mirror of
https://github.com/bryanthaboi/gen1recomp
synced 2026-09-26 13:33:27 -04:00
thibautbus
2701b930d8
Braille.encode spells a braille message from Latin letters, through Braille.CODE and the Latin charmap byte of any other character. That covers the US cart, but the European carts' braille lines use cells no character reaches: German ä (dots 3-4-5), the full cell, dot 5 alone. A translation mod therefore cannot hand over the German, Spanish or Italian braille, and the 39 lines of the Dotted Hole, Ruin Valley and Mt. Ember stay in English in every language. pret's braille font holds every dot combination (pokefirered/include/characters.h:282), so Braille.encode now draws a Unicode braille character (U+2800-U+283F) as that very cell, mapping Unicode's dot bits to the cart's cell numbering (dot 1 = 0x01, 4 = 0x02, 2 = 0x04, 5 = 0x08, 3 = 0x10, 6 = 0x20). A cell spells its own number sign, as the carts' braille does. Latin text is spelled as before.
65 lines
2.8 KiB
Lua
65 lines
2.8 KiB
Lua
#!/usr/bin/env luajit
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-- Braille.encode draws a Unicode braille cell (U+2800-U+283F) as that very cell,
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-- so a mod can hand over a European cart's braille unchanged: the braille font
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-- holds every dot combination (pokefirered/include/characters.h:282), and some
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-- carts use cells no Latin character spells (German ä, dots 3-4-5).
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package.path = "./?.lua;./?/init.lua;" .. package.path
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love = require("tests.love_stub")
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local T = require("tests.harness")
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local check = T.check
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local Braille = require("src.ui.game3.braille")
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local function cell(dots)
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local bits = 0
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for d in dots:gmatch("%d") do bits = bits + 2 ^ (tonumber(d) - 1) end
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return string.char(0xE2, 0xA0, 0x80 + bits)
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end
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-- The standard braille alphabet, dot numbers per letter.
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local LETTERS = {
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A = "1", B = "12", C = "14", D = "145", E = "15", F = "124", G = "1245", H = "125",
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I = "24", J = "245", K = "13", L = "123", M = "134", N = "1345", O = "135", P = "1234",
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Q = "12345", R = "1235", S = "234", T = "2345", U = "136", V = "1236", W = "2456",
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X = "1346", Y = "13456", Z = "1356",
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}
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local same = 0
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for letter, dots in pairs(LETTERS) do
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if Braille.encode(cell(dots))[1][1] == Braille.encode(letter)[1][1] then same = same + 1 end
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end
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check(same == 26, "each Unicode letter cell is the cart's cell for that letter (" .. same .. "/26)")
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local seen, distinct = {}, 0
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for bits = 0, 63 do
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local code = Braille.encode(string.char(0xE2, 0xA0, 0x80 + bits))[1][1]
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if type(code) == "number" and code >= 0 and code < Braille.NUM_CHARS and not seen[code] then
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seen[code] = true
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distinct = distinct + 1
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end
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end
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check(distinct == 64, "the 64 Unicode cells reach the 64 cells of the font (" .. distinct .. ")")
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check(Braille.encode(cell("345"))[1][1] == 0x1A, "German ä (dots 3-4-5) is drawn, which no Latin letter reaches")
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local line = Braille.encode(cell("3456") .. cell("1") .. cell("12"))[1]
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check(#line == 3 and line[1] == Braille.NUMBER,
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"a cart's own number sign stays one cell, with no second one added")
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check(Braille.width(cell("1") .. cell("12") .. "\n" .. cell("1")) == 2 * Braille.GLYPH_WIDTH,
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"the width counts cells, not UTF-8 bytes")
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local latin = Braille.encode("DIG HERE")[1]
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check(#latin == 8 and latin[1] == 0x0B, "Latin text still spells as before")
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-- pokefirered/src/scrcmd.c:1558 braillemessage: the script's text reaches the
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-- font through TextIR.toPlain, which must keep the cells a mod's IR carries.
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local TextIR = require("src.core.game3.scripting.text_ir")
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local plain = TextIR.toPlain({ { t = "text", s = cell("125") .. cell("1") .. cell("136") .. cell("2345") },
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{ t = "nl" }, { t = "text", s = cell("345") }, { t = "eos" } }, {})
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local lines = Braille.encode(plain)
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check(#lines == 2 and #lines[1] == 4 and lines[2][1] == 0x1A,
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"a mod's braille message (French HAUT, then German ä) reaches the font cell for cell")
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T.finish("game3_braille_unicode_test")
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