From e20e7f0a9029d33c67869951371cc03965127b31 Mon Sep 17 00:00:00 2001
From: Justin Worthe <justin@worthe-it.co.za>
Date: Fri, 28 Jun 2019 20:15:13 +0200
Subject: Function to give all valid bomb moves (also rustfmt)

---
 src/game.rs | 82 +++++++++++++++++++++++++++++++++++++++++++------------------
 1 file changed, 58 insertions(+), 24 deletions(-)

diff --git a/src/game.rs b/src/game.rs
index 5fe22a3..7c6b649 100644
--- a/src/game.rs
+++ b/src/game.rs
@@ -448,16 +448,16 @@ impl GameBoard {
 
     pub fn valid_moves_for_worm(&self, worm: &Worm) -> ArrayVec<[Action; 8]> {
         Direction::all()
-                .iter()
-                .map(Direction::as_vec)
-                .map(|d| worm.position + d)
-                .filter(|p| !self.occupied_cells.contains(p))
-                .filter_map(|p| match self.map.at(p) {
-                    Some(false) => Some(Action::Move(p)),
-                    Some(true) => Some(Action::Dig(p)),
-                    _ => None,
-                })
-                .collect()
+            .iter()
+            .map(Direction::as_vec)
+            .map(|d| worm.position + d)
+            .filter(|p| !self.occupied_cells.contains(p))
+            .filter_map(|p| match self.map.at(p) {
+                Some(false) => Some(Action::Move(p)),
+                Some(true) => Some(Action::Dig(p)),
+                _ => None,
+            })
+            .collect()
     }
 
     pub fn valid_move_commands(&self, player_index: usize) -> ArrayVec<[Command; 24]> {
@@ -467,31 +467,65 @@ impl GameBoard {
             .flat_map(|w| self.valid_moves_for_worm(w))
             .map(Command::new);
 
-        self.valid_selects(player_index).iter()
+        self.valid_selects(player_index)
+            .iter()
             .flat_map(|select_worm| self.players[player_index].find_worm(*select_worm))
-            .flat_map(move |w| self.valid_moves_for_worm(w).into_iter().map(move |a| Command::with_select(w.id, a)))
+            .flat_map(move |w| {
+                self.valid_moves_for_worm(w)
+                    .into_iter()
+                    .map(move |a| Command::with_select(w.id, a))
+            })
             .chain(no_select)
             .collect()
     }
 
     pub fn valid_shoot_commands(&self, player_index: usize) -> ArrayVec<[Command; 24]> {
-        let all_dirs =  Direction::all();
-        let no_select = all_dirs
+        let all_dirs = Direction::all();
+        let no_select = all_dirs.iter().map(|d| Command::new(Action::Shoot(*d)));
+
+        self.valid_selects(player_index)
             .iter()
-            .map(|d| Command::new(Action::Shoot(*d)));
-        
-        self.valid_selects(player_index).iter().flat_map(|select_worm| {
-            all_dirs
-                .iter()
-                .map(move |d| Command::with_select(*select_worm, Action::Shoot(*d)))
-        }).chain(no_select)
+            .flat_map(|select_worm| {
+                all_dirs
+                    .iter()
+                    .map(move |d| Command::with_select(*select_worm, Action::Shoot(*d)))
+            })
+            .chain(no_select)
             .collect()
     }
 
     pub fn valid_bomb_commands(&self, player_index: usize) -> Vec<Command> {
-        // TODO: Bombs
-        // TODO: Select and bomb
-        Vec::new()
+        let agent_worm = self.players[player_index]
+            .worms
+            .iter()
+            .enumerate()
+            .find(|(_p, w)| w.bombs > 0);
+        match agent_worm {
+            Some((worm_i, worm)) => {
+                let select = if worm_i == self.players[player_index].active_worm {
+                    None
+                } else {
+                    Some(worm.id)
+                };
+
+                let mut result = Vec::with_capacity(11*11-12);
+
+                for y in worm.position.y - 5..=worm.position.y + 5 {
+                    for x in worm.position.x - 5..=worm.position.x + 5 {
+                        let target = Point2d::new(x, y);
+                        if (worm.position - target).magnitude_squared() < 36 {
+                            result.push(Command {
+                                worm: select,
+                                action: Action::Bomb(target)
+                            });
+                        }
+                    }
+                }
+                
+                result
+            }
+            None => Vec::new(),
+        }
     }
 
     pub fn sensible_shoot_commands(
-- 
cgit v1.2.3