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//! contains types that represent units that appear in the game
use crate::Direction;
/// The Warrior (our protagonist), enemy Sludges and Archers, and Captives.
#[derive(Clone, Copy, Debug, PartialEq)]
pub enum UnitType {
Archer,
Captive,
Sludge,
ThickSludge,
Warrior,
Wizard,
}
impl UnitType {
/// A character (`&str` for convenience) representation of the unit type
pub fn draw(self) -> &'static str {
match self {
UnitType::Archer => "a",
UnitType::Captive => "C",
UnitType::Sludge => "s",
UnitType::ThickSludge => "S",
UnitType::Warrior => "@",
UnitType::Wizard => "w",
}
}
}
/// The state of a unit: its `position`, current/max `hp`, and `atk` power.
#[derive(Clone, Debug)]
pub struct Unit {
pub unit_type: UnitType,
pub position: (i32, i32),
pub hp: (i32, i32),
pub atk: i32,
pub facing: Option<Direction>,
}
impl Unit {
/// Create a unit of type `unit_type` at `position`.
pub fn new(unit_type: UnitType, position: (i32, i32)) -> Unit {
match unit_type {
UnitType::Archer => Unit::archer(position),
UnitType::Captive => Unit::captive(position),
UnitType::Sludge => Unit::sludge(position),
UnitType::ThickSludge => Unit::thick_sludge(position),
UnitType::Warrior => Unit::warrior(position),
UnitType::Wizard => Unit::wizard(position),
}
}
/// Create a unit of type Archer (7 HP, 3 ATK) at `position`.
pub fn archer(position: (i32, i32)) -> Unit {
Unit {
unit_type: UnitType::Archer,
position,
hp: (7, 7),
atk: 3,
facing: None,
}
}
/// Create a unit of type Captive (1 HP, 0 ATK) at `position`.
pub fn captive(position: (i32, i32)) -> Unit {
Unit {
unit_type: UnitType::Captive,
position,
hp: (1, 1),
atk: 0,
facing: None,
}
}
/// Create a unit of type Sludge (12 HP, 3 ATK) at `position`.
pub fn sludge(position: (i32, i32)) -> Unit {
Unit {
unit_type: UnitType::Sludge,
position,
hp: (12, 12),
atk: 3,
facing: None,
}
}
/// Create a unit of type ThickSludge (18 HP, 3 ATK) at `position`.
pub fn thick_sludge(position: (i32, i32)) -> Unit {
Unit {
unit_type: UnitType::ThickSludge,
position,
hp: (18, 18),
atk: 3,
facing: None,
}
}
/// Create a unit of type Warrior (20 HP, 5 ATK) at `position`.
pub fn warrior(position: (i32, i32)) -> Unit {
Unit {
unit_type: UnitType::Warrior,
position,
hp: (20, 20),
atk: 5,
facing: Some(Direction::Forward),
}
}
/// Create a unit of type Wizard (3 HP, 11 ATK) at `position`.
pub fn wizard(position: (i32, i32)) -> Unit {
Unit {
unit_type: UnitType::Wizard,
position,
hp: (3, 3),
atk: 11,
facing: None,
}
}
}