Using implicit pointer derefs + fixing crashes on clearing entities

src/infrastructure/node_manager.zig

@@ -44,7 +44,7 @@ pub const NodeManager = struct {
             const road: Road = .init(0, node, &cur_node);
             road.draw(false);
 
-            node.*.draw(c.NODE_TEMP_COLOUR);
+            node.draw(c.NODE_TEMP_COLOUR);
             cur_node.draw(c.NODE_CURSOR_COLOUR);
         }
     }
@@ -77,6 +77,7 @@ pub const NodeManager = struct {
     pub fn clear(self: *NodeManager, allocator: std.mem.Allocator) !void {
         self.temp_node = null;
         for (self.nodes.items) |node| {
+            node.roads.clearRetainingCapacity();
             try node.deinit(allocator);
         }
         self.nodes.clearRetainingCapacity();