Ports the CP437 font renderer from wds to the framebuffer: proportional advance from measured ink bounds, luminance-keyed mask, word wrap. The right 80 px strip becomes a HUD with name, HP bar, population and a log fed from sim events; Attacked/Died now carry the type ids the log needs, since the victim is gone from the world by the time events are read. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
22 lines
1017 B
Markdown
Executable File
22 lines
1017 B
Markdown
Executable File
# Text Renderer
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## Current state
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`game/src/font.rs` — a CP437 bitmap font ported from the `wds` project.
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- Atlas: 32 columns × 8 rows of fixed cells, codepoint = index (`A` at 65 → column 1,
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row 2). Loaded with `Image::from_png`; the mask is derived from luminance (white on
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black), so the caller paints glyphs in any RGB565 color.
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- Proportional advance: on load the ink span of every glyph (leftmost/rightmost lit
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column) is measured. `draw` crops to that span and advances by ink width + 1 px
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tracking; blank glyphs (space) advance half a cell.
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- `cp437(char)` maps ASCII 1:1 and the accented letters the atlas has (ä ö ü ß …);
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everything else becomes `?`.
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- `text_width` and `wrap` (word wrap with hard `\n`) for layout.
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- Font in use: `assets/fonts/cga-8x8.png` (Oldschool PC Font Pack, CGA 8×8).
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## Open questions
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- A second, smaller or larger font (the EGA 8×14 from `wds`) once the UI needs hierarchy.
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- Text color per span / inline markup for the log — not before it is needed.
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