code: public void loadCollisions(MapTileCollision mapCollision,
                                 CollisionFormulaConfig formulasConfig,
                                 CollisionGroupConfig groupsConfig)
      {
          loadCollisionFormulas(formulasConfig);
          loadCollisionGroups(groupsConfig);
          loadTilesCollisions(mapCollision);
          applyConstraints();
      }
docs: Load map collision with default files.
  
  @param mapCollision The map tile collision owner.
  @param formulasConfig The collision formulas descriptor.
  @param groupsConfig The tile collision groups descriptor.
  @throws LionEngineException If error when reading collisions.