Making the group radius distinct from the minimum distance to connect 2 players

Also, changed default settings from 160px for Group Radius to 120px
(minimum distance to connect 2 players remains 160px)

back/src/Enum/EnvironmentVariable.ts

@@ -1,7 +1,11 @@
 const SECRET_KEY = process.env.SECRET_KEY || "THECODINGMACHINE_SECRET_KEY";
 const ROOM = process.env.ROOM || "THECODINGMACHINE";
+const MINIMUM_DISTANCE = process.env.MINIMUM_DISTANCE ? Number(process.env.MINIMUM_DISTANCE) : 160;
+const GROUP_RADIUS = process.env.GROUP_RADIUS ? Number(process.env.GROUP_RADIUS) : 128;
 
 export {
     SECRET_KEY,
-    ROOM
-}
+    ROOM,
+    MINIMUM_DISTANCE,
+    GROUP_RADIUS
+}