Added model for knowledge of the game's state

Will be useful to track deductions that have already been made.

1 files changed, 23 insertions, 2 deletions

diff --git a/src/lib.rs b/src/lib.rs
index 5dda02f..81dd845 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,5 +1,9 @@
 extern crate json;
 extern crate rand;
+extern crate serde;
+extern crate serde_json;
+#[macro_use]
+extern crate serde_derive;
 
 mod actions;
 mod math;
@@ -8,6 +12,7 @@ mod ships;
 mod placement;
 mod shooting;
 mod state;
+mod knowledge;
 
 use math::*;
 use files::*;
@@ -15,17 +20,23 @@ use ships::*;
 use placement::*;
 use shooting::*;
 use state::*;
+use knowledge::*;
 
 use std::path::PathBuf;
 
 pub fn write_move(working_dir: PathBuf) -> Result<(), String> {
     let state_json = read_file(&working_dir)?;
 
-    println!("\n\n{}\n\n", state_json.pretty(2));
-
     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)
     }
@@ -34,8 +45,18 @@ pub fn write_move(working_dir: PathBuf) -> Result<(), String> {
         shoot_randomly(&state)
     };
 
+    let ending_knowledge = starting_knowledge
+        .with_action(action.clone());
+
+    write_knowledge(&ending_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("")));
     
     Ok(())
 }