implemented random controller

src/lib/controller.rs

@@ -1,6 +1,9 @@
+use rand::{distributions::Standard, prelude::Distribution};
+
 use super::grid::Grid;
 use std::{error::Error, fmt::Display};
 
+#[derive(Debug)]
 pub enum Move {
 	LEFT,
 	RIGHT,
@@ -8,6 +11,17 @@ pub enum Move {
 	DOWN,
 }
 
+impl Distribution<Move> for Standard {
+	fn sample<R: rand::Rng + ?Sized>(&self, rng: &mut R) -> Move {
+		match rng.gen_range(0..4) {
+			0 => Move::DOWN,
+			1 => Move::LEFT,
+			2 => Move::RIGHT,
+			_ => Move::UP,
+		}
+	}
+}
+
 #[derive(Debug)]
 pub enum ControllerError {
 	ExitSignal,
@@ -36,3 +50,5 @@ pub trait Controller {
 }
 
 pub mod player;
+pub mod random;
+pub mod simulated;

src/lib/controller/random.rs

@@ -0,0 +1,13 @@
+use rand::random;
+
+use super::{Controller, ControllerError, Move};
+use crate::lib::grid::Grid;
+
+pub struct RandomController;
+
+impl Controller for RandomController {
+	fn next_move(&mut self, _grid: &Grid) -> Result<Move, ControllerError> {
+		let movement = random();
+		Ok(movement)
+	}
+}