# Design

## Actor
    |
    |
    |---> Unit_States (Interfaces: Includes both Soldiers and Villagers)
    |                   |----------> Attack_State
    |                   |----------> Move_State
    |                   |----------> Idle_State
    |                   |----------> Dead_State
    |
    |---> Factory_States (Interfaces)
    |                   |----------> Build_State
    |                   |----------> Idle_State
    |                   |----------> Produce_State
    |
    |---> Actor (Class)
    |         |----------> id
    |         |----------> increment_id
    |         |----------> player_id
    |         |----------> hp
    |         |----------> max_hp
    |         |----------> position
    |         |----------> actor_type
    |
    |---> Unit (Class: public Actor)
    |         |----------> unit_type
    |         |----------> unit_state
    |         |----------> speed
    |         |----------> attack_range
    |         |----------> attack_damage
    |         |----------> attack_target
    |         |----------> destination
    |         |----------> is_destination_set
    |         |----------> new_position
    |
    |---> Factory (Class: public Actor)
              |----------> factory_type (factory_type: [VILLAGER, SOLDIER])
              |----------> factory_state (factory_state: [BUILD, IDLE, PRODUCE])
              |----------> build_rate (double: Build percent increase per unit per move)
              |----------> build_rate_limit (double: Max rate at which build can be done)
              |----------> build_percent (double: Percentage of build complete)
              |----------> is_complete (bool: If build is complete)
              |----------> spawn_timer (time_t: Time taken to spawn a single unit)