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A simple Python program that can read DOOM.Hexen IWAD and PWAD files and render them as SVG see examples at http://jason.sperske.com/wad/
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MIT License | |
Copyright (c) 2018 Jason Sperske | |
Permission is hereby granted, free of charge, to any person obtaining a copy | |
of this software and associated documentation files (the "Software"), to deal | |
in the Software without restriction, including without limitation the rights | |
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
copies of the Software, and to permit persons to whom the Software is | |
furnished to do so, subject to the following conditions: | |
The above copyright notice and this permission notice shall be included in all | |
copies or substantial portions of the Software. | |
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
SOFTWARE. |
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#!/usr/bin/env python3 | |
import struct | |
import re | |
class Wad(object): | |
"""Encapsulates the data found inside a WAD file""" | |
def __init__(self, wadFile): | |
"""Each WAD files contains definitions for global attributes as well as map level attributes""" | |
self.levels = [] | |
self.wad_format = 'DOOM' #Assume DOOM format unless 'BEHAVIOR' | |
with open(wadFile, "rb") as f: | |
header_size = 12 | |
self.wad_type = f.read(4)[0] | |
self.num_lumps = struct.unpack("<I", f.read(4))[0] | |
data = f.read(struct.unpack("<I", f.read(4))[0] - header_size) | |
current_level = Level(None) #The first few records of a WAD are not associated with a level | |
lump = f.read(16) #Each offset is is part of a packet 16 bytes | |
while len(lump) == 16: | |
filepos = struct.unpack("<I", lump[0:4])[0] - header_size | |
size = struct.unpack("<I", lump[4:8])[0] | |
name = lump[8:16].decode('UTF-8').rstrip('\0') | |
print(name) | |
if(re.match('E\dM\d|MAP\d\d', name)): | |
#Level nodes are named things like E1M1 or MAP01 | |
if(current_level.is_valid()): | |
self.levels.append(current_level) | |
current_level = Level(name) | |
elif name == 'BEHAVIOR': | |
#This node only appears in Hexen formated WADs | |
self.wad_format = 'HEXEN' | |
else: | |
current_level.lumps[name] = data[filepos:filepos+size] | |
lump = f.read(16) | |
if(current_level.is_valid()): | |
self.levels.append(current_level) | |
for level in self.levels: | |
level.load(self.wad_format) | |
class Level(object): | |
"""Represents a level inside a WAD which is a collection of lumps""" | |
def __init__(self, name): | |
self.name = name | |
self.lumps = dict() | |
self.vertices = [] | |
self.lower_left = None | |
self.upper_right = None | |
self.shift = None | |
self.lines = [] | |
def is_valid(self): | |
return self.name is not None and 'VERTEXES' in self.lumps and 'LINEDEFS' in self.lumps | |
def normalize(self, point, padding=5): | |
return (self.shift[0]+point[0]+padding,self.shift[1]+point[1]+padding) | |
def load(self, wad_format): | |
for vertex in packets_of_size(4, self.lumps['VERTEXES']): | |
x,y = struct.unpack('<hh', vertex[0:4]) | |
self.vertices.append((x,y)) | |
self.lower_left = (min((v[0] for v in self.vertices)), min((v[1] for v in self.vertices))) | |
self.upper_right = (max((v[0] for v in self.vertices)), max((v[1] for v in self.vertices))) | |
self.shift = (0-self.lower_left[0],0-self.lower_left[1]) | |
packet_size = 16 if wad_format is 'HEXEN' else 14 | |
for data in packets_of_size(packet_size, self.lumps['LINEDEFS']): | |
self.lines.append(Line(data)) | |
def save_svg(self): | |
""" Scale the drawing to fit inside a 1024x1024 canvas (iPhones don't like really large SVGs even if they have the same detail) """ | |
import svgwrite | |
view_box_size = self.normalize(self.upper_right, 10) | |
if view_box_size[0] > view_box_size[1]: | |
canvas_size = (1024, int(1024*(float(view_box_size[1])/view_box_size[0]))) | |
else: | |
canvas_size = (int(1024*(float(view_box_size[0])/view_box_size[1])), 1024) | |
dwg = svgwrite.Drawing(self.name+'.svg', profile='tiny', size=canvas_size , viewBox=('0 0 %d %d' % view_box_size)) | |
for line in self.lines: | |
a = self.normalize(self.vertices[line.a]) | |
b = self.normalize(self.vertices[line.b]) | |
if line.is_one_sided(): | |
dwg.add(dwg.line(a, b, stroke='#333', stroke_width=10)) | |
else: | |
dwg.add(dwg.line(a, b, stroke='#999', stroke_width=3)) | |
dwg.save() | |
class Line(object): | |
"""Represents a Linedef inside a WAD""" | |
def __init__(self,data): | |
self.a, self.b = struct.unpack('<hh', data[0:4]) | |
self.left_side, self.right_side = struct.unpack('<hh', data[-4:]) | |
def is_one_sided(self): | |
return self.left_side == -1 or self.right_side == -1 | |
def packets_of_size(n, data): | |
size = len(data) | |
index = 0 | |
while index < size: | |
yield data[index : index+n] | |
index = index + n | |
return | |
if __name__ == "__main__": | |
import sys | |
if len(sys.argv) > 1: | |
wad = Wad(sys.argv[1]) | |
for level in wad.levels: | |
level.save_svg() | |
else: | |
print('You need to pass a WAD file as the only argument') |
Never setup an SSL certificate, it's just running via Amazon S3 without a
Cloud Front endpoint to provide a certificate. http://jason.sperske.com/wad/
should work :)
…On Thu, Jan 6, 2022 at 10:44 AM trumad ***@***.***> wrote:
***@***.**** commented on this gist.
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Is the website for this down? https://jason.sperske.com/wad/
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ohh of course! Why didn't I think to try that. Thank you!
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Is the website for this down? https://jason.sperske.com/wad/