src/lib.rs


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extern crate json;
extern crate rand;
extern crate serde;
extern crate serde_json;
#[macro_use]
extern crate serde_derive;

mod actions;
mod math;
mod files;
mod ships;
mod placement;
mod shooting;
mod state;
mod knowledge;

use math::*;
use files::*;
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)?;

    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)
    }
    else {
        let state = State::new(&state_json)?;
        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(())
}