crates/border-wars/src/scenes/lobby.rs

@@ -69,7 +69,7 @@ fn lobby_ui(
             return;
         }
 
-        ui.add(egui::Slider::new(&mut (*map_size), 0..=10).text("map size"));
+        ui.add(egui::Slider::new(&mut (*map_size), 0..=5).text("map size"));
 
         if ui.button("Run the game").clicked() {
             for player in all_players_query.iter() {
@@ -77,10 +77,27 @@ fn lobby_ui(
                     player.uuid,
                     StartGame(StartMapGeneration {
                         seed: 0,
-                        radius: 10,
+                        radius: get_map_sizes(all_players_query.iter().count() as u64)
+                            [*map_size as usize] as u16
+                            * 2,
                     }),
                 ));
             }
         }
     });
 }
+
+fn get_map_sizes(number_of_players: u64) -> Vec<u64> {
+    let mut result = Vec::with_capacity(6);
+
+    let mut current = 0;
+    while result.len() < 6 {
+        current += 1;
+
+        if (current * 6) % number_of_players == 0 {
+            result.push(current);
+        }
+    }
+
+    result
+}