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45 lines
1.3 KiB
Python
45 lines
1.3 KiB
Python
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"""
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This script prints out a <CharacterRegions> xml element that contains efficiently calculated regions for
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all of the font's supported unicode characters. Pass the font file (not the spritefont xml) as an argument.
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This script requires FontTools. Install using: pip install fonttools
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"""
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""" The amount of characters that can be missing in a sequence to still put them in one region """
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leeway = 0
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from fontTools.ttLib import TTFont
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from sys import argv
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def print_region(start, end):
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print(f" <CharacterRegion>")
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print(f" <Start>&#{start};</Start>")
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print(f" <End>&#{end};</End>")
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print(f" </CharacterRegion>")
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# get all supported characters and sort them
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ttf = TTFont(argv[1])
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chars = list(set(y[0] for x in ttf["cmap"].tables for y in x.cmap.items()))
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chars.sort()
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ttf.close()
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# split them into regions based on the leeway
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start = -1
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last = 0
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total = 0
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print("<CharacterRegions>")
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for char in chars:
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if char - last > leeway + 1:
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if start != -1:
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print_region(start, last)
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total += last - start + 1
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start = char
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last = char
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# print the remaining region
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print_region(start, last)
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total += last - start + 1
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print("</CharacterRegions>")
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print(f"The font contains {len(chars)} characters")
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print(f"The spritefont will contain {total} characters")
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