Art: labelled palette reference cards

make_palettes.py now also emits kissaten-full-card.png and
kissaten-portrait-card.png — each swatch shown with its palette index and
hex code, so a colour can be identified while hand-editing without
counting along an anonymous strip.

Text is drawn with a hand-rolled 3x5 bitmap font covering digits, A-F and
'#'; there is no font library available here.

Drops palette_ref.png, superseded by kissaten-full.png.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

projects/kissaten_yugure/tools/make_palettes.py

@@ -67,6 +67,49 @@ def swatches(path, cols, sw=32, h=64):
     write_png(path, [[c for c in cols for _ in range(sw)]] * h)
 
 
+# 3x5 glyphs, enough for indices and hex codes. No font library here.
+GLYPHS = {
+    "0": "111101101101111", "1": "010110010010111", "2": "111001111100111",
+    "3": "111001111001111", "4": "101101111001001", "5": "111100111001111",
+    "6": "111100111101111", "7": "111001001001001", "8": "111101111101111",
+    "9": "111101111001111", "A": "111101111101101", "B": "110101110101110",
+    "C": "111100100100111", "D": "110101101101110", "E": "111100111100111",
+    "F": "111100111100100", "#": "101111101111101", " ": "000000000000000",
+    "-": "000000111000000",
+}
+
+
+def _text(px, x, y, s, col, scale=2):
+    for ch in s.upper():
+        g = GLYPHS.get(ch, GLYPHS[" "])
+        for gy in range(5):
+            for gx in range(3):
+                if g[gy*3 + gx] == "1":
+                    for sy in range(scale):
+                        for sx in range(scale):
+                            yy, xx = y + gy*scale + sy, x + gx*scale + sx
+                            if 0 <= yy < len(px) and 0 <= xx < len(px[0]):
+                                px[yy][xx] = col
+        x += 4 * scale
+
+
+def card(path, cols, names, idx, scale=2):
+    """Labelled reference: swatch, palette index, hex code, role name."""
+    rowh, sww, pad = 7*scale + 8, 22*scale, 6
+    W = sww + pad*2 + 4*scale*22
+    H = rowh*len(cols) + pad*2
+    bg, fg = (26, 26, 26), (255, 255, 219)
+    px = [[bg]*W for _ in range(H)]
+    for i, (c, n, ix) in enumerate(zip(cols, names, idx)):
+        y = pad + i*rowh
+        for yy in range(y, y + 7*scale):
+            for xx in range(pad, pad + sww):
+                px[yy][xx] = c
+        label = f"{ix:02d} #{c[0]:02X}{c[1]:02X}{c[2]:02X}"
+        _text(px, pad + sww + pad, y + scale, label, fg, scale)
+    write_png(path, px)
+
+
 def emit(stem, idx, title):
     cols = [PALETTE[i] for i in idx]
     names = [NAMES[i] for i in idx]
@@ -76,7 +119,8 @@ def emit(stem, idx, title):
     aco(p("aco"), cols, names)
     act(p("act"), cols)
     swatches(p("png"), cols)
-    print(f"{stem}: {len(cols)} colours -> .gpl .ase .aco .act .png")
+    card(os.path.normpath(os.path.join(OUT, f"{stem}-card.png")), cols, names, idx)
+    print(f"{stem}: {len(cols)} colours -> .gpl .ase .aco .act .png + -card.png")
 
 
 if __name__ == "__main__":