Add support for icons and cursors

Author: Tearth

games/snake/.gitignore

@@ -7,4 +7,7 @@
 Cargo.lock
 
 # These are backup files generated by rustfmt
-**/*.rs.bk
+**/*.rs.bk
+
+# Resource files
+*.res

games/snake/assets/cursor.aseprite

@@ -9,6 +9,9 @@ fn main() {
 
     #[cfg(windows)]
     link_windows_libs();
+
+    #[cfg(windows)]
+    set_windows_icon();
 }
 
 #[cfg(windows)]
@@ -19,3 +22,9 @@ fn link_windows_libs() {
     println!("cargo:rustc-link-lib=static=openal32");
     println!("cargo:rustc-link-lib=static=user32")
 }
+
+#[cfg(windows)]
+fn set_windows_icon() {
+    std::process::Command::new("llvm-rc").arg("./resources.rc").spawn().unwrap().wait().unwrap();
+    println!("cargo:rustc-link-arg=./games/snake/resources.res");
+}

games/snake/assets/cursor.ico

@@ -0,0 +1,2 @@
+APP_ICON ICON "./assets/icon.ico"
+CURSOR_ICON ICON "./assets/cursor.ico"

games/snake/assets/icon.aseprite

@@ -92,11 +92,13 @@ impl Scene<GlobalAppData> for MenuScene {
         Ok(())
     }
 
-    fn on_activation(&mut self, _app: &mut GameApp) -> Result<(), String> {
+    fn on_activation(&mut self, app: &mut GameApp) -> Result<(), String> {
+        app.window.set_cursor_visibility(true);
         Ok(())
     }
 
-    fn on_deactivation(&mut self, _app: &mut GameApp) -> Result<(), String> {
+    fn on_deactivation(&mut self, app: &mut GameApp) -> Result<(), String> {
+        app.window.set_cursor_visibility(false);
         Ok(())
     }
 

games/snake/assets/icon.ico

@@ -39,6 +39,8 @@ impl WindowWinAPI {
         unsafe {
             let timestamp = SystemTime::now().duration_since(UNIX_EPOCH).unwrap().as_millis();
             let class_cstr = CString::new(format!("LemaoWindow_{}", timestamp)).unwrap();
+            let app_icon_cstr = CString::new("APP_ICON").unwrap();
+            let cursor_icon_cstr = CString::new("CURSOR_ICON").unwrap();
             let module_handle = winapi::GetModuleHandleA(ptr::null_mut());
 
             let wnd_class = winapi::WNDCLASS {
@@ -49,8 +51,8 @@ impl WindowWinAPI {
                 style: winapi::CS_OWNDC,
                 cbClsExtra: 0,
                 cbWndExtra: 0,
-                hIcon: winapi::LoadIconA(ptr::null_mut(), 32512 as *const i8),
-                hCursor: winapi::LoadCursorA(ptr::null_mut(), 32512 as *const i8),
+                hIcon: winapi::LoadImageA(module_handle, app_icon_cstr.as_ptr(), winapi::IMAGE_ICON, 0, 0, winapi::LR_DEFAULTSIZE) as *mut winapi::HICON__,
+                hCursor: winapi::LoadImageA(module_handle, cursor_icon_cstr.as_ptr(), winapi::IMAGE_ICON, 0, 0, winapi::LR_DEFAULTSIZE) as *mut winapi::HICON__,
                 lpszMenuName: ptr::null_mut(),
             };