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tags: Sequencer-dungeon-spec
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# Optimizate the implementation

Up until now, we implement everything inside a single file `lib.rs`. We can split this file into specific modules as follows:

## Modules
a. Items:`item.rs`
b. Map: `map.rs`
c. Player: `player.rs`
d. Player actions: `player_actions.rs`
e. State: `state.rs`
f. Storage
`storage.rs` contains all the paths define in durable storage. Define functions for `load_state` and `update_state`.
g. Lib
`lib.rs` only contains the `entry` function.