horizontal scrolling with shift

src/bin/client/input.rs

@@ -33,10 +33,14 @@ impl Input {
                 }
             }
             WindowEvent::MouseWheel { delta, .. } => {
-                let delta = match *delta {
+                let mut delta = match *delta {
                     MouseScrollDelta::LineDelta(x, y) => Vec2::new(x, y),
                     MouseScrollDelta::PixelDelta(pos) => Vec2::new(pos.x as f32, pos.y as f32),
                 };
+                if delta.x == 0.0 && self.modifiers.shift {
+                    delta.x = delta.y;
+                    delta.y = 0.0;
+                }
                 self.cursor.scroll_delta = delta;
             }
             WindowEvent::CursorLeft { .. } => {