monster variety

src/main.rs

@@ -148,13 +148,19 @@ fn main() {
         })
         .build();
 
+    let mut rng = rltk::RandomNumberGenerator::new();
+
     for room in map.rooms.iter().skip(1) {
         let (x, y) = room.center();
+        let glyph = match rng.roll_dice(1,2) {
+            1 =>  { rltk::to_cp437('g') }
+            _ => { rltk::to_cp437('o') }
+        };
         gs.ecs
             .create_entity()
             .with(Position { x, y })
             .with(Renderable {
-                glyph: rltk::to_cp437('g'),
+                glyph: glyph,
                 fg: RGB::named(rltk::RED),
                 bg: RGB::named(rltk::BLACK),
             })