# Text Renderer

## Current state

`game/src/font.rs` — a CP437 bitmap font ported from the `wds` project.

- Atlas: 32 columns × 8 rows of fixed cells, codepoint = index (`A` at 65 → column 1,
  row 2). Loaded with `Image::from_png`; the mask is derived from luminance (white on
  black), so the caller paints glyphs in any RGB565 color.
- Proportional advance: on load the ink span of every glyph (leftmost/rightmost lit
  column) is measured. `draw` crops to that span and advances by ink width + 1 px
  tracking; blank glyphs (space) advance half a cell.
- `cp437(char)` maps ASCII 1:1 and the accented letters the atlas has (ä ö ü ß …);
  everything else becomes `?`.
- `text_width` and `wrap` (word wrap with hard `\n`) for layout.
- Font in use: `assets/fonts/micro-chat-8x9.png` — VEXED's Micro Chat (5 px, CC-BY),
  repacked into the CP437 layout by `tools/mkfont.py` from the source sheet in
  `assets/fonts/Micro-Chat-All/` (8-column grid with 1 px grid lines, 8×10 cells, black
  glyphs on transparent). Cells are cropped to source rows 1..9 — umlaut dots down to
  descenders — giving 8×9 cells; the HUD uses an 8 px line height. The sheet marks the
  space cell with a bar, which the tool drops. Regenerate with `python3 tools/mkfont.py`.

## Open questions

- A second, larger font (the CGA 8×8 / EGA 8×14 from `wds`) once the UI needs hierarchy.
- Text color per span / inline markup for the log — not before it is needed.