Gate gamepad support behind a feature flag

This is to make it possible to compile bedrock-pc without gamepad
support, which is useful when the target platform doesn't have the
libraries for udev (required by the gilrs dependency).

This commit is a bit of a hack, it'd be nice to implement this better
some day.

1 files changed, 12 insertions, 12 deletions

diff --git a/src/emulators/graphical_emulator.rs b/src/emulators/graphical_emulator.rs
index 3d7ea4a..503a8f4 100644
--- a/src/emulators/graphical_emulator.rs
+++ b/src/emulators/graphical_emulator.rs
@@ -1,11 +1,9 @@
 use crate::*;
 
-use gilrs::Gilrs;
-
-
 pub struct GraphicalEmulator {
     pub br: BedrockEmulator<GraphicalDeviceBus>,
     pub debug: DebugState,
+    #[cfg(feature = "gamepad")]
     pub gilrs: Option<Gilrs>,
 
     pub fullscreen: bool,
@@ -19,18 +17,18 @@ pub struct GraphicalEmulator {
 
 impl GraphicalEmulator {
     pub fn new(config: EmulatorConfig, debug: bool) -> Self {
-        let gilrs = match Gilrs::new() {
-            Ok(gilrs) => Some(gilrs),
-            Err(err) => {
-                info!("Could not start gamepad listener: {}", err);
-                None
-            }
-        };
-
         Self {
             br: BedrockEmulator::new(GraphicalDeviceBus::new(&config)),
             debug: DebugState::new(debug, config.symbols_path.as_ref()),
-            gilrs,
+
+            #[cfg(feature = "gamepad")]
+            gilrs: match Gilrs::new() {
+                Ok(gilrs) => Some(gilrs),
+                Err(err) => {
+                    info!("Could not start gamepad listener: {}", err);
+                    None
+                }
+            },
 
             fullscreen: config.fullscreen,
             scale: config.zoom.into(),
@@ -205,6 +203,8 @@ impl WindowProgram for GraphicalEmulator {
 
     fn process(&mut self, requests: &mut EventWriter<Request>) {
         self.br.dev.stream.flush();
+
+        #[cfg(feature = "gamepad")]
         if let Some(gilrs) = &mut self.gilrs {
             while let Some(event) = gilrs.next_event() {
                 self.br.dev.input.on_gamepad_event(event);