From 7dd0fe43fe7e72e5f56a8a61bbaec3a78399e6c8 Mon Sep 17 00:00:00 2001
From: Justin Worthe <justin.worthe@gmail.com>
Date: Sat, 20 May 2017 18:01:43 +0200
Subject: Moved ship placement knowledge out to be one per ship

---
 src/lib.rs | 40 ++++++++++++++++++++++------------------
 1 file changed, 22 insertions(+), 18 deletions(-)

(limited to 'src/lib.rs')

diff --git a/src/lib.rs b/src/lib.rs
index 81dd845..f84c172 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -14,6 +14,7 @@ mod shooting;
 mod state;
 mod knowledge;
 
+use actions::*;
 use math::*;
 use files::*;
 use ships::*;
@@ -30,34 +31,37 @@ pub fn write_move(working_dir: PathBuf) -> Result<(), String> {
     let is_place_phase = state_json["Phase"] == 1;
     let map_size = State::map_size_from_json(&state_json)?;
 
-    let starting_knowledge = if is_place_phase {
-        Knowledge::new()
-    }
-    else {
-        read_knowledge()?
-    };
-    
-    let action = if is_place_phase {
-        place_ships_randomly(map_size)
+    let (action, knowledge) = if is_place_phase {
+        placement(map_size)
     }
     else {
         let state = State::new(&state_json)?;
-        shoot_randomly(&state)
+        shoot(&state)?
     };
-
-    let ending_knowledge = starting_knowledge
-        .with_action(action.clone());
-
-    write_knowledge(&ending_knowledge)
+    
+    write_knowledge(&knowledge)
         .map_err(|e| format!("Failed to write knowledge to file. Error: {}", e))?;
         
     write_action(&working_dir, is_place_phase, action)
         .map_err(|e| format!("Failed to write action to file. Error: {}", e))?;
 
-    println!("Input state:\n{}\n\n", state_json);
-    println!("Existing knowledge:\n{}\n\n", serde_json::to_string(&starting_knowledge).unwrap_or(String::from("")));
-    println!("End of turn knowledge:\n{}\n\n", serde_json::to_string(&ending_knowledge).unwrap_or(String::from("")));
+    println!("Knowledge:\n{}\n\n", serde_json::to_string(&knowledge).unwrap_or(String::from("")));
     
     Ok(())
 }
 
+fn placement(map_size: u16) -> (Action, Knowledge) {
+    let action = place_ships_randomly(map_size);
+    let knowledge = Knowledge::new(map_size, action.clone());
+
+    (action, knowledge)
+}
+
+fn shoot(state: &State) -> Result<(Action, Knowledge), String> {
+    let old_knowledge = read_knowledge()?;
+    let knowledge = old_knowledge.resolve_last_action(&state);
+    let action = shoot_randomly(&state);
+    
+    Ok((action.clone(), knowledge.with_action(action)))
+}
+
-- 
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