fix npc aiming and shooting

crates/shared/src/ai/mod.rs

@@ -127,7 +127,7 @@ fn rotate(agent: Query<(Entity, &Engage)>, mut transform: Query<&mut Transform>)
         };
 
         // Get the direction vector from the current position to the target
-        let direction = (target_pos - agent_transform.translation).normalize();
+        let direction = (agent_transform.translation - target_pos).normalize();
 
         // Project the direction onto the XZ plane by zeroing out the Y component
         let xz_direction = Vec3::new(direction.x, 0.0, direction.z).normalize();

crates/shared/src/aim/mod.rs

@@ -146,7 +146,7 @@ fn update_npc_aim(
         let mut target_distance = f32::MAX;
 
         for (e, t) in potential_targets.iter() {
-            let delta = pos - t.translation;
+            let delta = t.translation - pos;
 
             let distance = delta.length();