Adds movement plugin, ball moves now

crates/core/src/core.rs

@@ -1,13 +1,16 @@
 
 use bevy::prelude::*;
 
+use crate::movement::{MovementPlugin, Velocity};
+
 pub struct CorePlugin;
 
 impl Plugin for CorePlugin
 {
 	fn build(&self, app: &mut App) 
 	{
-		app.add_systems(Startup, setup);
+		app.add_plugins(MovementPlugin)
+			.add_systems(Startup, setup);
 	}
 }
 
@@ -43,11 +46,12 @@ fn setup(mut commands: Commands, server: Res<AssetServer>, mut ambient_light: Re
 
 	// BALL
 	let ball_handle: Handle<Scene> = server.load("ball.glb#Scene0");
-	commands.spawn(SceneBundle {
+	commands.spawn((SceneBundle {
 		scene: ball_handle,
 		transform: Transform::from_xyz(0.0, -7.75, 0.0),
 		..default()
-	});
+		},
+		Velocity::new(0.5, 0.5, 0.0)));
 
 	// PADDLE
 	let paddle_handle: Handle<Scene> = server.load("paddle.glb#Scene0");

crates/core/src/lib.rs

@@ -1,3 +1,4 @@
 
 
 pub mod core;
+pub mod movement;

crates/core/src/movement.rs

@@ -0,0 +1,39 @@
+
+
+use bevy::prelude::*;
+
+pub struct MovementPlugin;
+impl Plugin for MovementPlugin
+{
+	fn build(&self, app: &mut App) 
+	{
+		app.add_systems(Update, update_movement);
+	}
+}
+
+#[derive(Component)]
+pub struct Velocity(Vec3);
+
+impl Default for Velocity
+{
+	fn default() -> Self 
+	{
+		Self { 0: Vec3::new(0.0, 0.0, 0.0)}
+	}
+}
+
+impl Velocity
+{
+	pub fn new(x: f32, y: f32, z: f32) -> Self{
+		Self { 0: Vec3::new(x, y, z) }
+	}
+}
+
+// SYSTEMS
+fn update_movement(mut moving_objects: Query<(&Velocity, &mut Transform)>, time: Res<Time>)
+{
+	for (velocity, mut transform) in moving_objects.iter_mut()
+	{
+		transform.translation += velocity.0 * time.delta_seconds();
+	}
+}