input: fix input example and add cursor move events

crates/bevy_app/src/event/event.rs

@@ -1,11 +1,13 @@
 use legion::prelude::{ResMut, Resources};
 use std::marker::PhantomData;
 
+#[derive(Debug)]
 struct EventInstance<T> {
     pub event_count: usize,
     pub event: T,
 }
 
+#[derive(Debug)]
 enum State {
     A,
     B,
@@ -53,6 +55,7 @@ enum State {
 ///
 /// An alternative call pattern would be to call [Events::update] manually across frames to control when events are cleared. However
 /// this complicates consumption
+#[derive(Debug)]
 pub struct Events<T> {
     events_a: Vec<EventInstance<T>>,
     events_b: Vec<EventInstance<T>>,

crates/bevy_input/Cargo.toml

@@ -7,3 +7,4 @@ edition = "2018"
 [dependencies]
 bevy_app = { path = "../bevy_app" }
 legion = { path = "../bevy_legion" }
+glam = "0.8.7"

crates/bevy_input/src/mouse.rs

@@ -1,4 +1,5 @@
 use super::keyboard::ElementState;
+use glam::Vec2;
 
 #[derive(Debug, Clone)]
 pub struct MouseButtonInput {
@@ -16,5 +17,5 @@ pub enum MouseButton {
 
 #[derive(Debug, Clone)]
 pub struct MouseMotionInput {
-    pub delta: (f64, f64),
+    pub delta: Vec2,
 }

crates/bevy_window/Cargo.toml

@@ -7,4 +7,5 @@ edition = "2018"
 [dependencies]
 bevy_app = { path = "../bevy_app" }
 legion = { path = "../bevy_legion" }
+glam = "0.8.7"
 uuid = { version = "0.8", features = ["v4", "serde"] }

crates/bevy_window/src/event.rs

@@ -1,4 +1,5 @@
 use super::{WindowDescriptor, WindowId};
+use glam::Vec2;
 
 /// A window event that is sent whenever a window has been resized.
 #[derive(Debug, Clone)]
@@ -35,3 +36,9 @@ pub struct WindowCloseRequested {
     pub id: WindowId,
     pub is_primary: bool,
 }
+
+#[derive(Debug, Clone)]
+pub struct CursorMoved {
+    pub id: WindowId,    
+    pub position: Vec2,
+}

crates/bevy_window/src/lib.rs

@@ -31,6 +31,7 @@ impl AppPlugin for WindowPlugin {
             .add_event::<WindowCreated>()
             .add_event::<WindowCloseRequested>()
             .add_event::<CloseWindow>()
+            .add_event::<CursorMoved>()
             .init_resource::<Windows>();
 
         if let Some(ref primary_window_descriptor) = self.primary_window {

crates/bevy_winit/Cargo.toml

@@ -10,5 +10,6 @@ bevy_input = { path = "../bevy_input" }
 bevy_window = { path = "../bevy_window" }
 legion = { path = "../bevy_legion" }
 
-winit = { version = "0.22.1" }
+winit = { version = "0.22.2" }
+glam = "0.8.7"
 log = { version = "0.4", features = ["release_max_level_info"] }

crates/bevy_winit/src/lib.rs

@@ -9,8 +9,9 @@ use bevy_input::{
 
 use bevy_app::{App, AppBuilder, AppExit, AppPlugin, EventReader, Events, GetEventReader};
 use bevy_window::{
-    CreateWindow, Window, WindowCloseRequested, WindowCreated, WindowResized, Windows,
+    CreateWindow, CursorMoved, Window, WindowCloseRequested, WindowCreated, WindowResized, Windows,
 };
+use glam::Vec2;
 use legion::prelude::*;
 use winit::{
     event,
@@ -101,6 +102,16 @@ pub fn winit_runner(mut app: App) {
                         app.resources.get_mut::<Events<KeyboardInput>>().unwrap();
                     keyboard_input_events.send(converters::convert_keyboard_input(input));
                 }
+                WindowEvent::CursorMoved { position, .. } => {
+                    let mut cursor_moved_events =
+                        app.resources.get_mut::<Events<CursorMoved>>().unwrap();
+                    let winit_windows = app.resources.get_mut::<WinitWindows>().unwrap();
+                    let window_id = winit_windows.get_window_id(winit_window_id).unwrap();
+                    cursor_moved_events.send(CursorMoved {
+                        id: window_id,
+                        position: Vec2::new(position.x as f32, position.y as f32),
+                    });
+                }
                 WindowEvent::MouseInput { state, button, .. } => {
                     let mut mouse_button_input_events =
                         app.resources.get_mut::<Events<MouseButtonInput>>().unwrap();
@@ -115,7 +126,9 @@ pub fn winit_runner(mut app: App) {
                 DeviceEvent::MouseMotion { delta } => {
                     let mut mouse_motion_events =
                         app.resources.get_mut::<Events<MouseMotionInput>>().unwrap();
-                    mouse_motion_events.send(MouseMotionInput { delta: *delta });
+                    mouse_motion_events.send(MouseMotionInput {
+                        delta: Vec2::new(delta.0 as f32, delta.1 as f32),
+                    });
                 }
                 _ => {}
             },

examples/input/input_mouse.rs

@@ -2,6 +2,7 @@ use bevy::{
     input::mouse::{MouseButtonInput, MouseMotionInput},
     prelude::*,
 };
+use bevy_window::CursorMoved;
 
 fn main() {
     App::build()
@@ -15,13 +16,15 @@ fn main() {
 struct State {
     mouse_button_event_reader: EventReader<MouseButtonInput>,
     mouse_motion_event_reader: EventReader<MouseMotionInput>,
+    cursor_moved_event_reader: EventReader<CursorMoved>,
 }
 
 /// prints out mouse events as they come in
 fn mouse_input_system(
     mut state: ResMut<State>,
-    mouse_button_input_events: Com<Events<MouseButtonInput>>,
+    mouse_button_input_events: Res<Events<MouseButtonInput>>,
-    mouse_motion_events: Com<Events<MouseMotionInput>>,
+    mouse_motion_events: Res<Events<MouseMotionInput>>,
+    cursor_moved_events: Res<Events<CursorMoved>>,
 ) {
     for event in state
         .mouse_button_event_reader
@@ -33,4 +36,8 @@ fn mouse_input_system(
     for event in state.mouse_motion_event_reader.iter(&mouse_motion_events) {
         println!("{:?}", event);
     }
+
+    for event in state.cursor_moved_event_reader.iter(&cursor_moved_events) {
+        println!("{:?}", event);
+    }
 }