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#!/usr/bin/python
#author: Bryan Bishop <kanzure@gmail.com>
#date: 2012-01-02
#purpose: dump asm for each map header
import json
import extract_maps
import random
import string
base = 16
spacing = " "
#this was originally for renaming freeze maps for a unique name
def random_hash():
available_chars = string.hexdigits[:16]
return ''.join(
random.choice(available_chars)
for dummy in xrange(5))
def offset_to_pointer(offset):
if type(offset) == str: offset = int(offset, base)
return int(offset) % 0x4000 + 0x4000
def map_name_cleaner(name, id):
"names have to be acceptable asm labels"
#duck out early
if name == "FREEZE":
name += "_" + random_hash() + "_h"
name += "_" + str(id) + "_h"
return name
#the long haul
name = name.replace(":", "")
name = name.replace("(", "")
name = name.replace(")", "")
name = name.replace("'", "")
name = name.replace("/", "") #N/S -> NS, W/E -> WE
name = name.replace(".", "") #S.S. -> SS, Mt. -> Mt
name = name.replace(" ", "") #or '_' ??
name = name + "_h"
return name
def write_connections(north, south, west, east):
#north 0, south 1, west 2, east 3
if north and south and west and east: return "NORTH | SOUTH | WEST | EAST"
if north and south and west and not east: return "NORTH | SOUTH | WEST"
if north and south and not west and east: return "NORTH | SOUTH | EAST"
if north and not south and west and east: return "NORTH | WEST | EAST"
if not north and south and west and east: return "SOUTH | WEST | EAST"
if north and south and not west and not east: return "NORTH | SOUTH"
if not north and not south and west and east: return "WEST | EAST"
if not north and south and west and not east: return "SOUTH | WEST"
if not north and south and not west and east: return "SOUTH | EAST"
if north and not south and west and not east: return "NORTH | WEST"
if north and not south and not west and east: return "NORTH | EAST"
raise Exception, "unpredicted outcome on write_connections"
#TODO: make this elegant
def connection_line(byte):
if type(byte) == str:
byte = int(byte, base)
connections = 0
north, south, west, east = False, False, False, False
temp = bin(byte)[2:]
if len(temp) == 1:
if temp[0] == "1": #EAST
east = True
elif len(temp) == 2:
if temp[0] == "1": #WEST
west = True
if temp[1] == "1": #EAST
east = True
elif len(temp) == 3:
if temp[0] == "1": #SOUTH
south = True
if temp[1] == "1": #WEST
west = True
if temp[2] == "1": #EAST
east = True
elif len(temp) == 4:
if temp[0] == "1": #NORTH
north = True
if temp[1] == "1": #SOUTH
south = True
if temp[2] == "1": #WEST
west = True
if temp[3] == "1": #EAST
east = True
if north: connections += 1
if south: connections += 1
if west: connections += 1
if east: connections += 1
#i don't have time to optimize this
if connections == 0:
return "$00"
if connections == 1:
if north: return "NORTH"
if south: return "SOUTH"
if west: return "WEST"
if east: return "EAST"
if connections >= 2:
return write_connections(north, south, west, east)
def connection_pretty_printer(connections):
#map_id, connected_map_tile_pointer, current_map_tile_pointer, bigness, width, y, x, window_pointer
output = ""
for connection in connections.keys():
connection = connections[connection]
map_id = hex(connection["map_id"])[2:].zfill(2)
connected_map_tile_pointer = connection["connected_map_tile_pointer"][2:]
current_map_tile_pointer = connection["current_map_tile_pointer"][2:]
bigness = hex(int(connection["bigness"], base))[2:].zfill(2)
width = hex(int(connection["width"], base))[2:].zfill(2)
y = hex(connection["y"])[2:].zfill(2)
x = hex(connection["x"])[2:].zfill(2)
window_pointer = connection["window_pointer"][2:]
output += spacing + "db $" + map_id + " ; some map\n"
output += spacing + "dw $" + connected_map_tile_pointer + ", $" + current_map_tile_pointer + " ; pointers (connected, current) (strip)\n"
output += spacing + "db $" + bigness + ", $" + width + " ; bigness, width\n"
output += spacing + "db $" + y + ", $" + x + " ; alignments (y, x)\n"
output += spacing + "dw $" + window_pointer + " ; window\n\n"
return output
def map_header_pretty_printer(map_header):
address = map_header["address"]
bank = map_header["bank"]
id = map_header["id"]
name = map_header["name"]
asm_name = map_name_cleaner(name, id)
if name == "FREEZE": return "" #skip freeze maps
tileset = int(map_header["tileset"], base)
y = int(map_header["y"], base)
x = int(map_header["x"], base)
map_pointer = map_header["map_pointer"]
texts_pointer = map_header["texts_pointer"]
script_pointer = map_header["script_pointer"]
connection_byte = map_header["connection_byte"]
connections = map_header["connections"]
object_data_pointer = map_header["object_data_pointer"]
byte_size = 12 + (11 * len(connections.keys()))
map_pointer = hex(offset_to_pointer(map_pointer))[2:]
texts_pointer = hex(offset_to_pointer(texts_pointer))[2:]
script_pointer = hex(offset_to_pointer(script_pointer))[2:]
object_data_pointer = hex(offset_to_pointer(object_data_pointer))[2:]
#formatting: hex(y)[2:].zill(2) or "%02x" % (y,)
output = asm_name + ": ; " + address + " to " + hex(int(address, base) + byte_size) + " (" + str(byte_size) + " bytes) (bank=" + str(int(bank, base)) + ") (id=" + str(id) + ")\n"
output += spacing + "db $" + str(tileset).zfill(2) + " ; tileset\n"
output += spacing + "db $" + hex(y)[2:].zfill(2) + ", $" + hex(x)[2:].zfill(2) + " ; dimensions (y, x)\n"
output += spacing + "dw $" + map_pointer + ", $" + texts_pointer + ", $" + script_pointer + " ; blocks, texts, scripts\n"
output += spacing + "db " + connection_line(connection_byte) + " ; connections\n\n"
output += spacing + "; connections data\n\n"
output += connection_pretty_printer(connections)
output += spacing + "; end connection data\n\n"
output += spacing + "dw $" + object_data_pointer + " ; objects\n"
return output
def print_all_headers():
maps = []
for map in extract_maps.map_headers:
maps.append(extract_maps.map_headers[map])
maps = sorted(maps, key=lambda map: int(map["address"], base))
for map in maps:
output = map_header_pretty_printer(map)
if output != "": print output
if __name__ == "__main__":
#read binary data from file
extract_maps.load_rom()
#where are the map structs?
extract_maps.load_map_pointers()
#load map headers into memory
extract_maps.read_all_map_headers()
#print them out
print_all_headers()
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