From cb685efe0cc32112242d4f657ee802505d2e6dc4 Mon Sep 17 00:00:00 2001
From: Christopher <chris@grislygrotto.nz>
Date: Thu, 2 Mar 2023 13:48:42 +1300
Subject: [PATCH] random system damage on hit

---
 84_Super_Star_Trek/rust/src/commands.rs |  1 -
 84_Super_Star_Trek/rust/src/model.rs    | 17 +++++++++++++++++
 84_Super_Star_Trek/rust/tasks.md        |  5 +++--
 3 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/84_Super_Star_Trek/rust/src/commands.rs b/84_Super_Star_Trek/rust/src/commands.rs
index 86c72f98..c5e59c12 100644
--- a/84_Super_Star_Trek/rust/src/commands.rs
+++ b/84_Super_Star_Trek/rust/src/commands.rs
@@ -86,7 +86,6 @@ fn move_enterprise(course: u8, warp_speed: f32, galaxy: &mut Galaxy) {
         view::hit_edge(&end);
     }
     
-
     if ship.quadrant != end.quadrant {
         view::enter_quadrant(&end.quadrant);
         
diff --git a/84_Super_Star_Trek/rust/src/model.rs b/84_Super_Star_Trek/rust/src/model.rs
index f46cc548..c968c08a 100644
--- a/84_Super_Star_Trek/rust/src/model.rs
+++ b/84_Super_Star_Trek/rust/src/model.rs
@@ -60,7 +60,24 @@ impl Enterprise {
         }
 
         view::shields_hit(self.shields);
+        
         // take damage if strength is greater than 20
+        if hit_strength >= 20 {
+            self.take_damage(hit_strength)
+        }
+    }
+
+    fn take_damage(&mut self, hit_strength: u16) {
+        let mut rng = rand::thread_rng();
+
+        let hit_past_shield = hit_strength as f32 / self.shields as f32;
+        if rng.gen::<f32>() > 0.6 || hit_past_shield < 0.02 {
+            return
+        }
+
+        let system = systems::ALL[rng.gen_range(0..systems::ALL.len())].to_string();
+        let damage = hit_past_shield + rng.gen::<f32>() * 0.5;
+        self.damaged.entry(system).and_modify(|d| *d += damage).or_insert(damage);
     }
 }
 
diff --git a/84_Super_Star_Trek/rust/tasks.md b/84_Super_Star_Trek/rust/tasks.md
index 29f47cd3..c55914df 100644
--- a/84_Super_Star_Trek/rust/tasks.md
+++ b/84_Super_Star_Trek/rust/tasks.md
@@ -11,8 +11,9 @@ Started after movement and display of stats was finished (no energy management o
 - [x] shields
     - [x] shield control
     - [x] shield hit absorption
-- [ ] subsystem damage
-    - and support for reports
+- [x] subsystem damage
+    - [ ] and support for reports
+- [ ] random system damage on move
 - [ ] lrs?
 - [ ] stranded...
 - [ ] stop before hitting an object