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|
use std::fmt;
use std::str;
#[derive(Clone, Copy, PartialEq, Eq, Hash, Debug, Serialize, Deserialize)]
pub enum Weapon {
SingleShot,
DoubleShotVertical,
DoubleShotHorizontal,
CornerShot,
CrossShotDiagonal,
CrossShotHorizontal,
SeekerMissle
}
impl fmt::Display for Weapon {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
use Weapon::*;
f.write_str(
match self {
&SingleShot => "1",
&DoubleShotVertical => "2",
&DoubleShotHorizontal => "3",
&CornerShot => "4",
&CrossShotDiagonal => "5",
&CrossShotHorizontal => "6",
&SeekerMissle => "7"
}
)
}
}
impl Weapon {
pub fn energy_per_round(map_size: u16) -> u16 {
if map_size < 10 {
2
}
else if map_size < 14 {
3
}
else {
4
}
}
pub fn energy_cost(&self, map_size: u16) -> u16 {
use Weapon::*;
let epr = Weapon::energy_per_round(map_size);
match self {
&SingleShot => 1,
&DoubleShotVertical | &DoubleShotHorizontal => 8*epr,
&CornerShot => 10*epr,
&CrossShotDiagonal => 12*epr,
&CrossShotHorizontal => 14*epr,
&SeekerMissle => 10*epr
}
}
pub fn single_shot_rounds_to_ready(&self, current_energy: u16, map_size: u16) -> u16 {
let single_shot_cost = Weapon::SingleShot.energy_cost(map_size);
let energy_per_round = Weapon::energy_per_round(map_size) - single_shot_cost;
let required_energy = self.energy_cost(map_size) - current_energy;
//weird plus is to make the integer rounding up instead of down
(required_energy + energy_per_round - 1) / energy_per_round
}
}
#[derive(Clone, Copy, PartialEq, Eq, Hash, Debug, Serialize, Deserialize)]
pub enum Ship {
Battleship,
Carrier,
Cruiser,
Destroyer,
Submarine
}
impl fmt::Display for Ship {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
use Ship::*;
f.write_str(
match self {
&Battleship => "Battleship",
&Carrier => "Carrier",
&Cruiser => "Cruiser",
&Destroyer => "Destroyer",
&Submarine => "Submarine"
}
)
}
}
impl str::FromStr for Ship {
type Err = String;
fn from_str(s: &str) -> Result<Self, Self::Err> {
use Ship::*;
match s {
"Battleship" => Ok(Battleship),
"Carrier" => Ok(Carrier),
"Cruiser" => Ok(Cruiser),
"Destroyer" => Ok(Destroyer),
"Submarine" => Ok(Submarine),
_ => Err(String::from("ship type is not known"))
}
}
}
impl Ship {
pub fn length(&self) -> u16 {
use Ship::*;
match self {
&Battleship => 4,
&Carrier => 5,
&Cruiser => 3,
&Destroyer => 2,
&Submarine => 3
}
}
pub fn weapons(&self) -> Vec<Weapon> {
use Ship::*;
use Weapon::*;
match self {
&Battleship => vec!(SingleShot, CrossShotDiagonal),
&Carrier => vec!(SingleShot, CornerShot),
&Cruiser => vec!(SingleShot, CrossShotHorizontal),
&Destroyer => vec!(SingleShot, DoubleShotVertical, DoubleShotHorizontal),
&Submarine => vec!(SingleShot, SeekerMissle)
}
}
pub fn all_types() -> Vec<Ship> {
use Ship::*;
vec!(
Battleship,
Carrier,
Cruiser,
Destroyer,
Submarine
)
}
}
|
