From 9b554187af86d4d65c08cbfa42fa01f3d0fcc575 Mon Sep 17 00:00:00 2001
From: Jurjen Ladenius <jurjen@ladenius.net>
Date: Mon, 29 Jun 2026 23:56:22 +0200
Subject: [PATCH] Restore Japanese-glyph logo shape with evened bars
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The uniform-thickness pass had dropped the bars' left overhangs, turning
the logo into a pinwheel (swastika-like). Restore the original
firehawk.sc5 layout — a vertical spine crossed by two bars that overhang
it on both sides, plus a hanging lower-right stroke — but even out the
weights: both bars and the leg are a uniform 6px, with the spine slightly
thicker (8px) to keep the original glyph's character.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
---
 projects/mazegame/emul/rom/mazegame.rom | Bin 262144 -> 262144 bytes
 projects/mazegame/mazegame.c            |  59 +++++++++++++-----------
 2 files changed, 31 insertions(+), 28 deletions(-)

diff --git a/projects/mazegame/emul/rom/mazegame.rom b/projects/mazegame/emul/rom/mazegame.rom
index e2ee18ad04ec6616e21f82df3095936261eaacd1..1d0fedf97b376b189c4065800c4226f981b9d09e 100644
GIT binary patch
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diff --git a/projects/mazegame/mazegame.c b/projects/mazegame/mazegame.c
index 8be93ff..848d2b8 100644
--- a/projects/mazegame/mazegame.c
+++ b/projects/mazegame/mazegame.c
@@ -738,20 +738,22 @@ static void LogoFadeSet(const u8* idx, u8 n, u8 delay_halts)
 	}
 }
 
-// The logo is an "F" and "H" combined, sharing the left vertical stroke and the
-// middle crossbar. Each stroke shimmers in and out on its own before the whole
-// logo lights up. Because the stem and crossbars overlap, the two crossing
-// points get their OWN palette entries (6, 7) that are lit during BOTH the
-// crossbar's turn and the stem's turn — so neither the horizontals nor the
-// verticals ever show a gap. Strokes are partitioned (no shared pixels):
-//   pal2 = top crossbar arms      pal3 = stem (excl. crossings)   pal6 = top crossing
-//   pal4 = middle crossbar arms   pal5 = right leg                pal7 = middle crossing
-// Origin X is even so the byte-aligned HMMV fills land on pixel boundaries.
-// All strokes share a uniform 6-pixel thickness (vertical width == horizontal
-// height) so the F+H reads evenly.
-#define LOGO_OX  106   // logo origin X (even: keeps HMMV fills pixel-aligned)
+// The logo is a Japanese-letter-like glyph (from the original firehawk.sc5): a
+// vertical spine with two crossing bars that overhang it on BOTH sides, plus a
+// short hanging stroke on the lower right. Each stroke shimmers in and out on
+// its own before the whole logo lights up. Because the spine and bars overlap,
+// the two crossing points get their OWN palette entries (6, 7) that are lit
+// during BOTH the bar's turn and the spine's turn — so neither the horizontals
+// nor the verticals ever show a gap. Strokes are partitioned (no shared pixels):
+//   pal2 = top bar (overhangs)    pal3 = spine (excl. crossings)  pal6 = top crossing
+//   pal4 = mid bar (overhangs)    pal5 = lower-right stroke        pal7 = mid crossing
+// The spine is a touch thicker than the (evened) bars/leg, keeping the original
+// glyph's weight. Origin X and all widths are even so the byte-aligned HMMV
+// fills land on pixel boundaries.
+#define LOGO_OX  108   // logo origin X (even: keeps HMMV fills pixel-aligned)
 #define LOGO_OY  73    // logo origin Y
-#define LOGO_T   6     // stroke thickness (px)
+#define LOGO_SW  8     // spine width
+#define LOGO_BT  6     // bar height / leg width (evened)
 
 static void ShowLogoAnimation(void)
 {
@@ -768,21 +770,22 @@ static void ShowLogoAnimation(void)
 		VDP_SetPaletteEntry(i, 0);
 
 	// Draw the strokes. They are partitioned so no two share a pixel; the two
-	// stem/crossbar crossings are separate fills (pal6, pal7). Local x12..21 is
-	// the stem column; crossbars are split into left/right arms around it.
-	// Stem (vertical, width LOGO_T) at local x12, full height. Drawn as the three
-	// segments not covered by a crossbar, so the crossings (pal6/7) light separately.
-	VDP_CommandHMMV(LOGO_OX + 12, LOGO_OY +  0, LOGO_T,  2, 0x33); VDP_CommandWait(); // stem: above top bar
-	VDP_CommandHMMV(LOGO_OX + 12, LOGO_OY +  8, LOGO_T,  7, 0x33); VDP_CommandWait(); // stem: between bars
-	VDP_CommandHMMV(LOGO_OX + 12, LOGO_OY + 21, LOGO_T, 13, 0x33); VDP_CommandWait(); // stem: below mid bar
-	// Top crossbar (horizontal, height LOGO_T): right arm + stem crossing.
-	VDP_CommandHMMV(LOGO_OX + 18, LOGO_OY +  2, 16, LOGO_T, 0x22); VDP_CommandWait(); // top bar: arm
-	VDP_CommandHMMV(LOGO_OX + 12, LOGO_OY +  2, LOGO_T, LOGO_T, 0x66); VDP_CommandWait(); // top crossing
-	// Middle crossbar (horizontal, height LOGO_T): arm to the leg + stem crossing.
-	VDP_CommandHMMV(LOGO_OX + 18, LOGO_OY + 15, 10, LOGO_T, 0x44); VDP_CommandWait(); // mid bar: arm
-	VDP_CommandHMMV(LOGO_OX + 12, LOGO_OY + 15, LOGO_T, LOGO_T, 0x77); VDP_CommandWait(); // middle crossing
-	// Right leg (vertical, width LOGO_T), butts against the middle crossbar.
-	VDP_CommandHMMV(LOGO_OX + 28, LOGO_OY + 15, LOGO_T, 19, 0x55); VDP_CommandWait(); // right leg
+	// spine/bar crossings are separate fills (pal6, pal7). The spine sits at local
+	// x12 (width LOGO_SW); each bar overhangs it on the left (x8) and right.
+	// Spine: three segments not covered by a bar, so the crossings light separately.
+	VDP_CommandHMMV(LOGO_OX + 12, LOGO_OY +  0, LOGO_SW,  2, 0x33); VDP_CommandWait(); // spine: above top bar
+	VDP_CommandHMMV(LOGO_OX + 12, LOGO_OY +  8, LOGO_SW,  8, 0x33); VDP_CommandWait(); // spine: between bars
+	VDP_CommandHMMV(LOGO_OX + 12, LOGO_OY + 22, LOGO_SW, 12, 0x33); VDP_CommandWait(); // spine: below mid bar
+	// Top bar (height LOGO_BT): left overhang + spine crossing + right arm.
+	VDP_CommandHMMV(LOGO_OX +  8, LOGO_OY +  2,  4, LOGO_BT, 0x22); VDP_CommandWait(); // top bar: left overhang
+	VDP_CommandHMMV(LOGO_OX + 12, LOGO_OY +  2, LOGO_SW, LOGO_BT, 0x66); VDP_CommandWait(); // top crossing
+	VDP_CommandHMMV(LOGO_OX + 20, LOGO_OY +  2, 14, LOGO_BT, 0x22); VDP_CommandWait(); // top bar: right arm
+	// Middle bar (height LOGO_BT): left overhang + spine crossing + right arm (to leg).
+	VDP_CommandHMMV(LOGO_OX +  8, LOGO_OY + 16,  4, LOGO_BT, 0x44); VDP_CommandWait(); // mid bar: left overhang
+	VDP_CommandHMMV(LOGO_OX + 12, LOGO_OY + 16, LOGO_SW, LOGO_BT, 0x77); VDP_CommandWait(); // mid crossing
+	VDP_CommandHMMV(LOGO_OX + 20, LOGO_OY + 16,  8, LOGO_BT, 0x44); VDP_CommandWait(); // mid bar: right arm
+	// Lower-right stroke (vertical, width LOGO_BT), butts against the middle bar.
+	VDP_CommandHMMV(LOGO_OX + 28, LOGO_OY + 15, LOGO_BT, 19, 0x55); VDP_CommandWait(); // leg
 
 	VDP_EnableDisplay(TRUE);