Add more difficulty

src/map.rs

@@ -10,6 +10,7 @@ use crate::rect::Rect;
 pub enum TileType {
     Wall,
     Floor,
+    DownStairs,
 }
 
 pub const MAP_WIDTH: usize = 80;
@@ -27,6 +28,7 @@ pub struct Map {
     pub revealed_tiles: Vec<bool>,
     pub visible_tiles: Vec<bool>,
     pub blocked: Vec<bool>,
+    pub depth: i32,
 
     #[serde(skip_serializing)]
     #[serde(skip_deserializing)]
@@ -85,7 +87,7 @@ impl Map {
         }
     }
 
-    pub fn new_map_rooms_and_corridors() -> Map {
+    pub fn new_map_rooms_and_corridors(new_depth: i32) -> Map {
         let mut map = Map {
             tiles: vec![TileType::Wall; MAP_COUNT],
             rooms: Vec::new(),
@@ -95,6 +97,7 @@ impl Map {
             visible_tiles: vec![false; MAP_COUNT],
             blocked: vec![false; MAP_COUNT],
             tile_content: vec![Vec::new(); MAP_COUNT],
+            depth: new_depth,
         };
 
         const MAX_ROOMS: i32 = 30;
@@ -134,6 +137,10 @@ impl Map {
             }
         }
 
+        let stairs_position = map.rooms[map.rooms.len() - 1].center();
+        let stairs_idx = map.xy_idx(stairs_position.0, stairs_position.1);
+        map.tiles[stairs_idx] = TileType::DownStairs;
+
         map
     }
 }
@@ -211,6 +218,11 @@ pub fn draw_map(ecs: &World, ctx: &mut Rltk) {
                     fg = RGB::from_f32(0., 1.0, 0.);
                     glyph = rltk::to_cp437('#');
                 }
+
+                TileType::DownStairs => {
+                    glyph = rltk::to_cp437('>');
+                    fg = RGB::from_f32(0., 1., 1.);
+                }
             }
             if !map.visible_tiles[idx] {
                 fg = fg.to_greyscale()