game_config.rs

/// All config-related options handled here

extern crate serialize;

use std::collections::HashMap;
use std::path::posix::Path;
use std::io::File;
use serialize::json;

#[deriving(Decodable, Encodable, Show)]
pub struct Keybindings {
    pub key_maps : HashMap<String, String>
}

#[deriving(Decodable, Encodable, Show)]
pub struct WindowOptions {
    pub width: u32,
    pub height: u32,
    pub fullscreen: bool,
}

#[deriving(Decodable, Encodable, Show)]
pub struct GameConfig {
    pub input  : Keybindings,
    pub window : WindowOptions
}

impl GameConfig {
    pub fn new(json_file: Path) -> GameConfig {
        let json_contents = File::open(&json_file).read_to_end();
        let config : GameConfig = json::decode(&json_contents);
        println!("{}", config);
        config
    }
}