feat(bow): make arrows stick to walls

common/src/comp/projectile.rs

@@ -11,6 +11,7 @@ pub enum Effect {
 #[derive(Clone, Debug, Serialize, Deserialize)]
 pub struct Projectile {
     pub hit_ground: Vec<Effect>,
+    pub hit_wall: Vec<Effect>,
     pub hit_entity: Vec<Effect>,
 }
 

common/src/sys/controller.rs

@@ -145,6 +145,7 @@ impl<'a> System<'a> for Sys {
                                     dir: controller.look_dir,
                                     projectile: Projectile {
                                         hit_ground: vec![projectile::Effect::Stick],
+                                        hit_wall: vec![projectile::Effect::Stick],
                                         hit_entity: vec![
                                             projectile::Effect::Damage(10),
                                             projectile::Effect::Vanish,

common/src/sys/projectile.rs

@@ -38,10 +38,6 @@ impl<'a> System<'a> for Sys {
         )
             .join()
         {
-            if let Some(vel) = velocities.get(entity) {
-                ori.0 = vel.0.normalized();
-            }
-
             // Hit ground
             if physics.on_ground {
                 for effect in projectile.hit_ground.drain(..) {
@@ -53,6 +49,17 @@ impl<'a> System<'a> for Sys {
                     }
                 }
             }
+            // Hit wall
+            if physics.on_wall.is_some() {
+                for effect in projectile.hit_wall.drain(..) {
+                    match effect {
+                        projectile::Effect::Stick => {
+                            velocities.remove(entity);
+                        }
+                        _ => {}
+                    }
+                }
+            }
             // Hit entity
             if let Some(other) = physics.touch_entity {
                 for effect in projectile.hit_entity.drain(..) {
@@ -72,6 +79,10 @@ impl<'a> System<'a> for Sys {
                     }
                 }
             }
+
+            if let Some(vel) = velocities.get(entity) {
+                ori.0 = vel.0.normalized();
+            }
         }
     }
 }