Add ability to spawn items and enemies in corridors

src/map_builders.rs

@@ -13,6 +13,7 @@ mod room_based_spawner;
 mod room_based_stairs;
 mod room_based_starting_position;
 mod room_corner_rounding;
+mod room_corridor_spawner;
 mod room_draw;
 mod room_exploder;
 mod room_sorter;
@@ -40,6 +41,7 @@ use room_based_spawner::RoomBasedSpawner;
 use room_based_stairs::RoomBasedStairs;
 use room_based_starting_position::RoomBasedStartingPosition;
 use room_corner_rounding::RoomCornerRounder;
+use room_corridor_spawner::CorridorSpawner;
 use room_draw::RoomDrawer;
 use room_exploder::RoomExploder;
 use room_sorter::{RoomSort, RoomSorter};

src/map_builders/room_corridor_spawner.rs

@@ -0,0 +1,30 @@
+use rltk::RandomNumberGenerator;
+
+use super::{BuilderMap, MetaMapBuilder};
+use crate::spawner;
+
+pub struct CorridorSpawner {}
+
+impl MetaMapBuilder for CorridorSpawner {
+    fn build_map(&mut self, rng: &mut RandomNumberGenerator, build_data: &mut BuilderMap) {
+        self.build(rng, build_data);
+    }
+}
+
+impl CorridorSpawner {
+    #[allow(dead_code)]
+    pub fn new() -> Box<CorridorSpawner> {
+        Box::new(CorridorSpawner {})
+    }
+
+    fn build(&mut self, rng: &mut RandomNumberGenerator, build_data: &mut BuilderMap) {
+        if let Some(corridors) = &build_data.corridors {
+            for c in corridors.iter() {
+                let depth = build_data.map.depth;
+                spawner::spawn_region(&build_data.map, rng, &c, depth, &mut build_data.spawn_list);
+            }
+        } else {
+            panic!("Corridor Based Spawning only works after corridors have been created.");
+        }
+    }
+}