remove unused code

battlesnake/src/logic.rs

@@ -24,73 +24,9 @@ use serde_json::{json, Value};
 
 use crate::{
     simulation::{self, SnakeToken},
-    Action, Battlesnake, Board, Direction, Game, MAX_HEALTH,
+    Action, Battlesnake, Board, Direction, Game,
 };
 
-impl Battlesnake {
-    fn possible_actions_without_heads<'a>(
-        &'a self,
-        game: &'a Game,
-        board: &'a Board,
-    ) -> impl Iterator<Item = Direction> + 'a {
-        enum_iterator::all::<Direction>()
-            .filter(|direction| {
-                // filter out directions that would go outside the field
-                let target = self.head.move_to(*direction);
-                (0..board.width).contains(&target.x) && (0..board.height).contains(&target.y)
-            })
-            .filter(|direction| {
-                let target = self.head.move_to(*direction);
-                // don't collide with any snake
-                !board
-                    .snakes
-                    .iter()
-                    .filter(|snake| {
-                        // filter out snakes that are in our squad if body collisions are allowed
-                        !(game.ruleset.settings.squad.allow_body_collisions
-                            && self.squad == snake.squad
-                            && self.id != snake.id)
-                    })
-                    .flat_map(|snake| {
-                        // get all coordinates of the snake body. The tail of the body can be ignored
-                        // if the snake hasn't just eaten, as it will move out of the way
-                        let has_eaten = snake.health == MAX_HEALTH;
-                        snake.body[..snake.body.len() - usize::from(!has_eaten)].iter()
-                    })
-                    .any(|&coord| coord == target)
-            })
-    }
-
-    #[must_use]
-    pub fn possible_actions(&self, game: &Game, board: &Board) -> Vec<Direction> {
-        self.possible_actions_without_heads(game, board)
-            .filter(|direction| {
-                // don't go into spots where a bigger snake must go
-                let target = self.head.move_to(*direction);
-                !board
-                    .snakes
-                    .iter()
-                    .filter(|snake| {
-                        // The other snake must be bigger than we are
-                        snake.length > self.length
-                    })
-                    .filter_map(|snake| {
-                        // get all snakes movement options
-                        let actions = snake
-                            .possible_actions_without_heads(game, board)
-                            .collect::<Vec<_>>();
-                        // only snakes that have a single option
-                        match actions[..] {
-                            [direction] => Some(snake.head.move_to(direction)),
-                            _ => None,
-                        }
-                    })
-                    .any(|coord| coord == target)
-            })
-            .collect()
-    }
-}
-
 // info is called when you create your Battlesnake on play.battlesnake.com
 // and controls your Battlesnake's appearance
 // TIP: If you open your Battlesnake URL in a browser you should see this data

battlesnake/src/main.rs

@@ -22,7 +22,7 @@ const MAX_HEALTH: i32 = 100;
     Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Clone, Copy, Deserialize, Serialize, Sequence,
 )]
 #[serde(rename_all = "lowercase")]
-pub enum Direction {
+enum Direction {
     /// Move left (-x)
     Left,
     /// Move up (+y)
@@ -34,7 +34,7 @@ pub enum Direction {
 }
 
 #[derive(Debug, Deserialize, Serialize)]
-pub struct Action {
+struct Action {
     /// In which direction the snake should move
     r#move: Direction,
     /// Say something to the other snakes
@@ -47,7 +47,7 @@ fn is_default<T: Default + PartialEq>(value: &T) -> bool {
 }
 
 #[derive(Deserialize, Serialize, Debug)]
-pub struct Game {
+struct Game {
     /// A unique identifier for this Game
     id: String,
     /// Information about the ruleset being used to run this game
@@ -70,7 +70,7 @@ pub struct Game {
 }
 
 #[derive(Debug, Deserialize, Serialize)]
-pub struct Ruleset {
+struct Ruleset {
     /// Name of the ruleset being used to run this game.
     name: String,
     /// The release version of the [Rules](https://github.com/BattlesnakeOfficial/rules) module used in this game.
@@ -81,7 +81,7 @@ pub struct Ruleset {
 }
 
 #[derive(Debug, Deserialize, Serialize)]
-pub struct RulesetSettings {
+struct RulesetSettings {
     /// Percentage chance of spawning a new food every round.
     #[serde(rename = "foodSpawnChance")]
     food_spawn_chance: u8,
@@ -99,7 +99,7 @@ pub struct RulesetSettings {
 }
 
 #[derive(Debug, Deserialize, Serialize)]
-pub struct RulesetRoyale {
+struct RulesetRoyale {
     /// The number of turns between generating new hazards (shrinking the safe board space).
     #[serde(rename = "shrinkEveryNTurns")]
     shrink_every_n_turns: i32,
@@ -107,7 +107,7 @@ pub struct RulesetRoyale {
 
 #[allow(clippy::struct_excessive_bools)]
 #[derive(Debug, Deserialize, Serialize)]
-pub struct RulesetSquad {
+struct RulesetSquad {
     /// Allow members of the same squad to move over each other without dying.
     #[serde(rename = "allowBodyCollisions")]
     allow_body_collisions: bool,
@@ -123,7 +123,7 @@ pub struct RulesetSquad {
 }
 
 #[derive(Deserialize, Serialize, Debug, Clone)]
-pub struct Board {
+struct Board {
     /// The number of rows in the y-axis of the game board.
     height: i32,
     /// The number of columns in the x-axis of the game board.
@@ -138,7 +138,7 @@ pub struct Board {
 }
 
 #[derive(Deserialize, Serialize, Debug, Clone)]
-pub struct Battlesnake {
+struct Battlesnake {
     /// Unique identifier for this Battlesnake in the context of the current Game
     id: String,
     /// Name given to this Battlesnake by its author
@@ -165,7 +165,7 @@ pub struct Battlesnake {
 }
 
 #[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Clone, Copy, Deserialize, Serialize)]
-pub struct Coord {
+struct Coord {
     x: i32,
     y: i32,
 }
@@ -183,7 +183,7 @@ impl Coord {
 }
 
 #[derive(Deserialize, Serialize, Debug)]
-pub struct GameState {
+struct GameState {
     game: Game,
     turn: i32,
     board: Board,