41 lines
1.3 KiB
Python
Executable file
41 lines
1.3 KiB
Python
Executable file
#!/usr/bin/env python3
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import json
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import struct
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import os
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import sys
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def pack_coord(coord):
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data = struct.pack('<l', round(coord * 10000))
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return data[:-1]
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if len(sys.argv) < 2:
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path = '.'
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else:
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path = sys.argv[1]
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with open(os.path.join(path, 'regions.json'), 'r') as f:
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regions = [(r, int(rid)) for rid, r in json.load(f).items() if r.get('iso')]
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reg_idx = {regions[i][1]: i for i in range(len(regions))}
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with open(os.path.join(path, 'countries.json'), 'r') as f:
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countries = [(r, int(rid)) for rid, r in json.load(f).items() if r.get('iso')]
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c_idx = {countries[i][1]: i for i in range(len(countries))}
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with open(os.path.join(path, 'places.json'), 'r') as f:
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places = json.load(f)
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out = open('places.bin', 'wb')
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out.write(struct.pack('B', len(countries)))
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for c, _ in countries:
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out.write(struct.pack('2s', c['iso'].encode('ascii')))
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out.write(struct.pack('<h', len(regions)))
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for r, _ in regions:
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rname = r['iso'].encode('ascii')
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out.write(struct.pack('B', len(rname)))
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out.write(rname)
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for pl in places.values():
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if pl['country'] not in c_idx:
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continue
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out.write(pack_coord(pl['lon']))
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out.write(pack_coord(pl['lat']))
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out.write(struct.pack('B', c_idx[pl['country']]))
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out.write(struct.pack('<h', reg_idx.get(pl.get('region'), -1)))
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