Player movement

src/main.rs

@@ -1,5 +1,7 @@
 use bevy::{prelude::*, window::PresentMode};
 
+use crate::player::PlayerPlugin;
+
 mod player;
 
 fn main() {
@@ -15,6 +17,7 @@ fn main() {
         }))
         .insert_resource(ClearColor(Color::srgb(0.0, 0.0, 0.0)))
         .add_systems(Startup, setup)
+        .add_plugins(PlayerPlugin)
         .run();
 }
 

src/player.rs

@@ -12,11 +12,53 @@ struct Player;
 #[derive(Component)]
 struct Velocity(Vec2);
 
-// Spawn player
-fn spawn_player(mut command: Commands) {
-    command.spawn((
+// Spawn entity player
+fn spawn_player(mut commands: Commands) {
+    commands.spawn((
         Player,
         Velocity(Vec2::ZERO),
-        Sprite::from_color(Color::srgb(128.0, 0.0, 128.0), Vec2::new(20.0, 40.0)),
+        Sprite::from_color(Color::srgb(0.5, 0.5, 0.5), Vec2::new(20.0, 40.0)),
+        Transform::from_xyz(0.0, 350.0, 0.0), // Top of the screen
     ));
 }
+
+// Input + movement system for the player
+fn move_player(
+    input: Res<ButtonInput<KeyCode>>,
+    time: Res<Time>,
+    mut player: Query<(&mut Velocity, &mut Transform), With<Player>>,
+) {
+    // If matching entity
+    let Ok((mut velocity, mut transform)) = player.single_mut() else {
+        return;
+    };
+
+    // Change then horizontal direction regardless the input
+    let direction = if input.pressed(KeyCode::KeyA) {
+        -1.0
+    } else if input.pressed(KeyCode::KeyD) {
+        1.0
+    } else {
+        0.0
+    };
+
+    velocity.0 = Vec2::new(
+        direction * HORIZONTAL_SPEED,
+        -if input.pressed(KeyCode::KeyS) {
+            DIVE_SPEED
+        } else {
+            FALL_SPEED
+        },
+    );
+
+    transform.translation += velocity.0.extend(0.0) * time.delta_secs();
+}
+
+pub struct PlayerPlugin;
+
+impl Plugin for PlayerPlugin {
+    fn build(&self, app: &mut App) {
+        app.add_systems(Startup, spawn_player)
+            .add_systems(Update, move_player);
+    }
+}