35 lines
1.2 KiB
Python
35 lines
1.2 KiB
Python
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from art_export import ArtExporter
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from art import TileIter
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class ANSExporter(ArtExporter):
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format_name = 'ATASCII'
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format_description = """
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ATARI 8-bit computer version of ASCII.
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Assumes ATASCII character set and Atari palette.
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Any tile with non-black background will be considered inverted.
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"""
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file_extension = 'ata'
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def run_export(self, out_filename, options):
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# binary file; encoding into ANSI bytes happens just before write
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self.outfile = open(out_filename, 'wb')
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for frame, layer, x, y in TileIter(self.art):
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# only read from layer 0 of frame 0
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if layer > 0 or frame > 0:
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continue
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ch, fg, bg, _ = self.art.get_tile_at(frame, layer, x, y)
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# swap char indices 0 (heart) and 32 (blank space)
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if ch == 0:
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ch = 32
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elif ch == 32:
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ch = 0
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# non-black (color 1) background = use inverted set
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if bg > 1:
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ch += 128
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self.outfile.write(bytes([ch]))
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# line break
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if x == self.art.width - 1:
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self.outfile.write(bytes([155]))
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self.outfile.close()
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return True
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