Implemented that each road, node in managers will be stored as pointers (allocated in heap)

src/infrastructure/road_manager.zig

@@ -4,7 +4,7 @@ const Node = @import("node.zig").Node;
 
 pub const RoadManager = struct {
     next_id: usize,
-    roads: std.ArrayList(Road),
+    roads: std.ArrayList(*Road),
 
     pub fn init() RoadManager {
         return .{
@@ -14,6 +14,9 @@ pub const RoadManager = struct {
     }
 
     pub fn deinit(self: *RoadManager, allocator: std.mem.Allocator) void {
+        for (self.roads.items) |road| {
+            allocator.destroy(road);
+        }
         self.roads.deinit(allocator);
     }
 
@@ -25,9 +28,11 @@ pub const RoadManager = struct {
 
     pub fn addRoad(self: *RoadManager, allocator: std.mem.Allocator, start: *Node, end: *Node) !void {
         const road: Road = .init(self.getNextID(), start, end);
-        try self.roads.append(allocator, road);
+        const road_ptr = try allocator.create(Road);
+        road_ptr.* = road;
+        try self.roads.append(allocator, road_ptr);
 
-        const ref = &self.roads.items[self.roads.items.len - 1];
+        const ref = self.roads.items[self.roads.items.len - 1];
         try start.referenceRoad(allocator, ref);
         try end.referenceRoad(allocator, ref);
     }
@@ -39,7 +44,10 @@ pub const RoadManager = struct {
         return id;
     }
 
-    pub fn clear(self: *RoadManager) void {
+    pub fn clear(self: *RoadManager, allocator: std.mem.Allocator) void {
+        for (self.roads.items) |road| {
+            allocator.destroy(road);
+        }
         self.roads.clearRetainingCapacity();
         self.next_id = 0;
     }