Credit Claude Code: note at the top of the README, in CREDITS and the standalone file; pixel-art mark with link next to the licence on title and login screens

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/menu.rs

@@ -205,6 +205,7 @@ enum Btn {
     StartMission,
     Goals,
     Repo,
+    ClaudeCode,
     Field(usize),
     DoLogin,
     Account,
@@ -216,6 +217,27 @@ enum Btn {
 }
 
 pub const REPO_URL: &str = "https://git.familie-zink.org/zink/dungeoncraft";
+pub const CLAUDE_CODE_URL: &str = "https://claude.com/claude-code";
+
+// the Claude Code mark as pixel art (drawn next to the "made with" note)
+const CLAUDE_MARK: [&str; 5] = [
+    "...############...",
+    "...##.######.##...",
+    ".################.",
+    "...############...",
+    "....#.#....#.#....",
+];
+
+pub fn draw_claude_mark(x: f32, y: f32, px: f32) {
+    let c = Color::from_rgba(0xd9, 0x77, 0x57, 255);
+    for (r, row) in CLAUDE_MARK.iter().enumerate() {
+        for (k, ch) in row.chars().enumerate() {
+            if ch == '#' {
+                draw_rectangle(x + k as f32 * px, y + r as f32 * px, px, px, c);
+            }
+        }
+    }
+}
 
 pub enum MenuAction {
     None,
@@ -236,6 +258,7 @@ pub enum MenuAction {
     EditName, // the name field was tapped (touch: ask with a browser dialog)
     StartMission(usize),
     OpenRepo,
+    OpenClaudeCode,
     Login(String, String),
     Logout,
     OpenAccount,
@@ -478,6 +501,7 @@ impl Menu {
             }
             Some(Btn::NameField) => MenuAction::EditName,
             Some(Btn::Repo) => MenuAction::OpenRepo,
+            Some(Btn::ClaudeCode) => MenuAction::OpenClaudeCode,
             Some(Btn::Field(i)) => {
                 self.focus = i;
                 MenuAction::EditField(i)
@@ -620,6 +644,19 @@ impl Menu {
     pub fn draw_license(&mut self, gfx: &Gfx) {
         let (sw, sh) = (sw(), sh());
         let (mx, my) = mouse();
+        // "made with Claude Code" with the pixel mark, a link to Claude Code
+        let made = tr("menu.made_with");
+        let px = (SMALL() * 2.0).round().max(2.0);
+        let mark_w = 18.0 * px;
+        let tw = gfx.measure(&made, SMALL());
+        let total = mark_w + CW() * 0.5 + tw;
+        let mx0 = grid_center(sw, total);
+        let my0 = sh - CH() * 4.0;
+        let r = Rect::new(mx0, my0, total, GH * SMALL() + 2.0);
+        let hot = r.contains(vec2(mx, my));
+        draw_claude_mark(mx0, my0 + (GH * SMALL() - 5.0 * px) * 0.5, px);
+        gfx.text(&made, mx0 + mark_w + CW() * 0.5, my0, SMALL(), if hot { FRAME_HI } else { Color::from_rgba(0xd9, 0x77, 0x57, 255) });
+        self.buttons.push((r, Btn::ClaudeCode));
         let lic = tr("menu.license");
         gfx.text(&lic, grid_center(sw, gfx.measure(&lic, SMALL())), sh - CH() * 2.5, SMALL(), DIM);
         let url = REPO_URL.trim_start_matches("https://");