mirror of
https://github.com/bryanthaboi/gen1recomp
synced 2026-10-02 23:55:22 -04:00
bryanthaboi
f56e82de81
the launcher runs before Game:load, so #767's Strings hooks had nothing filling the catalog and a restart could not help - the ordering is the same every launch. reads lang/strings.lua from enabled mods only, data not the entry chunk, sandboxed. plus a plain pixel fallback on the ui faces, or the kana draw as tofu.
63 lines
2.5 KiB
Lua
63 lines
2.5 KiB
Lua
-- Per-glyph fallback for the launcher's UI faces.
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--
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-- The launcher draws with LÖVE's default face, which covers Latin and little
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-- else. That was invisible while the launcher was English-only, but its text
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-- now goes through Strings (#767/#791) and a translation mod's catalog is
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-- loaded before the first launcher frame (LauncherMods.translationStrings), so
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-- the moment one is Japanese every kana lands as a tofu box.
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--
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-- Font:setFallbacks fills ONLY the codepoints the primary face is missing, so
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-- Latin keeps the launcher's own look and nothing about an English install
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-- changes; only the glyphs it genuinely cannot draw come from the bundled
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-- Plain Pixel (assets/fonts/plainpixel/README.md: CC-BY 4.0, Douglas
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-- Vautour), which covers kana and CJK. That is the same face the in-game TTF
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-- text mode uses, so a translated launcher and a translated game agree.
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--
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-- Measuring and rendering must attach the same fallback or the launcher
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-- measures a width it does not draw -- which is how buttons clip.
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local UiFont = {}
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local FALLBACK_PATH = "assets/fonts/plainpixel/PlainPixel-Regular.ttf"
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-- Plain Pixel only rasterizes evenly at multiples of its 15px design em, so
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-- snap rather than matching the primary size exactly: a fallback glyph a pixel
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-- off its grid is far more obvious than one a pixel off its neighbours.
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local DESIGN_EM = 15
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local cache = {}
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local unavailable = false
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local function fallbackFor(size)
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if unavailable then return nil end
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local snapped = math.max(DESIGN_EM,
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math.floor(size / DESIGN_EM + 0.5) * DESIGN_EM)
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local hit = cache[snapped]
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if hit ~= nil then return hit or nil end
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local ok, font = pcall(love.graphics.newFont, FALLBACK_PATH, snapped)
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if not ok or not font then
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-- one failure means the file is absent (a trimmed build); stop retrying
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unavailable = true
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return nil
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end
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if font.setFilter then pcall(font.setFilter, font, "nearest", "nearest") end
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cache[snapped] = font
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return font
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end
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-- attach(font, size) -> font. Safe to call on every cache miss; a font whose
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-- fallback is already set is left alone, and any failure is swallowed so a
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-- missing fallback file can never take the launcher down with it.
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function UiFont.attach(font, size)
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if not (font and font.setFallbacks) then return font end
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local fallback = fallbackFor(size or (font.getHeight and font:getHeight()) or DESIGN_EM)
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if not fallback or rawequal(fallback, font) then return font end
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pcall(font.setFallbacks, font, fallback)
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return font
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end
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function UiFont.clear()
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cache, unavailable = {}, false
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end
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return UiFont
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