diff --git a/server/gameserver/mapcollider.cc b/server/gameserver/mapcollider.cc
index 00ce619b..dd33e0e7 100644
--- a/server/gameserver/mapcollider.cc
+++ b/server/gameserver/mapcollider.cc
@@ -126,6 +126,7 @@ namespace mc
                          {
                              node->name
                          });
+                    childs[node->name] = node;
                     #else
                     A8_ABORT();
                     #endif
diff --git a/server/gameserver/mapinstance.cc b/server/gameserver/mapinstance.cc
index 3c6acfa1..09d8588a 100644
--- a/server/gameserver/mapinstance.cc
+++ b/server/gameserver/mapinstance.cc
@@ -870,19 +870,46 @@ void MapInstance::LoadHouse()
                                     map_service_->AddTriangle(&tri);
                                 }//end for i
                             } else if (c->type == mc::kBoxCollider) {
-                                mc::BoxCollider* box_collider = (mc::BoxCollider*)c;
-                                std::vector<glm::vec3> new_points;
-                                mc::RotateBounds(box_collider->center,
-                                                 box_collider->size,
-                                                 node->transform.local_rotation,
-                                                 new_points
-                                                 );
-                                box_collider->triangles.reserve(2 * 8);
+                              mc::BoxCollider* box_collider = (mc::BoxCollider*)c;
+                              if (node->name == "") {
+                                  printf("node->name %f,%f,%f %f,%f,%f\n",
+                                         node->name.c_str(),
+                                         box_collider->center.x,
+                                         box_collider->center.y,
+                                         box_collider->center.z,
+                                         box_collider->size.x,
+                                         box_collider->size.y
+                                         box_collider->size.z);
+                              }
+                              std::vector<glm::vec3> new_points;
+                              mc::RotateBounds(box_collider->center,
+                                               box_collider->size,
+                                               node->transform.local_rotation,
+                                               new_points
+                                               );
+                              box_collider->triangles.reserve(2 * 6);
+                              for (int i = 0; i < 12; ++i) {
                                 auto& tri = a8::FastAppend(box_collider->triangles);
                                 tri.node = node;
+                                tri.vert0 = new_points[box_tri_arr[i][0]];
+                                tri.vert1 = new_points[box_tri_arr[i][1]];
+                                tri.vert2 = new_points[box_tri_arr[i][2]];
+                                tri.min_y = tri.vert0.y;
+                                tri.max_y = tri.vert0.y;
+                                for (int ii = 1; ii < 3; ++ii) {
+                                  float y = new_points[box_tri_arr[i][ii]].y;
+                                  if (y < tri.min_y) {
+                                    tri.min_y = y;
+                                  }
+                                  if (y > tri.max_y) {
+                                  }
+                                } //endif ii
+                                tri.min_y -= 1.0f;
+                                tri.max_y += 1.0f;
                                 map_service_->AddTriangle(&tri);
-                            }//endif
-                        }//end forc
+                              }//endif
+                            }//end forc
+                        }
                         things_.push_back(node);
                     }
                 };