# Map Component Source code: [comp_map.go](../comp_map.go) The Map component stores a reference to a `hydra.map` (See [map.md](map.md)). Initially, an empty map is created. You can replace this by a map reference obtained from `hydra.map` however: this way, multiple clients can share a map and explore different areas of it. Handles the `blk_data` and `node_metas_changed` packets. May send `got_blks` packets. ## Functions `self:set(mapref)`: Data will be stored in `mapref` in the future. `self:get()`: Returns the current `mapref`.