use std::io::{self,Write};

fn main() -> io::Result<()> {
    let game = build_game();

    println!("// you enter the zone");
    loop {
        print!("> ");
        io::stdout().flush();

        match game.in_battle {
            false => {

        let mut line = String::new();
        io::stdin().read_line(&mut line)?;
        match line.trim() {
            "help"  => {
                println!("// maybe try 'loc'");
            },
            "loc" => {
                println!("// you stand at ({}, {})", game.adventurer.l.x, game.adventurer.l.y);
            },
            "step forward" => {
                let loc = game.adventurer.l;
                loc.x += 1;
                println!("// you step forward");
                for s in game.scarers.iter() {
                    if (loc.x, loc.y) == (s.l.x, s.l.y) {
                        println!("// oh no it's an {}", s.name)
                    }
                }
            },
            _ => {
                println!("// what is this {}?", line.trim())
            }
        }
            },
            true => {
            }
        }
    };
    Ok(())
}

fn build_game() -> Game {
    Game {
        in_battle: false,
        zone: Zone {
            width: 4,
            depth: 4,
        },
        adventurer: Adventurer {
            name: String::from("adv"),
            h: Humors {
                health: 1000,
                attack: 1,
                critical_pct: 10,
            },
            l: Location {
                x: 0,
                y: 0,
            }
        },
        scarers: vec![
            Scarer {
                name: String::from("Blue Minotaur"),
                description: String::from("Towering half bull with flaming nostrils"),
                h: Humors {
                    health: 4000,
                    attack: 4,
                    critical_pct: 2,
                },
                l: Location {
                    x: 2,
                    y: 2,
                },
            },
        ],
    }
}

struct Humors {
    health: u16,
    attack: u8,
    critical_pct: u8,
}

struct Location {
    x: u8,
    y: u8,
}

struct Adventurer {
    name: String,
    h: Humors,
    l: Location,
}

struct Scarer {
    name: String,
    description: String,
    h: Humors,
    l: Location,
}

struct Zone {
    width: u8,
    depth: u8,
}

struct Game {
    in_battle: bool,
    zone: Zone,
    adventurer: Adventurer,
    scarers: Vec<Scarer>,
}