From 1d6eeada8378e215689386bfdb76b38616a7e256 Mon Sep 17 00:00:00 2001
From: Dane Johnson <daneallenjohnson@protonmail.com>
Date: Fri, 20 May 2022 14:42:16 -0500
Subject: [PATCH] Cli player with some ability to play

---
 src/cli.rs  | 130 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 src/lib.rs  |   1 -
 src/main.rs |  21 ++++++++-
 3 files changed, 149 insertions(+), 3 deletions(-)
 create mode 100644 src/cli.rs

diff --git a/src/cli.rs b/src/cli.rs
new file mode 100644
index 0000000..faada8e
--- /dev/null
+++ b/src/cli.rs
@@ -0,0 +1,130 @@
+use coup::*;
+use Action::*;
+
+use std::io;
+use std::io::Write;
+
+#[derive(Debug)]
+pub struct HumanAgent {
+    turn: usize
+}
+
+impl HumanAgent {
+    pub fn new(turn: usize) -> Self {
+        HumanAgent { turn }
+    }
+
+    fn inform(&self, game: &Game) {
+        let player = &game.players[self.turn];
+        println!("Player {}:", self.turn);
+        match player.cards.as_slice() {
+            &[card1, card2] => println!("Your identities are {} and {}", card1, card2),
+            &[card] => println!("Your identity is {}", card),
+            _ => unreachable!(),
+        }
+        println!("Remaining players are:");
+        for id in 0..game.players.len() {
+            if id == self.turn || !game.players[id].is_alive() {
+                continue
+            }
+            println!("    Player {} with {} coins and {} influence",
+                     id, game.players[id].coins, game.players[id].cards.len());
+        }
+        println!("Discard is showing:");
+        for card in &game.discard {
+            println!("    {}", card);
+        }
+    }
+}
+
+impl Agent for HumanAgent {
+    fn choose_move(&self, game: &Game) -> Move {
+        self.inform(game);
+        println!("Choose an action");
+        let action = loop {
+            for i in 1..=7 {
+                println!("    {}) {}", i, get_action(i).unwrap());
+            }
+            let index = get_index();
+            if let Some(action) = get_action(index) {
+                break action;
+            } else {
+                println!("Bad choice");
+            }
+        };
+        let target = if action.is_targeted() { Some(get_index()) } else { None };
+        Move { action, target }
+    }
+    fn should_action_challenge(&self, game: &Game, move_: Move) -> bool {
+        self.inform(game);
+        loop {
+            if let Some(target) = move_.target {
+                if target == self.turn {
+                    print!("Will you challenge {} targeting you?", move_.action);
+                } else {
+                    print!("Will you challenge {} targeting Player {}?", move_.action, target);
+                }
+            } else {
+                print!("Will you challenge {}?", move_.action);
+            }
+            match yes_or_no() {
+                Some(b) => break b,
+                None => println!("Bad input"),
+            }
+        }
+    }
+    fn choose_block_card(&self, game: &Game, move_: Move) -> Option<Card> {
+        todo!();
+    }
+    fn should_block_challenge(&self, game: &Game, move_: Move, block: Block) -> bool {
+        todo!();
+    }
+    fn exchange(&self, game: &Game, cards: &[Card]) -> [Card; 2] {
+        todo!();
+    }
+    fn choose_lost_influence(&self, game: &Game) -> Card {
+        todo!();
+    }
+}
+
+fn get_action(index: usize) -> Option<Action> {
+    match index {
+        1 => Some(Income),
+        2 => Some(ForeignAid),
+        3 => Some(Coup),
+        4 => Some(Tax),
+        5 => Some(Assassinate),
+        6 => Some(Exchange),
+        7 => Some(Steal),
+        _ => None
+    }
+}
+
+fn get_index() -> usize {
+    let mut string = String::new();
+    io::stdin()
+        .read_line(&mut string)
+        .unwrap();
+    string
+        .trim()
+        .parse()
+        .unwrap()
+}
+
+fn yes_or_no() -> Option<bool> {
+    print!(" [y/n]: ");
+    io::stdout().flush().unwrap();
+    let mut string = String::new();
+    io::stdin()
+        .read_line(&mut string)
+        .unwrap();
+    let string = string.to_uppercase();
+    let string = string.trim();
+    if string.starts_with("Y") {
+        Some(true)
+    } else if string.starts_with("N") {
+        Some(false)
+    } else {
+        None
+    }
+}
diff --git a/src/lib.rs b/src/lib.rs
index 05ea960..ba0cbac 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -412,7 +412,6 @@ pub struct Block {
 /// some phases might be skipped. 
 #[derive(PartialEq, Debug)]
 pub enum Phase {
-    Action(Move),
     ActionChallenge(Move),
     Block(Move),
     BlockChallenge(Move, Block),
diff --git a/src/main.rs b/src/main.rs
index 8344815..bc9d233 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,5 +1,22 @@
 use coup::*;
 
-fn main() {
-    println!("Hello, world!");
+mod cli;
+use cli::HumanAgent;
+
+fn main() -> CoupResult<()> {
+    let mut game = Game::new(2);
+    let agents: &[&dyn Agent] = &[&HumanAgent::new(0), &HumanAgent::new(1)];
+    while !game.is_game_over() {
+        let mut phase = game.action(agents)?;
+        while phase != Phase::Done {
+            phase = match phase {
+                Phase::ActionChallenge(move_) => game.action_challenge(move_, agents)?,
+                Phase::Block(move_) => game.block(move_, agents)?,
+                Phase::BlockChallenge(move_, block) => game.block_challenge(move_, block, agents)?,
+                Phase::Resolution(move_) => game.resolution(move_, agents)?,
+                Phase::Done => unreachable!(),
+            }
+        }
+    }
+    Ok(())
 }