Title screen: licence line and a link to the repository at the bottom

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

src/main.rs

@@ -678,6 +678,7 @@ async fn main() {
                         ui.show_help = false;
                         autosave_t = 0.0;
                     }
+                    MenuAction::OpenRepo => platform::open_url(menu::REPO_URL),
                     MenuAction::EditName => {
                         if let Some(n) = platform::prompt(&i18n::tr("saves.name"), &menu.save_name) {
                             menu.save_name = n.chars().filter(|c| !c.is_control()).take(40).collect();

src/menu.rs

@@ -201,8 +201,11 @@ enum Btn {
     Mission(usize),
     StartMission,
     Goals,
+    Repo,
 }
 
+pub const REPO_URL: &str = "https://git.familie-zink.org/zink/dungeoncraft";
+
 pub enum MenuAction {
     None,
     Consumed,
@@ -221,6 +224,7 @@ pub enum MenuAction {
     CloudDelete(String),
     EditName, // the name field was tapped (touch: ask with a browser dialog)
     StartMission(usize),
+    OpenRepo,
 }
 
 pub struct Menu {
@@ -403,6 +407,7 @@ impl Menu {
                 MenuAction::Consumed
             }
             Some(Btn::NameField) => MenuAction::EditName,
+            Some(Btn::Repo) => MenuAction::OpenRepo,
             Some(Btn::Campaign) => {
                 self.page = Some(Page::Campaign);
                 self.scroll = 0;
@@ -502,6 +507,22 @@ impl Menu {
         gfx.text(&hint, grid_center(sw, gfx.measure(&hint, SMALL())), sh - CH() * 8.0, SMALL(), DIM);
         let credit = tr("help.font");
         gfx.text(&credit, grid_center(sw, gfx.measure(&credit, SMALL())), sh - CH() * 7.0, SMALL(), DIM);
+        self.draw_license(gfx);
+    }
+
+    // licence and repository link at the bottom of the screen (title and login)
+    pub fn draw_license(&mut self, gfx: &Gfx) {
+        let (sw, sh) = (sw(), sh());
+        let (mx, my) = mouse();
+        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://");
+        let w = gfx.measure(url, SMALL());
+        let r = Rect::new(grid_center(sw, w), sh - CH() * 1.5, w, GH * SMALL() + 2.0);
+        let hot = r.contains(vec2(mx, my));
+        gfx.text(url, r.x, r.y, SMALL(), if hot { FRAME_HI } else { Color::new(0.5, 0.7, 1.0, 1.0) });
+        draw_rectangle(r.x, r.y + GH * SMALL(), r.w, (SMALL()).max(1.0), if hot { FRAME_HI } else { Color::new(0.5, 0.7, 1.0, 0.6) });
+        self.buttons.push((r, Btn::Repo));
     }
 
     // New game: choose the map size (width and height separately)

src/platform.rs

@@ -15,6 +15,7 @@ mod imp {
         fn dc_storage_get(key: *const u8, key_len: u32) -> i32;
         fn dc_storage_take(dst: *mut u8);
         fn dc_coarse_pointer() -> i32;
+        fn dc_open_url(u: *const u8, ul: u32);
         fn dc_prompt(t: *const u8, tl: u32, d: *const u8, dl: u32) -> i32;
         fn dc_storage_set(key: *const u8, key_len: u32, val: *const u8, val_len: u32);
         fn dc_cache_set(key: *const u8, key_len: u32, val: *const u8, val_len: u32);
@@ -62,6 +63,10 @@ mod imp {
         unsafe { dc_coarse_pointer() != 0 }
     }
 
+    pub fn open_url(url: &str) {
+        unsafe { dc_open_url(url.as_ptr(), url.len() as u32) }
+    }
+
     // asks for a text with the browser's dialog; None when cancelled
     pub fn prompt(title: &str, default: &str) -> Option<String> {
         unsafe {
@@ -122,6 +127,7 @@ mod imp {
     pub fn coarse_pointer() -> bool {
         false
     }
+    pub fn open_url(_url: &str) {}
     pub fn storage_set(key: &str, val: &str) {
         STORE.with(|s| s.borrow_mut().insert(key.to_string(), val.to_string()));
     }