bbbradsmith

import PIL.Image
import os

def decode_file(filename):
    print(filename)
    f = open(filename,"rb").read()
    print("Header: %02X %02X" % (f[0],f[1]))
    pal = f[2:2+(16*3)]
    offset = 2 + (16*3)
    count = 0

bbbradsmith

# generates SVG diagram:
# https://commons.wikimedia.org/wiki/File:Affine_texture_mapping_tri_vs_quad.svg

import math

GRID = 8
FTW = 100 # top board width
FBW = 200 # bottom board width
FH  = 156
COLBG = "#B4B3D2"

bbbradsmith

# A recreation of:
#   https://commons.wikimedia.org/wiki/File:Perspective_correct_texture_mapping.jpg
#
# To give a simple code demonstration of perspective correction,
# and simple barycentric triangle coordinates.
#
# Note that this is a "naive" implementation,
# and the resulting floating point errors will produce some rough edges on the checkerboard texture.
# It would be more efficient and more numerically stable to rasterize the triangle instead,
# but this demonstrates a simple way to generate coordinates without the additional complexity of rasterization.

bbbradsmith

# Sprite / Map dumper for Vigilance on Talos V (19960
# place in "dump" folder within Talos install directory and run

import os
import struct
import PIL.Image

DEFAULT_BG = 13 # magenta

def filename_flatten(f):

bbbradsmith

# Sprite / Map dumper for Sinaria: Lost in Space (1994)
# place in "dump" folder within Sinaria install directory and run

import os
import struct
import PIL.Image

#DEFAULT_BG = 27 # red
DEFAULT_BG = 140 # magenta

bbbradsmith

# Extracts sprites from the Korean DOS game Ice Kiss
# First run icekiss_sprite_file_extract.py to create the sprite bin files
# Also, take a screenshot of the gameplay with DOSBox to make a PNG with the correct palette
# Then run this to extract graphics from them

import PIL.Image

screenshot = PIL.Image.open("screenshot.png") # use for palette

def decode_file(filename):

bbbradsmith

# Terranigma data compressor and decompressor
# Brad Smith, 2022-02-07
# https://rainwarrior.ca
#
# Format reference:
#   https://www.terranigma.be/index.php/Compression

import sys

def usage():

bbbradsmith

#!/usr/bin/env python3

#
# Pasti .STX Atari ST image to .ST image converter.
# Creates an ST file using the sectors found in an STX, and reports missing/error sectors.
#
# Usage:
#   stx_to_st("a.stx")
#   stx_to_st("in.stx","out.st",tracks,sides,sectors)
#

bbbradsmith

# Files:
# Iga Ninden Gaiou (Japan).chd CRC32 1243A2DE
#
# Use chdman to extractcd:
# ing.bin CRC32 07E9BA8D

romin = "ing.bin"
romout = "inge.bin"

rom = open(romin,"rb").read()

bbbradsmith

#!/usr/bin/env python3

#
# Pasti .STX Atari ST disk image merger
# Allows combining of tracks from separate STX files,
# for cases where we can only dump part of a disk at a time.
#
# Usage:
#   stx_main("a.stx")
#   stx_add("b.stx")