elevate_lib/
elevators.rs

1//Import source modules
2use crate::elevator::Elevator;
3use crate::person::Person;
4use crate::people::People;
5
6/// # `Elevators` trait
7///
8/// A `Elevators` implementation is representative of a collection of `Elevator`s.
9/// It is implemented by the `Building` struct.
10pub trait Elevators {
11    fn get_dest_floors(&self) -> Vec<usize>;
12
13    fn get_energy_spent(&mut self) -> f64;
14
15    fn flush_people_leaving_elevators(&mut self) -> Vec<Vec<Person>>;
16
17    fn update_floors(&mut self);
18
19    fn increment_wait_times(&mut self);
20
21    fn append_elevator(&mut self, energy_up: f64, energy_down: f64, energy_coef: f64);
22}
23
24//Implementation of elevators trait for Vec<Elevators>
25impl Elevators for Vec<Elevator> {
26    /// Get an aggregated list of destination floors across the vector of elevators.
27    fn get_dest_floors(&self) -> Vec<usize> {
28        //Initialize a vector of usizes to track the overall dest floors
29        let mut dest_floors: Vec<usize> = Vec::new();
30
31        //Loop through the elevators and get the dest floor vectors
32        for elevator in self.iter() {
33            //Get the dest floors of the elevator
34            let elevator_dest_floors: Vec<usize> = elevator.get_dest_floors();
35
36            //Append the dest floors to the list of dest floors if not contained
37            for dest_floor in elevator_dest_floors.iter() {
38                if dest_floors.contains(dest_floor) {
39                    continue;
40                }
41                dest_floors.push(*dest_floor);
42            }
43        }
44
45        //Return the dest floors
46        dest_floors
47    }
48
49    /// Calculate the total energy spent across the vector of elevators.
50    fn get_energy_spent(&mut self) -> f64 {
51        //Initialize an f64 to aggregate the total energy spent
52        let mut energy_spent: f64 = 0.0_f64;
53
54        //Loop through the elevators and calculate their energy spent
55        for elevator in self.iter_mut() {
56            let elevator_energy_spent: f64 = elevator.get_energy_spent();
57
58            //Add the energy spent to the total
59            energy_spent += elevator_energy_spent;
60        }
61
62        //Return the aggregate energy spent
63        energy_spent
64    }
65
66    /// For each elevator, flush anyone leaving the elevator and aggregate each
67    /// resulting `Vec<Person>` into a `Vec<Vec<Person>>`.
68    fn flush_people_leaving_elevators(&mut self) -> Vec<Vec<Person>> {
69        //Initialize a vector of vectors of people
70        let mut people_leaving_elevators: Vec<Vec<Person>> = Vec::new();
71
72        //Loop through all the elevators and flush the people leaving the elevator
73        for elevator in self.iter_mut() {
74            let people_leaving_elevator: Vec<Person> = elevator.flush_people_leaving_elevator();
75
76            //Append to the list of people leaving the elevators
77            people_leaving_elevators.push(people_leaving_elevator);
78        }
79
80        //Return the vector of vectors of people leaving each elevator
81        people_leaving_elevators
82    }
83
84    /// For each elevator, update its floor based on its `stopped` boolean and its
85    /// `moving_up` boolean.
86    fn update_floors(&mut self) {
87        for elevator in self.iter_mut() {
88            elevator.update_floor();
89        }
90    }
91
92    /// For each elevator, increment the wait times of the people on the elevator if
93    /// they are not on their desired floor.
94    fn increment_wait_times(&mut self) {
95        for elevator in self.iter_mut() {
96            elevator.increment_wait_times();
97        }
98    }
99
100    /// Appends a new elevator to the collection of elevators
101    fn append_elevator(&mut self, energy_up: f64, energy_down: f64, energy_coef: f64) {
102        self.push(Elevator::from(energy_up, energy_down, energy_coef));
103    }
104}
elevate_lib/elevators.rs

elevate_lib/
elevators.rs
