diff --git a/84_Super_Star_Trek/rust/src/commands.rs b/84_Super_Star_Trek/rust/src/commands.rs
index 2bc28da8..38bc3508 100644
--- a/84_Super_Star_Trek/rust/src/commands.rs
+++ b/84_Super_Star_Trek/rust/src/commands.rs
@@ -40,7 +40,7 @@ pub fn gather_dir_and_speed_then_move(galaxy: &mut Galaxy, provided: Vec<String>
 
     let course = input::param_or_prompt_value(&provided, 0, view::prompts::COURSE, 1.0, 9.0);
     if course.is_none() {
-        view::bad_nav();
+        view::bad_course_data();
         return;
     }
 
@@ -53,7 +53,7 @@ pub fn gather_dir_and_speed_then_move(galaxy: &mut Galaxy, provided: Vec<String>
 
     let speed = input::param_or_prompt_value(&provided, 1, &view::prompts::warp_factor(max_warp), 0.0, 8.0);
     if speed.is_none() {
-        view::bad_nav();
+        view::bad_course_data();
         return;
     }
     
@@ -130,9 +130,27 @@ fn move_enterprise(course: f32, warp_speed: f32, galaxy: &mut Galaxy) {
 
     let ship = &mut galaxy.enterprise;
 
-    // todo account for being blocked
+    let (mut path, mut hit_edge) = find_nav_path(ship.quadrant, ship.sector, course, warp_speed);
+    for i in 0..path.len() {
+        let (quadrant, sector) = path[i].to_local_quadrant_sector();
+        if quadrant != ship.quadrant {
+            break; // have left current quadrant, so collision checks removed. if there is a collision at the dest... /shrug?
+        }
+        let quadrant = &galaxy.quadrants[quadrant.as_index()];
+        if quadrant.sector_status(sector) != SectorStatus::Empty {
+            path = path[..i].into();
+            hit_edge = false;
+            if i > 0 {
+                let (_, last_sector) = path[path.len() - 1].to_local_quadrant_sector();
+                view::bad_nav(last_sector);
+            } else {
+                view::bad_nav(ship.sector);
+                return;
+            }
+            break;
+        }
+    }
 
-    let (path, hit_edge) = find_nav_path(ship.quadrant, ship.sector, course, warp_speed);
     let energy_cost = path.len() as u16 + 10;
 
     if energy_cost > ship.total_energy {
diff --git a/84_Super_Star_Trek/rust/src/model.rs b/84_Super_Star_Trek/rust/src/model.rs
index 1e4359ed..10b97a4d 100644
--- a/84_Super_Star_Trek/rust/src/model.rs
+++ b/84_Super_Star_Trek/rust/src/model.rs
@@ -56,7 +56,7 @@ impl Enterprise {
             return;
         }
         
-        view::enterprise_hit(&hit_strength, &sector);
+        view::enterprise_hit(&hit_strength, sector);
 
         if self.shields <= hit_strength {
             view::enterprise_destroyed();
diff --git a/84_Super_Star_Trek/rust/src/view.rs b/84_Super_Star_Trek/rust/src/view.rs
index 1cc2d202..c276dee2 100644
--- a/84_Super_Star_Trek/rust/src/view.rs
+++ b/84_Super_Star_Trek/rust/src/view.rs
@@ -310,15 +310,19 @@ pub fn enterprise_destroyed() {
     println!("The Enterprise has been destroyed.  The Federation will be conquered.");
 }
 
-pub fn bad_nav() {
+pub fn bad_course_data() {
     println!("   Lt. Sulu reports, 'Incorrect course data, sir!'")
 }
 
+pub fn bad_nav(current_sector: Pos) {
+    println!("Warp engines shut down at sector {current_sector} dues to bad navigation")
+}
+
 pub fn bad_torpedo_course() {
     println!("   Ensign Chekov reports, 'Incorrect course data, sir!'")
 }
 
-pub fn enterprise_hit(hit_strength: &u16, from_sector: &Pos) {
+pub fn enterprise_hit(hit_strength: &u16, from_sector: Pos) {
     println!("{hit_strength} unit hit on Enterprise from sector {from_sector}");
 }
 
diff --git a/84_Super_Star_Trek/rust/tasks.md b/84_Super_Star_Trek/rust/tasks.md
deleted file mode 100644
index da9e49c9..00000000
--- a/84_Super_Star_Trek/rust/tasks.md
+++ /dev/null
@@ -1,49 +0,0 @@
-# Tasks
-
-Started after movement and display of stats was finished (no energy management or collision detection or anything).
-
-- [x] klingon movement
-- [x] klingon firing, game over etc
-- [x] add intro
-- [x] add entering (and starting in) sector headers
-- [x] conditions and danger messages
-- [x] remove energy on move
-- [x] shields
-    - [x] shield control
-    - [x] shield hit absorption
-- [x] subsystem damage
-    - [x] and support for reports
-- [x] random system damage or repairs on move
-- [x] lrs?
-- [x] stranded...
-- [ ] stop before hitting an object
-    - when moving across a sector, the enterprise should stop before it runs into something
-    - the current move is a jump, which makes this problematic. would need to rewrite it
-    - also, movement courses could be floats, according to the instructions, allowing for more precise movement and aiming
-- [x] better command reading - support entering multiple values on a line (e.g. nav 3 0.1)
-- [x] starbases
-    - [x] proximity detection for docking
-    - [x] repair on damage control
-    - [x] protection from shots
-- [x] weapons
-    - [x] phasers
-    - [x] torpedoes
-- [x] computer
-    - [x] 0 - output of all short and long range scans (requires tracking if a system has been scanned)
-    - [x] 1 - klingons, starbases, stardate and damage control
-    - [x] 2 - photon torpedo data: direction and distance to all local klingons
-    - [x] 3 - starbase distance and dir locally
-    - [x] 4 - direction/distance calculator (useful for nav actions I guess)
-    - [x] 5 - galactic name map
- 
-- [x] restarting the game
-    - [x] after defeat
-    - [x] and by resigning
-- [x] time progression
-    - [x] check all areas where time should move, and adjust accordingly
-        - looks to only be on nav and repair
-    - [x] defeat due to time expired
-- [x] intro instructions
-- [x] victory
-- [x] switch from x,y to y,x
-- [ ] uppercase prompts?
\ No newline at end of file