] bytes from decompressed data in bit order 01234567
lz_reverse = 6
# print [count] bytes from decompressed data backwards
lz_hi = 7
# -used when the count exceeds 5 bits. uses a 10-bit count instead
# -bits 2-4 now contain the control code, bits 0-1 are bits 8-9 of the count
# -the following byte contains bits 0-7 of the count
lz_end = 0xff
# if 0xff is encountered the decompression ends
# since frontpics have animation tiles lumped onto them,
# sizes must be grabbed from base stats to know when to stop reading them
max_length = 1 << 10 # can't go higher than 10 bits
lowmax = 1 << 5 # standard 5-bit param
class Compressed:
"""compress 2bpp data"""
def __init__(self, image = None, mode = 'horiz', size = None):
assert image, 'need something to compress!'
self.image = image
self.pic = []
self.animtiles = []
# only transpose pic (animtiles were never transposed in decompression)
if size != None:
for byte in range((size*size)*16):
self.pic += image[byte]
for byte in range(((size*size)*16),len(image)):
self.animtiles += image[byte]
else:
self.pic = image
if mode == 'vert':
self.tiles = get_tiles(self.pic)
self.tiles = transpose(self.tiles)
self.pic = connect(self.tiles)
self.image = self.pic + self.animtiles
self.end = len(self.image)
self.byte = None
self.address = 0
self.stream = []
self.zeros = []
self.alts = []
self.iters = []
self.repeats = []
self.flips = []
self.reverses = []
self.literals = []
self.output = []
self.compress()
def compress(self):
"""incomplete, but outputs working compressed data"""
self.address = 0
# todo
#self.scanRepeats()
while ( self.address < self.end ):
#if (self.repeats):
# self.doRepeats()
#if (self.flips):
# self.doFlips()
#if (self.reverses):
# self.doReverses
if (self.checkWhitespace()):
self.doLiterals()
self.doWhitespace()
elif (self.checkIter()):
self.doLiterals()
self.doIter()
elif (self.checkAlts()):
self.doLiterals()
self.doAlts()
else: # doesn't fit any pattern -> literal
self.addLiteral()
self.next()
self.doStream()
# add any literals we've been sitting on
self.doLiterals()
# done
self.output.append(lz_end)
def getCurByte(self):
if self.address < self.end:
self.byte = ord(self.image[self.address])
else: self.byte = None
def next(self):
self.address += 1
self.getCurByte()
def addLiteral(self):
self.getCurByte()
self.literals.append(self.byte)
if len(self.literals) > max_length:
raise Exception, "literals exceeded max length and the compressor didn't catch it"
elif len(self.literals) == max_length:
self.doLiterals()
def doLiterals(self):
if len(self.literals) > lowmax:
self.output.append( (lz_hi << 5) | (lz_lit << 2) | ((len(self.literals) - 1) >> 8) )
self.output.append( (len(self.literals) - 1) & 0xff )
elif len(self.literals) > 0:
self.output.append( (lz_lit << 5) | (len(self.literals) - 1) )
for byte in self.literals:
self.output.append(byte)
self.literals = []
def doStream(self):
for byte in self.stream:
self.output.append(byte)
self.stream = []
def scanRepeats(self):
"""works, but doesn't do flipped/reversed streams yet
this takes up most of the compress time and only saves a few bytes
it might be more feasible to exclude it entirely"""
self.repeats = []
self.flips = []
self.reverses = []
# make a 5-letter word list of the sequence
letters = 5 # how many bytes it costs to use a repeat over a literal
# any shorter and it's not worth the trouble
num_words = len(self.image) - letters
words = []
for i in range(self.address,num_words):
word = []
for j in range(letters):
word.append( ord(self.image[i+j]) )
words.append((word, i))
zeros = []
for zero in range(letters):
zeros.append( 0 )
# check for matches
def get_matches():
# TODO:
# append to 3 different match lists instead of yielding to one
#
#flipped = []
#for byte in enumerate(this[0]):
# flipped.append( sum(1<<(7-i) for i in range(8) if (this[0][byte])>>i&1) )
#reversed = this[0][::-1]
#
for whereabout, this in enumerate(words):
for that in range(whereabout+1,len(words)):
if words[that][0] == this[0]:
if words[that][1] - this[1] >= letters:
# remove zeros
if this[0] != zeros:
yield [this[0], this[1], words[that][1]]
matches = list(get_matches())
# remove more zeros
buffer = []
for match in matches:
# count consecutive zeros in a word
num_zeros = 0
highest = 0
for j in range(letters):
if match[0][j] == 0:
num_zeros += 1
else:
if highest < num_zeros: highest = num_zeros
num_zeros = 0
if highest < 4:
# any more than 3 zeros in a row isn't worth it
# (and likely to already be accounted for)
buffer.append(match)
matches = buffer
# combine overlapping matches
buffer = []
for this, match in enumerate(matches):
if this < len(matches) - 1: # special case for the last match
if matches[this+1][1] <= (match[1] + len(match[0])): # check overlap
if match[1] + len(match[0]) < match[2]:
# next match now contains this match's bytes too
# this only appends the last byte (assumes overlaps are +1
match[0].append(matches[this+1][0][-1])
matches[this+1] = match
elif match[1] + len(match[0]) == match[2]:
# we've run into the thing we matched
buffer.append(match)
# else we've gone past it and we can ignore it
else: # no more overlaps
buffer.append(match)
else: # last match, so there's nothing to check
buffer.append(match)
matches = buffer
# remove alternating sequences
buffer = []
for match in matches:
for i in range(6 if letters > 6 else letters):
if match[0][i] != match[0][i&1]:
buffer.append(match)
break
matches = buffer
self.repeats = matches
def doRepeats(self):
"""doesn't output the right values yet"""
unusedrepeats = []
for repeat in self.repeats:
if self.address >= repeat[2]:
# how far in we are
length = (len(repeat[0]) - (self.address - repeat[2]))
# decide which side we're copying from
if (self.address - repeat[1]) <= 0x80:
self.doLiterals()
self.stream.append( (lz_repeat << 5) | length - 1 )
# wrong?
self.stream.append( (((self.address - repeat[1])^0xff)+1)&0xff )
else:
self.doLiterals()
self.stream.append( (lz_repeat << 5) | length - 1 )
# wrong?
self.stream.append(repeat[1]>>8)
self.stream.append(repeat[1]&0xff)
#print hex(self.address) + ': ' + hex(len(self.output)) + ' ' + hex(length)
self.address += length
else: unusedrepeats.append(repeat)
self.repeats = unusedrepeats
def checkWhitespace(self):
self.zeros = []
self.getCurByte()
original_address = self.address
if ( self.byte == 0 ):
while ( self.byte == 0 ) & ( len(self.zeros) <= max_length ):
self.zeros.append(self.byte)
self.next()
if len(self.zeros) > 1:
return True
self.address = original_address
return False
def doWhitespace(self):
if (len(self.zeros) + 1) >= lowmax:
self.stream.append( (lz_hi << 5) | (lz_zeros << 2) | ((len(self.zeros) - 1) >> 8) )
self.stream.append( (len(self.zeros) - 1) & 0xff )
elif len(self.zeros) > 1:
self.stream.append( lz_zeros << 5 | (len(self.zeros) - 1) )
else:
raise Exception, "checkWhitespace() should prevent this from happening"
def checkAlts(self):
self.alts = []
self.getCurByte()
original_address = self.address
num_alts = 0
# make sure we don't check for alts at the end of the file
if self.address+2 >= self.end: return False
self.alts.append(self.byte)
self.alts.append(ord(self.image[self.address+1]))
# are we onto smething?
if ( ord(self.image[self.address+2]) == self.alts[0] ):
cur_alt = 0
while (ord(self.image[(self.address)+1]) == self.alts[num_alts&1]) & (num_alts <= max_length):
num_alts += 1
self.next()
# include the last alternated byte
num_alts += 1
self.address = original_address
if num_alts > lowmax:
return True
elif num_alts > 2:
return True
return False
def doAlts(self):
original_address = self.address
self.getCurByte()
#self.alts = []
#num_alts = 0
#self.alts.append(self.byte)
#self.alts.append(ord(self.image[self.address+1]))
#i = 0
#while (ord(self.image[self.address+1]) == self.alts[i^1]) & (num_alts <= max_length):
# num_alts += 1
# i ^=1
# self.next()
## include the last alternated byte
#num_alts += 1
num_alts = len(self.iters) + 1
if num_alts > lowmax:
self.stream.append( (lz_hi << 5) | (lz_alt << 2) | ((num_alts - 1) >> 8) )
self.stream.append( num_alts & 0xff )
self.stream.append( self.alts[0] )
self.stream.append( self.alts[1] )
elif num_alts > 2:
self.stream.append( (lz_alt << 5) | (num_alts - 1) )
self.stream.append( self.alts[0] )
self.stream.append( self.alts[1] )
else:
raise Exception, "checkAlts() should prevent this from happening"
self.address = original_address
self.address += num_alts
def checkIter(self):
self.iters = []
self.getCurByte()
iter = self.byte
original_address = self.address
while (self.byte == iter) & (len(self.iters) < max_length):
self.iters.append(self.byte)
self.next()
self.address = original_address
if len(self.iters) > 3:
# 3 or fewer isn't worth the trouble and actually longer
# if part of a larger literal set
return True
return False
def doIter(self):
self.getCurByte()
iter = self.byte
original_address = self.address
self.iters = []
while (self.byte == iter) & (len(self.iters) < max_length):
self.iters.append(self.byte)
self.next()
if (len(self.iters) - 1) >= lowmax:
self.stream.append( (lz_hi << 5) | (lz_iter << 2) | ((len(self.iters)-1) >> 8) )
self.stream.append( (len(self.iters) - 1) & 0xff )
self.stream.append( iter )
elif len(self.iters) > 3:
# 3 or fewer isn't worth the trouble and actually longer
# if part of a larger literal set
self.stream.append( (lz_iter << 5) | (len(self.iters) - 1) )
self.stream.append( iter )
else:
self.address = original_address
raise Exception, "checkIter() should prevent this from happening"
class Decompressed:
"""parse compressed 2bpp data
parameters:
[compressed 2bpp data]
[tile arrangement] default: 'vert'
[size of pic] default: None
[start] (optional)
splits output into pic [size] and animation tiles if applicable
data can be fed in from rom if [start] is specified"""
def __init__(self, lz = None, mode = None, size = None, start = 0):
# todo: play nice with Compressed
assert lz, 'need something to compress!'
self.lz = lz
self.byte = None
self.address = 0
self.start = start
self.output = []
self.decompress()
debug = False
# print tuple containing start and end address
if debug: print '(' + hex(self.start) + ', ' + hex(self.start + self.address+1) + '),'
# only transpose pic
self.pic = []
self.animtiles = []
if size != None:
self.tiles = get_tiles(self.output)
self.pic = connect(self.tiles[:(size*size)])
self.animtiles = connect(self.tiles[(size*size):])
else: self.pic = self.output
if mode == 'vert':
self.tiles = get_tiles(self.pic)
self.tiles = transpose(self.tiles)
self.pic = connect(self.tiles)
def decompress(self):
"""replica of crystal's decompression"""
self.output = []
while True:
self.getCurByte()
if (self.byte == lz_end):
break
self.cmd = (self.byte & 0b11100000) >> 5
if self.cmd == lz_hi: # 10-bit param
self.cmd = (self.byte & 0b00011100) >> 2
self.length = (self.byte & 0b00000011) << 8
self.next()
self.length += self.byte + 1
else: # 5-bit param
self.length = (self.byte & 0b00011111) + 1
# literals
if self.cmd == lz_lit:
self.doLiteral()
elif self.cmd == lz_iter:
self.doIter()
elif self.cmd == lz_alt:
self.doAlt()
elif self.cmd == lz_zeros:
self.doZeros()
else: # repeaters
self.next()
if self.byte > 0x7f: # negative
self.displacement = self.byte & 0x7f
self.displacement = len(self.output) - self.displacement - 1
else: # positive
self.displacement = self.byte * 0x100
self.next()
self.displacement += self.byte
if self.cmd == lz_flip:
self.doFlip()
elif self.cmd == lz_reverse:
self.doReverse()
else: # lz_repeat
self.doRepeat()
self.address += 1
#self.next() # somewhat of a hack
def getCurByte(self):
self.byte = ord(self.lz[self.start+self.address])
def next(self):
self.address += 1
self.getCurByte()
def doLiteral(self):
# copy 2bpp data directly
for byte in range(self.length):
self.next()
self.output.append(self.byte)
def doIter(self):
# write one byte repeatedly
self.next()
for byte in range(self.length):
self.output.append(self.byte)
def doAlt(self):
# write alternating bytes
self.alts = []
self.next()
self.alts.append(self.byte)
self.next()
self.alts.append(self.byte)
for byte in range(self.length):
self.output.append(self.alts[byte&1])
def doZeros(self):
# write zeros
for byte in range(self.length):
self.output.append(0x00)
def doFlip(self):
# repeat flipped bytes from 2bpp output
# eg 11100100 -> 00100111
# quat 3 2 1 0 -> 0 2 1 3
for byte in range(self.length):
flipped = sum(1<<(7-i) for i in range(8) if self.output[self.displacement+byte]>>i&1)
self.output.append(flipped)
def doReverse(self):
# repeat reversed bytes from 2bpp output
for byte in range(self.length):
self.output.append(self.output[self.displacement-byte])
def doRepeat(self):
# repeat bytes from 2bpp output
for byte in range(self.length):
self.output.append(self.output[self.displacement+byte])
sizes = {
0: 5,
1: 6,
2: 7,
3: 5,
4: 6,
5: 7,
6: 5,
7: 6,
8: 7,
9: 5,
10: 5,
11: 7,
12: 5,
13: 5,
14: 7,
15: 5,
16: 6,
17: 7,
18: 5,
19: 6,
20: 5,
21: 7,
22: 5,
23: 7,
24: 5,
25: 7,
26: 5,
27: 6,
28: 5,
29: 6,
30: 7,
31: 5,
32: 6,
33: 7,
34: 5,
35: 6,
36: 6,
37: 7,
38: 5,
39: 6,
40: 5,
41: 7,
42: 5,
43: 6,
44: 7,
45: 5,
46: 7,
47: 5,
48: 7,
49: 5,
50: 7,
51: 5,
52: 7,
53: 5,
54: 7,
55: 5,
56: 7,
57: 5,
58: 7,
59: 5,
60: 6,
61: 7,
62: 5,
63: 6,
64: 7,
65: 5,
66: 7,
67: 7,
68: 5,
69: 6,
70: 7,
71: 5,
72: 6,
73: 5,
74: 6,
75: 6,
76: 6,
77: 7,
78: 5,
79: 7,
80: 5,
81: 6,
82: 6,
83: 5,
84: 7,
85: 6,
86: 7,
87: 5,
88: 7,
89: 5,
90: 7,
91: 7,
92: 6,
93: 6,
94: 7,
95: 6,
96: 7,
97: 5,
98: 7,
99: 5,
100: 5,
101: 7,
102: 7,
103: 5,
104: 6,
105: 7,
106: 6,
107: 7,
108: 6,
109: 7,
110: 7,
111: 7,
112: 6,
113: 6,
114: 7,
115: 5,
116: 6,
117: 6,
118: 7,
119: 6,
120: 6,
121: 6,
122: 7,
123: 6,
124: 6,
125: 6,
126: 7,
127: 7,
128: 6,
129: 7,
130: 7,
131: 5,
132: 5,
133: 6,
134: 6,
135: 6,
136: 6,
137: 5,
138: 6,
139: 5,
140: 6,
141: 7,
142: 7,
143: 7,
144: 7,
145: 7,
146: 5,
147: 6,
148: 7,
149: 7,
150: 5,
151: 5,
152: 6,
153: 7,
154: 5,
155: 6,
156: 7,
157: 5,
158: 6,
159: 7,
160: 6,
161: 6,
162: 5,
163: 7,
164: 6,
165: 6,
166: 5,
167: 7,
168: 7,
169: 6,
170: 6,
171: 5,
172: 5,
173: 5,
174: 5,
175: 7,
176: 5,
177: 6,
178: 5,
179: 6,
180: 7,
181: 7,
182: 5,
183: 7,
184: 6,
185: 7,
186: 5,
187: 6,
188: 7,
189: 5,
190: 5,
191: 6,
192: 6,
193: 5,
194: 6,
195: 6,
196: 6,
197: 6,
198: 7,
199: 6,
200: 5,
201: 6,
202: 7,
203: 5,
204: 7,
205: 6,
206: 6,
207: 7,
208: 6,
209: 6,
210: 5,
211: 7,
212: 5,
213: 6,
214: 6,
215: 5,
216: 7,
217: 5,
218: 6,
219: 5,
220: 6,
221: 6,
222: 5,
223: 6,
224: 6,
225: 7,
226: 7,
227: 6,
228: 7,
229: 7,
230: 5,
231: 7,
232: 6,
233: 7,
234: 7,
235: 5,
236: 7,
237: 5,
238: 6,
239: 6,
240: 6,
241: 7,
242: 7,
243: 7,
244: 7,
245: 5,
246: 6,
247: 7,
248: 7,
249: 7,
250: 5,
}
def make_sizes():
"""front pics have specified sizes"""
top = 251
base_stats = 0x51424
# print monster sizes
address = base_stats + 0x11
for id in range(top):
size = (ord(rom[address])) & 0x0f
print str(id) + ': ' + str(size) + ','
address += 0x20
fxs = 0xcfcf6
num_fx = 40
def decompress_fx_by_id(id):
address = fxs + id*4 # len_fxptr
# get size
num_tiles = ord(rom[address]) # # tiles
# get pointer
bank = ord(rom[address+1])
address = (ord(rom[address+3]) << 8) + ord(rom[address+2])
address = (bank * 0x4000) + (address & 0x3fff)
# decompress
fx = Decompressed(rom, 'horiz', num_tiles, address)
return fx
def decompress_fx():
for id in range(num_fx):
fx = decompress_fx_by_id(id)
filename = '../gfx/fx/' + str(id).zfill(3) + '.2bpp' # ../gfx/fx/039.2bpp
to_file(filename, fx.pic)
num_pics = 2
front = 0
back = 1
monsters = 0x120000
num_monsters = 251
unowns = 0x124000
num_unowns = 26
unown_dex = 201
def decompress_monster_by_id(id = 0, type = front):
# no unowns here
if id + 1 == unown_dex: return None
# get size
if type == front:
size = sizes[id]
else: size = None
# get pointer
address = monsters + (id*2 + type)*3 # bank, address
bank = ord(rom[address]) + 0x36 # crystal
address = (ord(rom[address+2]) << 8) + ord(rom[address+1])
address = (bank * 0x4000) + (address & 0x3fff)
# decompress
monster = Decompressed(rom, 'vert', size, address)
return monster
def decompress_monsters(type = front):
for id in range(num_monsters):
# decompress
monster = decompress_monster_by_id(id, type)
if monster != None: # no unowns here
if not type: # front
filename = 'front.2bpp'
folder = '../gfx/pics/' + str(id+1).zfill(3) + '/'
to_file(folder+filename, monster.pic)
filename = 'tiles.2bpp'
folder = '../gfx/pics/' + str(id+1).zfill(3) + '/'
to_file(folder+filename, monster.animtiles)
else: # back
filename = 'back.2bpp'
folder = '../gfx/pics/' + str(id+1).zfill(3) + '/'
to_file(folder+filename, monster.pic)
def decompress_unown_by_id(letter, type = front):
# get size
if type == front:
size = sizes[unown_dex-1]
else: size = None
# get pointer
address = unowns + (letter*2 + type)*3 # bank, address
bank = ord(rom[address]) + 0x36 # crystal
address = (ord(rom[address+2]) << 8) + ord(rom[address+1])
address = (bank * 0x4000) + (address & 0x3fff)
# decompress
unown = Decompressed(rom, 'vert', size, address)
return unown
def decompress_unowns(type = front):
for letter in range(num_unowns):
# decompress
unown = decompress_unown_by_id(letter, type)
if not type: # front
filename = 'front.2bpp'
folder = '../gfx/pics/' + str(unown_dex).zfill(3) + chr(ord('a') + letter) + '/'
to_file(folder+filename, unown.pic)
filename = 'tiles.2bpp'
folder = '../gfx/anim/'
to_file(folder+filename, unown.animtiles)
else: # back
filename = 'back.2bpp'
folder = '../gfx/pics/' + str(unown_dex).zfill(3) + chr(ord('a') + letter) + '/'
to_file(folder+filename, unown.pic)
trainers = 0x128000
num_trainers = 67
def decompress_trainer_by_id(id):
# get pointer
address = trainers + id*3 # bank, address
bank = ord(rom[address]) + 0x36 # crystal
address = (ord(rom[address+2]) << 8) + ord(rom[address+1])
address = (bank * 0x4000) + (address & 0x3fff)
# decompress
trainer = Decompressed(rom, 'vert', None, address)
return trainer
def decompress_trainers():
for id in range(num_trainers):
# decompress
trainer = decompress_trainer_by_id(id)
filename = '../gfx/trainers/' + str(id).zfill(3) + '.2bpp' # ../gfx/trainers/066.2bpp
to_file(filename, trainer.pic)
# in order of use (sans repeats)
intro_gfx = [
('logo', 0x109407),
('001', 0xE641D), # tilemap
('unowns', 0xE5F5D),
('pulse', 0xE634D),
('002', 0xE63DD), # tilemap
('003', 0xE5ECD), # tilemap
('background', 0xE5C7D),
('004', 0xE5E6D), # tilemap
('005', 0xE647D), # tilemap
('006', 0xE642D), # tilemap
('pichu_wooper', 0xE592D),
('suicune_run', 0xE555D),
('007', 0xE655D), # tilemap
('008', 0xE649D), # tilemap
('009', 0xE76AD), # tilemap
('suicune_jump', 0xE6DED),
('unown_back', 0xE785D),
('010', 0xE764D), # tilemap
('011', 0xE6D0D), # tilemap
('suicune_close', 0xE681D),
('012', 0xE6C3D), # tilemap
('013', 0xE778D), # tilemap
('suicune_back', 0xE72AD),
('014', 0xE76BD), # tilemap
('015', 0xE676D), # tilemap
('crystal_unowns', 0xE662D),
('017', 0xE672D), # tilemap
]
def decompress_intro():
for name, address in intro_gfx:
filename = '../gfx/intro/' + name + '.2bpp'
gfx = Decompressed( rom, 'horiz', None, address )
to_file(filename, gfx.output)
title_gfx = [
('suicune', 0x10EF46),
('logo', 0x10F326),
('crystal', 0x10FCEE),
]
def decompress_title():
for name, address in title_gfx:
filename = '../gfx/title/' + name + '.2bpp'
gfx = Decompressed( rom, 'horiz', None, address )
to_file(filename, gfx.output)
def decompress_tilesets():
tileset_headers = 0x4d596
len_tileset = 15
num_tilesets = 0x25
for tileset in range(num_tilesets):
ptr = tileset*len_tileset + tileset_headers
address = (ord(rom[ptr])*0x4000) + (((ord(rom[ptr+1]))+ord(rom[ptr+2])*0x100)&0x3fff)
tiles = Decompressed( rom, 'horiz', None, address )
filename = '../gfx/tilesets/'+str(tileset).zfill(2)+'.2bpp'
to_file( filename, tiles.output )
#print '(' + hex(address) + ', '+ hex(address+tiles.address+1) + '),'
misc = [
('player', 0x2BA1A, 'vert'),
('dude', 0x2BBAA, 'vert'),
('town_map', 0xF8BA0, 'horiz'),
('pokegear', 0x1DE2E4, 'horiz'),
('pokegear_sprites', 0x914DD, 'horiz'),
]
def decompress_misc():
for name, address, mode in misc:
filename = '../gfx/misc/' + name + '.2bpp'
gfx = Decompressed( rom, mode, None, address )
to_file(filename, gfx.output)
def decompress_all(debug = False):
"""decompress all known compressed data in baserom"""
#mkdir_p('../gfx/')
#mkdir_p('../gfx/frontpics/')
#mkdir_p('../gfx/anim/')
#mkdir_p('../gfx/backpics/')
#mkdir_p('../gfx/trainers/')
#mkdir_p('../gfx/fx/')
#mkdir_p('../gfx/intro/')
#mkdir_p('../gfx/title/')
#mkdir_p('../gfx/tilesets/')
#mkdir_p('../gfx/misc/')
if debug: print 'fronts'
decompress_monsters(front)
if debug: print 'backs'
decompress_monsters(back)
if debug: print 'unown fronts'
decompress_unowns(front)
if debug: print 'unown backs'
decompress_unowns(back)
if debug: print 'trainers'
decompress_trainers()
if debug: print 'fx'
decompress_fx()
if debug: print 'intro'
decompress_intro()
if debug: print 'title'
decompress_title()
if debug: print 'tilesets'
decompress_tilesets()
if debug: print 'misc'
decompress_misc()
return
def decompress_from_address(address, mode='horiz', filename = 'de.2bpp', size = None):
"""write decompressed data from an address to a 2bpp file"""
image = Decompressed(rom, mode, size, address)
to_file(filename, image.pic)
def decompress_file(filein, fileout, mode = 'horiz', size = None):
f = open(filein, 'rb')
image = f.read()
f.close()
de = Decompressed(image, mode, size)
to_file(fileout, de.pic)
def compress_file(filein, fileout, mode = 'horiz'):
f = open(filein, 'rb')
image = f.read()
f.close()
lz = Compressed(image, mode)
to_file(fileout, lz.output)
def compress_monster_frontpic(id, fileout):
mode = 'vert'
fpic = '../gfx/pics/' + str(id).zfill(3) + '/front.2bpp'
fanim = '../gfx/pics/' + str(id).zfill(3) + '/tiles.2bpp'
pic = open(fpic, 'rb').read()
anim = open(fanim, 'rb').read()
image = pic + anim
lz = Compressed(image, mode, 5)
out = '../gfx/pics/' + str(id).zfill(3) + '/front.lz'
to_file(out, lz.output)
def get_uncompressed_gfx(start, num_tiles, filename):
"""grab tiles directly from rom and write to file"""
bytes_per_tile = 0x10
length = num_tiles*bytes_per_tile
end = start + length
rom = load_rom()
image = []
for address in range(start,end):
image.append(ord(rom[address]))
to_file(filename, image)
def hex_to_rgb(word):
red = word & 0b11111
word >>= 5
green = word & 0b11111
word >>= 5
blue = word & 0b11111
return (red, green, blue)
def grab_palettes(address, length = 0x80):
output = ''
for word in range(length/2):
color = ord(rom[address+1])*0x100 + ord(rom[address])
address += 2
color = hex_to_rgb(color)
red = str(color[0]).zfill(2)
green = str(color[1]).zfill(2)
blue = str(color[2]).zfill(2)
output += '\tRGB '+red+', '+green+', '+blue
output += '\n'
return output
if __name__ == "__main__":
parser = argparse.ArgumentParser()
parser.add_argument('cmd', nargs='?', metavar='cmd', type=str)
parser.add_argument('arg1', nargs='?', metavar='arg1', type=str)
parser.add_argument('arg2', nargs='?', metavar='arg2', type=str)
parser.add_argument('arg3', nargs='?', metavar='arg3', type=str)
args = parser.parse_args()
debug = True
if args.cmd == 'de':
# python gfx.py de [addr] [fileout] [mode]
addr = int(args.arg1,16)
fileout = args.arg2
mode = args.arg3
decompress_from_address(addr, fileout, mode)
if debug: print 'decompressed to ' + args.arg2 + ' from ' + hex(int(args.arg1,16)) + '!'
elif args.cmd == 'lz':
# python gfx.py lz [filein] [fileout] [mode]
filein = args.arg1
fileout = args.arg2
mode = args.arg3
compress_file(filein, fileout, mode)
if debug: print 'compressed ' + filein + ' to ' + fileout + '!'
elif args.cmd == 'lzf':
# python gfx.py lzf [id] [fileout]
compress_monster_frontpic(int(args.arg1), args.arg2)
elif args.cmd == 'un':
# python gfx.py un [address] [num_tiles] [filename]
get_uncompressed_gfx(int(args.arg1,16), int(args.arg2), args.arg3)
elif args.cmd == 'pal':
# python gfx.py pal [address] [length]
print grab_palettes(int(args.arg1,16), int(args.arg2))
#else:
## python gfx.py
#decompress_all()
#if debug: print 'decompressed known gfx to ../gfx/!'
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