velocity for projectiles

src/systems/dialog_system.rs

@@ -177,11 +177,23 @@ fn tick_displaying_bubbles(world: &mut World, delta: f32)
                 .with(bubble_entity, |t| t.position)
                 .unwrap_or(Vec3::ZERO);
 
+            let player_entity = world
+                .player_tags
+                .all()
+                .into_iter()
+                .next()
+                .expect("no player entity");
+            let player_pos = world
+                .transforms
+                .with(player_entity, |t| t.position)
+                .unwrap_or(Vec3::ZERO);
+
+            let velocity = player_pos - bubble_pos;
+
             let projectile_entity = world.spawn();
-            world.transforms.insert(
-                projectile_entity,
-                Transform::from_position(bubble_pos),
-            );
+            world
+                .transforms
+                .insert(projectile_entity, Transform::from_position(bubble_pos));
             world
                 .names
                 .insert(projectile_entity, "DialogProjectile".to_string());
@@ -192,6 +204,7 @@ fn tick_displaying_bubbles(world: &mut World, delta: f32)
                     bubble_entity,
                     correct_parry,
                     parry_window_open: false,
+                    velocity,
                 },
             );