mirror of
https://github.com/curioustorvald/Terrarum-sans-bitmap.git
synced 2026-03-07 20:01:52 +09:00
536 lines
18 KiB
Python
536 lines
18 KiB
Python
"""
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Sheet definitions, code ranges, index functions, and font metric constants.
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Ported from TerrarumSansBitmap.kt companion object and SheetConfig.kt.
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"""
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# Font metrics
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H = 20
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H_UNIHAN = 16
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W_HANGUL_BASE = 13
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W_UNIHAN = 16
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W_LATIN_WIDE = 9
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W_VAR_INIT = 15
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W_WIDEVAR_INIT = 31
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HGAP_VAR = 1
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SIZE_CUSTOM_SYM = 20
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H_DIACRITICS = 3
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H_STACKUP_LOWERCASE_SHIFTDOWN = 4
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H_OVERLAY_LOWERCASE_SHIFTDOWN = 2
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LINE_HEIGHT = 24
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# OTF metrics (1000 UPM, scale = 50 units/pixel)
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UNITS_PER_EM = 1000
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SCALE = 50 # units per pixel
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ASCENT = 16 * SCALE # 800
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DESCENT = 4 * SCALE # 200
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X_HEIGHT = 8 * SCALE # 400
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CAP_HEIGHT = 12 * SCALE # 600
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LINE_GAP = (LINE_HEIGHT - H) * SCALE # 200
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# Sheet indices
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SHEET_ASCII_VARW = 0
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SHEET_HANGUL = 1
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SHEET_EXTA_VARW = 2
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SHEET_EXTB_VARW = 3
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SHEET_KANA = 4
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SHEET_CJK_PUNCT = 5
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SHEET_UNIHAN = 6
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SHEET_CYRILIC_VARW = 7
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SHEET_HALFWIDTH_FULLWIDTH_VARW = 8
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SHEET_UNI_PUNCT_VARW = 9
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SHEET_GREEK_VARW = 10
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SHEET_THAI_VARW = 11
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SHEET_HAYEREN_VARW = 12
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SHEET_KARTULI_VARW = 13
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SHEET_IPA_VARW = 14
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SHEET_RUNIC = 15
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SHEET_LATIN_EXT_ADD_VARW = 16
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SHEET_CUSTOM_SYM = 17
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SHEET_BULGARIAN_VARW = 18
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SHEET_SERBIAN_VARW = 19
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SHEET_TSALAGI_VARW = 20
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SHEET_PHONETIC_EXT_VARW = 21
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SHEET_DEVANAGARI_VARW = 22
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SHEET_KARTULI_CAPS_VARW = 23
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SHEET_DIACRITICAL_MARKS_VARW = 24
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SHEET_GREEK_POLY_VARW = 25
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SHEET_EXTC_VARW = 26
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SHEET_EXTD_VARW = 27
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SHEET_CURRENCIES_VARW = 28
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SHEET_INTERNAL_VARW = 29
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SHEET_LETTERLIKE_MATHS_VARW = 30
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SHEET_ENCLOSED_ALPHNUM_SUPL_VARW = 31
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SHEET_TAMIL_VARW = 32
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SHEET_BENGALI_VARW = 33
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SHEET_BRAILLE_VARW = 34
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SHEET_SUNDANESE_VARW = 35
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SHEET_DEVANAGARI2_INTERNAL_VARW = 36
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SHEET_CODESTYLE_ASCII_VARW = 37
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SHEET_ALPHABETIC_PRESENTATION_FORMS = 38
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SHEET_HENTAIGANA_VARW = 39
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SHEET_UNKNOWN = 254
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FILE_LIST = [
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"ascii_variable.tga",
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"hangul_johab.tga",
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"latinExtA_variable.tga",
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"latinExtB_variable.tga",
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"kana_variable.tga",
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"cjkpunct_variable.tga",
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"wenquanyi.tga",
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"cyrilic_variable.tga",
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"halfwidth_fullwidth_variable.tga",
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"unipunct_variable.tga",
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"greek_variable.tga",
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"thai_variable.tga",
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"hayeren_variable.tga",
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"kartuli_variable.tga",
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"ipa_ext_variable.tga",
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"futhark.tga",
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"latinExt_additional_variable.tga",
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"puae000-e0ff.tga",
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"cyrilic_bulgarian_variable.tga",
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"cyrilic_serbian_variable.tga",
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"tsalagi_variable.tga",
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"phonetic_extensions_variable.tga",
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"devanagari_variable.tga",
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"kartuli_allcaps_variable.tga",
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"diacritical_marks_variable.tga",
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"greek_polytonic_xyswap_variable.tga",
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"latinExtC_variable.tga",
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"latinExtD_variable.tga",
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"currencies_variable.tga",
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"internal_variable.tga",
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"letterlike_symbols_variable.tga",
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"enclosed_alphanumeric_supplement_variable.tga",
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"tamil_extrawide_variable.tga",
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"bengali_variable.tga",
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"braille_variable.tga",
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"sundanese_variable.tga",
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"devanagari_internal_extrawide_variable.tga",
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"pua_codestyle_ascii_variable.tga",
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"alphabetic_presentation_forms_extrawide_variable.tga",
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"hentaigana_variable.tga",
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]
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CODE_RANGE = [
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list(range(0x00, 0x100)), # 0: ASCII
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list(range(0x1100, 0x1200)) + list(range(0xA960, 0xA980)) + list(range(0xD7B0, 0xD800)), # 1: Hangul Jamo
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list(range(0x100, 0x180)), # 2: Latin Ext A
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list(range(0x180, 0x250)), # 3: Latin Ext B
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list(range(0x3040, 0x3100)) + list(range(0x31F0, 0x3200)), # 4: Kana
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list(range(0x3000, 0x3040)), # 5: CJK Punct
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list(range(0x3400, 0xA000)), # 6: Unihan
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list(range(0x400, 0x530)), # 7: Cyrillic
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list(range(0xFF00, 0x10000)), # 8: Halfwidth/Fullwidth
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list(range(0x2000, 0x20A0)), # 9: Uni Punct
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list(range(0x370, 0x3CF)), # 10: Greek
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list(range(0xE00, 0xE60)), # 11: Thai
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list(range(0x530, 0x590)), # 12: Armenian
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list(range(0x10D0, 0x1100)), # 13: Georgian
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list(range(0x250, 0x300)), # 14: IPA
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list(range(0x16A0, 0x1700)), # 15: Runic
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list(range(0x1E00, 0x1F00)), # 16: Latin Ext Additional
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list(range(0xE000, 0xE100)), # 17: Custom Sym (PUA)
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list(range(0xF0000, 0xF0060)), # 18: Bulgarian
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list(range(0xF0060, 0xF00C0)), # 19: Serbian
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list(range(0x13A0, 0x13F6)), # 20: Cherokee
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list(range(0x1D00, 0x1DC0)), # 21: Phonetic Ext
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list(range(0x900, 0x980)) + list(range(0xF0100, 0xF0500)), # 22: Devanagari
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list(range(0x1C90, 0x1CC0)), # 23: Georgian Caps
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list(range(0x300, 0x370)), # 24: Diacritical Marks
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list(range(0x1F00, 0x2000)), # 25: Greek Polytonic
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list(range(0x2C60, 0x2C80)), # 26: Latin Ext C
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list(range(0xA720, 0xA800)), # 27: Latin Ext D
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list(range(0x20A0, 0x20D0)), # 28: Currencies
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list(range(0xFFE00, 0xFFFA0)), # 29: Internal
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list(range(0x2100, 0x2150)), # 30: Letterlike
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list(range(0x1F100, 0x1F200)), # 31: Enclosed Alphanum Supl
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list(range(0x0B80, 0x0C00)) + list(range(0xF00C0, 0xF0100)), # 32: Tamil
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list(range(0x980, 0xA00)), # 33: Bengali
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list(range(0x2800, 0x2900)), # 34: Braille
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list(range(0x1B80, 0x1BC0)) + list(range(0x1CC0, 0x1CD0)) + list(range(0xF0500, 0xF0510)), # 35: Sundanese
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list(range(0xF0110, 0xF0130)), # 36: Devanagari2 Internal
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list(range(0xF0520, 0xF0580)), # 37: Codestyle ASCII
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list(range(0xFB00, 0xFB18)), # 38: Alphabetic Presentation
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list(range(0x1B000, 0x1B170)), # 39: Hentaigana
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]
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CODE_RANGE_HANGUL_COMPAT = range(0x3130, 0x3190)
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ALT_CHARSET_CODEPOINT_OFFSETS = [
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0,
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0xF0000 - 0x400, # Bulgarian
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0xF0060 - 0x400, # Serbian
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0xF0520 - 0x20, # Codestyle
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]
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ALT_CHARSET_CODEPOINT_DOMAINS = [
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range(0, 0x10FFFF + 1),
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range(0x400, 0x460),
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range(0x400, 0x460),
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range(0x20, 0x80),
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]
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# Unicode spacing characters
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NQSP = 0x2000
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MQSP = 0x2001
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ENSP = 0x2002
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EMSP = 0x2003
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THREE_PER_EMSP = 0x2004
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QUARTER_EMSP = 0x2005
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SIX_PER_EMSP = 0x2006
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FSP = 0x2007
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PSP = 0x2008
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THSP = 0x2009
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HSP = 0x200A
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ZWSP = 0x200B
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ZWNJ = 0x200C
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ZWJ = 0x200D
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SHY = 0xAD
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NBSP = 0xA0
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OBJ = 0xFFFC
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FIXED_BLOCK_1 = 0xFFFD0
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MOVABLE_BLOCK_M1 = 0xFFFE0
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MOVABLE_BLOCK_1 = 0xFFFF0
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CHARSET_OVERRIDE_DEFAULT = 0xFFFC0
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CHARSET_OVERRIDE_BG_BG = 0xFFFC1
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CHARSET_OVERRIDE_SR_SR = 0xFFFC2
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CHARSET_OVERRIDE_CODESTYLE = 0xFFFC3
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# Alignment constants
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ALIGN_LEFT = 0
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ALIGN_RIGHT = 1
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ALIGN_CENTRE = 2
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ALIGN_BEFORE = 3
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# Stack constants
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STACK_UP = 0
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STACK_DOWN = 1
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STACK_BEFORE_N_AFTER = 2
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STACK_UP_N_DOWN = 3
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STACK_DONT = 4
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def is_variable(filename):
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return filename.endswith("_variable.tga")
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def is_xy_swapped(filename):
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return "xyswap" in filename.lower()
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def is_extra_wide(filename):
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return "extrawide" in filename.lower()
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def get_cell_width(sheet_index):
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"""Returns the cell pitch in the sprite sheet (includes HGAP_VAR for variable sheets)."""
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fn = FILE_LIST[sheet_index]
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if is_extra_wide(fn):
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return W_WIDEVAR_INIT + HGAP_VAR # 32
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if is_variable(fn):
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return W_VAR_INIT + HGAP_VAR # 16
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if sheet_index == SHEET_UNIHAN:
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return W_UNIHAN
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if sheet_index == SHEET_HANGUL:
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return W_HANGUL_BASE
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if sheet_index == SHEET_CUSTOM_SYM:
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return SIZE_CUSTOM_SYM
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if sheet_index == SHEET_RUNIC:
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return W_LATIN_WIDE
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return W_VAR_INIT + HGAP_VAR
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def get_cell_height(sheet_index):
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if sheet_index == SHEET_UNIHAN:
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return H_UNIHAN
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if sheet_index == SHEET_CUSTOM_SYM:
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return SIZE_CUSTOM_SYM
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return H
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def get_columns(sheet_index):
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if sheet_index == SHEET_UNIHAN:
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return 256
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return 16
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# Hangul constants
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JUNG_COUNT = 21
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JONG_COUNT = 28
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# Hangul shape arrays (sorted sets)
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JUNGSEONG_I = frozenset([21, 61])
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JUNGSEONG_OU = frozenset([9, 13, 14, 18, 34, 35, 39, 45, 51, 53, 54, 64, 73, 80, 83])
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JUNGSEONG_OU_COMPLEX = frozenset(
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[10, 11, 16] + list(range(22, 34)) + [36, 37, 38] + list(range(41, 45)) +
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list(range(46, 51)) + list(range(56, 60)) + [63] + list(range(67, 73)) +
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list(range(74, 80)) + list(range(81, 84)) + list(range(85, 92)) + [93, 94]
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)
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JUNGSEONG_RIGHTIE = frozenset([2, 4, 6, 8, 11, 16, 32, 33, 37, 42, 44, 48, 50, 71, 72, 75, 78, 79, 83, 86, 87, 88, 94])
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JUNGSEONG_OEWI = frozenset([12, 15, 17, 40, 52, 55, 89, 90, 91])
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JUNGSEONG_EU = frozenset([19, 62, 66])
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JUNGSEONG_YI = frozenset([20, 60, 65])
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JUNGSEONG_UU = frozenset([14, 15, 16, 17, 18, 27, 30, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 59, 67, 68, 73, 77, 78, 79, 80, 81, 82, 83, 84, 91])
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JUNGSEONG_WIDE = frozenset(list(JUNGSEONG_OU) + list(JUNGSEONG_EU))
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CHOSEONG_GIYEOKS = frozenset([0, 1, 15, 23, 30, 34, 45, 51, 56, 65, 82, 90, 100, 101, 110, 111, 115])
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HANGUL_PEAKS_WITH_EXTRA_WIDTH = frozenset([2, 4, 6, 8, 11, 16, 32, 33, 37, 42, 44, 48, 50, 71, 75, 78, 79, 83, 86, 87, 88, 94])
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GIYEOK_REMAPPING = {5: 19, 6: 20, 7: 21, 8: 22, 11: 23, 12: 24}
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def is_hangul_choseong(c):
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return 0x1100 <= c <= 0x115F or 0xA960 <= c <= 0xA97F
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def is_hangul_jungseong(c):
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return 0x1160 <= c <= 0x11A7 or 0xD7B0 <= c <= 0xD7C6
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def is_hangul_jongseong(c):
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return 0x11A8 <= c <= 0x11FF or 0xD7CB <= c <= 0xD7FB
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def is_hangul_compat(c):
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return 0x3130 <= c <= 0x318F
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def to_hangul_choseong_index(c):
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if 0x1100 <= c <= 0x115F:
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return c - 0x1100
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if 0xA960 <= c <= 0xA97F:
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return c - 0xA960 + 96
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raise ValueError(f"Not a choseong: U+{c:04X}")
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def to_hangul_jungseong_index(c):
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if 0x1160 <= c <= 0x11A7:
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return c - 0x1160
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if 0xD7B0 <= c <= 0xD7C6:
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return c - 0xD7B0 + 72
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return None
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def to_hangul_jongseong_index(c):
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if 0x11A8 <= c <= 0x11FF:
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return c - 0x11A8 + 1
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if 0xD7CB <= c <= 0xD7FB:
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return c - 0xD7CB + 88 + 1
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return None
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def get_han_initial_row(i, p, f):
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if p in JUNGSEONG_I:
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ret = 3
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elif p in JUNGSEONG_OEWI:
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ret = 11
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elif p in JUNGSEONG_OU_COMPLEX:
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ret = 7
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elif p in JUNGSEONG_OU:
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ret = 5
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elif p in JUNGSEONG_EU:
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ret = 9
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elif p in JUNGSEONG_YI:
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ret = 13
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else:
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ret = 1
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if f != 0:
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ret += 1
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if p in JUNGSEONG_UU and i in CHOSEONG_GIYEOKS:
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mapped = GIYEOK_REMAPPING.get(ret)
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if mapped is None:
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raise ValueError(f"Giyeok remapping failed: i={i} p={p} f={f} ret={ret}")
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return mapped
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return ret
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def get_han_medial_row(i, p, f):
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return 15 if f == 0 else 16
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def get_han_final_row(i, p, f):
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return 17 if p not in JUNGSEONG_RIGHTIE else 18
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# Kerning constants
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KEMING_BIT_MASK = [1 << b for b in [7, 6, 5, 4, 3, 2, 1, 0, 15, 14]]
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# Special characters for r+dot kerning
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LOWERCASE_RS = frozenset([0x72, 0x155, 0x157, 0x159, 0x211, 0x213, 0x27c, 0x1e59, 0x1e58, 0x1e5f])
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DOTS = frozenset([0x2c, 0x2e])
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# Devanagari internal encoding
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DEVANAGARI_UNICODE_NUQTA_TABLE = [0xF0170, 0xF0171, 0xF0172, 0xF0177, 0xF017C, 0xF017D, 0xF0186, 0xF018A]
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def to_deva_internal(c):
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if 0x0915 <= c <= 0x0939:
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return c - 0x0915 + 0xF0140
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if 0x0958 <= c <= 0x095F:
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return DEVANAGARI_UNICODE_NUQTA_TABLE[c - 0x0958]
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raise ValueError(f"No internal form for U+{c:04X}")
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DEVANAGARI_CONSONANTS = frozenset(
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list(range(0x0915, 0x093A)) + list(range(0x0958, 0x0960)) +
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list(range(0x0978, 0x0980)) + list(range(0xF0140, 0xF0500)) +
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list(range(0xF0106, 0xF010A))
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)
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# Sundanese internal forms
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SUNDANESE_ING = 0xF0500
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SUNDANESE_ENG = 0xF0501
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SUNDANESE_EUNG = 0xF0502
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SUNDANESE_IR = 0xF0503
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SUNDANESE_ER = 0xF0504
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SUNDANESE_EUR = 0xF0505
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SUNDANESE_LU = 0xF0506
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# Tamil constants
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TAMIL_KSSA = 0xF00ED
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TAMIL_SHRII = 0xF00EE
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TAMIL_I = 0xBBF
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TAMIL_LIGATING_CONSONANTS = [
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0x0B95, 0x0B99, 0x0B9A, 0x0B9E, 0x0B9F, 0x0BA3, 0x0BA4, 0x0BA8,
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0x0BA9, 0x0BAA, 0x0BAE, 0x0BAF, 0x0BB0, 0x0BB1, 0x0BB2, 0x0BB3,
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0x0BB4, 0x0BB5,
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]
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# Devanagari special codepoints
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DEVANAGARI_VIRAMA = 0x94D
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DEVANAGARI_NUQTA = 0x93C
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DEVANAGARI_RA = to_deva_internal(0x930)
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DEVANAGARI_YA = to_deva_internal(0x92F)
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DEVANAGARI_RRA = to_deva_internal(0x931)
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DEVANAGARI_VA = to_deva_internal(0x935)
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DEVANAGARI_HA = to_deva_internal(0x939)
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DEVANAGARI_U = 0x941
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DEVANAGARI_UU = 0x942
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DEVANAGARI_I_VOWEL = 0x093F
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DEVANAGARI_II_VOWEL = 0x0940
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DEVANAGARI_RYA = 0xF0106
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DEVANAGARI_HALF_RYA = 0xF0107
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DEVANAGARI_OPEN_YA = 0xF0108
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DEVANAGARI_OPEN_HALF_YA = 0xF0109
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DEVANAGARI_ALT_HALF_SHA = 0xF010F
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DEVANAGARI_RA_SUB = 0xF010A # below-base RA (rakaar); transient glyph for blwf/cjct
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DEVANAGARI_EYELASH_RA = 0xF010B
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DEVANAGARI_RA_SUPER = 0xF010C
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DEVANAGARI_RA_SUPER_COMPLEX = 0xF010D
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MARWARI_DD = 0x978
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MARWARI_LIG_DD_R = 0xF010E
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DEVANAGARI_SYLL_RU = 0xF0100
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DEVANAGARI_SYLL_RUU = 0xF0101
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DEVANAGARI_SYLL_RRU = 0xF0102
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DEVANAGARI_SYLL_RRUU = 0xF0103
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DEVANAGARI_SYLL_HU = 0xF0104
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DEVANAGARI_SYLL_HUU = 0xF0105
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# Devanagari ligature codepoints
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DEVANAGARI_LIG_K_T = 0xF01BC
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DEVANAGARI_LIG_K_SS = 0xF01A1
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DEVANAGARI_LIG_J_NY = 0xF01A2
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DEVANAGARI_LIG_T_T = 0xF01A3
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DEVANAGARI_LIG_N_T = 0xF01A4
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DEVANAGARI_LIG_N_N = 0xF01A5
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DEVANAGARI_LIG_S_V = 0xF01A6
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DEVANAGARI_LIG_SS_P = 0xF01A7
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DEVANAGARI_LIG_SH_C = 0xF01A8
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DEVANAGARI_LIG_SH_N = 0xF01A9
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DEVANAGARI_LIG_SH_V = 0xF01AA
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DEVANAGARI_LIG_J_Y = 0xF01AB
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DEVANAGARI_LIG_J_J_Y = 0xF01AC
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MARWARI_LIG_DD_DD = 0xF01BA
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MARWARI_LIG_DD_DDH = 0xF01BB
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DEVANAGARI_ANUSVARA_LOWER = 0xF016C
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MARWARI_LIG_DD_Y = 0xF016E
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MARWARI_HALFLIG_DD_Y = 0xF016F
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# Devanagari range sets for feature generation
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DEVANAGARI_PRESENTATION_CONSONANTS = range(0xF0140, 0xF0230)
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DEVANAGARI_PRESENTATION_CONSONANTS_HALF = range(0xF0230, 0xF0320)
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DEVANAGARI_PRESENTATION_CONSONANTS_WITH_RA = range(0xF0320, 0xF0410)
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DEVANAGARI_PRESENTATION_CONSONANTS_WITH_RA_HALF = range(0xF0410, 0xF0500)
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# Index functions
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def _kana_index_y(c):
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return 12 if 0x31F0 <= c <= 0x31FF else (c - 0x3040) // 16
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def _unihan_index_y(c):
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return (c - 0x3400) // 256
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def _devanagari_index_y(c):
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return ((c - 0x0900) if c < 0xF0000 else (c - 0xF0080)) // 16
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def _tamil_index_y(c):
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return ((c - 0x0B80) if c < 0xF0000 else (c - 0xF0040)) // 16
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def _sundanese_index_y(c):
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if c >= 0xF0500:
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return (c - 0xF04B0) // 16
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if c < 0x1BC0:
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return (c - 0x1B80) // 16
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return (c - 0x1C80) // 16
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def index_x(c):
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return c % 16
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def unihan_index_x(c):
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return (c - 0x3400) % 256
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def index_y(sheet_index, c):
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"""Y-index (row) for codepoint c in the given sheet."""
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return {
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SHEET_ASCII_VARW: lambda: c // 16,
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SHEET_UNIHAN: lambda: _unihan_index_y(c),
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SHEET_EXTA_VARW: lambda: (c - 0x100) // 16,
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SHEET_EXTB_VARW: lambda: (c - 0x180) // 16,
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SHEET_KANA: lambda: _kana_index_y(c),
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SHEET_CJK_PUNCT: lambda: (c - 0x3000) // 16,
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SHEET_CYRILIC_VARW: lambda: (c - 0x400) // 16,
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SHEET_HALFWIDTH_FULLWIDTH_VARW: lambda: (c - 0xFF00) // 16,
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SHEET_UNI_PUNCT_VARW: lambda: (c - 0x2000) // 16,
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SHEET_GREEK_VARW: lambda: (c - 0x370) // 16,
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SHEET_THAI_VARW: lambda: (c - 0xE00) // 16,
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SHEET_CUSTOM_SYM: lambda: (c - 0xE000) // 16,
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SHEET_HAYEREN_VARW: lambda: (c - 0x530) // 16,
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SHEET_KARTULI_VARW: lambda: (c - 0x10D0) // 16,
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SHEET_IPA_VARW: lambda: (c - 0x250) // 16,
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SHEET_RUNIC: lambda: (c - 0x16A0) // 16,
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SHEET_LATIN_EXT_ADD_VARW: lambda: (c - 0x1E00) // 16,
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SHEET_BULGARIAN_VARW: lambda: (c - 0xF0000) // 16,
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SHEET_SERBIAN_VARW: lambda: (c - 0xF0060) // 16,
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SHEET_TSALAGI_VARW: lambda: (c - 0x13A0) // 16,
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SHEET_PHONETIC_EXT_VARW: lambda: (c - 0x1D00) // 16,
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SHEET_DEVANAGARI_VARW: lambda: _devanagari_index_y(c),
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SHEET_KARTULI_CAPS_VARW: lambda: (c - 0x1C90) // 16,
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SHEET_DIACRITICAL_MARKS_VARW: lambda: (c - 0x300) // 16,
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SHEET_GREEK_POLY_VARW: lambda: (c - 0x1F00) // 16,
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SHEET_EXTC_VARW: lambda: (c - 0x2C60) // 16,
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SHEET_EXTD_VARW: lambda: (c - 0xA720) // 16,
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SHEET_CURRENCIES_VARW: lambda: (c - 0x20A0) // 16,
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SHEET_INTERNAL_VARW: lambda: (c - 0xFFE00) // 16,
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SHEET_LETTERLIKE_MATHS_VARW: lambda: (c - 0x2100) // 16,
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SHEET_ENCLOSED_ALPHNUM_SUPL_VARW: lambda: (c - 0x1F100) // 16,
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SHEET_TAMIL_VARW: lambda: _tamil_index_y(c),
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SHEET_BENGALI_VARW: lambda: (c - 0x980) // 16,
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SHEET_BRAILLE_VARW: lambda: (c - 0x2800) // 16,
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SHEET_SUNDANESE_VARW: lambda: _sundanese_index_y(c),
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SHEET_DEVANAGARI2_INTERNAL_VARW: lambda: (c - 0xF0110) // 16,
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SHEET_CODESTYLE_ASCII_VARW: lambda: (c - 0xF0520) // 16,
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SHEET_ALPHABETIC_PRESENTATION_FORMS: lambda: (c - 0xFB00) // 16,
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SHEET_HENTAIGANA_VARW: lambda: (c - 0x1B000) // 16,
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SHEET_HANGUL: lambda: 0,
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}.get(sheet_index, lambda: c // 16)()
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