mirror of
https://github.com/pret/pokegold-spaceworld.git
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101 lines
3.9 KiB
Python
101 lines
3.9 KiB
Python
# #!/usr/bin/env python3
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# coding: utf-8
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from __future__ import division
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import os
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import sys
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import argparse
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import png
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from mapreader import MapReader
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from colorsys import hls_to_rgb
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if __name__ == '__main__':
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# argument parser
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ap = argparse.ArgumentParser()
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ap.add_argument('-r', dest='romname')
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ap.add_argument('-o', dest='filename', default='coverage.png')
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ap.add_argument('-m', dest='mapfile', required=True)
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ap.add_argument('-b', dest='num_banks', required=True, type=lambda x: int(x, 0))
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args = ap.parse_args()
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bank_mask = 0x3FFF
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bank_size = 0x4000 # bytes
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width = 256 # pixels per row
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bpp = 8 # bytes per pixel
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romname = args.romname
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rom_size = args.num_banks * bank_size # bytes
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height = (args.num_banks * bank_size + (width * bpp - 1)) // (width * bpp) # pixels
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rows_per_bank = bank_size // (width * bpp)
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r = MapReader()
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try:
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with open(args.mapfile, 'r') as f:
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l = f.readlines()
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except UnicodeDecodeError:
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# Python 3 seems to choke on the file's encoding, but the `encoding` keyword only works on Py3
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with open(args.mapfile, 'r', encoding= 'utf-8') as f:
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l = f.readlines()
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r.read_map_data(l)
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default_bank_data = {'sections': [], 'used': 0, 'slack': bank_size}
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filler = [0x00, 0xFF]
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if (romname is not None):
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with open(romname, 'rb') as f:
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for rb in range(0, args.num_banks):
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data = r.bank_data['ROM Bank'].get(rb, default_bank_data)
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bank = f.read(bank_size)
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if (bank[bank_size - 1] in filler):
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fill = bank[bank_size - 1]
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for i in reversed(range(-1, bank_size - 1)):
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if (i < 0 or bank[i] != fill):
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break
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# i is now pointing to first different byte
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beg = i + 1 + (0 if rb == 0 else bank_size)
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end = bank_size + (0 if rb == 0 else bank_size)
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data['sections'].append({'beg': beg, 'end': end, 'name': 'Section_Trailing_Fill', 'symbols': []})
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hit_data = [[0] * width for _ in range(height)]
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for bank in range(args.num_banks):
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data = r.bank_data['ROM Bank'].get(bank, default_bank_data)
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for s in data['sections']:
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beg = (s['beg'] & bank_mask) + bank * bank_size
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end = ((s['end'] -1) & bank_mask) + bank * bank_size # end is exclusive
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# skip zero-sized entries
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if (s['beg'] == s['end']):
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continue
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y_beg = beg // (width * bpp)
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x_beg = (beg % (width * bpp)) // bpp
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y_end = end // (width * bpp)
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x_end = (end % (width * bpp)) // bpp
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#print('beg {0} end {1}: {2}/{3} -- {4}/{5}'.format(beg, end, y_beg, x_beg, y_end, x_end))
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# special case y_beg/x_beg and y_end/x_end
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if (y_beg == y_end and x_beg == x_end):
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hit_data[y_beg][x_beg] += end - beg + 1
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else:
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hit_data[y_beg][x_beg] += bpp - ((beg % (width * bpp)) - x_beg * bpp)
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hit_data[y_end][x_end] += ((end % (width * bpp)) - x_end * bpp + 1)
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# regular case
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for y in range(y_beg, y_end + 1):
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x_line_beg = 0 if y_beg != y else x_beg + 1
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x_line_end = width - 1 if y_end != y else x_end - 1
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for x in range(x_line_beg, x_line_end + 1):
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hit_data[y][x] += bpp
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png_data = []
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for i, row in enumerate(hit_data):
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bank = i // rows_per_bank
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hue = 0 if bank % 2 else 120
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row_png_data = ()
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for col in row:
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hls = (hue/360.0, 1.0 - (col/bpp * (100 - 15))/100.0, 1.0)
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rgb = tuple(255 * x for x in hls_to_rgb(*hls))
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row_png_data += rgb
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png_data.append(row_png_data)
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with open(args.filename, 'wb') as f:
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w = png.Writer(width, height)
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w.write(f, png_data)
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