remove unused code
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6123ca177e
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4afbb37db7
@ -24,73 +24,9 @@ use serde_json::{json, Value};
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use crate::{
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use crate::{
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simulation::{self, SnakeToken},
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simulation::{self, SnakeToken},
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Action, Battlesnake, Board, Direction, Game, MAX_HEALTH,
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Action, Battlesnake, Board, Direction, Game,
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};
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};
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impl Battlesnake {
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fn possible_actions_without_heads<'a>(
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&'a self,
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game: &'a Game,
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board: &'a Board,
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) -> impl Iterator<Item = Direction> + 'a {
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enum_iterator::all::<Direction>()
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.filter(|direction| {
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// filter out directions that would go outside the field
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let target = self.head.move_to(*direction);
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(0..board.width).contains(&target.x) && (0..board.height).contains(&target.y)
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})
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.filter(|direction| {
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let target = self.head.move_to(*direction);
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// don't collide with any snake
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!board
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.snakes
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.iter()
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.filter(|snake| {
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// filter out snakes that are in our squad if body collisions are allowed
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!(game.ruleset.settings.squad.allow_body_collisions
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&& self.squad == snake.squad
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&& self.id != snake.id)
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})
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.flat_map(|snake| {
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// get all coordinates of the snake body. The tail of the body can be ignored
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// if the snake hasn't just eaten, as it will move out of the way
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let has_eaten = snake.health == MAX_HEALTH;
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snake.body[..snake.body.len() - usize::from(!has_eaten)].iter()
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})
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.any(|&coord| coord == target)
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})
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}
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#[must_use]
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pub fn possible_actions(&self, game: &Game, board: &Board) -> Vec<Direction> {
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self.possible_actions_without_heads(game, board)
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.filter(|direction| {
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// don't go into spots where a bigger snake must go
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let target = self.head.move_to(*direction);
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!board
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.snakes
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.iter()
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.filter(|snake| {
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// The other snake must be bigger than we are
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snake.length > self.length
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})
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.filter_map(|snake| {
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// get all snakes movement options
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let actions = snake
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.possible_actions_without_heads(game, board)
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.collect::<Vec<_>>();
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// only snakes that have a single option
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match actions[..] {
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[direction] => Some(snake.head.move_to(direction)),
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_ => None,
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}
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})
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.any(|coord| coord == target)
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})
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.collect()
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}
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}
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// info is called when you create your Battlesnake on play.battlesnake.com
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// info is called when you create your Battlesnake on play.battlesnake.com
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// and controls your Battlesnake's appearance
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// and controls your Battlesnake's appearance
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// TIP: If you open your Battlesnake URL in a browser you should see this data
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// TIP: If you open your Battlesnake URL in a browser you should see this data
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